updated docs

Signed-off-by: Nwusongqing <wusongqing@huawei.com>

en/application-dev/reference/apis/Readme-EN.md

 # APIs
 
+- Ability Framework
+    -   [FeatureAbility Module](js-apis-featureAbility.md)
+    -   [ParticleAbility Module](js-apis-particleAbility.md)
+    -   [DataAbilityHelper Module](js-apis-dataAbilityHelper.md)
+    -   [DataUriUtils Module](js-apis-DataUriUtils.md)
+    -   [Context Module](js-apis-Context.md)
+    -   [CommonEvent Module](js-apis-commonEvent.md)
+    -   [Notification Module](js-apis-notification.md)
+-   Media
+    -   [Audio Management](js-apis-audio.md)
+    -   [Media Playback and Recording](js-apis-media.md)
 -   [Console Logs](console-logs.md)
 -   [HiAppEvent](hiappevent.md)
 -   [Page Routing](page-routing.md)
 -   [Pop-up Window](pop-up-window.md)
 -   [Timer](timer.md)
--   [Audio Management](js-apis-audio.md)
 -   [Audio Playback](audio-playback.md)
 -   [Device Information](device-information.md)
 -   [System Attribute](system-attribute.md)

en/application-dev/reference/apis/js-apis-Context.md

+# Context Module
+
+## Applicable Devices
+
+| API                                                          | Phone| Tablet| Smart TV| Wearable| Lite Wearable| SmartVision Device|
+| ------------------------------------------------------------ | ---- | ---- | ------ | -------- | -------------- | ------------ |
+| Context.getOrCreateLocalDir(callback: AsyncCallback\<string>) | Yes| Yes| Yes| Yes| No| No|
+| Context.getOrCreateLocalDir()                                | Yes| Yes| Yes| Yes| No| No|
+| Context.verifyPermission(permission: string, options: PermissionOptions, callback: AsyncCallback\<number>) | Yes| Yes| Yes| Yes| No| No|
+| Context.verifyPermission(permission: string, callback: AsyncCallback\<number>) | Yes| Yes| Yes| Yes| No| No|
+| Context.verifyPermission(permission: string, options?: PermissionOptions) | Yes| Yes| Yes| Yes| No| No|
+| Context.requestPermissionsFromUser(permissions: Array\<string>, requestCode: number, resultCallback: AsyncCallback\<PermissionRequestResult>) | Yes| Yes| Yes| Yes| No| No|
+| Context.getApplicationInfo(callback: AsyncCallback\<ApplicationInfo>) | Yes| Yes| Yes| Yes| No| No|
+| Context.getApplicationInfo()                                 | Yes| Yes| Yes| Yes| No| No|
+| Context.getBundleName(callback: AsyncCallback\<string>)      | Yes| Yes| Yes| Yes| No| No|
+| Context.getBundleName()                                      | Yes| Yes| Yes| Yes| No| No|
+| Context.getProcessInfo(callback: AsyncCallback\<ProcessInfo>) | Yes| Yes| Yes| Yes| No| No|
+| Context.getProcessInfo()                                     | Yes| Yes| Yes| Yes| No| No|
+| Context.getElementName(callback: AsyncCallback\<ElementName>) | Yes| Yes| Yes| Yes| No| No|
+| Context.getElementName()                                     | Yes| Yes| Yes| Yes| No| No|
+| Context.getProcessName(callback: AsyncCallback\<string>)     | Yes| Yes| Yes| Yes| No| No|
+| Context.getProcessName()                                     | Yes| Yes| Yes| Yes| No| No|
+| Context.getCallingBundle(callback: AsyncCallback\<string>)   | Yes| Yes| Yes| Yes| No| No|
+| Context.getCallingBundle()                                   | Yes| Yes| Yes| Yes| No| No|
+
+## Modules to Import
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+import bundle from '@ohos.bundle'
+```
+
+The **Context** object is created in a **featureAbility** and returned through its **getContext()** method. Therefore, you must import the **@ohos.ability.featureAbility** package before using the Context module. An example is as follows:
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getOrCreateLocalDir()
+```
+
+## Context.getOrCreateLocalDir(callback: AsyncCallback<string>)
+
+- Functionality
+
+  Obtains the local root directory of the application. If this method is called for the first time, a root directory is created. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ---------------------- | ---- | ------------------------ |
+| callback | Read-only| AsyncCallback\<string> | Yes| Callback used to return the local root directory of the application.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getOrCreateLocalDir((err, data)=>{
+    console.info("data=" + data);
+})
+```
+
+
+
+## Context.getOrCreateLocalDir()
+
+- Functionality
+
+  Obtains the local root directory of the application. If this method is called for the first time, a root directory is created. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return values
+
+  | Type| Description|
+  | --------------- | -------------------- |
+  | Promise<string> | Promise used to return the local root directory of the application.|
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getOrCreateLocalDir().then((void) => {
+	console.info("==========================>getOrCreateLocalDirCallback=======================>");
+});
+```
+
+## PermissionOptions
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---- | -------- | ------ | ---- | ------ |
+| pid  | Read-only| number | No| PID.|
+| uid  | Read-only| number | No| UID.|
+
+## Context.verifyPermission(permission: string, options: PermissionOptions, callback: AsyncCallback<number>)
+
+- Functionality
+
+  Verifies whether a specific PID and UID have the given permission. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ----------------------------------------------- | ---- | ----------------------------------- |
+| permission | Read-only| string                                          | Yes| Name of the permission to verify.|
+| options    | Read-only| [PermissionOptions](#PermissionOptions)| Yes| Permission options.|
+| callback   | Read-only| AsyncCallback\<number>                          | Yes| Callback used to return the permission verification result. The value **0** indicates that the PID and UID have the given permission, and the value **-1** indicates that the PID and UID do not have the given permission.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+import bundle from '@ohos.bundle'
+var context = featureAbility.getContext();
+var datainfo = await bundle.getBundleInfo('com.context.test',1);
+context.verifyPermission("com.example.permission",datainfo.uid)
+
+```
+
+
+
+## Context.verifyPermission(permission: string, callback: AsyncCallback<number>)
+
+- Functionality
+
+  Verifies whether the current PID and UID have the given permission. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ---------------------- | ---- | ----------------------------------- |
+| permission | Read-only| string                 | Yes| Name of the permission to verify.|
+| callback   | Read-only| AsyncCallback\<number> | Yes| Callback used to return the permission verification result. The value **0** indicates that the PID and UID have the given permission, and the value **-1** indicates that the PID and UID do not have the given permission.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.verifyPermission("com.example.permission")
+```
+
+
+
+## Context.verifyPermission(permission: string, options?: PermissionOptions)
+
+- Functionality
+
+  Verifies whether a specific PID and UID have the given permission. This method uses a promise to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ----------------------------------------------- | ---- | -------------- |
+| permission | Read-only| string                                          | Yes| Name of the permission to verify.|
+| options    | Read-only| [PermissionOptions](#PermissionOptions)| No| Permission options.|
+
+- Return values
+
+  | Type| Description|
+  | --------------- | ------------------------------------------------------------ |
+  | Promise<number> | Promise used to return the permission verification result. The value **0** indicates that the PID and UID have the given permission, and the value **-1** indicates that the PID and UID do not have the given permission.|
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+var Permission = context.PermissionOptions(1,1);
+context.getOrCreateLocalDir('com.context.permission',Permission).then((void) => {
+	console.info("==========================>verifyPermissionCallback=======================>");
+});
+```
+
+## PermissionRequestResult
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----------- | -------- | -------------- | ---- | ------------------ |
+| requestCode | Read-only| number         | Yes| Request code passed.|
+| permissions | Read-only| Array\<string> | Yes| Permissions passed.|
+| authResults | Read-only| Array\<number> | Yes| Permission request result.|
+
+
+
+## Context.requestPermissionsFromUser(permissions: Array<string>, requestCode: number, resultCallback: AsyncCallback<[PermissionRequestResult](#PermissionRequestResult)>)
+
+- Functionality
+
+  Requests certain permissions from the system. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------------- | -------- | ------------------------------------------------------------ | ---- | --------------------------------------------- |
+| permissions    | Read-only| Array\<string>                                               | Yes| Permissions to request. This parameter cannot be **null**.|
+| requestCode    | Read-only| number                                                       | Yes| Request code to be passed to **PermissionRequestResult**.|
+| resultCallback | Read-only| AsyncCallback\<[PermissionRequestResult](#PermissionRequestResult)> | Yes| Permission request result.|
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getOrCreateLocalDir(    
+    ["com.example.permission1",
+     "com.example.permission2",
+     "com.example.permission3",
+     "com.example.permission4",
+     "com.example.permission5"],
+    1,
+)
+```
+
+
+
+## Context.getApplicationInfo(callback: AsyncCallback<ApplicationInfo>)
+
+- Functionality
+
+  Obtains information about the current application. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | ------------------------------- | ---- | ---------------------- |
+  | callback | Read-only| AsyncCallback\<ApplicationInfo> | Yes| Callback used to return the application information.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getApplicationInfo()
+```
+
+
+
+## Context.getApplicationInfo
+
+- Functionality
+
+  Obtains information about the current application. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return values
+
+  | Type| Description|
+  | ------------------------ | ------------------ |
+  | Promise<ApplicationInfo> | Promise used to return the application information.|
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getApplicationInfo().then((void) => {
+	console.info("==========================>getApplicationInfoCallback=======================>");
+});
+```
+
+
+
+##  Context.getBundleName(callback: AsyncCallback<string>)
+
+- Functionality
+
+  Obtains the bundle name of the current ability. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | ---------------------- | ---- | --------------------------- |
+  | callback | Read-only| AsyncCallback\<string> | Yes| Callback used to return the bundle name.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getBundleName()
+```
+
+
+
+## Context.getBundleName
+
+- Functionality
+
+  Obtains the bundle name of the current ability. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return values
+
+  | Type| Description|
+  | --------------- | ----------------------- |
+  | Promise<string> | Promise used to return the bundle name.|
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getBundleName().then((void) => {
+	console.info("==========================>getBundleNameCallback=======================>");
+});
+```
+
+
+
+##  Context.getProcessInfo(callback: AsyncCallback<ProcessInfo>)
+
+- Functionality
+
+  Obtains information about the current process, including the PID and process name. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | --------------------------- | ---- | ------------------ |
+  | callback | Read-only| AsyncCallback\<ProcessInfo> | Yes| Callback used to return the process information.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getProcessInfo()
+```
+
+
+
+## Context.getProcessInfo
+
+- Functionality
+
+  Obtains information about the current process, including the PID and process name. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return values
+
+  | Type| Description|
+  | -------------------- | -------------- |
+  | Promise<ProcessInfo> | Promise used to return the process information.|
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getProcessInfo().then((void) => {
+	console.info("==========================>getProcessInfoCallback=======================>");
+});
+```
+
+
+
+##  Context.getElementName(callback: AsyncCallback<ElementName>)
+
+- Functionality
+
+  Obtains the **ohos.bundle.ElementName** object of the current ability. This method is available only to Page abilities. It uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | --------------------------- | ---- | -------------------------------------------- |
+  | callback | Read-only| AsyncCallback\<ElementName> | Yes| Callback used to return the **ohos.bundle.ElementName** object.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getElementName()
+```
+
+
+
+## Context.getElementName
+
+- Functionality
+
+  Obtains the **ohos.bundle.ElementName** object of the current ability. This method is available only to Page abilities. It uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return values
+
+  | Type| Description|
+  | -------------------- | ---------------------------------------- |
+  | Promise<ElementName> | Promise used to return the **ohos.bundle.ElementName** object.|
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getElementName().then((void) => {
+	console.info("==========================>getElementNameCallback=======================>");
+});
+```
+
+##   **Context.getProcessName(callback: AsyncCallback<string>)**
+
+- Functionality
+
+  Obtains the name of the current process. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | ---------------------- | ---- | ------------------ |
+  | callback | Read-only| AsyncCallback\<string> | Yes| Callback used to return the process name.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getProcessName()
+```
+
+
+
+## Context.getProcessName
+
+- Functionality
+
+  Obtains the name of the current process. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return values
+
+  | Type| Description|
+  | --------------- | -------------- |
+  | Promise<string> | Promise used to return the process name.|
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getProcessName().then((void) => {
+	console.info("==========================>getProcessNameCallback=======================>");
+});
+```
+
+
+
+## Context.getCallingBundle(callback: AsyncCallback<string>)
+
+- Functionality
+
+  Obtains the bundle name of the calling ability. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | ---------------------- | ---- | ------------------------- |
+  | callback | Read-only| AsyncCallback\<string> | Yes| Callback used to return the bundle name.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getCallingBundle()
+```
+
+
+
+## Context.getCallingBundle
+
+- Functionality
+
+  Obtains the bundle name of the calling ability. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return values
+
+  | Type| Description|
+  | --------------- | ------------------------- |
+  | Promise<string> | Promise used to return the bundle name.|
+
+  
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var context = featureAbility.getContext();
+context.getCallingBundle().then((void) => {
+	console.info("==========================>getCallingBundleCallback=======================>");
+});
+```

en/application-dev/reference/apis/js-apis-DataUriUtils.md

+# DataUriUtils Module
+
+## Modules to Import
+
+```js
+import dataUriUtils from '@ohos.ability.dataUriUtils';
+```
+
+## DataUriUtils.getId
+
+- Functionality
+
+  Obtains the ID attached to the end of a given URI.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---- | -------- | ------ | ---- | ------------------------- |
+| uri  | Read-only| string | Yes| URI object from which the ID is to be obtained.|
+
+- Return values
+
+  Returns the ID obtained from the URI object.
+
+- Example
+
+```js
+import dataUriUtils from '@ohos.ability.datauriutils'
+dataUriUtils.getIdSync("com.example.dataUriUtils/1221")
+```
+
+
+
+## DataUriUtils.attachId
+
+- Functionality
+
+  Attaches an ID to the end of a given URI.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---- | -------- | ------ | ---- | ------------------------- |
+| uri  | Read-only| string | Yes| URI object to which an ID is to be attached.|
+| id   | Read-only| number | Yes| ID to be attached.|
+
+- Return values
+
+  Returns the URI object with the ID attached.
+
+- Example
+
+```js
+import dataUriUtils from '@ohos.ability.datauriutils'
+var idint = 1122;
+dataUriUtils.attachId(
+    "com.example.dataUriUtils"
+	idint,
+)
+```
+
+
+
+## DataUriUtils.deleteId
+
+- Functionality
+
+  Deletes the ID from the end of a given URI.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---- | -------- | ------ | ---- | ------------------------- |
+  | uri  | Read-only| string | Yes| URI object from which the ID is to be deleted.|
+
+- Return values
+
+  Returns the URI object with the ID deleted.
+
+- Example
+
+```js
+import dataUriUtils from '@ohos.ability.datauriutils'
+dataUriUtils.deleteId("com.example.dataUriUtils/1221")
+```
+
+
+
+## DataUriUtils.updateId
+
+- Functionality
+
+  Updates the ID in a given URI.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---- | -------- | ------ | ---- | ------------------- |
+  | uri  | Read-only| string | Yes| URI object to be updated.|
+  | id   | Read-only| number | Yes| New ID.|
+
+- Return values
+
+  Returns the URI object with the new ID.
+
+- Example
+
+```js
+import dataUriUtils from '@ohos.ability.datauriutils'
+var idint = 1122;
+dataUriUtils.updateId(
+    "com.example.dataUriUtils"
+	idint,
+)
+```

en/application-dev/reference/apis/js-apis-commonEvent.md

+# CommonEvent Module
+
+**Note:**
+The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
+
+## Applicable Devices
+
+| API                                                          | Phone| Tablet| Smart TV| Wearable| Lite Wearable|
+| ------------------------------------------------------------ | ---- | ---- | ------ | -------- | -------------- |
+| CommonEvent.publish(event: string, callback: AsyncCallback\<void>) | Yes| Yes| Yes| Yes| No|
+| CommonEvent.publish(event: string, options: CommonEventPublishData, callback: AsyncCallback\<void>) | Yes| Yes| Yes| Yes| No|
+| CommonEvent.createSubscriber(subscribeInfo: CommonEventSubscribeInfo, callback: AsyncCallback\<CommonEventSubscriber>) | Yes| Yes| Yes| Yes| No|
+| CommonEvent.createSubscriber(subscribeInfo: CommonEventSubscribeInfo) | Yes| Yes| Yes| Yes| No|
+| CommonEvent.subscribe(subscriber: CommonEventSubscriber, callback: AsyncCallback\<CommonEventData>) | Yes| Yes| Yes| Yes| No|
+| CommonEvent.unsubscribe(subscriber: CommonEventSubscriber, callback?: AsyncCallback\<void>) | Yes| Yes| Yes| Yes| No|
+
+## Required Permissions
+
+| Common Event Macro| Common Event Name| Subscriber Permissions|
+| ------------------------------------------------------------ | ----------------------------------------------------------- | ------------------------------------------------------------ |
+| COMMON_EVENT_BOOT_COMPLETED                                  | usual.event.BOOT_COMPLETED                                  | ohos.permission.RECEIVER_STARTUP_COMPLETED                   |
+| COMMON_EVENT_SHUTDOWN                                        | usual.event.SHUTDOWN                                        | N/A|
+| COMMON_EVENT_BATTERY_CHANGED                                 | usual.event.BATTERY_CHANGED                                 | N/A|
+| COMMON_EVENT_BATTERY_LOW                                     | usual.event.BATTERY_LOW                                     | N/A|
+| COMMON_EVENT_BATTERY_OKAY                                    | usual.event.BATTERY_OKAY                                    | N/A|
+| COMMON_EVENT_POWER_CONNECTED                                 | usual.event.POWER_CONNECTED                                 | N/A|
+| COMMON_EVENT_POWER_DISCONNECTED                              | usual.event.POWER_DISCONNECTED                              | N/A|
+| COMMON_EVENT_SCREEN_OFF                                      | usual.event.SCREEN_OFF                                      | N/A|
+| COMMON_EVENT_SCREEN_ON                                       | usual.event.SCREEN_ON                                       | N/A|
+| COMMON_EVENT_USER_PRESENT                                    | usual.event.USER_PRESENT                                    | N/A|
+| COMMON_EVENT_TIME_TICK                                       | usual.event.TIME_TICK                                       | N/A|
+| COMMON_EVENT_TIME_CHANGED                                    | usual.event.TIME_CHANGED                                    | N/A|
+| COMMON_EVENT_DATE_CHANGED                                    | usual.event.DATE_CHANGED                                    | N/A|
+| COMMON_EVENT_TIMEZONE_CHANGED                                | usual.event.TIMEZONE_CHANGED                                | N/A|
+| COMMON_EVENT_CLOSE_SYSTEM_DIALOGS                            | usual.event.CLOSE_SYSTEM_DIALOGS                            | N/A|
+| COMMON_EVENT_PACKAGE_ADDED                                   | usual.event.PACKAGE_ADDED                                   | N/A|
+| COMMON_EVENT_PACKAGE_REPLACED                                | usual.event.PACKAGE_REPLACED                                | N/A|
+| COMMON_EVENT_MY_PACKAGE_REPLACED                             | usual.event.MY_PACKAGE_REPLACED                             | N/A|
+| COMMON_EVENT_PACKAGE_REMOVED                                 | usual.event.PACKAGE_REMOVED                                 | N/A|
+| COMMON_EVENT_PACKAGE_FULLY_REMOVED                           | usual.event.PACKAGE_FULLY_REMOVED                           | N/A|
+| COMMON_EVENT_PACKAGE_CHANGED                                 | usual.event.PACKAGE_CHANGED                                 | N/A|
+| COMMON_EVENT_PACKAGE_RESTARTED                               | usual.event.PACKAGE_RESTARTED                               | N/A|
+| COMMON_EVENT_PACKAGE_DATA_CLEARED                            | usual.event.PACKAGE_DATA_CLEARED                            | N/A|
+| COMMON_EVENT_PACKAGES_SUSPENDED                              | usual.event.PACKAGES_SUSPENDED                              | N/A|
+| COMMON_EVENT_PACKAGES_UNSUSPENDED                            | usual.event.PACKAGES_UNSUSPENDED                            | N/A|
+| COMMON_EVENT_MY_PACKAGE_SUSPENDED                            | usual.event.MY_PACKAGE_SUSPENDED                            | N/A|
+| COMMON_EVENT_MY_PACKAGE_UNSUSPENDED                          | usual.event.MY_PACKAGE_UNSUSPENDED                          | N/A|
+| COMMON_EVENT_UID_REMOVED                                     | usual.event.UID_REMOVED                                     | N/A|
+| COMMON_EVENT_PACKAGE_FIRST_LAUNCH                            | usual.event.PACKAGE_FIRST_LAUNCH                            | N/A|
+| COMMON_EVENT_PACKAGE_NEEDS_VERIFICATION                      | usual.event.PACKAGE_NEEDS_VERIFICATION                      | N/A|
+| COMMON_EVENT_PACKAGE_VERIFIED                                | usual.event.PACKAGE_VERIFIED                                | N/A|
+| COMMON_EVENT_EXTERNAL_APPLICATIONS_AVAILABLE                 | usual.event.EXTERNAL_APPLICATIONS_AVAILABLE                 | N/A|
+| COMMON_EVENT_EXTERNAL_APPLICATIONS_UNAVAILABLE               | usual.event.EXTERNAL_APPLICATIONS_UNAVAILABLE               | N/A|
+| COMMON_EVENT_CONFIGURATION_CHANGED                           | usual.event.CONFIGURATION_CHANGED                           | N/A|
+| COMMON_EVENT_LOCALE_CHANGED                                  | usual.event.LOCALE_CHANGED                                  | N/A|
+| COMMON_EVENT_MANAGE_PACKAGE_STORAGE                          | usual.event.MANAGE_PACKAGE_STORAGE                          | N/A|
+| COMMON_EVENT_DRIVE_MODE                                      | common.event.DRIVE_MODE                                     | N/A|
+| COMMON_EVENT_HOME_MODE                                       | common.event.HOME_MODE                                      | N/A|
+| COMMON_EVENT_OFFICE_MODE                                     | common.event.OFFICE_MODE                                    | N/A|
+| COMMON_EVENT_USER_STARTED                                    | usual.event.USER_STARTED                                    | N/A|
+| COMMON_EVENT_USER_BACKGROUND                                 | usual.event.USER_BACKGROUND                                 | N/A|
+| COMMON_EVENT_USER_FOREGROUND                                 | usual.event.USER_FOREGROUND                                 | N/A|
+| COMMON_EVENT_USER_SWITCHED                                   | usual.event.USER_SWITCHED                                   | ohos.permission.MANAGE_USERS                                 |
+| COMMON_EVENT_USER_UNLOCKED                                   | usual.event.USER_UNLOCKED                                   | N/A|
+| COMMON_EVENT_USER_STOPPED                                    | usual.event.USER_STOPPED                                    | N/A|
+| COMMON_EVENT_HWID_LOGIN                                      | common.event.HWID_LOGIN                                     | N/A|
+| COMMON_EVENT_HWID_LOGOUT                                     | common.event.HWID_LOGOUT                                    | N/A|
+| COMMON_EVENT_HWID_TOKEN_INVALID                              | common.event.HWID_TOKEN_INVALID                             | N/A|
+| COMMON_EVENT_HWID_LOGOFF                                     | common.event.HWID_LOGOFF                                    | N/A|
+| COMMON_EVENT_WIFI_POWER_STATE                                | usual.event.wifi.POWER_STATE                                | N/A|
+| COMMON_EVENT_WIFI_SCAN_FINISHED                              | usual.event.wifi.SCAN_FINISHED                              | ohos.permission.LOCATION                                     |
+| COMMON_EVENT_WIFI_RSSI_VALUE                                 | usual.event.wifi.RSSI_VALUE                                 | ohos.permission.GET_WIFI_INFO                                |
+| COMMON_EVENT_WIFI_CONN_STATE                                 | usual.event.wifi.CONN_STATE                                 | N/A|
+| COMMON_EVENT_WIFI_HOTSPOT_STATE                              | usual.event.wifi.HOTSPOT_STATE                              | N/A|
+| COMMON_EVENT_WIFI_AP_STA_JOIN                                | usual.event.wifi.WIFI_HS_STA_JOIN                           | ohos.permission.GET_WIFI_INFO                                |
+| COMMON_EVENT_WIFI_AP_STA_LEAVE                               | usual.event.wifi.WIFI_HS_STA_LEAVE                          | ohos.permission.GET_WIFI_INFO                                |
+| COMMON_EVENT_WIFI_P2P_CONN_STATE                             | usual.event.wifi.p2p.CONN_STATE_CHANGE                      | ohos.permission.GET_WIFI_INFO and ohos.permission.LOCATION   |
+| COMMON_EVENT_WIFI_P2P_STATE_CHANGED                          | usual.event.wifi.p2p.STATE_CHANGE                           | ohos.permission.GET_WIFI_INFO                                |
+| COMMON_EVENT_WIFI_P2P_PEERS_STATE_CHANGED                    | usual.event.wifi.p2p.DEVICES_CHANGE                         | ohos.permission.GET_WIFI_INFO                                |
+| COMMON_EVENT_WIFI_P2P_PEERS_DISCOVERY_STATE_CHANGED          | usual.event.wifi.p2p.PEER_DISCOVERY_STATE_CHANGE            | ohos.permission.GET_WIFI_INFO                                |
+| COMMON_EVENT_WIFI_P2P_CURRENT_DEVICE_STATE_CHANGED           | usual.event.wifi.p2p.CURRENT_DEVICE_CHANGE                  | ohos.permission.GET_WIFI_INFO                                |
+| COMMON_EVENT_WIFI_P2P_GROUP_STATE_CHANGED                    | usual.event.wifi.p2p.GROUP_STATE_CHANGED                    | ohos.permission.GET_WIFI_INFO                                |
+| COMMON_EVENT_BLUETOOTH_A2DPSOURCE_AVRCP_CONNECT_STATE_UPDATE | usual.event.bluetooth.a2dpsource.AVRCP_CONNECT_STATE_UPDATE | ohos.permission.USE_BLUETOOTH                                |
+| COMMON_EVENT_BLUETOOTH_REMOTEDEVICE_SDP_RESULT               | usual.event.bluetooth.remotedevice.SDP_RESULT               | N/A|
+| COMMON_EVENT_BLUETOOTH_REMOTEDEVICE_PAIRING_CANCEL           | usual.event.bluetooth.remotedevice.PAIRING_CANCEL           | N/A|
+| COMMON_EVENT_BLUETOOTH_REMOTEDEVICE_CONNECT_REQ              | usual.event.bluetooth.remotedevice.CONNECT_REQ              | N/A|
+| COMMON_EVENT_BLUETOOTH_REMOTEDEVICE_CONNECT_REPLY            | usual.event.bluetooth.remotedevice.CONNECT_REPLY            | N/A|
+| COMMON_EVENT_BLUETOOTH_REMOTEDEVICE_CONNECT_CANCEL           | usual.event.bluetooth.remotedevice.CONNECT_CANCEL           | N/A|
+| COMMON_EVENT_BLUETOOTH_HANDSFREEUNIT_CONNECT_STATE_UPDATE    | usual.event.bluetooth.handsfreeunit.CONNECT_STATE_UPDATE    | N/A|
+| COMMON_EVENT_BLUETOOTH_HANDSFREEUNIT_AUDIO_STATE_UPDATE      | usual.event.bluetooth.handsfreeunit.AUDIO_STATE_UPDATE      | N/A|
+| COMMON_EVENT_BLUETOOTH_HANDSFREEUNIT_AG_COMMON_EVENT         | usual.event.bluetooth.handsfreeunit.AG_COMMON_EVENT         | N/A|
+| COMMON_EVENT_BLUETOOTH_HANDSFREEUNIT_AG_CALL_STATE_UPDATE    | usual.event.bluetooth.handsfreeunit.AG_CALL_STATE_UPDATE    | N/A|
+| COMMON_EVENT_BLUETOOTH_HOST_REQ_DISCOVERABLE                 | usual.event.bluetooth.host.REQ_DISCOVERABLE                 | N/A|
+| COMMON_EVENT_NFC_ACTION_ADAPTER_STATE_CHANGED                | usual.event.nfc.action.ADAPTER_STATE_CHANGED                | N/A|
+| COMMON_EVENT_DISCHARGING                                     | usual.event.DISCHARGING                                     | N/A|
+| COMMON_EVENT_CHARGING                                        | usual.event.CHARGING                                        | N/A|
+| COMMON_EVENT_DEVICE_IDLE_MODE_CHANGED                        | usual.event.DEVICE_IDLE_MODE_CHANGED                        | N/A|
+| COMMON_EVENT_POWER_SAVE_MODE_CHANGED                         | usual.event.POWER_SAVE_MODE_CHANGED                         | N/A|
+| COMMON_EVENT_USER_ADDED                                      | usual.event.USER_ADDED                                      | ohos.permission.MANAGE_USERS                                 |
+| COMMON_EVENT_USER_REMOVED                                    | usual.event.USER_REMOVED                                    | ohos.permission.MANAGE_USERS                                 |
+| COMMON_EVENT_LOCATION_MODE_STATE_CHANGED                     | usual.event.location.MODE_STATE_CHANGED                     | N/A|
+| COMMON_EVENT_IVI_SLEEP                                       | common.event.IVI_SLEEP                                      | N/A|
+| COMMON_EVENT_IVI_PAUSE                                       | common.event.IVI_PAUSE                                      | N/A|
+| COMMON_EVENT_IVI_STANDBY                                     | common.event.IVI_STANDBY                                    | N/A|
+| COMMON_EVENT_IVI_LASTMODE_SAVE                               | common.event.IVI_LASTMODE_SAVE                              | N/A|
+| COMMON_EVENT_IVI_VOLTAGE_ABNORMAL                            | common.event.IVI_VOLTAGE_ABNORMAL                           | N/A|
+| COMMON_EVENT_IVI_HIGH_TEMPERATURE                            | common.event.IVI_HIGH_TEMPERATURE                           | N/A|
+| COMMON_EVENT_IVI_EXTREME_TEMPERATURE                         | common.event.IVI_EXTREME_TEMPERATURE                        | N/A|
+| COMMON_EVENT_IVI_TEMPERATURE_ABNORMAL                        | common.event.IVI_TEMPERATURE_ABNORMAL                       | N/A|
+| COMMON_EVENT_IVI_VOLTAGE_RECOVERY                            | common.event.IVI_VOLTAGE_RECOVERY                           | N/A|
+| COMMON_EVENT_IVI_TEMPERATURE_RECOVERY                        | common.event.IVI_TEMPERATURE_RECOVERY                       | N/A|
+| COMMON_EVENT_IVI_ACTIVE                                      | common.event.IVI_ACTIVE                                     | N/A|
+| COMMON_EVENT_USB_DEVICE_ATTACHED                             | usual.event.hardware.usb.action.USB_DEVICE_ATTACHED         | N/A|
+| COMMON_EVENT_USB_DEVICE_DETACHED                             | usual.event.hardware.usb.action.USB_DEVICE_DETACHED         | N/A|
+| COMMON_EVENT_USB_ACCESSORY_ATTACHED                          | usual.event.hardware.usb.action.USB_ACCESSORY_ATTACHED      | N/A|
+| COMMON_EVENT_USB_ACCESSORY_DETACHED                          | usual.event.hardware.usb.action.USB_ACCESSORY_DETACHED      | N/A|
+| COMMON_EVENT_DISK_REMOVED                                    | usual.event.data.DISK_REMOVED                               | ohos.permission.WRITE_USER_STORAGE or ohos.permission.READ_USER_STORAGE |
+| COMMON_EVENT_DISK_UNMOUNTED                                  | usual.event.data.DISK_UNMOUNTED                             | ohos.permission.WRITE_USER_STORAGEor ohos.permission.READ_USER_STORAGE |
+| COMMON_EVENT_DISK_MOUNTED                                    | usual.event.data.DISK_MOUNTED                               | ohos.permission.WRITE_USER_STORAGEor ohos.permission.READ_USER_STORAGE |
+| COMMON_EVENT_DISK_BAD_REMOVAL                                | usual.event.data.DISK_BAD_REMOVAL                           | ohos.permission.WRITE_USER_STORAGEor ohos.permission.READ_USER_STORAGE |
+| COMMON_EVENT_DISK_EJECT                                      | usual.event.data.DISK_EJECT                                 | ohos.permission.WRITE_USER_STORAGEor ohos.permission.READ_USER_STORAGE |
+| COMMON_EVENT_AIRPLANE_MODE_CHANGED                           | usual.event.AIRPLANE_MODE                                   | N/A|
+
+## Modules to Import
+
+```js
+import CommonEvent from '@ohos.commonevent';
+```
+
+
+
+## CommonEvent.publish(event: string, callback: AsyncCallback\<void>): void
+
+- Functionality
+
+  Publishes a common event. This method uses a callback to return the result.
+
+* Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | -------------------- | ---- | -------------------- |
+  | event    | Read-only| string               | Yes| Name of the common event to publish.|
+  | callback | Read-only| AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+* Example
+
+```js
+// Callback for common event publication
+function PublishCallBack(err) {
+	console.info("==========================>PublishCallBack=======================>");
+    console.info("==========================>err:=======================>", err.code);
+}
+// Publish a common event.
+CommonEvent.publish("publish_event", PublishCallBack);
+```
+
+
+
+## CommonEvent.publish(event: string, options: CommonEventPublishData, callback: AsyncCallback\<void>): void
+
+- Functionality
+
+  Publishes a common event with given attributes. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | ---------------------- | ---- | ---------------------- |
+  | event    | Read-only| string                 | Yes| Name of the common event to publish.|
+  | options  | Read-only| [CommonEventPublishData](#publishData) | Yes| Attributes of the common event to publish.|
+  | callback | Read-only| AsyncCallback\<void>   | Yes| Callback used to return the result.|
+
+- Example
+
+
+```js
+// Attributes of a common event.
+var options = {
+	code: 0;			 // Result code of the common event
+	data: "initial data";// Result data of the common event
+	isOrdered: true;	 // The common event is an ordered one.
+}
+// Callback for common event publication
+function PublishCallBack(err) {
+	console.info("==========================>PublishCallBack=======================>");
+}
+// Publish a common event.
+CommonEvent.publish("publish_event", options, PublishCallBack);
+```
+
+
+
+## CommonEvent.createSubscriber(subscribeInfo: CommonEventSubscribeInfo, callback: AsyncCallback\<CommonEventSubscriber>): void
+
+- Functionality
+
+  Creates a subscriber. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------- | -------- | ---------------------------------------------------- | ---- | ------------------------ |
+  | subscribeInfo | Read-only| [CommonEventSubscribeInfo](#SubscribeInfo)           | Yes| Subscriber information.|
+  | callback      | Read-only| AsyncCallback\<[CommonEventSubscriber](#Subscriber)> | Yes| Callback used to return the result.|
+
+- Example
+
+
+```js
+var subscriber; // Used to save the created subscriber object for subsequent subscription and unsubscription.
+// Subscriber information
+var subscribeInfo = {
+	events: ["event"]
+};
+// Callback for subscriber creation
+function CreateSubscriberCallBack(err, data) {
+    console.info("==========================>CreateSubscriberCallBack=======================>");
+    subscriber = data;
+}
+// Create a subscriber.
+CommonEvent.createSubscriber(subscribeInfo, CreateSubscriberCallBack);
+```
+
+
+
+## CommonEvent.createSubscriber(subscribeInfo: CommonEventSubscribeInfo): Promise\<CommonEventSubscriber>
+
+- Functionality
+
+  Creates a subscriber. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------- | -------- | ------------------------------------------ | ---- | ------------ |
+  | subscribeInfo | Read-only| [CommonEventSubscribeInfo](#SubscribeInfo) | Yes| Subscriber information.|
+
+- Return values
+
+  Promise\<[CommonEventSubscriber](#Subscriber)>
+  
+  Returns a subscriber object.
+  
+- Example
+
+```js
+var subscriber; // Used to save the created subscriber object for subsequent subscription and unsubscription.
+// Subscriber information
+var subscribeInfo = {
+	events: ["event"]
+};
+// Create a subscriber.
+CommonEvent.createSubscriber(subscribeInfo).then((data) => {
+	console.info("==========================>createSubscriberPromise=======================>");
+    subscriber = data;
+});
+```
+
+
+
+## CommonEvent.subscribe(subscriber: CommonEventSubscriber, callback: AsyncCallback\<CommonEventData>): void
+
+- Functionality
+
+  Subscribes to common events. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---------- | -------- | --------------------------------------------------- | ---- | ------------------------------ |
+  | subscriber | Read-only| [CommonEventSubscriber](#Subscriber)                | Yes| Subscriber object.|
+  | callback   | Read-only| AsyncCallback\<[CommonEventData](#CommonEventData)> | Yes| Callback used to return the result.|
+
+- Example
+
+  Unordered common event:
+  
+
+```js
+var subscriber; // Used to save the created subscriber object for subsequent subscription and unsubscription.
+// Subscriber information
+var subscribeInfo = {
+    events: ["event"]
+};
+// Callback for common event subscription
+function SubscribeCallBack(err, data) {
+    console.info("==========================>SubscribeCallBack=======================>");
+}
+// Callback for subscriber creation
+function CreateSubscriberCallBack(err, data) {
+    console.info("==========================>CreateSubscriberCallBack=======================>");
+    subscriber = data;
+    // Subscribe to a common event.
+    CommonEvent.subscribe(subscriber, SubscribeCallBack);
+}
+// Create a subscriber.
+CommonEvent.createSubscriber(subscribeInfo, CreateSubscriberCallBack);
+```
+
+​    Ordered common event:
+
+```js
+var subscriber; // Used to save the created subscriber object for subsequent subscription and unsubscription.
+// Subscriber information
+var subscribeInfo = {
+    events: ["event"]
+};
+
+// Callback for result code setting of an ordered common event
+function SetCodeCallBack(err) {
+    console.info("==========================>SetCodeCallBack=======================>");
+}
+// Callback for result data setting of an ordered common event
+function SetDataCallBack(err) {
+    console.info("==========================>SetDataCallBack=======================>");
+}
+// Callback for ordered common event processing
+function FinishCommonEventCallBack(err) {
+    console.info("==========================>FinishCommonEventCallBack=======================>");
+}
+// Callback for common event subscription
+function SubscribeCallBack(err, data) {
+    console.info("==========================>SubscribeCallBack=======================>");
+    // Set the result code for the ordered common event.
+    subscriber.setCode(0, SetCodeCallBack);
+    // Set the result data for the ordered common event.
+    subscriber.setData("publish_data_changed", SetDataCallBack);
+    // Complete the processing of the ordered common event.
+    subscriber.finishCommonEvent(FinishCommonEventCallBack)
+}
+
+// Callback for subscriber creation
+function CreateSubscriberCallBack(err, data) {
+    console.info("==========================>CreateSubscriberCallBack=======================>");
+    subscriber = data;
+    // Subscribe to a common event.
+    CommonEvent.subscribe(subscriber, SubscribeCallBack);
+}
+
+// Create a subscriber.
+CommonEvent.createSubscriber(subscribeInfo, CreateSubscriberCallBack);
+```
+
+​    
+
+## CommonEvent.unsubscribe(subscriber: CommonEventSubscriber, callback?: AsyncCallback\<void>): void
+
+- Functionality
+
+  Unsubscribes from common events. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---------- | -------- | --------------------- | ---- | ---------------------- |
+  | subscriber | Read-only| CommonEventSubscriber | Yes| Subscriber object.|
+  | callback   | Read-only| AsyncCallback\<void>  | Yes| Callback used to return the result.|
+
+- Example
+
+```js
+var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+// Subscriber information
+var subscribeInfo = {
+	events: ["event"]
+};
+// Callback for common event subscription
+function SubscribeCallBack(err, data) {
+	console.info("==========================>SubscribeCallBack=======================>");
+}
+// Callback for subscriber creation
+function CreateSubscriberCallBack(err, data) {
+	console.info("==========================>CreateSubscriberCallBack=======================>");
+	subscriber = data;
+	// Subscribe to a common event.
+	CommonEvent.subscribe(subscriber, SubscribeCallBack);
+}
+// Callback for common event unsubscription
+function UnsubscribeCallBack(err) {
+	console.info("==========================>UnsubscribeCallBack=======================>");
+}
+// Create a subscriber.
+CommonEvent.createSubscriber(subscribeInfo, CreateSubscriberCallBack);
+// Unsubscribe from the common event.
+CommonEvent.unsubscribe(subscriber, UnsubscribeCallBack);
+```
+
+## <span id = "publishData">CommonEventPublishData</span>
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------------------- | -------- | -------------------- | ---- | ---------------------------- |
+| bundleName            | Read-only| string               | No| Bundle name.|
+| code                  | Read-only| number               | No| Result code of the common event.|
+| data                  | Read-only| string               | No| Custom result data of the common event.|
+| subscriberPermissions | Read-only| Array\<string>       | No| Permissions required for subscribers to receive the common event.|
+| isOrdered             | Read-only| boolean              | No| Whether the common event is an ordered one.|
+| parameters            | Read-only| {[key: string]: any} | No| Additional information about the common event.|
+
+## <span id = "SubscribeInfo">CommonEventSubscribeInfo</span>
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------------------- | -------- | -------------- | ---- | ------------------------------------------------------------ |
+| events              | Read-only| Array\<string> | Yes| Common events to subscribe to.|
+| publisherPermission | Read-only| string         | No| Permission required for the publisher.|
+| publisherDeviceId   | Read-only| string         | No| Device ID. The value must be the ID of an existing device on the same network.|
+| userId              | Read-only| number         | No| User ID. The default value is the ID of the current user. If this parameter is specified, the value must be an existing user ID in the system.|
+| priority            | Read-only| number         | No| Subscriber priority. The value ranges from -100 to 1000.|
+
+## <span id = "CommonEventData">CommonEventData</span>
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | -------------------- | ---- | ------------------------------------------------------ |
+| event      | Read-only| string               | Yes| Name of the common event to subscribe to.|
+| bundleName | Read-only| string               | No| Bundle name.|
+| code       | Read-only| number               | No| Result code of the common event, which is used to transfer data of the int type.|
+| data       | Read-only| string               | No| Custom result data of the common event, which is used to transfer data of the string type.|
+| parameters | Read-only| {[key: string]: any} | No| Additional information about the common event.|
+
+## <span id = "Subscriber">CommonEventSubscriber</span>
+
+### getCode (callback)
+
+- Functionality
+
+  Obtains the result code of this common event. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ---------------------- | ---- | ------------------ |
+  | callback | AsyncCallback\<number> | Yes| Callback used to return the result code.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function getCodeCallback(err, data) {
+      console.info("==========================>getCodeCallback=======================>");
+      console.info("==========================>err:=======================>", err.code);
+      console.info("==========================>code:=======================>", data);
+  }
+  subscriber.getCode(getCodeCallback);
+  ```
+
+### getCode (promise)
+
+- Functionality
+
+  Obtains the result code of this common event. This method uses a promise to return the result.
+
+- Return values
+
+  | Type| Description|
+  | ---------------- | ------------------ |
+  | Promise\<number> | A promise used to return the result code.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.getCode().then((data) => {
+  	console.info("==========================>getCodePromise=======================>");
+      console.info("==========================>code:=======================>", data);
+  });
+  ```
+
+### setCode (callback)
+
+- Functionality
+
+  Sets the result code for this common event. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | -------------------- | ---- | -------------------- |
+  | code     | number               | Yes| Result code of the common event.|
+  | callback | AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function setCodeCallback(err) {
+      console.info("==========================>setCodeCallback=======================>");
+      console.info("==========================>err:=======================>", err.code);
+  }
+  subscriber.setCode(1, setCodeCallback);
+  ```
+
+### setCode (promise)
+
+- Functionality
+
+  Sets the result code for this common event. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | ------------------ |
+  | code   | number | Yes| Result code of the common event.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.setCode(1).then(() => {
+  	console.info("==========================>setCodePromise=======================>");
+  });
+  ```
+
+### getData (callback)
+
+- Functionality
+
+  Obtains the result data of this common event. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ---------------------- | ---- | ------------------ |
+  | callback | AsyncCallback\<string> | Yes| Callback used to return the result data.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function getDataCallback(err, data) {
+      console.info("==========================>getDataCallback=======================>");
+      console.info("==========================>err:=======================>", err.code);
+      console.info("==========================>data:=======================>", data);
+  }
+  subscriber.getData(getDataCallback);
+  ```
+
+### getData (promise)
+
+- Functionality
+
+  Obtains the result data of this common event. This method uses a promise to return the result.
+
+- Return values
+
+  | Type| Description|
+  | ---------------- | ------------------ |
+  | Promise\<string> | A promise used to return the result data.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.getData().then((data) => {
+  	console.info("==========================>getDataPromise=======================>");
+      console.info("==========================>data:=======================>", data);
+  });
+  ```
+
+### setData (callback)
+
+- Functionality
+
+  Sets the result data for this common event. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | -------------------- | ---- | -------------------- |
+  | data     | string               | Yes| Result data of the common event.|
+  | callback | AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function setDataCallback(err) {
+      console.info("==========================>setDataCallback=======================>");
+      console.info("==========================>err:=======================>", err.code);
+  }
+  subscriber.setData("publish_data_changed", setDataCallback);
+  ```
+
+### setData (promise)
+
+- Functionality
+
+  Sets the result data for this common event. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | ------------------ |
+  | data   | string | Yes| Result data of the common event.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.setData("publish_data_changed").then(() => {
+  	console.info("==========================>setDataPromise=======================>");
+  });
+  ```
+
+### setCodeAndData (callback)
+
+- Functionality
+
+  Sets the result code and result data for this common event. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | -------------------- | ---- | -------------------- |
+  | code     | number               | Yes| Result code of the common event.|
+  | data     | string               | Yes| Result data of the common event.|
+  | callback | AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function setCodeDataCallback(err) {
+      console.info("==========================>setCodeDataCallback=======================>");
+      console.info("==========================>err:=======================>", err.code);
+  }
+  subscriber.setCodeAndData(1, "publish_data_changed", setCodeDataCallback);
+  ```
+
+### setCodeAndData (promise)
+
+- Functionality
+
+  Sets the result code and result data for this common event. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | ------ | ------ | ---- | ------------------ |
+  | code   | number | Yes| Result code of the common event.|
+  | data   | string | Yes| Result data of the common event.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.setCodeAndData(1, "publish_data_changed").then(() => {
+  	console.info("==========================>setCodeAndData=======================>");
+  });
+  ```
+
+### isOrderedCommonEvent (callback)
+
+- Functionality
+
+  Checks whether this common event is an ordered one. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ----------------------- | ---- | -------------------------------- |
+  | callback | AsyncCallback\<boolean> | Yes| Returns **true** if the common event is an ordered one; returns **false** otherwise.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function isOrderedCallback(err, data) {
+      console.info("==========================>isOrderedCallback=======================>");
+      console.info("==========================>err:=======================>", err.code);
+      console.info("==========================>isOrdered:=======================>", data);
+  }
+  subscriber.isOrderedCommonEvent(isOrderedCallback);
+  ```
+
+### isOrderedCommonEvent (promise)
+
+- Functionality
+
+  Checks whether this common event is an ordered one. This method uses a promise to return the result.
+
+- Return values
+
+  | Type| Description|
+  | ----------------- | -------------------------------- |
+  | Promise\<boolean> | Returns **true** if the common event is an ordered one; returns **false** otherwise.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.isOrderedCommonEvent().then((data) => {
+  	console.info("==========================>isOrdered:=======================>", data);
+  });
+  ```
+
+### abortCommonEvent (callback)
+
+- Functionality
+
+  Aborts this common event. After the abort, the common event is not sent to the next subscriber. This method takes effect only for ordered common events. It uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ----------------------- | ---- | ------------------ |
+  | callback | AsyncCallback\<boolean> | Yes| Callback used to return the result.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function abortCallback(err) {
+      console.info("==========================>abortCallback=======================>");
+   	console.info("==========================>err:=======================>", err.code);
+  }
+  subscriber.abortCommonEvent(abortCallback);
+  ```
+
+### abortCommonEvent (promise)
+
+- Functionality
+
+  Aborts this common event. After the abort, the common event is not sent to the next subscriber. This method takes effect only for ordered common events. It uses a promise to return the result.
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.abortCommonEvent().then(() => {
+  	console.info("==========================>abortCommonEvent:=======================>");
+  });
+  ```
+
+### clearAbortCommonEvent (callback)
+
+- Functionality
+
+  Clears the aborted state of this common event. This method takes effect only for ordered common events. It uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | -------------------- | ---- | -------------------- |
+  | callback | AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function clearAbortCallback(err) {
+      console.info("==========================>clearAbortCallback=======================>");
+   	console.info("==========================>err:=======================>", err.code);
+  }
+  subscriber.clearAbortCommonEvent(clearAbortCallback);
+  ```
+
+### clearAbortCommonEvent (promise)
+
+- Functionality
+
+  Clears the aborted state of this common event. This method takes effect only for ordered common events. It uses a promise to return the result.
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.clearAbortCommonEvent().then(() => {
+  	console.info("==========================>clearAbortCommonEvent:=======================>");
+  });
+  ```
+
+### getAbortCommonEvent (callback)
+
+- Functionality
+
+  Checks whether this common event is in the aborted state. This method takes effect only for ordered common events. It uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ----------------------- | ---- | ---------------------------------- |
+  | callback | AsyncCallback\<boolean> | Yes| Returns **true** if the ordered common event is in the aborted state; returns **false** otherwise.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function getAbortCallback(err, data) {
+      console.info("==========================>getAbortCallback=======================>");
+   	console.info("==========================>err:=======================>", err.code);
+      console.info("==========================>abort:=======================>", data);
+  }
+  subscriber.getAbortCommonEvent(getAbortCallback);
+  ```
+
+### getAbortCommonEvent (promise)
+
+- Functionality
+
+  Checks whether this common event is in the aborted state. This method takes effect only for ordered common events. It uses a promise to return the result.
+
+- Return values
+
+  | Type| Description|
+  | ----------------- | ---------------------------------- |
+  | Promise\<boolean> | Returns **true** if the ordered common event is in the aborted state; returns **false** otherwise.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.getAbortCommonEvent().then((data) => {
+  	console.info("==========================>getAbortCommonEvent:=======================>");
+      console.info("==========================>abort:=======================>", data);
+  });
+  ```
+
+### getSubscribeInfo (callback)
+
+- Functionality
+
+  Obtains the subscriber information. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Type| Mandatory| Description|
+  | -------- | ---------------------------------------- | ---- | -------------------- |
+  | callback | AsyncCallback\<CommonEventSubscribeInfo> | Yes| Callback used to return the subscriber information.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  // Callback for result data setting of an ordered common event
+  function getSubscribeInfoCallback(err, data) {
+      console.info("==========================>getSubscribeInfoCallback=======================>");
+   	console.info("==========================>err:=======================>", err.code);
+      console.info("==========================>priority:=======================>", data.priority);
+  }
+  subscriber.getSubscribeInfo(getSubscribeInfoCallback);
+  ```
+
+### getSubscribeInfo (promise)
+
+- Functionality
+
+  Obtains the subscriber information. This method uses a promise to return the result.
+
+- Return values
+
+  | Type| Description|
+  | ---------------------------------- | -------------------- |
+  | Promise\<CommonEventSubscribeInfo> | A promise used to return the subscriber information.|
+
+- Example
+
+  ```js
+  var subscriber;	// Used to save the created subscriber object for subsequent subscription and unsubscription.
+  subscriber.getSubscribeInfo().then((data) => {
+  	console.info("==========================>getSubscribeInfo:=======================>");
+      console.info("==========================>priority:=======================>", data.priority);
+  });
+  ```

en/application-dev/reference/apis/js-apis-dataAbilityHelper.md

+### DataAbilityHelper Module (JavaScript SDK APIs)
+
+#### Applicable Devices
+
+| API                                                          | Phone| Tablet| Smart TV| Wearable| Lite Wearable| SmartVision Device|
+| ------------------------------------------------------------ | ---- | ---- | ------ | -------- | -------------- | ------------ |
+| DataAbilityHelper.openFile(uri: string, mode: string, callback: AsyncCallback\<number>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.openFile(uri: string, mode: string)        | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.on(type: 'dataChange', uri: string, callback: AsyncCallback\<void>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.off(type: 'dataChange', uri: string, callback?: AsyncCallback\<void>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.getFileTypes(uri: string, mimeTypeFilter: string, callback: AsyncCallback<Array\<string>>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.getFileTypes(uri: string, mimeTypeFilter: string) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.getType(uri: string, callback: AsyncCallback\<string>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.getType(uri: string)                       | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.normalizeUri(uri: string, callback: AsyncCallback\<string>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.normalizeUri(uri: string)                  | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.denormalizeUri(uri: string, callback: AsyncCallback\<string>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.denormalizeUri(uri: string)                | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.notifyChange(uri: string, callback: AsyncCallback\<void>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.notifyChange(uri: string)                  | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.insert(uri: string, valuesBucket: rdb.ValuesBucket, callback: AsyncCallback\<number>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.insert(uri: string, valuesBucket: rdb.ValuesBucket) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.batchInsert(uri: string, valuesBuckets: Array<rdb.ValuesBucket>, callback: AsyncCallback\<number>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.batchInsert(uri: string, valuesBuckets: Array<rdb.ValuesBucket>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.delete(uri: string, predicates: dataAbility.DataAbilityPredicates, callback: AsyncCallback\<number>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.delete(uri: string, predicates: dataAbility.DataAbilityPredicates) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.update(uri: string, valuesBucket: rdb.ValuesBucket, predicates: dataAbility.DataAbilityPredicates, callback: AsyncCallback\<number>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.update(uri: string, valuesBucket: rdb.ValuesBucket, predicates: dataAbility.DataAbilityPredicates) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.query(uri: string, columns: Array\<string>, predicates: dataAbility.DataAbilityPredicates, callback: AsyncCallback\<ResultSet>) | Yes| Yes| Yes| Yes| No| No|
+| DataAbilityHelper.query(uri: string, columns: Array\<string>, predicates: dataAbility.DataAbilityPredicates) | Yes| Yes| Yes| Yes| No| No|
+
+#### Modules to Import
+
+```
+import featureAbility from '@ohos.ability.featureAbility'
+import ohos_data_ability from '@ohos.data.dataability'
+import ohos_data_rdb from '@ohos.data.rdb'
+```
+
+#### DataAbilityHelper.openFile(uri: string, mode: string, callback: AsyncCallback\<number>)
+
+- Functionality
+
+  Opens a file with a specified URI. This method uses a callback to return the result.
+
+
+* Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | -------------------- | ---- | ------------------------ |
+  | uri      | Read-only| string               | Yes| URI of the file to open.|
+  | mode     | Read-only| string               | Yes| Mode for opening the file. The value can be **rwt**.|
+  | callback | Read-only| AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+* Return values
+
+  Returns a file descriptor.
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+var mode = "rwt";
+DAHelper.openFile(
+    "dataability:///com.example.DataAbility",
+    mode,
+    (err) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.openFile(uri: string, mode: string)
+
+- Functionality
+
+  Opens a file with a specified URI. This method uses a promise to return the result.
+
+* Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---- | -------- | ------ | ---- | ------------------------ |
+  | uri  | Read-only| string | Yes| URI of the file to open.|
+  | mode | Read-only| string | Yes| Mode for opening the file. The value can be **rwt**.|
+
+* Return values
+
+  Returns a file descriptor.
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+var mode = "rwt";
+DAHelper.openFile(
+    "dataability:///com.example.DataAbility",
+    mode).then((void) => {
+		console.info("==========================>openFileCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.on(type: 'dataChange', uri: string, callback: AsyncCallback\<void>)
+
+- Functionality
+
+  Registers an observer to observe data specified by a given URI. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | -------------------- | ---- | ------------------------ |
+  | type     | Read-only| string               | Yes| Type of the event to observe. The value is **dataChange**.|
+  | uri      | Read-only| string               | Yes| URI of the data.|
+  | callback | Read-only| AsyncCallback\<void> | Yes| Callback invoked when the data is changed.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var helper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+function onChangeNotify() {
+    console.info("==========================>onChangeNotify=======================>");
+};
+helper.on(
+    "dataChange",
+    "dataability:///com.example.DataAbility",
+    onChangeNotify
+)
+```
+
+#### DataAbilityHelper.off(type: 'dataChange', uri: string, callback?: AsyncCallback\<void>)
+
+- Functionality
+
+  Unregisters the observer used to observe data specified by a given URI. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | -------------------- | ---- | ------------------------ |
+  | type     | Read-only| string               | Yes| Type of the event to observe. The value is **dataChange**.|
+  | uri      | Read-only| string               | Yes| URI of the data.|
+  | callback | Read-only| AsyncCallback\<void> | No| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var helper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+function onChangeNotify() {
+    console.info("==========================>onChangeNotify=======================>");
+};
+helper.off(
+    "dataChange",
+    "dataability:///com.example.DataAbility",
+)
+helper.off(
+    "dataChange",
+    "dataability:///com.example.DataAbility",
+    onChangeNotify
+)
+```
+
+#### DataAbilityHelper.getType(uri: string, callback: AsyncCallback\<string>)
+
+- Functionality
+
+  Obtains the MIME type of the data specified by a given URI. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | ---------------------- | ---- | ------------------------ |
+  | uri      | Read-only| string                 | Yes| URI of the data.|
+  | callback | Read-only| AsyncCallback\<string> | Yes| Callback used to return the result.|
+
+- Return value
+
+  Returns the MIME type that matches the data specified by the URI.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+DAHelper.getType(
+    "dataability:///com.example.DataAbility",
+    (err, data) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.getType(uri: string)
+
+- Functionality
+
+  Obtains the MIME type of the data specified by a given URI. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---- | -------- | ------ | ---- | ------------------------ |
+  | uri  | Read-only| string | Yes| URI of the data.|
+
+- Return value
+
+  Returns the MIME type that matches the data specified by the URI.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+DAHelper.getType(
+    "dataability:///com.example.DataAbility"
+	).then((data) => {
+		console.info("==========================>getTypeCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.getFileTypes(uri: string, mimeTypeFilter: string, callback: AsyncCallback<Array\<string>>)
+
+- Functionality
+
+  Obtains the supported MIME types of a specified file. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------------- | -------- | ------------------------------ | ---- | ---------------------------- |
+  | uri            | Read-only| string                         | Yes| URI of the file.|
+  | mimeTypeFilter | Read-only| string                         | Yes| MIME type of the file.|
+  | callback       | Read-only| AsyncCallback\<Array\<string>> | Yes| Callback used to return the result.|
+
+- Return value
+
+  Returns a MIME type array.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+DAHelper.getFileTypes(
+    "dataability:///com.example.DataAbility",
+    "image/*",
+    (err, data) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.getFileTypes(uri: string, mimeTypeFilter: string)
+
+- Functionality
+
+  Obtains the supported MIME types of a specified file. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------------- | -------- | ------ | ---- | ---------------------------- |
+  | uri            | Read-only| string | Yes| URI of the file.|
+  | mimeTypeFilter | Read-only| string | Yes| MIME type of the file.|
+
+- Return value
+
+  Returns a MIME type array.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+DAHelper.getFileTypes(
+    "dataability:///com.example.DataAbility",
+    "image/*"
+	).then((data) => {
+		console.info("==========================>getFileTypesCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.normalizeUri(uri: string, callback: AsyncCallback\<string>)
+
+- Functionality
+
+  Converts the URI that refers to a Data ability into a normalized URI. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | ---------------------- | ---- | ----------------------- |
+  | uri      | Read-only| string                 | Yes| URI object to normalize.|
+  | callback | Read-only| AsyncCallback\<string> | Yes| Callback used to return the result.|
+
+- Return value
+
+  Returns the normalized URI object if the Data ability supports URI normalization; returns **null** otherwise.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+DAHelper.normalizeUri(
+    "dataability:///com.example.DataAbility",
+    (err, data) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.normalizeUri(uri: string)
+
+- Functionality
+
+  Converts the URI that refers to a Data ability into a normalized URI. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---- | -------- | ------ | ---- | ----------------------- |
+  | uri  | Read-only| string | Yes| URI object to normalize.|
+
+- Return value
+
+  Returns the normalized URI object if the Data ability supports URI normalization; returns **null** otherwise.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+DAHelper.normalizeUri(
+    "dataability:///com.example.DataAbility",
+	).then((data) => {
+		console.info("==========================>normalizeUriCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.denormalizeUri(uri: string, callback: AsyncCallback\<string>)
+
+- Functionality
+
+  Converts a normalized URI generated by **DataAbilityHelper.normalizeUri(uri: string, callback: AsyncCallback\<string>)** to a denormalized one. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | ---------------------- | ---- | ----------------------- |
+  | uri      | Read-only| string                 | Yes| URI object to denormalize.|
+  | callback | Read-only| AsyncCallback\<string> | Yes| Callback used to return the result.|
+
+- Return value
+
+  Returns the denormalized URI object.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+DAHelper.denormalizeUri(
+    "dataability:///com.example.DataAbility",,
+    (err, data) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.denormalizeUri(uri: string)
+
+- Functionality
+
+  Converts a normalized URI generated by **DataAbilityHelper.normalizeUri(uri: string)** to a denormalized one. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---- | -------- | ------ | ---- | ----------------------- |
+  | uri  | Read-only| string | Yes| URI object to denormalize.|
+
+- Return value
+
+  Returns the denormalized URI object.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+DAHelper.denormalizeUri(
+    "dataability:///com.example.DataAbility",
+	).then((data) => {
+		console.info("==========================>denormalizeUriCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.notifyChange(uri: string, callback: AsyncCallback\<void>)
+
+- Functionality
+
+  Notifies the registered observer of a change to the data specified by the URI. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | -------- | -------- | -------------------- | ---- | ------------------------ |
+  | uri      | Read-only| string               | Yes| URI of the data.|
+  | callback | Read-only| AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var helper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+helper.notifyChange(
+    "dataability:///com.example.DataAbility",,
+    (err) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.notifyChange(uri: string)
+
+- Functionality
+
+  Notifies the registered observer of a change to the data specified by the URI. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---- | -------- | ------ | ---- | ------------------------ |
+  | uri  | Read-only| string | Yes| URI of the data.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+DAHelper.notifyChange(
+    "dataability:///com.example.DataAbility",
+	).then((void) => {
+		console.info("==========================>notifyChangeCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.insert(uri: string, valuesBucket: rdb.ValuesBucket, callback: AsyncCallback\<number>)
+
+- Functionality
+
+  Inserts a single data record into the database. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------ | -------- | ---------------------- | ---- | ------------------------------------------------------ |
+  | uri          | Read-only| string                 | Yes| URI of the data to insert.|
+  | valuesBucket | Read-only| rdb.ValuesBucket       | Yes| Data record to insert. If this parameter is **null**, a blank row will be inserted.|
+  | callback     | Read-only| AsyncCallback\<number> | Yes| Callback used to return the result.|
+
+- Return value
+
+  Returns the index of the inserted data record.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+const valueBucket = {
+    "name": "rose",
+    "age": 22,
+    "salary": 200.5,
+    "blobType": u8,
+}
+DAHelper.insert(
+    "dataability:///com.example.DataAbility",
+    valueBucket,
+    (err, data) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.insert(uri: string, valuesBucket: rdb.ValuesBucket)
+
+- Functionality
+
+  Inserts a single data record into the database. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------ | -------- | ---------------- | ---- | ------------------------------------------------------ |
+  | uri          | Read-only| string           | Yes| URI of the data to insert.|
+  | valuesBucket | Read-only| rdb.ValuesBucket | Yes| Data record to insert. If this parameter is **null**, a blank row will be inserted.|
+
+- Return value
+
+  Returns the index of the inserted data record.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+const valueBucket = {
+    "name": "rose1",
+    "age": 221,
+    "salary": 20.5,
+    "blobType": u8,
+}
+DAHelper.insert(
+    "dataability:///com.example.DataAbility",
+    valueBucket
+	).then((data) => {
+		console.info("==========================>insertCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.batchInsert(uri: string, valuesBuckets: Array<rdb.ValuesBucket>, callback: AsyncCallback\<number>)
+
+- Functionality
+
+  Inserts multiple data records into the database. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------ | -------- | ----------------------- | ---- | ------------------------ |
+  | uri          | Read-only| string                  | Yes| URI of the data to insert.|
+  | valuesBucket | Read-only| Array<rdb.ValuesBucket> | Yes| Data records to insert.|
+  | callback     | Read-only| AsyncCallback\<number>  | Yes| Callback used to return the result.|
+
+- Return value
+
+  Returns the number of inserted data records.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+var cars = new Array({"name": "roe11", "age": 21, "salary": 20.5, "blobType": u8,},
+                     {"name": "roe12", "age": 21, "salary": 20.5, "blobType": u8,},
+                     {"name": "roe13", "age": 21, "salary": 20.5, "blobType": u8,})
+DAHelper.batchInsert(
+    "dataability:///com.example.DataAbility",
+    cars,
+    (err, data) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.batchInsert(uri: string, valuesBuckets: Array<rdb.ValuesBucket>)
+
+- Functionality
+
+  Inserts multiple data records into the database. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------ | -------- | ----------------------- | ---- | ------------------------ |
+  | uri          | Read-only| string                  | Yes| URI of the data to insert.|
+  | valuesBucket | Read-only| Array<rdb.ValuesBucket> | Yes| Data records to insert.|
+
+- Return value
+
+  Returns the number of inserted data records.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+var cars = new Array({"name": "roe11", "age": 21, "salary": 20.5, "blobType": u8,},
+                     {"name": "roe12", "age": 21, "salary": 20.5, "blobType": u8,},
+                     {"name": "roe13", "age": 21, "salary": 20.5, "blobType": u8,})
+DAHelper.batchInsert(
+    "dataability:///com.example.DataAbility",
+    cars
+	).then((data) => {
+		console.info("==========================>batchInsertCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.delete(uri: string, predicates: dataAbility.DataAbilityPredicates, callback: AsyncCallback\<number>)
+
+- Functionality
+
+  Deletes one or more data records from the database. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------ | -------- | --------------------------------- | ---- | ------------------------------------------------ |
+  | uri          | Read-only| string                            | Yes| URI of the data to delete.|
+  | valuesBucket | Read-only| dataAbility.DataAbilityPredicates | Yes| Filter criteria. You should define the processing logic when this parameter is **null**.|
+  | callback     | Read-only| AsyncCallback\<number>            | Yes| Callback used to return the result.|
+
+- Return value
+
+  Returns the number of deleted data records.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+import ohos_data_ability from '@ohos.data.dataability'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+let da = new ohos_data_ability.DataAbilityPredicates()
+DAHelper.delete(
+    "dataability:///com.example.DataAbility",
+    da,
+    (err, data) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.delete(uri: string, predicates: dataAbility.DataAbilityPredicates)
+
+- Functionality
+
+  Deletes one or more data records from the database. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------ | -------- | --------------------------------- | ---- | ------------------------------------------------ |
+  | uri          | Read-only| string                            | Yes| URI of the data to delete.|
+  | valuesBucket | Read-only| dataAbility.DataAbilityPredicates | Yes| Filter criteria. You should define the processing logic when this parameter is **null**.|
+
+- Return value
+
+  Returns the number of deleted data records.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+let da = new ohos_data_ability.DataAbilityPredicates()
+DAHelper.delete(
+    "dataability:///com.example.DataAbility",
+    da
+	).then((data) => {
+		console.info("==========================>deleteCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.update(uri: string, valuesBucket: rdb.ValuesBucket, predicates: dataAbility.DataAbilityPredicates, callback: AsyncCallback\<number>)
+
+- Functionality
+
+  Updates data records in the database. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------ | -------- | --------------------------------- | ---- | ------------------------------------------------ |
+  | uri          | Read-only| string                            | Yes| URI of the data to update.|
+  | valuesBucket | Read-only| rdb.ValuesBucket                  | Yes| New values.|
+  | predicates   | Read-only| dataAbility.DataAbilityPredicates | Yes| Filter criteria. You should define the processing logic when this parameter is **null**.|
+  | callback     | Read-only| AsyncCallback\<number>            | Yes| Callback used to return the result.|
+
+- Return value
+
+  Returns the number of updated data records.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+import ohos_data_ability from '@ohos.data.dataability'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+const va = {
+    "name": "roe1",
+    "age": 21,
+    "salary": 20.5,
+    "blobType": u8,
+}
+let da = new ohos_data_ability.DataAbilityPredicates()
+DAHelper.update(
+    "dataability:///com.example.DataAbility",
+    va,
+    da,
+    (err, data) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+#### DataAbilityHelper.update(uri: string, valuesBucket: rdb.ValuesBucket, predicates: dataAbility.DataAbilityPredicates)
+
+- Functionality
+
+  Updates data records in the database. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ------------ | -------- | --------------------------------- | ---- | ------------------------------------------------ |
+  | uri          | Read-only| string                            | Yes| URI of the data to update.|
+  | valuesBucket | Read-only| rdb.ValuesBucket                  | Yes| New values.|
+  | predicates   | Read-only| dataAbility.DataAbilityPredicates | Yes| Filter criteria. You should define the processing logic when this parameter is **null**.|
+
+- Return value
+
+  Returns the number of updated data records.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+import ohos_data_ability from '@ohos.data.dataability'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+const va = {
+    "name": "roe1",
+    "age": 21,
+    "salary": 20.5,
+    "blobType": u8,
+}
+let da = new ohos_data_ability.DataAbilityPredicates()
+DAHelper.update(
+    "dataability:///com.example.DataAbility",
+    va,
+    da
+	).then((data) => {
+		console.info("==========================>updateCallback=======================>");
+});
+```
+
+#### DataAbilityHelper.query(uri: string, columns: Array\<string>, predicates: dataAbility.DataAbilityPredicates, callback: AsyncCallback\<ResultSet>)
+
+- Functionality
+
+  Queries data in the database. This method uses a callback to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---------- | -------- | --------------------------------- | ---- | ------------------------------------------------ |
+  | uri        | Read-only| string                            | Yes| URI of the data to query.|
+  | columns    | Read-only| rdb.ValuesBucket                  | Yes| Columns to query. If this parameter is **null**, all columns will be queried.|
+  | predicates | Read-only| dataAbility.DataAbilityPredicates | Yes| Filter criteria. You should define the processing logic when this parameter is **null**.|
+  | callback   | Read-only| AsyncCallback\<ResultSet>         | Yes| Callback used to return the result.|
+
+- Return value
+
+  Returns the data queried.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+import ohos_data_ability from '@ohos.data.dataability'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+var cars=new Array({"value1"}, {"value2"}, {"value3"}, {"value4"});
+let da = new ohos_data_ability.DataAbilityPredicates()
+DAHelper.query(
+    "dataability:///com.example.DataAbility",
+    cars,
+    da,
+    (err, data) => {
+		console.info("==========================>Called=======================>");
+});
+```
+
+
+
+#### DataAbilityHelper.query(uri: string, columns: Array\<string>, predicates: dataAbility.DataAbilityPredicates)
+
+- Functionality
+
+  Queries data in the database. This method uses a promise to return the result.
+
+- Parameters
+
+  | Name| Readable/Writable| Type| Mandatory| Description|
+  | ---------- | -------- | --------------------------------- | ---- | ------------------------------------------------ |
+  | uri        | Readable and writable| string                            | Yes| URI of the data to query.|
+  | columns    | Readable and writable| rdb.ValuesBucket                  | Yes| Columns to query. If this parameter is **null**, all columns will be queried.|
+  | predicates | Readable and writable| dataAbility.DataAbilityPredicates | Yes| Filter criteria. You should define the processing logic when this parameter is **null**.|
+
+- Return value
+
+  Returns the data queried.
+
+- Example
+
+```js
+import featureAbility from '@ohos.ability.featureAbility'
+import ohos_data_ability from '@ohos.data.dataability'
+var DAHelper = featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.example.DataAbility"
+);
+var cars=new Array({"value1"}, {"value2"}, {"value3"}, {"value4"});
+let da = new ohos_data_ability.DataAbilityPredicates()
+DAHelper.query(
+    "dataability:///com.example.DataAbility",
+    cars,
+    da
+	).then((data) => {
+		console.info("==========================>queryCallback=======================>");
+});
+```

en/application-dev/reference/apis/js-apis-featureAbility.md

+# FeatureAbility Module (JavaScript)
+
+#### Applicable Devices
+
+| API                                                          | Phone| Tablet| Smart TV| Wearable| Lite Wearable| SmartVision Device|
+| ------------------------------------------------------------ | ---- | ---- | ------ | -------- | -------------- | ------------ |
+| FeatureAbility.startAbility(parameter: StartAbilityParameter, callback: AsyncCallback\<number>): void | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.startAbility(parameter: StartAbilityParameter): Promise\<number> | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.acquireDataAbilityHelper(uri: string): DataAbilityHelper | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.startAbilityForResult(parameter: StartAbilityParameter, callback: AsyncCallback\<AbilityResult>): void | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.startAbilityForResult(parameter: StartAbilityParameter): Promise\<AbilityResult> | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.terminateSelfWithResult(parameter: AbilityResult, callback: AsyncCallback\<void>): void | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.terminateSelfWithResult(parameter: AbilityResult): Promise\<void> | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.hasWindowFocus(callback: AsyncCallback\<boolean>): void | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.hasWindowFocus(): Promise\<boolean>           | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.getWant(callback: AsyncCallback\<Want>)       | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.getWant(): void                               | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.getContext(): Context                         | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.terminateSelf(callback: AsyncCallback\<void>): void | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.terminateSelf(): Promise\<void>               | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.connectAbility(request: Want, options:ConnectOptions): number | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.disconnectAbility(connection: number, callback:AsyncCallback\<void>): void | Yes| Yes| Yes| Yes| No| No|
+| FeatureAbility.disconnectAbility(connection: number): Promise\<void> | Yes| Yes| Yes| Yes| No| No|
+
+#### Constraints
+
+APIs of the **FeatureAbility** module can be called only by Page abilities.
+
+#### Modules to Import
+
+```
+import featureAbility from '@ohos.ability.featureAbility'
+```
+
+#### FeatureAbility.startAbility(parameter: StartAbilityParameter, callback: AsyncCallback\<number>): void
+
+* Functionality
+
+  Starts an ability. This method uses a callback to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | --------------------- | ---- | ------------------- |
+| parameter | Read-only| [StartAbilityParameter](#StartAbilityParameter)| Yes| Ability to start.|
+| callback  | Read-only| AsyncCallback\<number>         | Yes| Callback used to return the result.|
+
+
+- Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+featureAbility.startAbility(
+        {
+        want:
+        {
+            action: "",
+            entities: [""],
+            type: "",
+            flags: FLAG_AUTH_READ_URI_PERMISSION,
+            deviceId: "",
+            bundleName: "com.example.startability",
+            abilityName: "com.example.startability.MainAbility",
+            uri: ""
+        },
+    },
+  );
+)
+```
+
+
+
+#### FeatureAbility.startAbility(parameter: StartAbilityParameter): Promise\<number>
+
+* Functionality
+
+  Starts an ability. This method uses a promise to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | ------------------------------------------------------- | ---- | ------------------- |
+| parameter | Read-only| [StartAbilityParameter](#StartAbilityParameter)| Yes| Ability to start.|
+
+
+- Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+featureAbility.startAbility(
+    {
+        want:
+        {
+            action: "action.system.home",
+            entities: ["entity.system.home"],
+            type: "MIMETYPE",
+			flags: FLAG_AUTH_READ_URI_PERMISSION,
+            deviceId: deviceId,
+            bundleName: "com.example.startability",
+            abilityName: "com.example.startability.MainAbility",
+            uri: ""
+        },
+    }
+   ).then((void) => {
+	console.info("==========================>startAbility=======================>");
+});
+```
+
+
+
+#### FeatureAbility.acquireDataAbilityHelper(uri: string): DataAbilityHelper
+
+* Functionality
+
+  Obtains a **dataAbilityHelper**.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---- | -------- | ------ | ---- | ---------------------- |
+| uri  | Read-only| string | Yes| URI of the file to open.|
+
+* Return values
+
+| Type| Description|
+| ----------------- | ------------------------------------------ |
+| DataAbilityHelper | A utility class used to help other abilities access the Data ability.|
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+featureAbility.acquireDataAbilityHelper(
+    "dataability:///com.exmaple.DataAbility"
+)
+```
+
+
+
+#### FeatureAbility.startAbilityForResult(parameter: StartAbilityParameter, callback: AsyncCallback\<AbilityResult>): void
+
+* Functionality
+
+  Starts an ability. This method uses a callback to return the execution result when the ability is destroyed.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | ---------------------- | ---- | ------------------- |
+| parameter | Read-only| [StartAbilityParameter](#StartAbilityParameter)| Yes| Ability to start.|
+| callback  | Read-only| AsyncCallback\<[AbilityResult](#AbilityResult)>| Yes| Callback used to return the result.|
+
+* Return values
+
+  Returns [AbilityResult](#AbilityResult).
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+featureAbility.startAbilityForResult(
+   {
+        want:
+        {
+            action: "action.system.home",
+            entities: ["entity.system.home"],
+            type: "MIMETYPE",
+            flags: FLAG_AUTH_READ_URI_PERMISSION,
+            deviceId: "",
+            bundleName: "com.example.featureabilitytest",
+            abilityName: "com.example.featureabilitytest.MainAbility",
+            uri:""
+        },
+    },
+)
+```
+
+
+
+#### FeatureAbility.startAbilityForResult(parameter: StartAbilityParameter): Promise\<AbilityResult>
+
+* Functionality
+
+  Starts an ability. This method uses a promise to return the execution result when the ability is destroyed.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | ------------------------------------------------------- | ---- | ------------------- |
+| parameter | Read-only| [StartAbilityParameter](#StartAbilityParameter)| Yes| Ability to start.|
+
+* Return values
+
+  Returns [AbilityResult](#AbilityResult).
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+featureAbility.startAbilityForResult(
+    {
+        want:
+        {
+            action: "action.system.home",
+            entities: ["entity.system.home"],
+            type: "MIMETYPE",
+            flags: FLAG_AUTH_READ_URI_PERMISSION,
+            deviceId: "",
+            bundleName: "com.example.featureabilitytest",
+            abilityName: "com.example.featureabilitytest.MainAbility",
+            uri:"",
+            parameters:
+            {
+                mykey0: 1111,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "xxxxxxxxxxxxxxxxxxxxxx",
+                mykey4: [1, 15],
+                mykey5: [false, true, false],
+                mykey6: ["aaaaaa", "bbbbb", "ccccccccccc"],
+                mykey7: true,
+            },
+        },
+        requestCode: 2,
+    },
+).then((void) => {
+    console.info("==========================>startAbilityForResult=======================>");
+});
+```
+
+
+
+#### FeatureAbility.terminateSelfWithResult(parameter: AbilityResult, callback: AsyncCallback\<void>): void
+
+* Functionality
+
+  Destroys this Page ability, with the result code and data sent to the caller. This method uses a callback to return the result.
+
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | ------------- | ---- | ------------------- |
+| parameter | Read-only| [AbilityResult](#AbilityResult)| Yes| Ability to start.|
+| callback  | Read-only| AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+featureAbility.terminateSelfWithResult(
+    {
+        resultCode: 1,
+        want:
+        {
+            action: "action.system.home",
+            entities: ["entity.system.home"],
+            type: "MIMETYPE",
+            flags: FLAG_AUTH_READ_URI_PERMISSION,
+            deviceId: "",
+            bundleName: "com.example.featureabilitytest",
+            abilityName: "com.example.featureabilitytest.MainAbility",
+            uri:"",
+            parameters: {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [1, 15],
+                mykey5: [false, true, false],
+                mykey6: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey7: true,
+            }
+        },
+    },
+);
+```
+
+
+
+#### FeatureAbility.terminateSelfWithResult(parameter: AbilityResult): Promise\<void>
+
+* Functionality
+
+  Destroys this Page ability, with the result code and data sent to the caller. This method uses a promise to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | --------------------------------------- | ---- | ------------------- |
+| parameter | Read-only| [AbilityResult](#AbilityResult)| Yes| Ability to start.|
+
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+featureAbility.terminateSelfWithResult(
+    {
+        resultCode: 1,
+        want:
+        {
+            action: "action.system.home",
+            entities: ["entity.system.home"],
+            type: "MIMETYPE",
+            flags: FLAG_AUTH_READ_URI_PERMISSION,
+            deviceId: "",
+            bundleName: "com.example.featureabilitytest",
+            abilityName: "com.example.featureabilitytest.MainAbility",
+            uri:"",
+            parameters: {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [1, 15],
+                mykey5: [false, true, false],
+                mykey6: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey7: true,
+            }
+        },
+    }
+).then((void) => {
+    console.info("==========================>terminateSelfWithResult=======================>");
+});
+```
+
+
+
+#### FeatureAbility.hasWindowFocus(callback: AsyncCallback\<boolean>): void
+
+* Functionality
+
+  Checks whether the main window of this ability has the focus. This method uses a callback to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ----------------------- | ---- | ---------------- |
+| callback | Read-only| AsyncCallback\<boolean> | Yes| Callback used to return the result.|
+
+* Return values
+
+  Returns **true** if the main window of this ability has the focus; returns **false** otherwise.
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+featureAbility.hasWindowFocus()
+```
+
+
+
+#### FeatureAbility.hasWindowFocus(): Promise\<boolean>
+
+* Functionality
+
+  Checks whether the main window of this ability has the focus. This method uses a promise to return the result.
+
+* Parameters
+
+  None
+
+* Return values
+
+  Returns **true** if the main window of this ability has the focus; returns **false** otherwise.
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+featureAbility.hasWindowFocus().then((void) => {
+    console.info("==========================>hasWindowFocus=======================>");
+});
+```
+
+
+
+#### FeatureAbility.getWant(callback: AsyncCallback\<Want>)
+
+* Functionality
+
+  Obtains the **Want** object sent from this ability. This method uses a callback to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | -------------------- | ---- | ---------------- |
+| callback | Read-only| AsyncCallback\<Want> | Yes| Callback used to return the result.|
+
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+featureAbility.getWant()
+```
+
+
+
+#### FeatureAbility.getWant(): void
+
+* Functionality
+
+  Obtains the **Want** object sent from this ability. This method uses a promise to return the result.
+
+* Parameters
+
+  None
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+featureAbility.getWant().then((void) => {
+		console.info("==========================>getWantCallBack=======================>");
+});
+```
+
+
+
+#### FeatureAbility.getContext(): Context
+
+* Functionality
+
+  Obtains the application context.
+
+* Return values
+
+  Returns the application context.
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+var context = featureAbility.getContext()
+context.getBundleName()
+```
+
+
+
+#### FeatureAbility.terminateSelf(callback: AsyncCallback\<void>): void
+
+* Functionality
+
+  Destroys this Page ability, with the result code and data sent to the caller. This method uses a callback to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | -------------------- | ---- | ---------------- |
+| callback | Read-only| AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+featureAbility.terminateSelf()
+```
+
+
+
+#### FeatureAbility.terminateSelf(): Promise\<void>
+
+* Functionality
+
+  Destroys this Page ability, with the result code and data sent to the caller. This method uses a promise to return the result.
+
+* Parameters
+
+  None
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureability';
+featureAbility.terminateSelf().then((void) => {		    console.info("==========================>terminateSelfCallBack=======================>");
+});
+```
+
+#### FeatureAbility.connectAbility(request: Want, options:ConnectOptions): number
+
+* Functionality
+
+  Connects this ability to a specific Service ability. This method uses a callback to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------- | -------- | -------------- | ---- | -------------------------- |
+| request | Read-only| Want           | Yes| Service ability to connect.|
+| options | Read-only| ConnectOptions | Yes| Callback used to return the result.|
+
+* Want parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------------ | -------- | -------- | ---- | ----------------------------------                               |
+| deviceId     | Read-only| string   | No| Device ID of the Service ability to connect. The default value is the local device ID.|
+| bundleName   | Read-only| string   | Yes| Bundle name of the Service ability to connect.|
+| abilityName  | Read-only| string   | Yes| Class name of the Service ability to connect.|
+
+- ConnectOptions
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------------ | -------- | -------- | ---- | ---------------------------------- |
+| onConnect    | Read-only| function | Yes| Callback invoked when the connection is successful.|
+| onDisconnect | Read-only| function | Yes| Callback invoked when the connection fails.|
+| onFailed     | Read-only| function | Yes| Callback invoked when **connectAbility** fails to be called.|
+
+* Return values
+
+  Returns the ID of the Service ability connected.
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+function onConnectCallback(element, remote){
+    console.log('ConnectAbility onConnect remote is proxy:' + (remote instanceof rpc.RemoteProxy));
+}
+function onDisconnectCallback(element){
+    console.log('ConnectAbility onDisconnect element.deviceId : ' + element.deviceId)
+}
+function onFailedCallback(code){
+    console.log('featureAbilityTest ConnectAbility onFailed errCode : ' + code)
+}
+var connId = featureAbility.connectAbility(
+    {
+        deviceId: deviceId,
+        bundleName: "com.ix.ServiceAbility",
+        abilityName: "ServiceAbilityA",
+    },
+    {
+        onConnect: onConnectCallback,
+        onDisconnect: onDisconnectCallback,
+        onFailed: onFailedCallback,
+    },
+);
+```
+
+#### FeatureAbility.disconnectAbility(connection: number, callback:AsyncCallback\<void>): void
+
+* Functionality
+
+  Disconnects this ability from a specific Service ability. This method uses a callback to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ------------- | ---- | ------------------------------ |
+| connection | Read-only| number        | Yes| ID of the Service ability to disconnect.|
+| callback   | Read-only| AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+function onConnectCallback(element, remote){
+    console.log('ConnectAbility onConnect remote is proxy:' + (remote instanceof rpc.RemoteProxy));
+}
+function onDisconnectCallback(element){
+    console.log('ConnectAbility onDisconnect element.deviceId : ' + element.deviceId)
+}
+function onFailedCallback(code){
+    console.log('featureAbilityTest ConnectAbility onFailed errCode : ' + code)
+}
+var connId = featureAbility.connectAbility(
+    {
+        bundleName: "com.ix.ServiceAbility",
+        abilityName: "ServiceAbilityA",
+    },
+    {
+        onConnect: onConnectCallback,
+        onDisconnect: onDisconnectCallback,
+        onFailed: onFailedCallback,
+    },
+);
+var result = featureAbility.disconnectAbility(connId,
+    (error,data) => {
+    console.log('featureAbilityTest DisConnectJsSameBundleName result errCode : ' + error.code + " data: " + data)
+    },
+);
+```
+
+#### FeatureAbility.disconnectAbility(connection: number): Promise\<void>
+
+* Functionality
+
+  Disconnects this ability from a specific Service ability. This method uses a promise to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ------ | ---- | ------------------------------ |
+| connection | Read-only| number | Yes| ID of the Service ability to disconnect.|
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+function onConnectCallback(element, remote){
+    console.log('ConnectAbility onConnect remote is proxy:' + (remote instanceof rpc.RemoteProxy));
+}
+function onDisconnectCallback(element){
+    console.log('ConnectAbility onDisconnect element.deviceId : ' + element.deviceId)
+}
+function onFailedCallback(code){
+    console.log('featureAbilityTest ConnectAbility onFailed errCode : ' + code)
+}
+var connId = featureAbility.connectAbility(
+    {
+        bundleName: "com.ix.ServiceAbility",
+        abilityName: "ServiceAbilityA",
+    },
+    {
+        onConnect: onConnectCallback,
+        onDisconnect: onDisconnectCallback,
+        onFailed: onFailedCallback,
+    },
+);
+var result = await featureAbility.disconnectAbility(connId);
+```
+
+
+#### FeatureAbility.continueAbility(options: ContinueAbilityOptions, callback: AsyncCallback\<void>): void;
+
+* Functionality
+
+  Migrates an ability to another device. This method uses a callback to return the execution result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ---------------------- | ---- | ------------------- |
+| options  | Read-only| ContinueAbilityOptions | Yes| Ability to migrate.|
+| callback | Read-only| AsyncCallback\<void>   | Yes| Callback used to return the result.|
+
+- ContinueAbilityOptions
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ------- | ---- | ----------------------------------------------------------- |
+| deviceId   | Read-only| string  | Yes| Information about the ability to migrate.|
+| reversible | Read-only| boolean | Yes| Whether migration back is supported. Currently, this feature is not supported. This parameter is reserved and can be set to **false**.|
+
+* Example
+
+```javascript
+import featureAbility from '@ohos.ability.featureAbility'
+
+async StartContinueAbility(deviceId) {
+    let continueAbilityOptions = {
+        reversible: false,
+        deviceId: deviceId,
+    }
+    function ContinueAbilityCallback(err, data) {
+        console.info("[Demo] ContinueAbilityCallback, result err = " + JSON.stringify(err));
+        console.info("[Demo] ContinueAbilityCallback, result data= " + JSON.stringify(data));
+    }
+    await featureAbility.continueAbility(continueAbilityOptions, ContinueAbilityCallback);
+    console.info('[Demo] featureAbility.StartContinueAbility end');
+}
+this.StartContinueAbility(remoteDeviceId); //remoteDeviceId is acquired from DeviceManager
+```
+
+#### AbilityResult
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | --------------------- | ---- | ------------------------------------------------------------ |
+| resultCode | Read-only| number                | Yes| Result code returned after the ability is destroyed. The feature for defining error-specific result codes is coming soon.|
+| want       | Read-only| [Want](#Want)| No| Data returned after the ability is destroyed. You can define the data to be returned. This parameter can be **null**.|
+
+#### StartAbilityParameter
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------------------- | -------- | --------------------- | ---- | ------------------------------------------------------------ |
+| want                | Read-only| [Want](#Want)| Yes| Information about the ability to start.|
+| abilityStartSetting | Read-only| {[key: string]: any}  | No| Special attribute of the ability to start. This attribute can be passed in the method call.|
+
+#### Want
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----------- | -------- | -------------------- | ---- | ------------------------------------------------------------ |
+| deviceId    | Read-only| string               | No| ID of the device that runs the ability.|
+| bundleName  | Read-only| string               | No| Bundle name of the ability to start. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.|
+| abilityName | Read-only| string               | No| Name of the ability to start. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.|
+| uri         | Read-only| string               | No| URI information to match. If **uri** is specified in a **Want** object, the **Want** object will match the specified URI information, including **scheme**, **schemeSpecificPart**, **authority**, and **path**.|
+| type        | Read-only| string               | No| MIME type, for example, text/plain or image/*.|
+| flags       | Read-only| number               | No| How the **Want** object will be handled. By default, a number is passed. For details, see [flags](#flags).|
+| action      | Read-only| string               | No| Action option.|
+| parameters  | Read-only| {[key: string]: any} | No| List of parameters in a **Want** object.|
+| entities    | Read-only| Array\<string>       | No| List of entities.|
+
+## flags
+
+| Name| Name| Description|
+| ------------------------------------ | ---------- | ------------------------------------------------------------ |
+| FLAG_AUTH_READ_URI_PERMISSION        | 0x00000001 | Indicates the permission to read the URI.|
+| FLAG_AUTH_WRITE_URI_PERMISSION       | 0x00000002 | Indicates the permission to write the URI.|
+| FLAG_ABILITY_FORWARD_RESULT          | 0x00000004 | Returns the result to the ability.|
+| FLAG_ABILITY_CONTINUATION            | 0x00000008 | Indicates whether the ability on the local device can be migrated to a remote device.|
+| FLAG_NOT_OHOS_COMPONENT              | 0x00000010 | Indicates that a component does not belong to OHOS.|
+| FLAG_ABILITY_FORM_ENABLED            | 0x00000020 | Indicates whether to enable an ability.|
+| FLAG_AUTH_PERSISTABLE_URI_PERMISSION | 0x00000040 | Indicates the permission to make the URI persistent.|
+| FLAG_AUTH_PREFIX_URI_PERMISSION      | 0x00000080 | Indicates the permission to verify URIs by prefix matching.|
+| FLAG_ABILITYSLICE_MULTI_DEVICE       | 0x00000100 | Supports cross-device startup in a distributed scheduler.|
+| FLAG_START_FOREGROUND_ABILITY        | 0x00000200 | Indicates that the Service ability is started regardless of whether the host application has been started.|
+| FLAG_ABILITY_CONTINUATION_REVERSIBLE | 0x00000400 | Indicates that the migration is reversible.|
+| FLAG_INSTALL_ON_DEMAND               | 0x00000800 | Indicates that the specific ability will be installed if it has not been installed.|
+| FLAG_INSTALL_WITH_BACKGROUND_MODE    | 0x80000000 | Indicates that the specific ability will be installed in the background if it has not been installed.|
+| FLAG_ABILITY_CLEAR_MISSION           | 0x00008000 | Clears other operation missions. This flag can be set for the **Want** object passed to **ohos.app.Context#startAbility** and must be used together with **flag_ABILITY_NEW_MISSION**.|
+| FLAG_ABILITY_NEW_MISSION             | 0x10000000 | Creates a mission on the historical mission stack.|
+| FLAG_ABILITY_MISSION_TOP             | 0x20000000 | Starts the mission on the top of the existing mission stack; creates an ability instance if no mission exists.|

en/application-dev/reference/apis/js-apis-notification.md

+# Notification Module
+
+## Applicable Devices
+
+| API                                                          | Phone | Tablet | Smart TV | Wearable |
+| ------------------------------------------------------------ | ---- | ---- | ------ | -------- |
+| Notification.publish(request: NotificationRequest, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.publish(request: NotificationRequest)           | Yes | Yes | Yes   | Yes     |
+| Notification.cancel(id: number, label: string, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.cancel(id：number, label?：string）             | Yes | Yes | Yes   | Yes     |
+| Notification.cancel(id: number, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.cancelAll(callback: AsyncCallback\<void\>)      | Yes | Yes | Yes   | Yes     |
+| Notification.cancelAll()                                     | Yes | Yes | Yes   | Yes     |
+| Notification.addSlot(slot: NotificationSlot, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.addSlot(slot: NotificationSlot)                 | Yes | Yes | Yes   | Yes     |
+| Notification.addSlot(type: SlotType, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.addSlot(type: SlotType)                         | Yes | Yes | Yes   | Yes     |
+| Notification.addSlots(slots: Array\<NotificationSlot\>, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.addSlots(slots: Array\<NotificationSlot\>)      | Yes | Yes | Yes   | Yes     |
+| Notification.getSlot(slotType: SlotType, callback: AsyncCallback\<NotificationSlot\>) | Yes | Yes | Yes   | Yes     |
+| Notification.getSlot(slotType: SlotType)                     | Yes | Yes | Yes   | Yes     |
+| Notification.getSlots(callback: AsyncCallback<Array\<NotificationSlot\>>) | Yes | Yes | Yes   | Yes     |
+| Notification.getSlots()                                      | Yes | Yes | Yes   | Yes     |
+| Notification.removeSlot(slotType: SlotType, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.removeSlot(slotType: SlotType)                  | Yes | Yes | Yes   | Yes     |
+| Notification.removeAllSlots(callback: AsyncCallback\<void\>): void | Yes | Yes | Yes   | Yes     |
+| Notification.removeAllSlots(): Promise\<void\>               | Yes | Yes | Yes   | Yes     |
+| Notification.subscribe(subscriber: NotificationSubscriber, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.subscribe(subscriber: NotificationSubscriber, info: NotificationSubscribeInfo, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.subscribe(subscriber: NotificationSubscriber, info?: NotificationSubscribeInfo) | Yes | Yes | Yes   | Yes     |
+| Notification.unsubscribe(subscriber: NotificationSubscriber, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.unsubscribe(subscriber: NotificationSubscriber) | Yes | Yes | Yes   | Yes     |
+| Notification.enableNotification(bundle: BundleOption, enable: boolean, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.enableNotification(bundle: BundleOption, enable: boolean) | Yes | Yes | Yes   | Yes     |
+| Notification.isNotificationEnabled(bundle: BundleOption, callback: AsyncCallback\<boolean\>) | Yes | Yes | Yes   | Yes     |
+| Notification.isNotificationEnabled(bundle: BundleOption)     | Yes | Yes | Yes   | Yes     |
+| Notification.isNotificationEnabled(callback: AsyncCallback\<boolean\>) | Yes | Yes | Yes   | Yes     |
+| Notification.isNotificationEnabled()                         | Yes | Yes | Yes   | Yes     |
+| Notification.displayBadge(bundle: BundleOption, enable: boolean, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.displayBadge(bundle: BundleOption, enable: boolean) | Yes | Yes | Yes   | Yes     |
+| Notification.isBadgeDisplayed(bundle: BundleOption, callback: AsyncCallback\<boolean\>) | Yes | Yes | Yes   | Yes     |
+| Notification.isBadgeDisplayed(bundle: BundleOption)          | Yes | Yes | Yes   | Yes     |
+| Notification.setSlotByBundle(bundle: BundleOption, slot: NotificationSlot, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.setSlotByBundle(bundle: BundleOption, slot: NotificationSlot) | Yes | Yes | Yes   | Yes     |
+| Notification.getSlotsByBundle(bundle: BundleOption, callback: AsyncCallback<Array\<NotificationSlot\>>) | Yes | Yes | Yes   | Yes     |
+| Notification.getSlotsByBundle(bundle: BundleOption)          | Yes | Yes | Yes   | Yes     |
+| Notification.getSlotNumByBundle(bundle: BundleOption, callback: AsyncCallback\<number\>) | Yes | Yes | Yes   | Yes     |
+| Notification.getSlotNumByBundle(bundle: BundleOption)        | Yes | Yes | Yes   | Yes     |
+| Notification.remove(bundle: BundleOption, notificationKey: NotificationKey, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.remove(bundle: BundleOption, notificationKey: NotificationKey) | Yes | Yes | Yes   | Yes     |
+| Notification.remove(hashCode: string, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.remove(hashCode: string)                        | Yes | Yes | Yes   | Yes     |
+| Notification.removeAll(bundle: BundleOption, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.removeAll(callback: AsyncCallback\<void\>)      | Yes | Yes | Yes   | Yes     |
+| Notification.removeAll(bundle?: BundleOption)                | Yes | Yes | Yes   | Yes     |
+| Notification.getAllActiveNotifications(callback: AsyncCallback<Array\<NotificationRequest\>>) | Yes | Yes | Yes   | Yes     |
+| Notification.getAllActiveNotifications()                     | Yes | Yes | Yes   | Yes     |
+| Notification.getActiveNotificationCount(callback: AsyncCallback\<number\>) | Yes | Yes | Yes   | Yes     |
+| Notification.getActiveNotificationCount()                    | Yes | Yes | Yes   | Yes     |
+| Notification.getActiveNotifications(callback: AsyncCallback<Array\<NotificationRequest\>>) | Yes | Yes | Yes   | Yes     |
+| Notification.getActiveNotifications()                        | Yes | Yes | Yes   | Yes     |
+| Notification.cancelGroup(groupName: string, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.cancelGroup(groupName: string)                  | Yes | Yes | Yes   | Yes     |
+| Notification.removeGroupByBundle(bundle: BundleOption, groupName: string, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.removeGroupByBundle(bundle: BundleOption, groupName: string) | Yes | Yes | Yes   | Yes     |
+| Notification.setDoNotDisturbDate(date: DoNotDisturbDate, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| Notification.setDoNotDisturbDate(date: DoNotDisturbDate)     | Yes | Yes | Yes   | Yes     |
+| Notification.getDoNotDisturbDate(callback: AsyncCallback\<DoNotDisturbDate\>) | Yes | Yes | Yes   | Yes     |
+| Notification.getDoNotDisturbDate()                           | Yes | Yes | Yes   | Yes     |
+| Notification.supportDoNotDisturbMode(callback: AsyncCallback\<boolean\>) | Yes | Yes | Yes   | Yes     |
+| Notification.supportDoNotDisturbMode()                       | Yes | Yes | Yes   | Yes     |
+| WantAgent.getWantAgent(info: WantAgentInfo, callback: AsyncCallback\<WantAgent\>) | Yes | Yes | Yes   | Yes     |
+| WantAgent.getWantAgent(info: WantAgentInfo): Promise\<WantAgent\> | Yes | Yes | Yes   | Yes     |
+| WantAgent.getBundleName(agent: WantAgent, callback: AsyncCallback\<string\>) | Yes | Yes | Yes   | Yes     |
+| WantAgent.getBundleName(agent: WantAgent): Promise\<string\> | Yes | Yes | Yes   | Yes     |
+| WantAgent.getUid(agent: WantAgent, callback: AsyncCallback\<number\>) | Yes | Yes | Yes   | Yes     |
+| WantAgent.getUid(agent: WantAgent): Promise\<number\>        | Yes | Yes | Yes   | Yes     |
+| WantAgent.getWant(agent: WantAgent, callback: AsyncCallback\<Want\>) | Yes | Yes | Yes   | Yes     |
+| WantAgent.getWant(agent: WantAgent): Promise\<Want\>         | Yes | Yes | Yes   | Yes     |
+| WantAgent.cancel(agent: WantAgent, callback: AsyncCallback\<void\>) | Yes | Yes | Yes   | Yes     |
+| WantAgent.cancel(agent: WantAgent): Promise\<void\>          | Yes | Yes | Yes   | Yes     |
+| WantAgent.trigger(agent: WantAgent, triggerInfo: TriggerInfo, callback?: Callback\<CompleteData\>) | Yes | Yes | Yes   | Yes     |
+| WantAgent.equal(agent: WantAgent, otherAgent: WantAgent, callback: AsyncCallback\<boolean\>) | Yes | Yes | Yes   | Yes     |
+| WantAgent.equal(agent: WantAgent, otherAgent: WantAgent): Promise\<boolean\> | Yes | Yes | Yes   | Yes     |
+
+
+## Required Permissions
+
+None
+
+
+## Modules to Import
+
+```js
+import Notification from '@ohos.notification';
+```
+
+## Notification.publish(request: NotificationRequest, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Publishes a notification. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | ------------------------------------------- |
+| request  | Read-only| NotificationRequest   | Yes| Notification to publish.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- NotificationRequest
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------------------- | -------- | --------------------------------------------- | ---- | -------------------------- |
+| content               | Readable and writable| NotificationContent                           | Yes| Notification content.|
+| id                    | Readable and writable| number                                        | No| Notification ID.|
+| slotType              | Readable and writable| SlotType                                      | No| Notification slot type.|
+| isOngoing             | Readable and writable| boolean                                       | No| Whether the notification is an ongoing notification.|
+| isUnremovable         | Readable and writable| boolean                                       | No| Whether the notification can be removed.|
+| deliveryTime          | Readable and writable| number                                        | No| Time when the notification is sent.|
+| tapDismissed          | Readable and writable| boolean                                       | No| Whether the notification can be automatically cleared.|
+| autoDeletedTime       | Readable and writable| number                                        | No| Time when the notification is automatically cleared.|
+| wantAgent             | Readable and writable| WantAgent                                     | No| **WantAgent** object to which the notification will be redirected after being clicked.|
+| extraInfo             | Readable and writable| {[key: string]: any}                          | No| Extended parameter.|
+| color                 | Readable and writable| number                                        | No| Background color of the notification.|
+| colorEnabled          | Readable and writable| boolean                                       | No| Whether the notification background color is enabled.|
+| isAlertOnce           | Readable and writable| boolean                                       | No| Whether the notification triggers an alert only once.|
+| isStopwatch           | Readable and writable| boolean                                       | No| Whether to display the stopwatch.|
+| isCountDown           | Readable and writable| boolean                                       | No| Whether to display the countdown time.|
+| isFloatingIcon        | Readable and writable| boolean                                       | No| Whether the notification is displayed as a floating icon.|
+| label                 | Readable and writable| string                                        | No| Notification label.|
+| badgeIconStyle        | Readable and writable| number                                        | No| Notification badge type.|
+| showDeliveryTime      | Readable and writable| boolean                                       | No| Whether to display the time when the notification is delivered.|
+| actionButtons         | Readable and writable| Array\<NotificationActionButton\>             | No| Buttons in the notification. Up to two buttons are allowed.|
+| smallIcon             | Readable and writable| PixelMap                                      | No| Small notification icon.|
+| largeIcon             | Readable and writable| PixelMap                                      | No| Large notification icon.|
+| creatorBundleName     | Read-only| string                                        | No| Name of the bundle that creates the notification.|
+| creatorUid            | Read-only| number                                        | No| UID of the notification creator.|
+| creatorPid            | Read-only| number                                        | No| PID of the notification creator.|
+| hashCode              | Read-only| string                                        | No| Unique ID of the notification.|
+| classification        | Readable and writable| string                                        | No| Notification category.|
+| groupName             | Readable and writable| string                                        | No| Notification group name.|
+| template<sup>8+</sup> | Readable and writable| [NotificationTemplate](#notificationtemplate) | No| Notification template.|
+
+NotificationContent
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----------- | -------- | ---------------------------- | ---- | ------------------ |
+| contentType | Readable and writable| ContentType                  | Yes| Notification content type.|
+| normal      | Readable and writable| NotificationBasicContent     | No| Normal text.|
+| longText    | Readable and writable| NotificationLongTextContent  | No| Long text.|
+| multiLine   | Readable and writable| NotificationMultiLineContent | No| Multi-line text.|
+| picture     | Readable and writable| NotificationPictureContent   | No| Picture-attached.|
+
+- ContentType
+
+| Name| Readable/Writable| Type| Description|
+| --------------------------------- | -------- | ----------- | ---------------- |
+| NOTIFICATION_CONTENT_BASIC_TEXT   | Read-only| ContentType | Normal text notification.|
+| NOTIFICATION_CONTENT_LONG_TEXT    | Read-only| ContentType | Long text notification.|
+| NOTIFICATION_CONTENT_PICTURE      | Read-only| ContentType | Picture-attached notification.|
+| NOTIFICATION_CONTENT_CONVERSATION | Read-only| ContentType | Conversation notification.|
+| NOTIFICATION_CONTENT_MULTILINE    | Read-only| ContentType | Multi-line text notification.|
+
+- NotificationBasicContent
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------------- | -------- | ------ | ---- | -------------------------------- |
+| title          | Readable and writable| string | Yes| Notification title.|
+| text           | Readable and writable| string | Yes| Notification content.|
+| additionalText | Readable and writable| string | Yes| Additional information of the notification.|
+
+- NotificationLongTextContent
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------------- | -------- | ------ | ---- | -------------------------------- |
+| title          | Readable and writable| string | Yes| Notification title.|
+| text           | Readable and writable| string | Yes| Notification content.|
+| additionalText | Readable and writable| string | Yes| Additional information of the notification.|
+| longText       | Readable and writable| string | Yes| Long text content of the notification.|
+| briefText      | Readable and writable| string | Yes| Brief text of the notification.|
+| expandedTitle  | Readable and writable| string | Yes| Title of the notification in the expanded state.|
+
+- NotificationMultiLineContent
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------------- | -------- | --------------- | ---- | -------------------------------- |
+| title          | Readable and writable| string          | Yes| Notification title.|
+| text           | Readable and writable| string          | Yes| Notification content.|
+| additionalText | Readable and writable| string          | Yes| Additional information of the notification.|
+| briefText      | Readable and writable| string          | Yes| Brief text of the notification.|
+| longTitle      | Readable and writable| string          | Yes| Title of the notification in the expanded state.|
+| lines          | Readable and writable| Array\<String\> | Yes| Multi-line content.|
+
+- NotificationPictureContent
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------------- | -------- | -------------- | ---- | -------------------------------- |
+| title          | Readable and writable| string         | Yes| Notification title.|
+| text           | Readable and writable| string         | Yes| Notification content.|
+| additionalText | Readable and writable| string         | Yes| Additional information of the notification.|
+| briefText      | Readable and writable| string         | Yes| Brief text of the notification.|
+| expandedTitle  | Readable and writable| string         | Yes| Title of the notification in the expanded state.|
+| picture        | Readable and writable| image.PixelMap | Yes| Picture included in the notification.|
+
+- SlotType
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------------------- | -------- | -------- | ---- | -------- |
+| SOCIAL_COMMUNICATION | Read-only| SlotType | No| Notification slot for social communication.|
+| SERVICE_INFORMATION  | Read-only| SlotType | No| Notification slot for service information.|
+| CONTENT_INFORMATION  | Read-only| SlotType | No| Notification slot for content consultation.|
+| OTHER_TYPES          | Read-only| SlotType | No| Notification slot for other purposes.|
+
+- NotificationActionButton
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | --------------------- | ---- | ------------------------- |
+| title     | Readable and writable| string                | Yes| Button title.|
+| wantAgent | Readable and writable| wantAgent             | Yes| **WantAgent** of the button.|
+| extras    | Readable and writable| Array\<String\>       | No| Extra information of the button.|
+| icon      | Readable and writable| image.PixelMap        | No| Button icon.|
+| userInput | Readable and writable| NotificationUserInput | No| User input object.|
+
+- NotificationUserInput
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ------ | ---- | ----------------------------- |
+| inputKey | Readable and writable| string | Yes| Key to identify the user input.|
+
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// publish callback
+function publishCallback(err) {
+	console.info("==========================>publishCallback=======================>");
+}
+// NotificationRequest object
+var notificationRequest = {
+    id: 1,
+    content: {
+        contentType: notify.ContentType.NOTIFICATION_CONTENT_BASIC_TEXT,
+        normal: {
+            title: "test_title",
+            text: "test_text",
+            additionalText: "test_additionalText"
+        }
+    }
+}
+Notification.publish(notificationRequest, publishCallback)
+```
+
+
+
+## Notification.publish(request: NotificationRequest)
+
+- Functionality
+
+  Publishes a notification. This method uses a promise to return the result.
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+// NotificationRequest object
+var notificationRequest = {
+    notificationId: 1,
+    content: {
+        contentType: notify.ContentType.NOTIFICATION_CONTENT_BASIC_TEXT,
+        normal: {
+            title: "test_title",
+            text: "test_text",
+            additionalText: "test_additionalText"
+        }
+    }
+}
+Notification.publish(notificationRequest).then((void) => {
+	console.info("==========================>publishCallback=======================>");
+});
+
+```
+
+
+
+## Notification.cancel(id: number, label: string, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Cancels a notification with the specified ID and label. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| id       | Read-only| number                | Yes| Notification ID.|
+| label    | Read-only| string                | Yes| Notification label.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// cancel callback
+function cancelCallback(err) {
+	console.info("==========================>cancelCallback=======================>");
+}
+Notification.cancel(0, "label", cancelCallback)
+```
+
+
+
+## Notification.cancel(id: number, label? : string)
+
+- Functionality
+
+  Cancels a notification with the specified ID and label. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----- | -------- | ------ | ---- | -------- |
+| id    | Read-only| number | Yes| Notification ID.|
+| label | Read-only| string | No| Notification label.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+Notification.cancel(0).then((void) => {
+	console.info("==========================>cancelCallback=======================>");
+});
+```
+
+
+
+## Notification.cancel(id: number, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Cancels a notification with the specified ID. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| id       | Read-only| number                | Yes| Notification ID.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// cancel callback
+function cancelCallback(err) {
+	console.info("==========================>cancelCallback=======================>");
+}
+Notification.cancel(0, cancelCallback)
+```
+
+
+
+## Notification.cancelAll(callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Cancels all notifications. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// cancel callback
+function cancelAllback(err) {
+	console.info("==========================>cancelAllback=======================>");
+}
+Notification.cancelAll(cancelCallback)
+```
+
+
+
+## Notification.cancelAll()
+
+- Functionality
+
+  Cancels all notifications. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+Notification.cancelAll().then((void) => {
+	console.info("==========================>cancelAllback=======================>");
+});
+```
+
+
+
+## Notification.addSlot(slot: NotificationSlot, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Adds a notification slot. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| slot     | Read-only| NotificationSlot      | Yes| Notification slot to add.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- NotificationSlot
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------------------- | -------- | --------------- | ---- | ------------------------------------------ |
+| type                 | Readable and writable| SlotType        | Yes| Notification slot type.|
+| level                | Readable and writable| number          | No| Notification level. If this parameter is not set, the default value is used based on the notification slot type.|
+| desc                 | Readable and writable| string          | No| Description of the notification slot.|
+| badgeFlag            | Readable and writable| boolean         | No| Whether to display the badge.|
+| bypassDnd            | Readable and writable| boolean         | No| Whether to bypass the system do-not-disturb (DND) setting.|
+| lockscreenVisibility | Readable and writable| boolean         | No| How the notification is displayed on the locked screen.|
+| vibrationEnabled     | Readable and writable| boolean         | No| Whether vibration is enabled for the notification.|
+| sound                | Readable and writable| string          | No| Notification sound.|
+| lightEnabled         | Readable and writable| boolean         | No| Whether light is enabled for the notification.|
+| lightColor           | Readable and writable| number          | No| Notification light color.|
+| vibrationValues      | Readable and writable| Array\<number\> | No| Notification vibration mode.|
+
+* Return values
+
+  void
+
+* Example
+
+```js
+// addSlot callback
+function addSlotCallBack(err) {
+	console.info("==========================>addSlotCallBack=======================>");
+}
+// NotificationSlot object
+var notificationSlot = {
+    type: Notification.SlotType.SOCIAL_COMMUNICATION
+}
+Notification.addSlot(notificationSlot, addSlotCallBack)
+```
+
+
+
+## Notification.addSlot(slot: NotificationSlot)
+
+- Functionality
+
+  Adds a notification slot. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---- | -------- | ---------------- | ---- | -------------------- |
+| slot | Read-only| NotificationSlot | Yes| Notification slot to add.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+// NotificationSlot object
+var notificationSlot = {
+    type: Notification.SlotType.SOCIAL_COMMUNICATION
+}
+Notification.addSlot(notificationSlot).then((void) => {
+	console.info("==========================>addSlotCallback=======================>");
+});
+```
+
+
+
+## Notification.addSlot(type: SlotType, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Adds a notification slot. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | ---------------------- |
+| type     | Read-only| SlotType              | Yes| Type of the notification slot to add.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// addSlot callback
+function addSlotCallBack(err) {
+	console.info("==========================>addSlotCallBack=======================>");
+}
+Notification.addSlot(Notification.SlotType.SOCIAL_COMMUNICATION, addSlotCallBack)
+```
+
+
+
+## Notification.addSlot(type: SlotType)
+
+- Functionality
+
+  Adds a notification slot. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---- | -------- | -------- | ---- | ---------------------- |
+| type | Read-only| SlotType | Yes| Type of the notification slot to add.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+Notification.addSlot(Notification.SlotType.SOCIAL_COMMUNICATION).then((void) => {
+	console.info("==========================>addSlotCallback=======================>");
+});
+```
+
+
+
+## Notification.addSlots(slots: Array\<NotificationSlot\>, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Adds multiple notification slots. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ------------------------- | ---- | ------------------------ |
+| slots    | Read-only| Array\<NotificationSlot\> | Yes| Notification slots to add.|
+| callback | Read-only| AsyncCallback\<void\>     | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// addSlots callback
+function addSlotsCallBack(err) {
+	console.info("==========================>addSlotsCallBack=======================>");
+}
+// NotificationSlot object
+var notificationSlot = {
+    type: Notification.SlotType.SOCIAL_COMMUNICATION
+}
+// NotificationSlotArray object
+var notificationSlotArray = new Array(); 
+notificationSlotArray[0] = notificationSlot; 
+
+Notification.addSlots(notificationSlotArray, addSlotsCallBack)
+```
+
+
+
+## Notification.addSlots(slots: Array\<NotificationSlot\>)
+
+- Functionality
+
+  Adds multiple notification slots. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----- | -------- | ------------------------- | ---- | ------------------------ |
+| slots | Read-only| Array\<NotificationSlot\> | Yes| Notification slots to add.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+// NotificationSlot object
+var notificationSlot = {
+    type: Notification.SlotType.SOCIAL_COMMUNICATION
+}
+// NotificationSlotArray object
+var notificationSlotArray = new Array(); 
+notificationSlotArray[0] = notificationSlot; 
+
+Notification.addSlots(notificationSlotArray).then((void) => {
+	console.info("==========================>addSlotCallback=======================>");
+});
+```
+
+
+
+## Notification.getSlot(slotType: SlotType, callback: AsyncCallback\<NotificationSlot\>)
+
+- Functionality
+
+  Obtains a notification slot of the specified type. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------------------- | ---- | ----------------------------------------------------------- |
+| slotType | Read-only| slotType                          | Yes| Type of the notification slot, which can be used for social communication, service information, content consultation, and other purposes.|
+| callback | Read-only| AsyncCallback\<NotificationSlot\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// getSlot callback
+function getSlotCallback(err,data) {
+	console.info("==========================>getSlotCallback=======================>");
+}
+var slotType = Notification.SlotType.SOCIAL_COMMUNICATION;
+Notification.getSlot(slotType, getSlotCallback)
+```
+
+
+
+## Notification.getSlot(slotType)
+
+- Functionality
+
+  Obtains a notification slot of the specified type. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | -------- | ---- | ----------------------------------------------------------- |
+| slotType | Read-only| slotType | Yes| Type of the notification slot, which can be used for social communication, service information, content consultation, and other purposes.|
+
+- Return value
+
+  Promise\<NotificationSlot\>
+
+- Example
+
+```js
+var slotType = Notification.SlotType.SOCIAL_COMMUNICATION;
+Notification.getSlot(slotType).then((data) => {
+	console.info("==========================>getSlotCallback=======================>");
+});
+```
+
+
+
+## Notification.getSlots(callback: AsyncCallback<Array\<NotificationSlot\>>)
+
+- Functionality
+
+  Obtains all notification slots. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------------------- | ---- | -------------------- |
+| callback | Read-only| AsyncCallback\<NotificationSlot\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// getSlots callback
+function getSlotsCallback(err,data) {
+	console.info("==========================>getSlotsCallback=======================>");
+}
+Notification.getSlots(getSlotsCallback)
+```
+
+
+
+## Notification.getSlots()
+
+- Functionality
+
+  Obtains all notification slots of the current application. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return value
+
+  Promise\<Array\<NotificationSlot\>\>
+
+- Example
+
+```js
+Notification.getSlots().then((data) => {
+	console.info("==========================>getSlotsCallback=======================>");
+});
+```
+
+
+
+## Notification.removeSlot(slotType: SlotType, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Removes a notification slot of the specified type. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | ----------------------------------------------------------- |
+| SlotType | Read-only| SlotType              | Yes| Type of the notification slot, which can be used for social communication, service information, content consultation, and other purposes.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// removeSlot callback
+function removeSlotCallback(err) {
+	console.info("==========================>removeSlotCallback=======================>");
+}
+var slotType = Notification.SlotType.SOCIAL_COMMUNICATION;
+Notification.removeSlot(slotType,removeSlotCallback)
+```
+
+
+
+## Notification.removeSlot(slotType: SlotType)
+
+- Functionality
+
+  Removes a notification slot of the specified type. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | -------- | ---- | ----------------------------------------------------------- |
+| SlotType | Read-only| SlotType | Yes| Type of the notification slot, which can be used for social communication, service information, content consultation, and other purposes.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+var slotType = Notification.SlotType.SOCIAL_COMMUNICATION;
+Notification.removeSlot(slotType).then((void) => {
+	console.info("==========================>removeSlotCallback=======================>");
+});
+```
+
+
+
+## Notification.removeAllSlots(callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Removes all notification slots. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function removeAllCallBack(err) {
+	console.info("================>removeAllCallBack=======================>");
+}
+Notification.removeAllSlots(removeAllCallBack)
+```
+
+
+
+## Notification.removeAllSlots()
+
+- Functionality
+
+  Removes all notification slots. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+Notification.removeAllSlots().then((void) => {
+	console.info("==========================>removeAllCallBack=======================>");
+});
+```
+
+
+
+## Notification.subscribe(subscriber: NotificationSubscriber, info: NotificationSubscribeInfo, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Subscribes to a notification with the subscription information specified. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ------------------------- | ---- | ---------------- |
+| subscriber | Read-only| NotificationSubscriber    | Yes| Notification subscriber.|
+| info       | Read-only| NotificationSubscribeInfo | Yes| Subscription information.|
+| callback   | Read-only| AsyncCallback\<void\>     | Yes| Callback used to return the result.|
+
+- NotificationSubscriber
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------------------------------------------------------------ | -------- | -------- | ---- | -------------------------- |
+| onConsume?:(data: SubscribeCallbackData)                     | Readable and writable| function | No| Callback for receiving notifications.|
+| onCancel?:(data: SubscribeCallbackData)                      | Readable and writable| function | No| Callback for canceling notifications.|
+| onUpdate?:(data: NotificationSortingMap)                     | Readable and writable| function | No| Callback for notification sorting updates.|
+| onConnect?:()                                                | Readable and writable| function | No| Callback for subscription.|
+| onDisconnect?:()                                             | Readable and writable| function | No| Callback for unsubscription.|
+| onDestroy?:()                                                | Readable and writable| function | No| Callback for service destruction.|
+| onDoNotDisturbDateChange?:(mode: notification.DoNotDisturbDate) | Readable and writable| function | No| Callback for DND time setting updates.|
+
+- SubscribeCallbackData
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------------- | -------- | ---------------------- | ---- | -------- |
+| request         | Read-only| NotificationRequest    | Yes| Notification content.|
+| sortingMap      | Read-only| NotificationSortingMap | No| Notification sorting information.|
+| reason          | Read-only| number                 | No| Reason for deletion.|
+| sound           | Read-only| string                 | No| Sound used for notification.|
+| vibrationValues | Read-only| Array\<number\>        | No| Vibration used for notification.|
+
+- NotificationSortingMap
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------------- | -------- | ------------------------------------ | ---- | ---------------- |
+| sortings       | Read-only| {[key: string]: NotificationSorting} | Yes| Array of notification sorting information.|
+| sortedHashCode | Read-only| Array\<string\>                      | Yes| Array of unique notification IDs.|
+
+- NotificationSorting
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ---------------- | ---- | ------------ |
+| slot     | Read-only| NotificationSlot | Yes| Notification slot.|
+| hashCode | Read-only| string           | Yes| Unique ID of the notification.|
+| ranking  | Read-only| number           | Yes| Notification sequence number.|
+
+- DoNotDisturbType
+
+
+| Name| Readable/Writable| Type| Description|
+| ------------ | -------- | --------------------- | ---------------------------------------- |
+| TYPE_NONE    | Read-only| enum DoNotDisturbType | Non-DND.|
+| TYPE_ONCE    | Read-only| enum DoNotDisturbType | One-shot DND at the specified time segment (only considering the hour and minute)|
+| TYPE_DAILY   | Read-only| enum DoNotDisturbType | Daily DND at the specified time segment (only considering the hour and minute)|
+| TYPE_CLEARLY | Read-only| enum DoNotDisturbType | DND at the specified time segment (considering the year, month, day, hour, and minute)|
+
+- DoNotDisturbDate
+
+| Name| Readable/Writable| Type| Description|
+| ----- | -------- | ---------------- | ------------------------ |
+| type  | Readable and writable| DoNotDisturbType | DND time type.|
+| begin | Readable and writable| Date             | DND start time.|
+| end   | Readable and writable| Date             | DND end time.|
+
+- NotificationSubscribeInfo
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----------- | -------- | --------------- | ---- | ------------------------------- |
+| bundleNames | Readable and writable| Array\<string\> | No| Bundle names of the applications whose notifications are to be subscribed to.|
+| userId      | Readable and writable| number          | No| User whose notifications are to be subscribed to.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+// subscribe callback
+function subscribeCallback(err) {
+	console.info("==========================>subscribeCallback=======================>");
+}
+function onConsumeCallback(err, data) {
+	console.info("==========================>onConsumeCallback=======================>");
+}
+var subscriber = {
+    onConsume: onConsumeCallback
+}
+var info = {
+    bundleNames: ["bundleName1","bundleName2"]
+}
+Notification.subscribe(subscriber, info, subscribeCallback);
+```
+
+
+
+## Notification.subscribe(subscriber: NotificationSubscriber, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Subscribes to a notification. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ---------------------- | ---- | ---------------- |
+| subscriber | Read-only| NotificationSubscriber | Yes| Notification subscriber.|
+| callback   | Read-only| AsyncCallback\<void\>  | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function subscribeCallback(err) {
+	console.info("==========================>subscribeCallback=======================>");
+}
+function onConsumeCallback(err, data) {
+	console.info("==========================>onConsumeCallback=======================>");
+}
+var subscriber = {
+    onConsume: onConsumeCallback
+}
+Notification.subscribe(subscriber, subscribeCallback);
+```
+
+
+
+## Notification.subscribe(subscriber: NotificationSubscriber, info?: NotificationSubscribeInfo)
+
+- Functionality
+
+  Subscribes to a notification with the subscription information specified. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ------------------------- | ---- | ------------ |
+| subscriber | Read-only| NotificationSubscriber    | Yes| Notification subscriber.|
+| info       | Read-only| NotificationSubscribeInfo | No| Subscription information.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+function onConsumeCallback(err, data) {
+	console.info("==========================>onConsumeCallback=======================>");
+}
+var subscriber = {
+    onConsume: onConsumeCallback
+};
+Notification.subscribe(subscriber).then((void) => {
+	console.info("==========================>subscribeCallback=======================>");
+});
+```
+
+
+
+## Notification.unsubscribe(subscriber: NotificationSubscriber, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Unsubscribes from a notification. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ---------------------- | ---- | -------------------- |
+| subscriber | Read-only| NotificationSubscriber | Yes| Notification subscriber.|
+| callback   | Read-only| AsyncCallback\<void\>  | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function unsubscribeCallback(err) {
+	console.info("==========================>unsubscribeCallback=======================>");
+}
+function onConsumeCallback(err, data) {
+	console.info("==========================>onConsumeCallback=======================>");
+}
+var subscriber = {
+    onConsume: onConsumeCallback
+}
+Notification.unsubscribe(subscriber, unsubscribeCallback);
+```
+
+
+
+## Notification.unsubscribe(subscriber: NotificationSubscriber)
+
+- Functionality
+
+  Unsubscribes from a notification. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ---------------------- | ---- | ------------ |
+| subscriber | Read-only| NotificationSubscriber | Yes| Notification subscriber.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+function onConsumeCallback(err, data) {
+	console.info("==========================>onConsumeCallback=======================>");
+}
+var subscriber = {
+    onConsume: onConsumeCallback
+};
+Notification.unsubscribe(subscriber).then((void) => {
+	console.info("==========================>unsubscribeCallback=======================>");
+});
+```
+
+
+
+## Notification.enableNotification(bundle: BundleOption, enable: boolean, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Sets whether to enable notification for a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| bundle   | Read-only| BundleOption          | Yes| Bundle information.|
+| enable   | Read-only| boolean               | Yes| Whether to enable notification.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- BundleOption
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------ | -------- | ------ | ---- | ------ |
+| bundle | Readable and writable| string | Yes| Bundle name.|
+| uid    | Readable and writable| number | No| User ID.|
+- Return value
+
+  void
+
+- Example
+
+```js
+function enableNotificationCallback(err) {
+	console.info("==========================>enableNotificationCallback=======================>");
+}
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.enableNotification(bundle, false, enableNotificationCallback);
+```
+
+
+
+## Notification.enableNotification(bundle: BundleOption, enable: boolean)
+
+- Functionality
+
+  Sets whether to enable notification for a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------ | -------- | ------------ | ---- | ---------- |
+| bundle | Read-only| BundleOption | Yes| Bundle information.|
+| enable | Read-only| boolean      | Yes| Whether to enable notification.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.enableNotification(bundle, false).then((void) => {
+	console.info("==========================>enableNotificationCallback=======================>");
+});
+```
+
+
+
+## Notification.isNotificationEnabled(bundle: BundleOption, callback: AsyncCallback\<boolean\>)
+
+- Functionality
+
+  Checks whether notification is enabled for a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | ------------------------ |
+| bundle   | Read-only| BundleOption          | Yes| Bundle information.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function isNotificationEnabledCallback(err, data) {
+	console.info("==========================>isNotificationEnabledCallback=======================>");
+}
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.isNotificationEnabled(bundle, isNotificationEnabledCallback);
+```
+
+
+
+## Notification.isNotificationEnabled(bundle: BundleOption)
+
+- Functionality
+
+  Checks whether notification is enabled for a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------ | -------- | ------------ | ---- | ---------- |
+| bundle | Read-only| BundleOption | Yes| Bundle information.|
+
+- Return value
+
+  Promise\<boolean\>
+
+- Example
+
+```js
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.isNotificationEnabled(bundle).then((data) => {
+	console.info("==========================>isNotificationEnabledCallback=======================>");
+});
+```
+
+
+
+## Notification.isNotificationEnabled(callback: AsyncCallback\<boolean\>)
+
+- Functionality
+
+  Checks whether notification is enabled for the current application. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | ------------------------ |
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function isNotificationEnabledCallback(err, data) {
+	console.info("==========================>isNotificationEnabledCallback=======================>");
+}
+
+Notification.isNotificationEnabled(isNotificationEnabledCallback);
+```
+
+
+
+## Notification.isNotificationEnabled()
+
+- Functionality
+
+  Checks whether notification is enabled for the current application. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return value
+
+  Promise\<boolean\>
+
+- Example
+
+```js
+Notification.isNotificationEnabled().then((data) => {
+	console.info("==========================>isNotificationEnabledCallback=======================>");
+});
+```
+
+
+
+## Notification.displayBadge(bundle: BundleOption, enable: boolean, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Sets whether to display the badge in notifications for a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| bundle   | Read-only| BundleOption          | Yes| Bundle information.|
+| enable   | Read-only| boolean               | Yes| Whether to display the badge.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function displayBadgeCallback(err) {
+	console.info("==========================>displayBadgeCallback=======================>");
+}
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.displayBadge(bundle, false, displayBadgeCallback);
+```
+
+
+
+## Notification.displayBadge(bundle: BundleOption, enable: boolean)
+
+- Functionality
+
+  Sets whether to display the badge in notifications for a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------ | -------- | ------------ | ---- | ---------- |
+| bundle | Read-only| BundleOption | Yes| Bundle information.|
+| enable | Read-only| boolean      | Yes| Whether to display the badge.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.displayBadge(bundle, false).then((void) => {
+	console.info("==========================>displayBadgeCallback=======================>");
+});
+```
+
+
+
+## Notification.isBadgeDisplayed(bundle: BundleOption, callback: AsyncCallback\<boolean\>)
+
+- Functionality
+
+  Checks whether the badge will be displayed in notifications of a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | ------------------------ |
+| bundle   | Read-only| BundleOption          | Yes| Bundle information.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function isBadgeDisplayedCallback(err, data) {
+	console.info("==========================>isBadgeDisplayedCallback=======================>");
+}
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.isBadgeDisplayed(bundle, isBadgeDisplayedCallback);
+```
+
+
+
+## Notification.isBadgeDisplayed(bundle: BundleOption)
+
+- Functionality
+
+  Checks whether the badge will be displayed in notifications of a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------ | -------- | ------------ | ---- | ---------- |
+| bundle | Read-only| BundleOption | Yes| Bundle information.|
+
+- Return value
+
+  Promise\<boolean\>
+
+- Example
+
+```js
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.isBadgeDisplayed(bundle).then((data) => {
+	console.info("==========================>isBadgeDisplayedCallback=======================>");
+});
+```
+
+
+
+## Notification.setSlotByBundle(bundle: BundleOption, slot: NotificationSlot, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Sets a notification slot for a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| bundle   | Read-only| BundleOption          | Yes| Bundle information.|
+| slot     | Read-only| NotificationSlot      | Yes| Notification slot.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function setSlotByBundleCallback(err) {
+	console.info("==========================>setSlotByBundleCallback=======================>");
+}
+var bundle = {
+    bundle: "bundleName1";
+}
+var notificationSlot = {
+    type: Notification.SlotType.SOCIAL_COMMUNICATION
+}
+Notification.setSlotByBundle(bundle, notificationSlot, setSlotByBundleCallback);
+```
+
+
+
+## Notification.setSlotByBundle(bundle: BundleOption, slot: NotificationSlot)
+
+- Functionality
+
+  Sets a notification slot for a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------ | -------- | ------------ | ---- | ---------- |
+| bundle | Read-only| BundleOption | Yes| Bundle information.|
+| slot| Read-only| NotificationSlot| Yes| Notification slot.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+var bundle = {
+    bundle: "bundleName1";
+}
+var notificationSlot = {
+    type: Notification.SlotType.SOCIAL_COMMUNICATION
+}
+Notification.displayBadge(bundle, notificationSlot).then((void) => {
+	console.info("==========================>setSlotByBundleCallback=======================>");
+});
+```
+
+
+
+## Notification.getSlotsByBundle(bundle: BundleOption, callback: AsyncCallback<Array\<NotificationSlot\>>)
+
+- Functionality
+
+  Obtains the notification slots of a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ---------------------------------------- | ---- | -------------------- |
+| bundle   | Read-only| BundleOption                             | Yes| Bundle information.|
+| callback | Read-only| AsyncCallback<Array\<NotificationSlot\>> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function getSlotsByBundleCallback(err, data) {
+	console.info("==========================>getSlotsByBundleCallback=======================>");
+}
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.getSlotsByBundle(bundle, getSlotsByBundleCallback);
+```
+
+
+
+## Notification.getSlotsByBundle(bundle: BundleOption)
+
+- Functionality
+
+  Obtains the notification slots of a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------ | -------- | ------------ | ---- | ---------- |
+| bundle | Read-only| BundleOption | Yes| Bundle information.|
+
+- Return value
+
+  Promise<Array\<NotificationSlot\>>
+
+- Example
+
+```js
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.getSlotsByBundle(bundle).then((data) => {
+	console.info("==========================>getSlotsByBundleCallback=======================>");
+});
+```
+
+
+
+## Notification.getSlotNumByBundle(bundle: BundleOption, callback: AsyncCallback\<number\>)
+
+- Functionality
+
+  Obtains the number of notification slots of a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ------------------------- | ---- | ---------------------- |
+| bundle   | Read-only| BundleOption              | Yes| Bundle information.|
+| callback | Read-only| AsyncCallback\<number\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function getSlotNumByBundle(err, data) {
+	console.info("==========================>getSlotNumByBundleCallback=======================>");
+}
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.getSlotNumByBundle(bundle, getSlotNumByBundleCallback);
+```
+
+
+
+## Notification.getSlotNumByBundle(bundle: BundleOption)
+
+- Functionality
+
+  Obtains the number of notification slots of a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------ | -------- | ------------ | ---- | ---------- |
+| bundle | Read-only| BundleOption | Yes| Bundle information.|
+
+- Return value
+
+  Promise\<number\>
+
+- Example
+
+```js
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.getSlotNumByBundle(bundle).then((data) => {
+	console.info("==========================>getSlotNumByBundleCallback=======================>");
+});
+```
+
+
+
+## Notification.remove(bundle: BundleOption, notificationKey: NotificationKey, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Removes a notification for a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------------- | -------- | --------------------- | ---- | -------------------- |
+| bundle          | Read-only| BundleOption          | Yes| Bundle information.|
+| notificationKey | Read-only| NotificationKey       | Yes| Notification key.|
+| callback        | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- NotificationKey
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----- | -------- | ------ | ---- | -------- |
+| id    | Readable and writable| number | Yes| Notification ID.|
+| label | Readable and writable| string | No| Notification label.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function removeCallback(err) {
+	console.info("==========================>removeCallback=======================>");
+}
+var bundle = {
+    bundle: "bundleName1";
+}
+var notificationKey = {
+    id: 0;
+    label: "label";
+}
+Notification.remove(bundle, notificationKey, removeCallback);
+```
+
+
+
+## Notification.remove(bundle: BundleOption, notificationKey: NotificationKey)
+
+- Functionality
+
+  Removes a notification for a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------------- | -------- | --------------- | ---- | ---------- |
+| bundle          | Read-only| BundleOption    | Yes| Bundle information.|
+| notificationKey | Read-only| NotificationKey | Yes| Notification key.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+var bundle = {
+    bundle: "bundleName1";
+}
+var notificationKey = {
+    id: 0;
+    label: "label";
+}
+Notification.remove(bundle, notificationKey).then((void) => {
+	console.info("==========================>removeCallback=======================>");
+});
+```
+
+
+
+## Notification.remove(hashCode: string, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Removes a notification. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| hashCode | Read-only| string                | Yes| Unique notification ID.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function removeCallback(err) {
+	console.info("==========================>removeCallback=======================>");
+}
+
+Notification.remove(hashCode, removeCallback);
+```
+
+
+
+## Notification.remove(hashCode: string)
+
+- Functionality
+
+  Removes a notification. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ---------- | ---- | ---------- |
+| hashCode | Read-only| string | Yes| Unique notification ID.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+Notification.remove(hashCode).then((void) => {
+	console.info("==========================>removeCallback=======================>");
+});
+```
+
+
+
+## Notification.removeAll(bundle: BundleOption, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Removes all notifications for a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | ---------------------------- |
+| bundle   | Read-only| BundleOption          | Yes| Bundle information.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function removeAllCallback(err) {
+	console.info("==========================>removeAllCallback=======================>");
+}
+var bundle = {
+    bundle: "bundleName1";
+}
+Notification.removeAll(bundle, removeAllCallback);
+```
+
+
+
+## Notification.removeAll(callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Removes all notifications. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | -------------------- |
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function removeAllCallback(err) {
+	console.info("==========================>removeAllCallback=======================>");
+}
+
+Notification.removeAll(removeAllCallback);
+```
+
+
+
+## Notification.removeAll(bundle?: BundleOption)
+
+- Functionality
+
+  Removes all notifications for a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------ | -------- | ------------ | ---- | ---------- |
+| bundle | Read-only| BundleOption | No| Bundle information.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+Notification.removeAll().then((void) => {
+	console.info("==========================>removeAllCallback=======================>");
+});
+```
+
+
+
+## Notification.getAllActiveNotifications(callback: AsyncCallback<Array\<NotificationRequest\>>)
+
+- Functionality
+
+  Obtains all active notifications. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ------------------------------------------- | ---- | -------------------- |
+| callback | Read-only| AsyncCallback<Array\<NotificationRequest\>> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function getAllActiveNotificationsCallback(err, data) {
+	console.info("==========================>getAllActiveNotificationsCallback=======================>");
+}
+
+Notification.getAllActiveNotifications(getAllActiveNotificationsCallback);
+```
+
+
+
+## Notification.getAllActiveNotifications()
+
+- Functionality
+
+  Obtains all active notifications. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return value
+
+  Promise\<Array\<NotificationRequest\>\>
+
+- Example
+
+```js
+Notification.getAllActiveNotifications().then((data) => {
+	console.info("==========================>getAllActiveNotificationsCallback=======================>");
+});
+```
+
+
+
+## Notification.getActiveNotificationCount(callback: AsyncCallback\<number\>)
+
+- Functionality
+
+  Obtains the number of active notifications. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ---------------------- | ---- | ---------------------- |
+| callback | Read-only| AsyncCallback\<number\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function getActiveNotificationCountCallback(err, data) {
+	console.info("==========================>getActiveNotificationCountCallback=======================>");
+}
+
+Notification.getActiveNotificationCount(getActiveNotificationCountCallback);
+```
+
+
+
+## Notification.getActiveNotificationCount()
+
+- Functionality
+
+  Obtains the number of active notifications. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return value
+
+  Promise\<number>
+
+- Example
+
+```js
+Notification.getActiveNotificationCount().then((data) => {
+	console.info("==========================>getActiveNotificationCountCallback=======================>");
+});
+```
+
+
+
+## Notification.getActiveNotifications(callback: AsyncCallback<Array\<NotificationRequest\>>)
+
+- Functionality
+
+  Obtains active notifications of the current application. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ------------------------------------------- | ---- | ------------------------------ |
+| callback | Read-only| AsyncCallback<Array\<NotificationRequest\>> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function getActiveNotificationsCallback(err, data) {
+	console.info("==========================>getActiveNotificationsCallback=======================>");
+}
+
+Notification.getActiveNotifications(getActiveNotificationsCallback);
+```
+
+
+
+## Notification.getActiveNotifications()
+
+- Functionality
+
+  Obtains active notifications. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return value
+
+  Promise\<Array\<NotificationRequest\>\>
+
+- Example
+
+```js
+Notification.getActiveNotifications().then((data) => {
+	console.info("==========================>getActiveNotificationsCallback=======================>");
+});
+```
+
+
+
+## Notification.cancelGroup(groupName: string, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Cancels a notification group of the current application. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | --------------------- | ---- | ---------------------------- |
+| groupName | Read-only| string                | Yes| Name of the notification group to cancel.|
+| callback  | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function cancelGroupCallback(err) {
+   console.info("==========================>cancelGroupCallback=======================>");
+}
+
+var groupName = "GroupName";
+
+Notification.cancelGroup(groupName, cancelGroupCallback);
+```
+
+
+
+## Notification.cancelGroup(groupName: string)
+
+- Functionality
+
+  Cancels a notification group of the current application. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | ------ | ---- | -------------- |
+| groupName | Read-only| string | Yes| Name of the notification group to cancel.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+var groupName = "GroupName";
+Notification.cancelGroup(groupName).then(() => {
+	console.info("==========================>cancelGroupPromise=======================>");
+});
+```
+
+
+
+## Notification.removeGroupByBundle(bundle: BundleOption, groupName: string, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Removes a notification group for a specified bundle. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | --------------------- | ---- | ---------------------------- |
+| bundle    | Read-only| BundleOption          | Yes| Bundle information.|
+| groupName | Read-only| string                | Yes| Name of the notification group to remove.|
+| callback  | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function removeGroupByBundleCallback(err) {
+   console.info("==========================>removeGroupByBundleCallback=======================>");
+}
+
+var bundleOption = {bundle: "Bundle"};
+var groupName = "GroupName";
+
+Notification.removeGroupByBundle(bundleOption, groupName, removeGroupByBundleCallback);
+```
+
+
+
+## Notification.removeGroupByBundle(bundle: BundleOption, groupName: string)
+
+- Functionality
+
+  Removes a notification group for a specified bundle. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | ------------ | ---- | -------------- |
+| bundle    | Read-only| BundleOption | Yes| Bundle information.|
+| groupName | Read-only| string       | Yes| Name of the notification group to remove.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+var bundleOption = {bundle: "Bundle"};
+var groupName = "GroupName";
+Notification.removeGroupByBundle(bundleOption, groupName).then(() => {
+	console.info("==========================>removeGroupByBundlePromise=======================>");
+});
+```
+
+
+
+## Notification.setDoNotDisturbDate(date: DoNotDisturbDate, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Sets the DND time. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | ---------------------- |
+| date     | Read-only| DoNotDisturbDate      | Yes| DND time to set.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function setDoNotDisturbDateCallback(err) {
+   console.info("==========================>setDoNotDisturbDateCallback=======================>");
+}
+
+var doNotDisturbDate = {
+    type: notification.DoNotDisturbType.TYPE_ONCE,
+    begin: new Date(),
+    end: new Date(2021, 11, 15, 18, 0)
+}
+
+Notification.setDoNotDisturbDate(doNotDisturbDate, setDoNotDisturbDateCallback);
+```
+
+
+
+## Notification.setDoNotDisturbDate(date: DoNotDisturbDate)
+
+- Functionality
+
+  Sets the DND time. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---- | -------- | ---------------- | ---- | -------------- |
+| date | Read-only| DoNotDisturbDate | Yes| DND time to set.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+var doNotDisturbDate = {
+    type: notification.DoNotDisturbType.TYPE_ONCE,
+    begin: new Date(),
+    end: new Date(2021, 11, 15, 18, 0)
+}
+Notification.setDoNotDisturbDate(doNotDisturbDate).then(() => {
+	console.info("==========================>setDoNotDisturbDatePromise=======================>");
+});
+```
+
+
+
+## Notification.getDoNotDisturbDate(callback: AsyncCallback\<DoNotDisturbDate\>)
+
+- Functionality
+
+  Obtains the DND time. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------------------- | ---- | ---------------------- |
+| callback | Read-only| AsyncCallback\<DoNotDisturbDate\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function getDoNotDisturbDateCallback(err,data) {
+   console.info("==========================>getDoNotDisturbDateCallback=======================>");
+}
+
+Notification.getDoNotDisturbDate(getDoNotDisturbDateCallback);
+```
+
+
+
+## Notification.getDoNotDisturbDate()
+
+- Functionality
+
+  Obtains the DND time. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return value
+
+  Promise\<DoNotDisturbDate\>
+
+- Example
+
+```js
+Notification.getDoNotDisturbDate().then((data) => {
+	console.info("==========================>getDoNotDisturbDatePromise=======================>");
+});
+```
+
+
+
+## Notification.supportDoNotDisturbMode(callback: AsyncCallback\<boolean\>)
+
+- Functionality
+
+  Checks whether the DND mode is supported. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ------------------------ | ---- | -------------------------------- |
+| callback | Read-only| AsyncCallback\<boolean\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+function supportDoNotDisturbModeCallback(err,data) {
+   console.info("==========================>supportDoNotDisturbModeCallback=======================>");
+}
+
+Notification.supportDoNotDisturbMode(supportDoNotDisturbModeCallback);
+```
+
+
+
+## Notification.supportDoNotDisturbMode()
+
+- Functionality
+
+  Checks whether the DND mode is supported. This method uses a promise to return the result.
+
+- Parameters
+
+  None
+
+- Return value
+
+  Promise\<boolean\>
+
+- Example
+
+```js
+Notification.supportDoNotDisturbMode().then((data) => {
+	console.info("==========================>supportDoNotDisturbModePromise=======================>");
+});
+```
+
+
+
+## Notification.isSupportTemplate
+
+isSupportTemplate(templateName: string, callback: AsyncCallback\<boolean\>): void
+
+Checks whether a specified template exists. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Type| Mandatory| Description|
+| ------------ | ------------------------ | ---- | -------------------------- |
+| templateName | string                   | Yes| Template name.|
+| callback     | AsyncCallback\<boolean\> | Yes| Callback used to return the result.|
+
+- Example
+
+```javascript
+var templateName = 'process';
+function isSupportTemplateCallback(err, data) {
+    console.info("isSupportTemplateCallback");
+}
+
+Notification.isSupportTemplate(templateName, isSupportTemplateCallback);
+```
+
+
+
+## Notification.isSupportTemplate
+
+isSupportTemplate(templateName: string): Promise\<boolean\>
+
+Checks whether a specified template exists. This method uses a promise to return the result.
+
+- Parameters
+
+| Name| Type| Mandatory| Description|
+| ------------ | ------ | ---- | -------- |
+| templateName | string | Yes| Name|
+
+- Return value
+
+| Type| Description|
+| ------------------ | --------------- |
+| Promise\<boolean\> | Promise used to return the result.|
+
+- Example
+
+```javascript
+var templateName = 'process';
+
+Notification.isSupportTemplate(templateName).then((data) => {
+    console.info("isSupportTemplateCallback");
+});
+```
+
+
+
+## NotificationTemplate
+
+Describes the template information.
+
+| Name| Type| Readable| Writable| Description|
+| ---- | ---------------------- | ---- | ---- | -------- |
+| name | string                 | Yes| Yes| Template name.|
+| data | {[key:string]: Object} | Yes| Yes| Template data.|
+
+
+
+## WantAgent APIs
+
+## Modules to Import
+
+```js
+import WantAgent from '@ohos.wantAgent';
+```
+
+## WantAgent.getWantAgent(info: WantAgentInfo, callback: AsyncCallback\<WantAgent\>)
+
+- Functionality
+
+  Obtains a **WantAgent** object. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | -------------------------- | ---- | ----------------------- |
+| info     | Read-only| WantAgentInfo              | Yes| Information about the **WantAgent** object to obtain.|
+| callback | Read-only| AsyncCallback\<WantAgent\> | Yes| Callback used to return the result.|
+
+- WantAgentInfo
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------------- | -------- | ------------------------------- | ---- | ---------------------- |
+| wants          | Readable and writable| Array\<Want\>                   | Yes| Array of all **Want** objects.|
+| operationType  | Readable and writable| wantAgent.OperationType         | Yes| Type of the operation specified in a **Want** object.|
+| requestCode    | Readable and writable| number                          | Yes| Request code defined by the user.|
+| wantAgentFlags | Readable and writable| Array<wantAgent.WantAgentFlags> | No| Array of flags for using the **WantAgent** object.|
+| extraInfo      | Readable and writable| {[key: string]: any}            | No| Extra information.|
+
+- 
+  WantAgentFlags
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------------------- | -------- | ---- | ---- | ------------------------------------------------------------ |
+| ONE_TIME_FLAG       | Read-only| enum | No| The **WantAgent** object can be used only once.|
+| NO_BUILD_FLAG       | Read-only| enum | No| The **WantAgent** object does not exist and hence it is not created. In this case, **null** is returned.|
+| CANCEL_PRESENT_FLAG | Read-only| enum | No| The existing **WantAgent** object should be canceled before a new object is generated.|
+| UPDATE_PRESENT_FLAG | Read-only| enum | No| Extra data of the existing **WantAgent** object is replaced with that of the new object.|
+| CONSTANT_FLAG       | Read-only| enum | No| The **WantAgent** object is immutable.|
+
+- OperationType
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----------------- | -------- | ---- | ---- | ----------------------- |
+| UNKNOWN_TYPE      | Read-only| enum | No| Unknown operation.|
+| START_ABILITY     | Read-only| enum | No| Starts an ability with a UI.|
+| START_ABILITIES   | Read-only| enum | No| Starts multiple abilities with a UI.|
+| START_SERVICE     | Read-only| enum | No| Starts an ability without a UI.|
+| SEND_COMMON_EVENT | Read-only| enum | No| Sends a common event.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// getWantAgent callback
+function getWantAgentCallback(err, data) {
+	console.info("==========================>getWantAgentCallback=======================>");
+}
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback)
+```
+
+
+
+## WantAgent.getWantAgent(info: WantAgentInfo): Promise\<WantAgent\>
+
+- Functionality
+
+  Obtains a **WantAgent** object. This method uses a promise to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---- | -------- | ------------- | ---- | ------------- |
+| info | Read-only| WantAgentInfo | Yes| Information about the **WantAgent** object to obtain.|
+
+- Return value
+
+  Promise\<WantAgent\>
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo).then((data) => {
+	console.info("==========================>getWantAgentCallback=======================>");
+});
+```
+
+
+
+## WantAgent.getBundleName(agent: WantAgent, callback: AsyncCallback\<string\>)
+
+- Functionality
+
+  Obtains the bundle name of a **WantAgent** object. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ----------------------- | ---- | --------------------------------- |
+| agent    | Read-only| WantAgent               | Yes| **WantAgent** object whose bundle name is to be obtained.|
+| callback | Read-only| AsyncCallback\<string\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent;
+
+// getWantAgent callback
+function getWantAgentCallback(err, data) {
+	console.info("==========================>getWantAgentCallback=======================>");
+    if (err.code == 0) {
+    	wantAgent = data;
+    } else {
+        console.info('----getWantAgent failed!----');
+    }
+}
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback)
+
+// getBundleName callback
+function getBundleNameCallback(err, data) {
+	console.info("==========================>getBundleNameCallback=======================>");
+}
+WantAgent.getBundleName(wantAgent, getBundleNameCallback)
+```
+
+
+
+## WantAgent.getBundleName(agent: WantAgent): Promise\<string\>
+
+- Functionality
+
+  Obtains the bundle name of a **WantAgent** object. This method uses a promise to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----- | -------- | --------- | ---- | ------------- |
+| agent | Read-only| WantAgent | Yes| **WantAgent** object whose bundle name is to be obtained.|
+
+- Return value
+
+  Promise\<string\>
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent;
+
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo).then((data) => {
+	console.info("==========================>getWantAgentCallback=======================>");
+    wantAgent = data;
+});
+
+WantAgent.getBundleName(wantAgent).then((data) => {
+	console.info("==========================>getBundleNameCallback=======================>");
+});
+```
+
+
+
+## WantAgent.getUid(agent: WantAgent, callback: AsyncCallback\<number\>)
+
+- Functionality
+
+  Obtains the user ID of a **WantAgent** object. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | ----------------------- | ---- | ----------------------------------- |
+| agent    | Read-only| WantAgent               | Yes| **WantAgent** object whose user ID is to be obtained.|
+| callback | Read-only| AsyncCallback\<number\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent;
+
+// getWantAgent callback
+function getWantAgentCallback(err, data) {
+	console.info("==========================>getWantAgentCallback=======================>");
+    if (err.code == 0) {
+    	wantAgent = data;
+    } else {
+        console.info('----getWantAgent failed!----');
+    }
+}
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback)
+
+// getUid callback
+function getUidCallback(err, data) {
+	console.info("==========================>getUidCallback=======================>");
+}
+WantAgent.getUid(wantAgent, getUidCallback)
+```
+
+
+
+## WantAgent.getUid(agent: WantAgent): Promise\<number\>
+
+- Functionality
+
+  Obtains the user ID of a **WantAgent** object. This method uses a promise to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----- | -------- | --------- | ---- | ------------- |
+| agent | Read-only| WantAgent | Yes| **WantAgent** object whose user ID is to be obtained.|
+
+- Return value
+
+  Promise\<number\>
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent;
+
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo).then((data) => {
+	console.info("==========================>getWantAgentCallback=======================>");
+    wantAgent = data;
+});
+
+WantAgent.getUid(wantAgent).then((data) => {
+	console.info("==========================>getUidCallback=======================>");
+});
+```
+
+
+
+## WantAgent.getWant(agent: WantAgent, callback: AsyncCallback\<Want\>)
+
+- Functionality
+
+  Obtains the want in a **WantAgent** object. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | ------------------------------- |
+| agent    | Read-only| WantAgent             | Yes| **WantAgent** object.|
+| callback | Read-only| AsyncCallback\<Want\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent;
+
+// getWantAgent callback
+function getWantAgentCallback(err, data) {
+	console.info("==========================>getWantAgentCallback=======================>");
+    if (err.code == 0) {
+    	wantAgent = data;
+    } else {
+        console.info('----getWantAgent failed!----');
+    }
+}
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentWantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback)
+
+// getWant callback
+function getWantCallback(err, data) {
+	console.info("==========================>getWantCallback=======================>");
+}
+WantAgent.getWant(wantAgent, getWantCallback)
+```
+
+
+
+## WantAgent.getWant(agent: WantAgent): Promise\<Want\>
+
+- Functionality
+
+  Obtains the want in a **WantAgent** object. This method uses a promise to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----- | -------- | --------- | ---- | ------------- |
+| agent | Read-only| WantAgent | Yes| **WantAgent** object.|
+
+- Return value
+
+  Promise\<Want\>
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent;
+
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo).then((data) => {
+	console.info("==========================>getWantAgentCallback=======================>");
+    wantAgent = data;
+});
+
+WantAgent.getWant(wantAgent).then((data) => {
+	console.info("==========================>getWantCallback=======================>");
+});
+```
+
+
+
+## WantAgent.cancel(agent: WantAgent, callback: AsyncCallback\<void\>)
+
+- Functionality
+
+  Cancels a **WantAgent** object. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | --------------------- | ---- | --------------------------- |
+| agent    | Read-only| WantAgent             | Yes| **WantAgent** object to cancel.|
+| callback | Read-only| AsyncCallback\<void\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent;
+
+// getWantAgent callback
+function getWantAgentCallback(err, data) {
+	console.info("==========================>getWantAgentCallback=======================>");
+    if (err.code == 0) {
+    	wantAgent = data;
+    } else {
+        console.info('----getWantAgent failed!----');
+    }
+}
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback)
+
+// cancel callback
+function cancelCallback(err, data) {
+	console.info("==========================>cancelCallback=======================>");
+}
+WantAgent.cancel(wantAgent, cancelCallback)
+```
+
+
+
+## WantAgent.cancel(agent: WantAgent): Promise\<void\>
+
+- Functionality
+
+  Cancels a **WantAgent** object. This method uses a promise to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----- | -------- | --------- | ---- | ------------- |
+| agent | Read-only| WantAgent | Yes| **WantAgent** object to cancel.|
+
+- Return value
+
+  Promise\<void\>
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent;
+
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo).then((data) => {
+	console.info("==========================>getWantAgentCallback=======================>");
+    wantAgent = data;
+});
+
+WantAgent.cancel(wantAgent).then((data) => {
+	console.info("==========================>cancelCallback=======================>");
+});
+```
+
+
+
+## WantAgent.trigger(agent: WantAgent, triggerInfo: TriggerInfo, callback?: Callback\<CompleteData\>)
+
+- Functionality
+
+  Triggers a **WantAgent** object. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----------- | -------- | ----------------------------- | ---- | ------------------------------- |
+| agent       | Read-only| WantAgent                     | Yes| **WantAgent** object to trigger.|
+| triggerInfo | Read-only| TriggerInfo                   | Yes| **TriggerInfo** object.|
+| callback    | Read-only| AsyncCallback\<CompleteData\> | Yes| Callback used to return the result.|
+
+- TriggerInfo
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | -------------------- | ---- | ----------- |
+| code       | Readable and writable| number               | Yes| Result code.|
+| want       | Readable and writable| Want                 | No| Want.|
+| permission | Readable and writable| string               | No| Permission.|
+| extraInfo  | Readable and writable| {[key: string]: any} | No| Extra information.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent;
+
+// getWantAgent callback
+function getWantAgentCallback(err, data) {
+	console.info("==========================>getWantAgentCallback=======================>");
+    if (err.code == 0) {
+    	wantAgent = data;
+    } else {
+        console.info('----getWantAgent failed!----');
+    }
+}
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback)
+
+//Trigger callback
+function triggerCallback(err, data) {
+	console.info("==========================>triggerCallback=======================>");
+}
+
+var triggerInfo = {
+    code:0
+}
+WantAgent.trigger(wantAgent, triggerInfo, triggerCallback)
+```
+
+
+
+## WantAgent.equal(agent: WantAgent, otherAgent: WantAgent, callback: AsyncCallback\<boolean\>)
+
+- Functionality
+
+  Checks whether two **WantAgent** objects are equal. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ------------------------ | ---- | --------------------------------------- |
+| agent      | Read-only| WantAgent                | Yes| The first **WantAgent** object.|
+| otherAgent | Read-only| WantAgent                | Yes| The second **WantAgent** object.|
+| callback   | Read-only| AsyncCallback\<boolean\> | Yes| Callback used to return the result.|
+
+- Return value
+
+  void
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent1;
+var wantAgent2;
+
+// getWantAgent callback
+function getWantAgentCallback(err, data) {
+	console.info("==========================>getWantAgentCallback=======================>");
+    if (err.code == 0) {
+    	wantAgent1 = data;
+        wantAgent2 = data;
+    } else {
+        console.info('----getWantAgent failed!----');
+    }
+}
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback)
+
+// equal callback
+function equalCallback(err, data) {
+	console.info("==========================>equalCallback=======================>");
+}
+WantAgent.equal(wantAgent1, wantAgent2, equalCallback)
+```
+
+
+
+## WantAgent.equal(agent: WantAgent, otherAgent: WantAgent): Promise\<boolean\>
+
+- Functionality
+
+  Checks whether two **WantAgent** objects are equal. This method uses a promise to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | --------- | ---- | ------------- |
+| agent      | Read-only| WantAgent | Yes| The first **WantAgent** object.|
+| otherAgent | Read-only| WantAgent | Yes| The second **WantAgent** object.|
+
+- Return value
+
+  Promise\<boolean\>
+
+- Example
+
+```js
+import WantAgent from '@ohos.wantAgent';
+import { OperationType, WantAgentFlags } from '@ohos.wantagent';
+
+// WantAgent object
+var wantAgent1;
+var wantAgent2;
+
+// WantAgentInfo object
+var wantAgentInfo = {
+    wants: [
+        {
+            deviceId: "deviceId",
+            bundleName: "com.neu.setResultOnAbilityResultTest1",
+            abilityName: "com.example.test.MainAbility",
+            action: "action1",
+            entities: ["entity1"],
+            type: "MIMETYPE",
+            uri: "key={true,true,false}",
+            parameters:
+            {
+                mykey0: 2222,
+                mykey1: [1, 2, 3],
+                mykey2: "[1, 2, 3]",
+                mykey3: "ssssssssssssssssssssssssss",
+                mykey4: [false, true, false],
+                mykey5: ["qqqqq", "wwwwww", "aaaaaaaaaaaaaaaaa"],
+                mykey6: true,
+            }
+        }
+    ],
+    operationType: OperationType.START_ABILITIES,
+    requestCode: 0,
+    wantAgentFlags:[WantAgentFlags.UPDATE_PRESENT_FLAG]
+}
+
+WantAgent.getWantAgent(wantAgentInfo).then((data) => {
+	console.info("==========================>getWantAgentCallback=======================>");
+    wantAgent1 = data;
+    wantAgent2 = data;
+});
+
+WantAgent.equal(wantAgent1, wantAgent2).then((data) => {
+	console.info("==========================>equalCallback=======================>");
+});
+```
+
+
+
+#### 

en/application-dev/reference/apis/js-apis-particleAbility.md

+# ParticleAbility Module
+
+## Applicable Devices
+
+| API                                                          | Phone| Tablet| Smart TV| Wearable| Lite Wearable| SmartVision Device|
+| ------------------------------------------------------------ | ---- | ---- | ------ | -------- | -------------- | ------------ |
+| particleAbility.startAbility(parameter: StartAbilityParameter, callback: AsyncCallback\<void>: void | Yes| Yes| Yes| Yes| No| No|
+| particleAbility.startAbility(parameter: StartAbilityParameter): Promise\<number> | Yes| Yes| Yes| Yes| No| No|
+| particleAbility.terminateSelf(callback: AsyncCallback\<void>): void | Yes| Yes| Yes| Yes| No| No|
+| particleAbility.terminateSelf(): Promise\<void>              | Yes| Yes| Yes| Yes| No| No|
+| particleAbility.acquireDataAbilityHelper(uri: string): DataAbilityHelper | Yes| Yes| Yes| Yes| No| No|
+| particleAbility.connectAbility(request: Want, options:ConnectOptions): number | Yes| Yes| Yes| Yes| No| No|
+| particleAbility.disconnectAbility(connection: number, callback:AsyncCallback\<void>): void | Yes| Yes| Yes| Yes| No| No|
+| particleAbility.disconnectAbility(connection: number): Promise\<void> | Yes| Yes| Yes| Yes| No| No|
+
+## Constraints
+
+The ParticleAbility module is used to perform operations on abilities of the Data and Service types.
+
+## Modules to Import
+
+```js
+import particleAbility from '@ohos.ability.particleAbility'
+```
+
+## particleAbility.startAbility(parameter: StartAbilityParameter, callback: AsyncCallback\<void>: void
+
+- Functionality
+
+  Starts a Service ability. This method uses a callback to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | ------------------------------------------------------- | ---- | ----------------- |
+| parameter | Read-only| [StartAbilityParameter](#StartAbilityParameter)| Yes| Ability to start.|
+| callback  | Read-only| AsyncCallback\<void>                                    | Yes| Callback used to return the result.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import particleAbility from '@ohos.ability.particleAbility'
+particleAbility.startAbility(
+	{
+        want:
+        {
+            action: "action.system.home",
+            entities: ["entity.system.home"],
+            type: "MIMETYPE",
+            flags: FLAG_AUTH_READ_URI_PERMISSION;
+            deviceId: "",
+            bundleName: "com.example.Data",
+            abilityName: "com.example.Data.MainAbility",
+            uri:""
+        },
+    },
+    (error, result) => {
+		console.log('particleAbility startAbility errCode:' + error + 'result:' + result)
+    },
+)
+```
+
+
+
+## particleAbility.startAbility(parameter: StartAbilityParameter): Promise\<number>
+
+- Functionality
+Starts a Service ability. This method uses a promise to return the result.
+
+- Parameters
+
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| --------- | -------- | ------------------------------------------------------- | ---- | ----------------- |
+| parameter | Read-only| [StartAbilityParameter](#StartAbilityParameter)| Yes| Ability to start.|
+- Return values
+
+  Promise\<void>
+
+- Example
+
+```js
+import particleAbility from '@ohos.ability.particleAbility'
+particleAbility.startAbility(
+	{
+        want:
+        {
+            action: "action.system.home",
+            entities: ["entity.system.home"],
+            type: "MIMETYPE",
+            flags: FLAG_AUTH_READ_URI_PERMISSION;
+            deviceId: "",
+            bundleName: "com.example.Data",
+            abilityName: "com.example.Data.MainAbility",
+            uri:""
+        },
+    },
+).then((void) => {
+    console.info("particleAbility startAbility");
+});
+```
+
+
+
+## particleAbility.terminateSelf(callback: AsyncCallback\<void>): void
+
+- Functionality
+
+  Terminates this Service ability. This method uses a callback to return the result.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| -------- | -------- | -------------------- | ---- | -------------------- |
+| callback | Read-only| AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+- Return values
+
+  void
+
+- Example
+
+```js
+import particleAbility from '@ohos.ability.particleAbility'
+particleAbility.terminateSelf(
+    (error, result) => {
+		console.log('particleAbility terminateSelf errCode:' + error + 'result:' + result)
+    }
+)
+```
+
+
+
+## particleAbility.terminateSelf(): Promise\<void>
+
+- Functionality
+
+  Terminates this Service ability. This method uses a promise to return the result.
+
+- Return values
+
+  Promise\<void>
+
+- Example
+
+```js
+import particleAbility from '@ohos.ability.particleAbility'
+particleAbility.terminateSelf().then((void) => {
+	console.info("particleAbility terminateSelf");
+});
+```
+
+
+
+## particleAbility.acquireDataAbilityHelper(uri: string): DataAbilityHelper
+
+- Functionality
+
+  Obtains a **dataAbilityHelper** object.
+
+- Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| :--- | -------- | ------ | ---- | ---------------------- |
+| uri  | Read-only| string | Yes| URI of the file to open.|
+
+- Return values
+
+| Type| Description|
+| ----------------- | ------------------------------------------ |
+| DataAbilityHelper | A utility class used to help other abilities access a Data ability.|
+
+- Example
+
+```js
+import particleAbility from '@ohos.ability.particleAbility'     
+var uri = "";
+particleAbility.acquireDataAbilityHelper(uri)
+```
+
+## particleAbility.connectAbility(request: Want, options:ConnectOptions): number
+
+* Functionality
+
+  Connects this ability to a specific Service ability. This method uses a callback to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------- | -------- | -------------- | ---- | -------------------------- |
+| request | Read-only| Want           | Yes| Service ability to connect.|
+| options | Read-only| ConnectOptions | Yes| Callback used to return the result.|
+
+- ConnectOptions
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------------ | -------- | -------- | ---- | ---------------------------------- |
+| onConnect    | Read-only| function | Yes| Callback invoked when the connection is set up.|
+| onDisconnect | Read-only| function | Yes| Callback invoked when the connection is interrupted.|
+| onFailed     | Read-only| function | Yes| Callback invoked when the connection fails.|
+
+* Return values
+
+  Returns the unique identifier of the connection.
+
+* Example
+
+```javascript
+import particleAbility from '@ohos.ability.particleAbility'
+function onConnectCallback(element, remote){
+    console.log('ConnectAbility onConnect remote is proxy:' + (remote instanceof rpc.RemoteProxy));
+}
+function onDisconnectCallback(element){
+    console.log('ConnectAbility onDisconnect element.deviceId : ' + element.deviceId)
+}
+function onFailedCallback(code){
+    console.log('particleAbilityTest ConnectAbility onFailed errCode : ' + code)
+}
+var connId = particleAbility.connectAbility(
+    {
+        bundleName: "com.ix.ServiceAbility",
+        abilityName: "com.ix.ServiceAbility.ServiceAbilityA",
+    },
+    {
+        onConnect: onConnectCallback,
+        onDisconnect: onDisconnectCallback,
+        onFailed: onFailedCallback,
+    },
+);
+```
+
+## particleAbility.disconnectAbility(connection: number, callback:AsyncCallback\<void>): void
+
+* Functionality
+
+  Disconnects this ability from a specific Service ability. This method uses a callback to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ------------- | ---- | ------------------------------ |
+| connection | Read-only| number        | Yes| ID of the Service ability to disconnect.|
+| callback   | Read-only| AsyncCallback\<void> | Yes| Callback used to return the result.|
+
+* Return values
+
+  void
+
+* Example
+
+```javascript
+import particleAbility from '@ohos.ability.particleAbility'
+function onConnectCallback(element, remote){
+    console.log('ConnectAbility onConnect remote is proxy:' + (remote instanceof rpc.RemoteProxy));
+}
+function onDisconnectCallback(element){
+    console.log('ConnectAbility onDisconnect element.deviceId : ' + element.deviceId)
+}
+function onFailedCallback(code){
+    console.log('particleAbilityTest ConnectAbility onFailed errCode : ' + code)
+}
+var connId = particleAbility.connectAbility(
+    {
+        bundleName: "com.ix.ServiceAbility",
+        abilityName: "com.ix.ServiceAbility.ServiceAbilityA",
+    },
+    {
+        onConnect: onConnectCallback,
+        onDisconnect: onDisconnectCallback,
+        onFailed: onFailedCallback,
+    },
+);
+var result = particleAbility.disconnectAbility(connId,
+    (error,data) => {
+        console.log('particleAbilityTest DisConnectAbility result errCode : ' + error.code + " data: " + data)
+    },
+);
+```
+
+## particleAbility.disconnectAbility(connection: number): Promise\<void>
+
+* Functionality
+
+  Disconnects this ability from a specific Service ability. This method uses a promise to return the result.
+
+* Parameters
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ---------- | -------- | ------ | ---- | ------------------------------ |
+| connection | Read-only| number | Yes| ID of the Service ability to disconnect.|
+
+* Return values
+
+  Promise\<void>
+
+* Example
+
+```javascript
+import particleAbility from '@ohos.ability.particleAbility'
+function onConnectCallback(element, remote){
+    console.log('ConnectAbility onConnect remote is proxy:' + (remote instanceof rpc.RemoteProxy));
+}
+function onDisconnectCallback(element){
+    console.log('ConnectAbility onDisconnect element.deviceId : ' + element.deviceId)
+}
+function onFailedCallback(code){
+    console.log('particleAbilityTest ConnectAbility onFailed errCode : ' + code)
+}
+var connId = particleAbility.connectAbility(
+    {
+        bundleName: "com.ix.ServiceAbility",
+        abilityName: "com.ix.ServiceAbility.ServiceAbilityA",
+    },
+    {
+        onConnect: onConnectCallback,
+        onDisconnect: onDisconnectCallback,
+        onFailed: onFailedCallback,
+    },
+);
+var result = particleAbility.disconnectAbility(connId).then((void) => {
+	console.info("particleAbilityTest disconnectAbility");
+});
+```
+
+## StartAbilityParameter
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ------------------- | -------- | --------------------- | ---- | ------------------------------------------------------------ |
+| want                | Read-only| [Want](#Want)| Yes| Information about the ability to start.|
+| abilityStartSetting | Read-only| {[key: string]: any}  | No| Special attribute of the ability to start. This attribute can be passed in the method call.|
+
+## Want
+
+| Name| Readable/Writable| Type| Mandatory| Description|
+| ----------- | -------- | -------------------- | ---- | ------------------------------------------------------------ |
+| deviceId    | Read-only| string               | No| ID of the device running the ability to start.|
+| bundleName  | Read-only| string               | No| Bundle name of the ability to start. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.|
+| abilityName | Read-only| string               | No| Name of the ability to start. If both **bundleName** and **abilityName** are specified in a **Want** object, the **Want** object can directly match the specified ability.|
+| uri         | Read-only| string               | No| URI information to match. If **uri** is specified in a **Want** object, the **Want** object will match the specified URI information, including **scheme**, **schemeSpecificPart**, **authority**, and **path**.|
+| type        | Read-only| string               | No| MIME type, for example, **text/plain** or **image/***.|
+| flags       | Read-only| number               | No| How the **Want** object will be handled. By default, numbers are passed in. For details, see [flags](#flags).|
+| action      | Read-only| string               | No| Action option.|
+| parameters  | Read-only| {[key: string]: any} | No| List of parameters in the **Want** object.|
+| entities    | Read-only| Array\<string>       | No| List of entities.|
+
+## flags
+
+| Name| Value| Description|
+| ------------------------------------ | ---------- | ------------------------------------------------------------ |
+| FLAG_AUTH_READ_URI_PERMISSION        | 0x00000001 | Indicates the permission to read the URI.|
+| FLAG_AUTH_WRITE_URI_PERMISSION       | 0x00000002 | Indicates the permission to write the URI.|
+| FLAG_ABILITY_FORWARD_RESULT          | 0x00000004 | Returns the result to the ability.|
+| FLAG_ABILITY_CONTINUATION            | 0x00000008 | Indicates whether the ability on the local device can be migrated to a remote device.|
+| FLAG_NOT_OHOS_COMPONENT              | 0x00000010 | Indicates that a component does not belong to OHOS.|
+| FLAG_ABILITY_FORM_ENABLED            | 0x00000020 | Indicates whether to enable an ability.|
+| FLAG_AUTH_PERSISTABLE_URI_PERMISSION | 0x00000040 | Indicates the permission to make the URI persistent.|
+| FLAG_AUTH_PREFIX_URI_PERMISSION      | 0x00000080 | Indicates the permission to verify URIs by prefix matching.|
+| FLAG_ABILITYSLICE_MULTI_DEVICE       | 0x00000100 | Supports cross-device startup in a distributed scheduler.|
+| FLAG_START_FOREGROUND_ABILITY        | 0x00000200 | Indicates that the Service ability is started regardless of whether the host application has been started.|
+| FLAG_ABILITY_CONTINUATION_REVERSIBLE | 0x00000400 | Indicates that the migration is reversible.|
+| FLAG_INSTALL_ON_DEMAND               | 0x00000800 | Indicates that the specific ability will be installed if it has not been installed.|
+| FLAG_INSTALL_WITH_BACKGROUND_MODE    | 0x80000000 | Indicates that the specific ability will be installed in the background if it has not been installed.|
+| FLAG_ABILITY_CLEAR_MISSION           | 0x00008000 | Clears other operation missions. This flag can be set for the **Want** object passed to **ohos.app.Context#startAbility** and must be used together with **flag_ABILITY_NEW_MISSION**.|
+| FLAG_ABILITY_NEW_MISSION             | 0x10000000 | Creates a mission on the historical mission stack.|
+| FLAG_ABILITY_MISSION_TOP             | 0x20000000 | Starts the mission on the top of the existing mission stack; creates an ability instance if no mission exists.|
+
+## AbilityStartSetting
+
+Defines special attributes of an ability, for example, **featureAbility.AbilityStartSetting.BOUNDS_KEY**.
+
+The **AbilityStartSetting** attribute is an object defined as [key: string]: any. The key is a type of **AbilityStartSetting**, and the value is a type of **AbilityWindowConfiguration**.
+
+| Name| Value| Description|
+| --------------- | --------------- | -------------------------- |
+| BOUNDS_KEY      | "abilityBounds" | Ability window size.|
+| WINDOW_MODE_KEY | "windowMode"    | Ability window display mode.|
+| DISPLAY_ID_KEY  | "displayId"     | Display device ID.|
+
+## AbilityWindowConfiguration
+
+Defines the window display modes of a Page ability, for example, **featureAbility.AbilityWindowConfiguration.WINDOW_MODE_UNDEFINED**.
+
+| Name| Value| Description|
+| --------------------------- | ---- | ---------- |
+| WINDOW_MODE_UNDEFINED       | 0    | The Page ability is in an undefined window display mode.|
+| WINDOW_MODE_FULLSCREEN      | 1    | The Page ability is in full screen mode.|
+| WINDOW_MODE_SPLIT_PRIMARY   | 100  | The Page ability is displayed in the primary window when it is in split-screen mode.|
+| WINDOW_MODE_SPLIT_SECONDARY | 101  | The Page ability is displayed in the secondary window when it is in split-screen mode.|
+| WINDOW_MODE_FLOATING        | 102  | The Page ability is displayed in floating window mode.|