> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.
**Want** is the basic communication component of the system.
| deviceId | Read only | string | No | ID of the device running the ability. |
| bundleName | Read only | string | No | Bundle name of the ability. 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. 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](js-apis-featureAbility.md#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. | |
> The initial APIs of this module are supported since API 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> 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.
@@ -77,18 +77,16 @@ Checks whether this application is running in a RAM constrained device. This API
| Type| Description|
| -------- | -------- |
| Promise<boolean> | Promise used to return whether the the application is running in a RAM constrained device. If the the application is running in a RAM constrained device, **true** will be returned; otherwise, **false** will be returned.|
| Promise<boolean> | Promise used to return whether the application is running in a RAM constrained device. If the application is running in a RAM constrained device, **true** will be returned; otherwise, **false** will be returned.|
@@ -103,17 +101,15 @@ Checks whether this application is running in a RAM constrained device. This API
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| callback | AsyncCallback<boolean> | No| Callback used to return whether the the application is running in a RAM constrained device. If the the application is running in a RAM constrained device, **true** will be returned; otherwise, **false** will be returned.|
| callback | AsyncCallback<boolean> | No| Callback used to return whether the application is running in a RAM constrained device. If the application is running in a RAM constrained device, **true** will be returned; otherwise, **false** will be returned.|
**Example**
```js
IsRamConstrainedDeviceCallBack(){
app.isRamConstrainedDevicePromise((err,data)=>{
console.log('startAbility result failed:'+JSON.stringify(err));
console.log('startAbility result success:'+JSON.stringify(data));
})
}
```
## appManager.getAppMemorySize
...
...
@@ -133,13 +129,11 @@ Obtains the memory size of this application. This API uses a promise to return t
**Example**
```js
GetAppMemorySize(){
app.getAppMemorySize().then((data)=>{
console.log('success:'+JSON.stringify(data));
}).catch((error)=>{
console.log('failed:'+JSON.stringify(error));
});
}
```
## appManager.getAppMemorySize
...
...
@@ -159,10 +153,65 @@ Obtains the memory size of this application. This API uses an asynchronous callb
**Example**
```js
GetAppMemorySizeCallBack(){
app.getAppMemorySize((err,data)=>{
console.log('startAbility result failed :'+JSON.stringify(err));
console.log('startAbility result success:'+JSON.stringify(data));
| obj | Object or string| No | Data to be displayed on the JS service widget. The value can be an object containing multiple key-value pairs or a string in JSON format.|
| obj | Object or string| No | Data to be displayed on the JS service widget. The value can be an object containing multiple key-value pairs or a string in JSON format. The image data is identified by "formImages", and the content is multiple key-value pairs, each of which consists of an image identifier and image file descriptor. The final format is {"formImages": {"key1": fd1, "key2": fd2}}.|
**Return value**
...
...
@@ -38,20 +38,20 @@ Creates a **FormBindingData** object.
| data | Object or string| Data to be displayed on the JS service widget. The value can be an object containing multiple key-value pairs or a string in JSON format.|
| data | Yes| No| Object | Yes| Data to be displayed on the JS service widget. The value can be an object containing multiple key-value pairs or a string in JSON format.|
Requests a continuous task from the system. This API uses an asynchronous callback to return the result. (This method is of API 7 and will be deprecated. Use the counterpart in API 8.)
Requests a continuous task from the system. This API uses an asynchronous callback to return the result. You are advised to use the new API [backgroundTaskManager.startBackgroundRunning](js-apis-backgroundTaskManager.md#backgroundtaskmanagerstartbackgroundrunning8).
Requests a continuous task from the system. This API uses a promise to return the result. (This method is of API 7 and will be deprecated. Use the counterpart in API 8.)
Requests a continuous task from the system. This API uses a promise to return the result. You are advised to use the new API [backgroundTaskManager.startBackgroundRunning](js-apis-backgroundTaskManager.md#backgroundtaskmanagerstartbackgroundrunning8-1).
Requests to cancel a continuous task from the system. This API uses an asynchronous callback to return the result. (This method is of API 7 and will be deprecated. Use the counterpart in API 8.)
Requests to cancel a continuous task from the system. This API uses an asynchronous callback to return the result. You are advised to use the new API [backgroundTaskManager.stopBackgroundRunning](js-apis-backgroundTaskManager.md#backgroundtaskmanagerstopbackgroundrunning8).
Requests to cancel a continuous task from the system. This API uses a promise to return the result. (This method is of API 7 and will be deprecated. Use the counterpart in API 8.)
Requests a continuous task from the system. This API uses a promise to return the result. You are advised to use the new API [backgroundTaskManager.stopBackgroundRunning](js-apis-backgroundTaskManager.md#backgroundtaskmanagerstopbackgroundrunning8-1).
> The initial APIs of this module are supported since API 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
Implements URI permission management.
...
...
@@ -11,11 +11,11 @@ Implements URI permission management.
```
import UriPermissionManager from '@@ohos.application.UriPermissionManager';
import uriPermissionManager from '@ohos.application.uriPermissionManager';
@@ -25,15 +25,16 @@ Checks whether an application has the permission specified by **flag** for an UR
SystemCapability.Ability.AbilityRuntime.Core
- Parameters
| Name| Type| Mandatory| Description|
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| uri | string | Yes| URI of a file, for example, **fileshare:///com.samples.filesharetest.FileShare/person/10**.|
| flag | wantConstant.Flags | Yes| Read or write permission on the file specified by the URI.|
| accessTokenId | number | Yes| Unique ID of an application, which is obtained through the **BundleManager** API.|
| callback | AsyncCallback<number> | Yes| Callback used to return the check result. The value **0** means that the application has the specified permission, and **-1** means the opposite.|
- Example
**Example**
```
let uri = "fileshare:///com.samples.filesharetest.FileShare/person/10"
@@ -53,19 +54,21 @@ Checks whether an application has the permission specified by **flag** for an UR
SystemCapability.Ability.AbilityRuntime.Core
- Parameters
| Name| Type| Mandatory| Description|
**Parameters**
| Name| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- |
| uri | string | Yes| URI of a file, for example, **fileshare:///com.samples.filesharetest.FileShare/person/10**.|
| flag | wantConstant.Flags | Yes| Read or write permission on the file specified by the URI.|
| accessTokenId | number | Yes| Unique ID of an application, which is obtained through the **BundleManager** API.|
- Return value
| Type| Description|
**Return value**
| Type| Description|
| -------- | -------- |
| Promise<number> | Promise used to return the check result. The value **0** means that the application has the specified permission, and **-1** means the opposite.|
- Example
**Example**
```
let uri = "fileshare:///com.samples.filesharetest.FileShare/person/10"
