提交 b69a51a1 编写于 作者: W wusongqing

update docs against 6038

Signed-off-by: Nwusongqing <wusongqing@huawei.com>
上级 4da94a10
# AbilityManager
The **AbilityManager** module provides APIs for obtaining, adding, and modifying ability running information and state information.
> **NOTE**
>
> 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.
> The APIs of this module are system APIs and cannot be called by third-party applications.
# Modules to Import
```js
import AbilityManager from '@ohos.application.abilityManager'
```
## AbilityState
Enumerates the ability states.
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**System API**: This is a system API and cannot be called by third-party applications.
| Name| Value| Description|
| -------- | -------- | -------- |
| INITIAL | 0 | The ability is in the initial state.|
| FOREGROUND | 9 | The ability is in the foreground state. |
| BACKGROUND | 10 | The ability is in the background state. |
| FOREGROUNDING | 11 | The ability is in the foregrounding state. |
| BACKGROUNDING | 12 | The ability is in the backgrounding state. |
## updateConfiguration
updateConfiguration(config: Configuration, callback: AsyncCallback\<void>): void
Obtains the ability running information. This API uses an asynchronous callback to return the result.
**Permission required**: ohos.permission.UPDATE_CONFIGURATION
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name | Type | Mandatory | Description |
| --------- | ---------------------------------------- | ---- | -------------- |
| config | Configuration | Yes | New configuration.|
| callback | AsyncCallback\<void> | Yes | Callback used to return the result. |
**Example**
```js
import abilitymanager from '@ohos.application.abilityManager';
var config = {
language: 'chinese'
}
abilitymanager.updateConfiguration(config, () => {
console.log('------------ updateConfiguration -----------');
})
```
## updateConfiguration
updateConfiguration(config: Configuration): Promise\<void>
Updates the configuration. This API uses a promise to return the result.
**Permission required**: ohos.permission.UPDATE_CONFIGURATION
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name | Type | Mandatory | Description |
| --------- | ---------------------------------------- | ---- | -------------- |
| config | Configuration | Yes | New configuration.|
**Return value**
| Type | Description |
| ---------------------------------------- | ------- |
| Promise\<void> | Promise used to return the result. |
**Example**
```js
import abilitymanager from '@ohos.application.abilityManager';
var config = {
language: 'chinese'
}
abilitymanager.updateConfiguration(config).then(() => {
console.log('updateConfiguration success');
}).catch((err) => {
console.log('updateConfiguration fail');
})
```
## getAbilityRunningInfos
getAbilityRunningInfos(callback: AsyncCallback\<Array\<AbilityRunningInfo>>): void
Obtains the ability running information. This API uses an asynchronous callback to return the result.
**Required permissions**: ohos.permission.GET_RUNNING_INFO
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name | Type | Mandatory | Description |
| --------- | ---------------------------------------- | ---- | -------------- |
| callback | AsyncCallback\<Array\<AbilityRunningInfo>> | Yes | Callback used to return the result. |
**Example**
```js
import abilitymanager from '@ohos.application.abilityManager';
abilitymanager.getAbilityRunningInfos((err,data) => {
console.log("getAbilityRunningInfos err: " + err + " data: " + JSON.stringify(data));
});
```
## getAbilityRunningInfos
getAbilityRunningInfos(): Promise\<Array\<AbilityRunningInfo>>
Obtains the ability running information. This API uses a promise to return the result.
**Required permissions**: ohos.permission.GET_RUNNING_INFO
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Return value**
| Type | Description |
| ---------------------------------------- | ------- |
| Promise\<Array\<AbilityRunningInfo>> | Promise used to return the result. |
**Example**
```js
import abilitymanager from '@ohos.application.abilityManager';
abilitymanager.getAbilityRunningInfos().then((data) => {
console.log("getAbilityRunningInfos data: " + JSON.stringify(data))
}).catch((err) => {
console.log("getAbilityRunningInfos err: " + err)
});
```
## getExtensionRunningInfos<sup>9+</sup>
getExtensionRunningInfos(upperLimit: number, callback: AsyncCallback\<Array\<ExtensionRunningInfo>>): void
Obtains the extension running information. This API uses an asynchronous callback to return the result.
**Required permissions**: ohos.permission.GET_RUNNING_INFO
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name | Type | Mandatory | Description |
| --------- | ---------------------------------------- | ---- | -------------- |
| upperLimit | number | Yes| Maximum number of messages that can be obtained.|
| callback | AsyncCallback\<Array\<AbilityRunningInfo>> | Yes | Callback used to return the result. |
**Example**
```js
import abilitymanager from '@ohos.application.abilityManager';
var upperLimit = 0;
abilitymanager.getExtensionRunningInfos(upperLimit, (err,data) => {
console.log("getExtensionRunningInfos err: " + err + " data: " + JSON.stringify(data));
});
```
## getExtensionRunningInfos<sup>9+</sup>
getExtensionRunningInfos(upperLimit: number): Promise\<Array\<ExtensionRunningInfo>>
Obtains the extension running information. This API uses a promise to return the result.
**Required permissions**: ohos.permission.GET_RUNNING_INFO
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name | Type | Mandatory | Description |
| --------- | ---------------------------------------- | ---- | -------------- |
| upperLimit | number | Yes| Maximum number of messages that can be obtained.|
**Return value**
| Type | Description |
| ---------------------------------------- | ------- |
| Promise\<Array\<AbilityRunningInfo>> | Promise used to return the result. |
**Example**
```js
import abilitymanager from '@ohos.application.abilityManager';
var upperLimit = 0;
abilitymanager.getExtensionRunningInfos(upperLimit).then((data) => {
console.log("getAbilityRunningInfos data: " + JSON.stringify(data));
}).catch((err) => {
console.log("getAbilityRunningInfos err: " + err);
})
```
## getTopAbility<sup>9+</sup>
getTopAbility(callback: AsyncCallback\<ElementName>): void;
Obtains the top ability, which is the ability that has the window focus. This API uses an asynchronous callback to return the result.
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Parameters**
| Name | Type | Mandatory | Description |
| --------- | ---------------------------------------- | ---- | -------------- |
| callback | AsyncCallback\<ElementName> | Yes | Callback used to return the result. |
**Example**
```js
import abilitymanager from '@ohos.application.abilityManager';
abilitymanager.getTopAbility((err,data) => {
console.log("getTopAbility err: " + err + " data: " + JSON.stringify(data));
});
```
## getTopAbility<sup>9+</sup>
getTopAbility(): Promise\<ElementName>;
Obtains the top ability, which is the ability that has the window focus. This API uses a promise to return the result.
**System capability**: SystemCapability.Ability.AbilityRuntime.Core
**Return value**
| Type | Description |
| ---------------------------------------- | ------- |
| Promise\<ElementName>| Promise used to return the result. |
**Example**
```js
import abilitymanager from '@ohos.application.abilityManager';
abilitymanager.getTopAbility().then((data) => {
console.log("getTopAbility data: " + JSON.stringify(data));
}).catch((err) => {
console.log("getTopAbility err: " + err);
})
```
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