add startAbilityAsCaller

Signed-off-by: Ndonglin <donglin9@huawei.com>
Change-Id: Iafd233423006139b8fd0c33768a64f4bfe26fe89

zh-cn/application-dev/reference/apis/js-apis-inner-application-serviceExtensionContext.md

@@ -734,6 +734,234 @@ startServiceExtensionAbilityWithAccount(want: Want, accountId: number): Promise\
   }
   ```
 
+## ServiceExtensionContext.startAbilityAsCaller<sup>10+<sup>
+
+starAbilityAsCaller(want: Want, callback: AsyncCallback<void>): void;
+
+使用设置的caller信息启动一个Ability，caller信息由want携带，在系统服务层识别，Ability可以在onCreate生命周期的want参数中获取到caller信息。使用该接口启动一个Ability时，want的caller信息不会被当前自身的应用信息覆盖，系统服务层可获取到初始caller的信息。使用callback异步回调。
+
+使用规则：
+ - 调用方应用位于后台时，使用该接口启动Ability需申请`ohos.permission.START_ABILITIES_FROM_BACKGROUND`权限
+ - 跨应用场景下，目标Ability的exported属性若配置为false，调用方应用需申请`ohos.permission.START_INVISIBLE_ABILITY`权限
+ - 组件启动规则详见：[组件启动规则（Stage模型）](../../application-models/component-startup-rules.md)
+
+**系统能力**：SystemCapability.Ability.AbilityRuntime.Core
+
+**系统API**: 此接口为系统接口，三方应用不支持调用。
+
+**参数：**
+
+| 参数名 | 类型 | 必填 | 说明 |
+| -------- | -------- | -------- | -------- |
+| want | [Want](js-apis-application-want.md)  | 是 | 启动Ability的want信息。 |
+| callback | AsyncCallback&lt;void&gt; | 是 | 回调函数。当启动Ability成功，err为undefined，否则为错误对象。 |
+
+**错误码：**
+
+| 错误码ID | 错误信息 |
+| ------- | -------------------------------- |
+| 16000001 | The specified ability does not exist. |
+| 16000002 | Incorrect ability type. |
+| 16000004 | Can not start invisible component. |
+| 16000005 | The specified process does not have the permission. |
+| 16000006 | Cross-user operations are not allowed. |
+| 16000008 | The crowdtesting application expires. |
+| 16000009 | An ability cannot be started or stopped in Wukong mode. |
+| 16000010 | The call with the continuation flag is forbidden.        |
+| 16000011 | The context does not exist.        |
+| 16000012 | The application is controlled.        |
+| 16000013 | The application is controlled by EDM.       |
+| 16000050 | Internal error. |
+| 16000053 | The ability is not on the top of the UI. |
+| 16000055 | Installation-free timed out. |
+| 16200001 | The caller has been released. |
+
+错误码详细介绍请参考[errcode-ability](../errorcodes/errorcode-ability.md)
+
+**示例：**
+
+```ts
+import extension from '@ohos.app.ability.ServiceExtensionAbility';
+import Want from '@ohos.app.ability.Want';
+
+export default class EntryAbility extends extension {
+  onCreate(want, launchParam) {
+    // want包含启动该应用的Caller信息
+    let localWant: Want = want;
+    localWant.bundleName = 'com.example.demo';
+    localWant.moduleName = 'entry';
+    localWant.abilityName = 'TestAbility';
+
+    // 使用启动方的Caller身份信息启动新Ability
+    this.context.startAbilityAsCaller(localWant, (err) => {
+      if (err && err.code != 0) {
+        console.error('startAbilityAsCaller failed, err:' + JSON.stringify(err));
+      } else {
+        console.log('startAbilityAsCaller success.');
+      }
+    })
+  }
+}
+
+```
+
+## UIAbiliServiceExtensionContexttyContext.startAbilityAsCaller<sup>10+<sup>
+
+startAbilityAsCaller(want: Want, options: StartOptions, callback: AsyncCallback<void>): void;
+
+使用设置的caller信息启动一个Ability，caller信息由want携带，在系统服务层识别，Ability可以在onCreate生命周期的want参数中获取到caller信息。使用该接口启动一个Ability时，want的caller信息不会被当前自身的应用信息覆盖，系统服务层可获取到初始caller的信息。使用callback异步回调。
+
+使用规则：
+ - 调用方应用位于后台时，使用该接口启动Ability需申请`ohos.permission.START_ABILITIES_FROM_BACKGROUND`权限
+ - 跨应用场景下，目标Ability的exported属性若配置为false，调用方应用需申请`ohos.permission.START_INVISIBLE_ABILITY`权限
+ - 组件启动规则详见：[组件启动规则（Stage模型）](../../application-models/component-startup-rules.md)
+
+**系统能力**：SystemCapability.Ability.AbilityRuntime.Core
+
+**系统API**: 此接口为系统接口，三方应用不支持调用。
+
+**参数：**
+
+| 参数名 | 类型 | 必填 | 说明 |
+| -------- | -------- | -------- | -------- |
+| want | [Want](js-apis-application-want.md)  | 是 | 启动Ability的want信息。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 是 | 启动Ability所携带的参数。 |
+| callback | AsyncCallback&lt;void&gt; | 是 | 回调函数。当启动Ability成功，err为undefined，否则为错误对象。 |
+
+**错误码：**
+
+| 错误码ID | 错误信息 |
+| ------- | -------------------------------- |
+| 16000001 | The specified ability does not exist. |
+| 16000002 | Incorrect ability type. |
+| 16000004 | Can not start invisible component. |
+| 16000005 | The specified process does not have the permission. |
+| 16000006 | Cross-user operations are not allowed. |
+| 16000008 | The crowdtesting application expires. |
+| 16000009 | An ability cannot be started or stopped in Wukong mode. |
+| 16000010 | The call with the continuation flag is forbidden.        |
+| 16000011 | The context does not exist.        |
+| 16000012 | The application is controlled.        |
+| 16000013 | The application is controlled by EDM.       |
+| 16000050 | Internal error. |
+| 16000053 | The ability is not on the top of the UI. |
+| 16000055 | Installation-free timed out. |
+| 16200001 | The caller has been released. |
+
+错误码详细介绍请参考[errcode-ability](../errorcodes/errorcode-ability.md)
+
+**示例：**
+
+```ts
+import extension from '@ohos.app.ability.ServiceExtensionAbility';
+import Want from '@ohos.app.ability.Want';
+
+export default class EntryAbility extends extension {
+  onCreate(want, launchParam) {
+    // want包含启动该应用的Caller信息
+    let localWant: Want = want;
+    localWant.bundleName = 'com.example.demo';
+    localWant.moduleName = 'entry';
+    localWant.abilityName = 'TestAbility';
+
+    let option: StartOptions = {
+      displayId: 0
+    }
+
+    // 使用启动方的Caller身份信息启动新Ability
+    this.context.startAbilityAsCaller(localWant, option, (err) => {
+      if (err && err.code != 0) {
+        console.error('startAbilityAsCaller failed, err:' + JSON.stringify(err));
+      } else {
+        console.log('startAbilityAsCaller success.');
+      }
+    })
+  }
+}
+
+```
+
+## ServiceExtensionContext.startAbilityAsCaller<sup>10+<sup>
+
+startAbilityAsCaller(want: Want, options?: StartOptions): Promise<void>;
+
+使用设置的caller信息启动一个Ability，caller信息由want携带，在系统服务层识别，Ability可以在onCreate生命周期的want参数中获取到caller信息。使用该接口启动一个Ability时，want的caller信息不会被当前自身的应用信息覆盖，系统服务层可获取到初始caller的信息。使用Promise异步回调。
+
+使用规则：
+ - 调用方应用位于后台时，使用该接口启动Ability需申请`ohos.permission.START_ABILITIES_FROM_BACKGROUND`权限
+ - 跨应用场景下，目标Ability的exported属性若配置为false，调用方应用需申请`ohos.permission.START_INVISIBLE_ABILITY`权限
+ - 组件启动规则详见：[组件启动规则（Stage模型）](../../application-models/component-startup-rules.md)
+
+**系统能力**：SystemCapability.Ability.AbilityRuntime.Core
+
+**系统API**: 此接口为系统接口，三方应用不支持调用。
+
+**参数：**
+
+| 参数名 | 类型 | 必填 | 说明 |
+| -------- | -------- | -------- | -------- |
+| want | [Want](js-apis-application-want.md)  | 是 | 启动Ability的want信息。 |
+| options | [StartOptions](js-apis-app-ability-startOptions.md) | 是 | 启动Ability所携带的参数。 |
+
+**返回值：**
+
+| 类型 | 说明 |
+| -------- | -------- |
+| Promise&lt;void&gt; | Promise对象。无返回结果的Promise对象。 |
+
+**错误码：**
+
+| 错误码ID | 错误信息 |
+| ------- | -------------------------------- |
+| 16000001 | The specified ability does not exist. |
+| 16000002 | Incorrect ability type. |
+| 16000004 | Can not start invisible component. |
+| 16000005 | The specified process does not have the permission. |
+| 16000006 | Cross-user operations are not allowed. |
+| 16000008 | The crowdtesting application expires. |
+| 16000009 | An ability cannot be started or stopped in Wukong mode. |
+| 16000010 | The call with the continuation flag is forbidden.        |
+| 16000011 | The context does not exist.        |
+| 16000012 | The application is controlled.        |
+| 16000013 | The application is controlled by EDM.       |
+| 16000050 | Internal error. |
+| 16000053 | The ability is not on the top of the UI. |
+| 16000055 | Installation-free timed out. |
+| 16200001 | The caller has been released. |
+
+错误码详细介绍请参考[errcode-ability](../errorcodes/errorcode-ability.md)
+
+**示例：**
+
+```ts
+import extension from '@ohos.app.ability.ServiceExtensionAbility';
+import Want from '@ohos.app.ability.Want';
+
+export default class EntryAbility extends extension {
+  onCreate(want, launchParam) {
+    // want包含启动该应用的Caller信息
+    let localWant: Want = want;
+    localWant.bundleName = 'com.example.demo';
+    localWant.moduleName = 'entry';
+    localWant.abilityName = 'TestAbility';
+
+    let option: StartOptions = {
+      displayId: 0
+    }
+
+    // 使用启动方的Caller身份信息启动新Ability
+    this.context.startAbilityAsCaller(localWant, option)
+      .then(() => {
+        console.log('startAbilityAsCaller success.');
+      })
+      .catch((err) => {
+        console.error('startAbilityAsCaller failed, err:' + JSON.stringify(err));
+      })
+  }
+}
+
+```
+
 ## ServiceExtensionContext.stopServiceExtensionAbility
 
 stopServiceExtensionAbility(want: Want, callback: AsyncCallback\<void>): void;