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)
+    -   [DataUriUtils Module](js-apis-DataUriUtils.md)
+    -   [Context Module](js-apis-Context.md)
+- Event Notification
+    -   [CommonEvent Module](js-apis-commonEvent.md)
+    -   [Notification Module](js-apis-notification.md)
 -   Resource Management
     -   [Resource Manager](js-apis-resource-manager.md)
     -   [Internationalization \(intl\) ](js-apis-intl.md)
@@ -47,6 +55,7 @@
     -   [Animation](js-apis-basic-features-animator.md)
     -   [HiAppEvent](js-apis-hiappevent.md)
     -   [Performance Tracing](js-apis-bytrace.md)
+    -   [Fault Logger](js-apis-faultLogger.md)
 -   Language Base Class Library
     -   [Obtaining Process Information](js-apis-process.md)
     -   [URL String Parsing](js-apis-url.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-featureAbility.md

@@ -696,19 +696,19 @@ this.StartContinueAbility(remoteDeviceId); //remoteDeviceId is acquired from Dev
 
 | Name| Name| Description|
 | ------------------------------------ | ---------- | ------------------------------------------------------------ |
-| FLAG_AUTH_READ_URI_PERMISSION        | 0x00000001 | Permission to read the URI.|
-| FLAG_AUTH_WRITE_URI_PERMISSION       | 0x00000002 | Permission to write the URI.|
-| FLAG_ABILITY_FORWARD_RESULT          | 0x00000004 | Whether to return the result to the ability.|
-| FLAG_ABILITY_CONTINUATION            | 0x00000008 | Whether abilities on the local device can be migrated to a remote device.|
-| FLAG_NOT_OHOS_COMPONENT              | 0x00000010 | Whether a component belongs to OHOS.|
-| FLAG_ABILITY_FORM_ENABLED            | 0x00000020 | Whether to enable an ability.|
-| FLAG_AUTH_PERSISTABLE_URI_PERMISSION | 0x00000040 | Permission to make the URI persist.|
-| FLAG_AUTH_PREFIX_URI_PERMISSION      | 0x00000080 | Permission to authenticate prefix URI.|
-| FLAG_ABILITYSLICE_MULTI_DEVICE       | 0x00000100 | Support for the startup across multiple devices in a distributed scheduler.|
-| FLAG_START_FOREGROUND_ABILITY        | 0x00000200 | Functionality of using the Service template is enabled regardless of whether the host application is started.|
-| FLAG_ABILITY_CONTINUATION_REVERSIBLE | 0x00000400 | Whether the migration is reversible.|
-| FLAG_INSTALL_ON_DEMAND               | 0x00000800 | A demand for the installation of a specific function.|
-| FLAG_INSTALL_WITH_BACKGROUND_MODE    | 0x80000000 | A demand for the installation of a specific function in background mode.|
-| FLAG_ABILITY_CLEAR_MISSION           | 0x00008000 | An instruction for clearing other tasks. 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 | An instruction for creating a task on the history task stack.|
-| FLAG_ABILITY_MISSION_TOP             | 0x20000000 | An existing instance of the ability to start will be reused if it is already at the top of the task stack. Otherwise, a new ability instance is created.|
+| 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.|