# AbilityDelegator AbilityDelegator提供添加用于监视指定ability的生命周期状态更改的AbilityMonitor对象的能力,包括对AbilityMonitor实例的添加、删除、等待ability到达OnCreate生命周期、设置等待时间等、获取指定ability的生命周期状态、获取当前应用顶部ability、启动指定ability等。 > **说明:** > > 本模块首批接口从API version 8开始支持。后续版本的新增接口,采用上角标单独标记接口的起始版本。 ## 使用说明 通过AbilityDelegatorRegistry中getAbilityDelegator方法获取。 ```js import AbilityDelegatorRegistry from '@ohos.application.abilityDelegatorRegistry' var abilityDelegator; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); ``` ## AbilityDelegator ### addAbilityMonitor9+ addAbilityMonitor(monitor: AbilityMonitor, callback: AsyncCallback\): void 添加AbilityMonitor实例(callback形式) **系统能力:**SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填说明 | 说明 | | -------- | ------------------------------------------------------------ | -------- | ------------------------------------------------------------ | | monitor | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor) | 是 | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor)实例 | | callback | AsyncCallback\ | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; function onAbilityCreateCallback(data) { console.info("onAbilityCreateCallback"); } var monitor = { abilityName: "abilityname", onAbilityCreate: onAbilityCreateCallback } abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.addAbilityMonitor(monitor, (err : any) => { console.info("addAbilityMonitor callback"); }); ``` ### addAbilityMonitor9+ addAbilityMonitor(monitor: AbilityMonitor): Promise\ 添加AbilityMonitor实例(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ------- | ------------------------------------------------------------ | ---- | ------------------------------------------------------------ | | monitor | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor) | 是 | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor)实例 | **返回值:** | 类型 | 说明 | | -------------- | ------------------- | | Promise\ | 以Promise形式返回。 | **示例:** ```js var abilityDelegator; function onAbilityCreateCallback(data) { console.info("onAbilityCreateCallback"); } var monitor = { abilityName: "abilityname", onAbilityCreate: onAbilityCreateCallback } abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.addAbilityMonitor(monitor).then(() => { console.info("addAbilityMonitor promise"); }); ``` ### removeAbilityMonitor9+ removeAbilityMonitor(monitor: AbilityMonitor, callback: AsyncCallback\): void 删除已经添加的AbilityMonitor实例(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | ------------------------------------------------------------ | ---- | ------------------------------------------------------------ | | monitor | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor) | 是 | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor)实例 | | callback | AsyncCallback\ | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; function onAbilityCreateCallback(data) { console.info("onAbilityCreateCallback"); } var monitor = { abilityName: "abilityname", onAbilityCreate: onAbilityCreateCallback } abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.removeAbilityMonitor(monitor, (err : any) => { console.info("removeAbilityMonitor callback"); }); ``` ### removeAbilityMonitor9+ removeAbilityMonitor(monitor: AbilityMonitor): Promise\ 删除已经添加的AbilityMonitor实例(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 名称 | 类型 | 必填 | 说明 | | ------- | ------------------------------------------------------------ | ---- | ------------------------------------------------------------ | | monitor | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor) | 是 | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor)实例 | **返回值:** | 类型 | 说明 | | -------------- | ------------------- | | Promise\ | 以Promise形式返回。 | - 示例 ```js var abilityDelegator; function onAbilityCreateCallback(data) { console.info("onAbilityCreateCallback"); } var monitor = { abilityName: "abilityname", onAbilityCreate: onAbilityCreateCallback } abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.removeAbilityMonitor(monitor).then(() => { console.info("removeAbilityMonitor promise"); }); ``` ### waitAbilityMonitor9+ waitAbilityMonitor(monitor: AbilityMonitor, callback: AsyncCallback\): void 等待与AbilityMonitor实例匹配的ability到达OnCreate生命周期,并返回ability实例(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | ------------------------------------------------------------ | ---- | ------------------------------------------------------------ | | monitor | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor) | 是 | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor)实例 | | callback | AsyncCallback\<[Ability](js-apis-application-ability.md#Ability)> | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; function onAbilityCreateCallback(data) { console.info("onAbilityCreateCallback"); } var monitor = { abilityName: "abilityname", onAbilityCreate: onAbilityCreateCallback } abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.waitAbilityMonitor(monitor, (err : any, data : any) => { console.info("waitAbilityMonitor callback"); }); ``` ### waitAbilityMonitor9+ waitAbilityMonitor(monitor: AbilityMonitor, timeout: number, callback: AsyncCallback\): void 设置等待时间,等待与AbilityMonitor实例匹配的ability到达OnCreate生命周期,并返回ability实例(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | ------------------------------------------------------------ | ---- | ------------------------------------------------------------ | | monitor | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor) | 是 | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor)实例 | | timeout | number | 是 | 最大等待时间,单位毫秒(ms) | | callback | AsyncCallback\<[Ability](js-apis-application-ability.md#Ability)> | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; var timeout = 100; function onAbilityCreateCallback(data) { console.info("onAbilityCreateCallback"); } var monitor = { abilityName: "abilityname", onAbilityCreate: onAbilityCreateCallback } abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.waitAbilityMonitor(monitor, timeout, (err : any, data : any) => { console.info("waitAbilityMonitor callback"); }); ``` ### waitAbilityMonitor9+ waitAbilityMonitor(monitor: AbilityMonitor, timeout?: number): Promise\ 设置等待时间,等待与AbilityMonitor实例匹配的ability到达OnCreate生命周期,并返回ability实例(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ------- | ------------------------------------------------------------ | ---- | ------------------------------------------------------------ | | monitor | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor) | 是 | [AbilityMonitor](js-apis-application-abilityMonitor.md#AbilityMonitor)实例 | | timeout | number | 否 | 最大等待时间,单位毫秒(ms) | **返回值:** | 类型 | 说明 | | ----------------------------------------------------------- | -------------------------- | | Promise\<[Ability](js-apis-application-ability.md#Ability)> | 以Promise形式返回Ability。 | **示例:** ```js var abilityDelegator; function onAbilityCreateCallback(data) { console.info("onAbilityCreateCallback"); } var monitor = { abilityName: "abilityname", onAbilityCreate: onAbilityCreateCallback } abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.waitAbilityMonitor(monitor).then((data : any) => { console.info("waitAbilityMonitor promise"); }); ``` ### getAppContext9+ getAppContext(): Context 获取应用Context **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **返回值:** | 类型 | 说明 | | ------------------------------------- | ------------------------------------------- | | [Context](js-apis-Context.md#Context) | 应用[Context](js-apis-Context.md#Context)。 | **示例:** ```js var abilityDelegator; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); var context = abilityDelegator.getAppContext(); ``` ### getAbilityState9+ getAbilityState(ability: Ability): number 获取指定ability的生命周期状态 **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ------- | ------------------------------------------------- | ---- | --------------- | | ability | [Ability](js-apis-application-ability.md#Ability) | 是 | 指定Ability对象 | **返回值:** | 类型 | 说明 | | ------ | ------------------------------------------------------------ | | number | 指定ability的生命周期状态。状态枚举值使用[AbilityLifecycleState](js-apis-abilityDelegatorRegistry.md#AbilityLifecycleState)。 | **示例:** ```js var abilityDelegator; var ability; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.getCurrentTopAbility((err : any, data : any) => { console.info("getCurrentTopAbility callback"); ability = data; var state = abilityDelegator.getAbilityState(ability); console.info("getAbilityState" + state); }); ``` ### getCurrentTopAbility9+ getCurrentTopAbility(callback: AsyncCallback\): void 获取当前应用顶部ability(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | ------------------------------------------------------------ | ---- | ------------------ | | callback | AsyncCallback\<[Ability](js-apis-application-ability.md#Ability)> | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; var ability; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.getCurrentTopAbility((err : any, data : any) => { console.info("getCurrentTopAbility callback"); ability = data; }); ``` ### getCurrentTopAbility9+ getCurrentTopAbility(): Promise\ 获取当前应用顶部ability(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **返回值:** | 类型 | 说明 | | ----------------------------------------------------------- | -------------------------------------- | | Promise\<[Ability](js-apis-application-ability.md#Ability)> | 以Promise形式返回当前应用顶部ability。 | **示例:** ```js var abilityDelegator; var ability; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.getCurrentTopAbility().then((data : any) => { console.info("getCurrentTopAbility promise"); ability = data; }); ``` ### startAbility9+ startAbility(want: Want, callback: AsyncCallback\): void 启动指定ability(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | -------------------------------------- | ---- | ------------------ | | want | [Want](js-apis-application-Want.md) | 是 | 启动Ability参数 | | callback | AsyncCallback\ | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; var want = { bundleName: "bundleName", abilityName: "abilityName" }; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.startAbility(want, (err : any, data : any) => { console.info("startAbility callback"); }); ``` ### startAbility9+ startAbility(want: Want): Promise\ 启动指定ability(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ------ | -------------------------------------- | ---- | --------------- | | want | [Want](js-apis-application-Want.md) | 是 | 启动Ability参数 | **返回值:** | 类型 | 说明 | | -------------- | ------------------- | | Promise\ | 以Promise形式返回。 | **示例:** ```js var abilityDelegator; var want = { bundleName: "bundleName", abilityName: "abilityName" }; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.startAbility(want).then((data: any) => { console.info("startAbility promise"); }); ``` ### doAbilityForeground9+ doAbilityForeground(ability: Ability, callback: AsyncCallback\): void 调度指定ability生命周期状态到Foreground状态(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | ----------------------- | ---- | ------------------------------------------------------- | | ability | Ability | 是 | 指定Ability对象 | | callback | AsyncCallback\ | 是 | 表示指定的回调方法
\- true:成功
\- false:失败 | **示例:** ```js var abilityDelegator; var ability; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.getCurrentTopAbility((err : any, data : any) => { console.info("getCurrentTopAbility callback"); ability = data; abilityDelegator.doAbilityForeground(ability, (err : any, data : any) => { console.info("doAbilityForeground callback"); }); }); ``` ### doAbilityForeground9+ doAbilityForeground(ability: Ability): Promise\ 调度指定ability生命周期状态到Foreground状态(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ------- | ------- | ---- | --------------- | | ability | Ability | 是 | 指定Ability对象 | **返回值:** | 类型 | 说明 | | ----------------- | ------------------------------------------------------------ | | Promise\ | 以Promise形式返回执行结果。
\- true:成功
\- false:失败 | **示例:** ```js var abilityDelegator; var ability; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.getCurrentTopAbility((err : any, data : any) => { console.info("getCurrentTopAbility callback"); ability = data; abilityDelegator.doAbilityForeground(ability).then((data : any) => { console.info("doAbilityForeground promise"); }); }); ``` ### doAbilityBackground9+ doAbilityBackground(ability: Ability, callback: AsyncCallback\): void 调度指定ability生命周期状态到Background状态(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | ----------------------- | ---- | ------------------------------------------------------- | | ability | Ability | 是 | 指定Ability对象 | | callback | AsyncCallback\ | 是 | 表示指定的回调方法
\- true:成功
\- false:失败 | **示例:** ```js var abilityDelegator; var ability; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.getCurrentTopAbility((err : any, data : any) => { console.info("getCurrentTopAbility callback"); ability = data; abilityDelegator.doAbilityBackground(ability, (err : any, data : any) => { console.info("doAbilityBackground callback"); }); }); ``` ### doAbilityBackground9+ doAbilityBackground(ability: Ability): Promise\ 调度指定ability生命周期状态到Background状态(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ------- | ------- | ---- | --------------- | | ability | Ability | 是 | 指定Ability对象 | **返回值:** | 类型 | 说明 | | ----------------- | ------------------------------------------------------------ | | Promise\ | 以Promise形式返回执行结果。
\- true:成功
\- false:失败 | **示例:** ```js var abilityDelegator; var ability; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.getCurrentTopAbility((err : any, data : any) => { console.info("getCurrentTopAbility callback"); ability = data; abilityDelegator.doAbilityBackground(ability).then((data : any) => { console.info("doAbilityBackground promise"); }); }); ``` ### printSync9+ printSync(msg: string): void 打印日志信息到单元测试终端控制台 **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ------ | ------ | ---- | ---------- | | msg | string | 是 | 日志字符串 | **示例:** ```js var abilityDelegator; var msg = "msg"; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.printSync(msg); ``` ### print9+ print(msg: string, callback: AsyncCallback\): void 打印日志信息到单元测试终端控制台(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | -------------------- | ---- | ------------------ | | msg | string | 是 | 日志字符串 | | callback | AsyncCallback\ | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; var msg = "msg"; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.print(msg, (err : any) => { console.info("print callback"); }); ``` ### print9+ print(msg: string): Promise\ 打印日志信息到单元测试终端控制台(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ------ | ------ | ---- | ---------- | | msg | string | 是 | 日志字符串 | **返回值:** | 类型 | 说明 | | -------------- | ------------------- | | Promise\ | 以Promise形式返回。 | **示例:** ```js var abilityDelegator; var msg = "msg"; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.print(msg).then(() => { console.info("print promise"); }); ``` ### executeShellCommand executeShellCommand(cmd: string, callback: AsyncCallback\): void 执行指定的shell命令(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | ------------------------------------------------------------ | ---- | ------------------ | | cmd | string | 是 | shell命令字符串 | | callback | AsyncCallback\<[ShellCmdResult](js-apis-application-shellCmdResult.md#ShellCmdResult)> | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; var cmd = "cmd"; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.executeShellCommand(cmd, (err : any, data : any) => { console.info("executeShellCommand callback"); }); ``` ### executeShellCommand executeShellCommand(cmd: string, timeoutSecs: number, callback: AsyncCallback\): void 指定超时时间,并执行指定的shell命令(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ----------- | ------------------------------------------------------------ | ---- | ----------------------------- | | cmd | string | 是 | shell命令字符串 | | timeoutSecs | number | 是 | 设定命令超时时间,单位秒(s) | | callback | AsyncCallback\<[ShellCmdResult](js-apis-application-shellCmdResult.md#ShellCmdResult)> | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; var cmd = "cmd"; var timeout = 100; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.executeShellCommand(cmd, timeout, (err : any, data : any) => { console.info("executeShellCommand callback"); }); ``` ### executeShellCommand executeShellCommand(cmd: string, timeoutSecs?: number): Promise\ 指定超时时间,并执行指定的shell命令(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ----------- | ------ | ---- | ----------------------------- | | cmd | string | 是 | shell命令字符串 | | timeoutSecs | number | 否 | 设定命令超时时间,单位秒(s) | **返回值:** | 类型 | 说明 | | ------------------------------------------------------------ | ------------------------------------------------------------ | | Promise\<[ShellCmdResult](js-apis-application-shellCmdResult.md#ShellCmdResult)> | 以Promise形式返回Shell命令执行结果[ShellCmdResult](js-apis-application-shellCmdResult.md#ShellCmdResult)对象。 | **示例:** ```js var abilityDelegator; var cmd = "cmd"; var timeout = 100; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.executeShellCommand(cmd, timeout).then((data : any) => { console.info("executeShellCommand promise"); }); ``` ### finishTest9+ finishTest(msg: string, code: number, callback: AsyncCallback\): void 结束测试并打印日志信息到单元测试终端控制台(callback形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | -------- | -------------------- | ---- | ------------------ | | msg | string | 是 | 日志字符串 | | code | number | 是 | 日志码 | | callback | AsyncCallback\ | 是 | 表示指定的回调方法 | **示例:** ```js var abilityDelegator; var msg = "msg"; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.finishTest(msg, 0, (err : any) => { console.info("finishTest callback"); }); ``` ### finishTest9+ finishTest(msg: string, code: number): Promise\ 结束测试并打印日志信息到单元测试终端控制台(promise形式) **系统能力:** SystemCapability.Ability.AbilityRuntime.Core **参数:** | 参数名 | 类型 | 必填 | 说明 | | ------ | ------ | ---- | ---------- | | msg | string | 是 | 日志字符串 | | code | number | 是 | 日志码 | **返回值:** | 类型 | 说明 | | -------------- | ------------------- | | Promise\ | 以Promise形式返回。 | **示例:** ```js var abilityDelegator; var msg = "msg"; abilityDelegator = AbilityDelegatorRegistry.getAbilityDelegator(); abilityDelegator.finishTest(msg, 0).then(() => { console.info("finishTest promise"); }); ```