@ohos.app.ability.wantAgent (WantAgent)

The app.ability.WantAgent module provides APIs for creating and comparing WantAgent objects, and obtaining the user ID, Want, and bundle name of a WantAgent object. You are advised to use this module, since it will replace the @ohos.wantAgent module in the near future.

NOTE

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.

Modules to Import

import WantAgent from '@ohos.app.ability.wantAgent';

WantAgent.getWantAgent

getWantAgent(info: WantAgentInfo, callback: AsyncCallback<WantAgent>): void

Obtains a WantAgent object. This API uses an asynchronous callback to return the result. If the creation fails, a null WantAgent object is returned.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
info	WantAgentInfo	Yes	Information about the WantAgent object to obtain.
callback	AsyncCallback<WantAgent>	Yes	Callback used to return the WantAgent object.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.error(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed, error: ${JSON.stringify(err)}`);
}

WantAgent.getWantAgent

getWantAgent(info: WantAgentInfo): Promise<WantAgent>

Obtains a WantAgent object. This API uses a promise to return the result. If the creation fails, a null WantAgent object is returned.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
info	WantAgentInfo	Yes	Information about the WantAgent object to obtain.

Return value

Type	Description
Promise<WantAgent>	Promise used to return the WantAgent object.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

try {
    WantAgent.getWantAgent(wantAgentInfo).then((data) => {
        wantAgent = data;
    }).catch((err: BusinessError) => {
        console.error(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    });
} catch (err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.getBundleName

getBundleName(agent: WantAgent, callback: AsyncCallback<string>): void

Obtains the bundle name of a WantAgent object. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.
callback	AsyncCallback<string>	Yes	Callback used to return the bundle name.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.error(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    // getBundleName callback
    let getBundleNameCallback = (err: BusinessError, data: string) => {
        if(err) {
            console.error(`getBundleName failed! ${err.code} ${err.message}`);
        } else {
            console.info(`getBundleName ok! ${JSON.stringify(data)}`);
        }
    }
    try {
        WantAgent.getBundleName(wantAgent, getBundleNameCallback);
    } catch(err) {
        console.error(`getBundleName failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.getBundleName

getBundleName(agent: WantAgent): Promise<string>

Obtains the bundle name of a WantAgent object. This API uses a promise to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.

Return value

Type	Description
Promise<string>	Promise used to return the bundle name.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

 // WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.error(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    try {
        WantAgent.getBundleName(wantAgent).then((data)=>{
            console.info(`getBundleName ok! ${JSON.stringify(data)}`);
        }).catch((err: BusinessError)=>{
            console.error(`getBundleName failed! ${err.code} ${err.message}`);
        });
    } catch(err){
        console.error(`getBundleName failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.getUid

getUid(agent: WantAgent, callback: AsyncCallback<number>): void

Obtains the user ID of a WantAgent object. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.
callback	AsyncCallback<number>	Yes	Callback used to return the user ID.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.info(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    // getUid callback
    let getUidCallback = (err: BusinessError, data: number) => {
        if(err) {
            console.error(`getUid failed! ${err.code} ${err.message}`);
        } else {
            console.info(`getUid ok! ${JSON.stringify(data)}`);
        }
    }
    try {
        WantAgent.getUid(wantAgent, getUidCallback);
    } catch(err) {
        console.error(`getUid failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.getUid

getUid(agent: WantAgent): Promise<number>

Obtains the user ID of a WantAgent object. This API uses a promise to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.

Return value

Type	Description
Promise<number>	Promise used to return the user ID.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.info(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    try {
        WantAgent.getUid(wantAgent).then((data)=>{
            console.info(`getUid ok! ${JSON.stringify(data)}`);
        }).catch((err: BusinessError)=>{
            console.error(`getUid failed! ${err.code} ${err.message}`);
        });
    } catch(err){
        console.error(`getUid failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.getWant

getWant(agent: WantAgent, callback: AsyncCallback<Want>): void

Obtains the Want in a WantAgent object. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

System API: This is a system API and cannot be called by third-party applications.

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.
callback	AsyncCallback<Want>	Yes	Callback used to return the Want.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000015	Service timeout.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.info(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    // getWant callback
    let getWantCallback = (err: BusinessError, data: Want) => {
        if(err) {
            console.error(`getWant failed! ${err.code} ${err.message}`);
        } else {
            console.info(`getWant ok! ${JSON.stringify(data)}`);
        }
    }
    try {
        WantAgent.getWant(wantAgent, getWantCallback);
    } catch(err) {
        console.error(`getWant failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.getWant

getWant(agent: WantAgent): Promise<Want>

Obtains the Want in a WantAgent object. This API uses a promise to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

System API: This is a system API and cannot be called by third-party applications.

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.

Return value

Type	Description
Promise<Want>	Promise used to return the Want.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000015	Service timeout.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.info(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    try {
        WantAgent.getUid(wantAgent).then((data)=>{
            console.info(`getUid ok! ${JSON.stringify(data)}`);
        }).catch((err: BusinessError)=>{
            console.error(`getUid failed! ${err.code} ${err.message}`);
        });
    } catch(err){
        console.error(`getUid failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}}`);
}

WantAgent.cancel

cancel(agent: WantAgent, callback: AsyncCallback<void>): void

Cancels a WantAgent object. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.
callback	AsyncCallback<void>	Yes	Callback used to return the result.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.info(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    // cancel callback
    let cancelCallback = (err: BusinessError, data: void) => {
        if(err) {
            console.error(`cancel failed! ${err.code} ${err.message}`);
        } else {
            console.info(`cancel ok!`);
        }
    }
    try {
        WantAgent.cancel(wantAgent, cancelCallback);
    } catch(err) {
        console.error(`cancel failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.cancel

cancel(agent: WantAgent): Promise<void>

Cancels a WantAgent object. This API uses a promise to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.

Return value

Type	Description
Promise<void>	Promise used to return the result.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.info(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    try {
        WantAgent.cancel(wantAgent).then((data)=>{
            console.info('cancel ok!');
        }).catch((err: BusinessError)=>{
            console.error(`cancel failed! ${err.code} ${err.message}`);
        });
    } catch(err){
        console.error(`cancel failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.trigger

trigger(agent: WantAgent, triggerInfo: TriggerInfo, callback?: AsyncCallback<CompleteData>): void

Triggers a WantAgent object. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.
triggerInfo	TriggerInfo	Yes	TriggerInfo object.
callback	AsyncCallback<CompleteData>	No	Callback used to return the result.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// triggerInfo
let triggerInfo: WantAgent.TriggerInfo = {
    code: 0 // Custom result code.
};
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.info(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    // trigger callback
    let triggerCallback = (err: BusinessError, data: WantAgent.CompleteData) => {
        if(err) {
            console.error(`getUid failed! ${err.code} ${err.message}`);
        } else {
            console.info(`getUid ok! ${JSON.stringify(data)}`);
        }
    }
    try {
        WantAgent.trigger(wantAgent, triggerInfo, triggerCallback);
    } catch(err) {
        console.error(`getUid failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.equal

equal(agent: WantAgent, otherAgent: WantAgent, callback: AsyncCallback<boolean>): void

Checks whether two WantAgent objects are equal to determine whether the same operation is from the same application. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	The first WantAgent object.
otherAgent	WantAgent	Yes	The second WantAgent object.
callback	AsyncCallback<boolean>	Yes	Callback used to return the result.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent1: _WantAgent;
let wantAgent2: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.error(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent1 = data;
        wantAgent2 = data;
    }
    // equal callback
    let equalCallback = (err: BusinessError, data: boolean) => {
        if(err) {
            console.error(`equal failed! ${err.code} ${err.message}`);
        } else {
            console.info(`equal ok! ${JSON.stringify(data)}`);
        }
    }
    try {
        WantAgent.equal(wantAgent1,wantAgent2,equalCallback);
    } catch(err) {
        console.error(`equal failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.equal

equal(agent: WantAgent, otherAgent: WantAgent): Promise<boolean>

Checks whether two WantAgent objects are equal to determine whether the same operation is from the same application. This API uses a promise to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	The first WantAgent object.
otherAgent	WantAgent	Yes	The second WantAgent object.

Return value

Type	Description
Promise<boolean>	Promise used to return the result.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent1: _WantAgent;
let wantAgent2: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.error(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent1 = data;
        wantAgent2 = data;
    }
    try {
        WantAgent.equal(wantAgent1,wantAgent2).then((data)=>{
            console.info(`equal ok! ${JSON.stringify(data)}`);
        }).catch((err: BusinessError)=>{
            console.error(`equal failed! ${err.code} ${err.message}`);
        })
    } catch(err){
        console.error(`equal failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.getOperationType

getOperationType(agent: WantAgent, callback: AsyncCallback<number>): void

Obtains the operation type of a WantAgent object. This API uses an asynchronous callback to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.
callback	AsyncCallback<number>	Yes	Callback used to return the operation type.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000015	Service timeout.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.error(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    // getOperationTypeCallback callback
    let getOperationTypeCallback = (err: BusinessError, data: number) => {
        if(err) {
            console.error(`getOperationType failed! ${err.code} ${err.message}`);
        } else {
            console.info(`getOperationType ok! ${JSON.stringify(data)}`);
        }
    }
    try {
        WantAgent.getOperationType(wantAgent, getOperationTypeCallback);
    } catch(err) {
        console.error(`getOperationTypeCallback failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgent.getOperationType

getOperationType(agent: WantAgent): Promise<number>

Obtains the operation type of a WantAgent object. This API uses a promise to return the result.

System capability: SystemCapability.Ability.AbilityRuntime.Core

Parameters

Name	Type	Mandatory	Description
agent	WantAgent	Yes	Target WantAgent object.

Return value

Type	Description
Promise<number>	Promise used to return the operation type.

Error codes

ID	Error Message
16000007	Service busy, there are concurrent tasks, waiting for retry.
16000015	Service timeout.
16000151	Invalid wantagent object.

For details about the error codes, see Ability Error Codes.

Example

import WantAgent, { WantAgent as _WantAgent} from '@ohos.app.ability.wantAgent';
import Want from '@ohos.app.ability.Want';
import { BusinessError } from '@ohos.base';

// WantAgent object
let wantAgent: _WantAgent;
// WantAgentInfo object
let wantAgentInfo: WantAgent.WantAgentInfo = {
    wants: [
        {
            deviceId: 'deviceId',
            bundleName: 'com.example.myapplication',
            abilityName: 'EntryAbility',
            action: 'action1',
            entities: ['entity1'],
            type: 'MIMETYPE',
            uri: 'key={true,true,false}',
            parameters:
            {
                mykey0: 2222,
                mykey1: [1, 2, 3],
                mykey2: '[1, 2, 3]',
                mykey3: 'ssssssssssssssssssssssssss',
                mykey4: [false, true, false],
                mykey5: ['qqqqq', 'wwwwww', 'aaaaaaaaaaaaaaaaa'],
                mykey6: true,
            }
        } as Want
    ],
    operationType: WantAgent.OperationType.START_ABILITIES,
    requestCode: 0,
    wantAgentFlags:[WantAgent.WantAgentFlags.UPDATE_PRESENT_FLAG]
};

// getWantAgent callback
function getWantAgentCallback(err: BusinessError, data: _WantAgent) {
    if (err) {
        console.error(`getWantAgent failed, code: ${JSON.stringify(err.code)}, message: ${JSON.stringify(err.message)}`);
    } else {
        wantAgent = data;
    }
    try {
        WantAgent.getOperationType(wantAgent).then((data)=>{
            console.info(`getOperationType ok! ${JSON.stringify(data)}`);
        }).catch((err: BusinessError) => {
            console.error(`getOperationType failed! ${err.code} ${err.message}`);
        });
    } catch(err){
        console.error(`getOperationType failed! ${err.code} ${err.message}`);
    }
}
try {
    WantAgent.getWantAgent(wantAgentInfo, getWantAgentCallback);
} catch(err) {
    console.error(`getWantAgent failed! ${err.code} ${err.message}`);
}

WantAgentFlags

System capability: SystemCapability.Ability.AbilityRuntime.Core

Name	Value	Description
ONE_TIME_FLAG	0	The WantAgent object can be used only once.
NO_BUILD_FLAG	1	The WantAgent object does not exist and hence it is not created. In this case, null is returned.
CANCEL_PRESENT_FLAG	2	The existing WantAgent object should be canceled before a new object is generated.
UPDATE_PRESENT_FLAG	3	Extra information of the existing WantAgent object is replaced with that of the new object.
CONSTANT_FLAG	4	The WantAgent object is immutable.
REPLACE_ELEMENT	5	The element attribute in the current Want can be replaced by the element attribute in the Want passed in WantAgent.trigger(). This processing is not supported yet.
REPLACE_ACTION	6	The action attribute in the current Want can be replaced by the action attribute in the Want passed in WantAgent.trigger(). This processing is not supported yet.
REPLACE_URI	7	The uri attribute in the current Want can be replaced by the uri attribute in the Want passed in WantAgent.trigger(). This processing is not supported yet.
REPLACE_ENTITIES	8	The entities attribute in the current Want can be replaced by the entities attribute in the Want passed in WantAgent.trigger(). This processing is not supported yet.
REPLACE_BUNDLE	9	The bundleName attribute in the current Want can be replaced by the bundleName attribute in the Want passed in WantAgent.trigger(). This processing is not supported yet.

OperationType

System capability: SystemCapability.Ability.AbilityRuntime.Core

Name	Value	Description
UNKNOWN_TYPE	0	Unknown operation type.
START_ABILITY	1	Starts an ability with a UI.
START_ABILITIES	2	Starts multiple abilities with a UI.
START_SERVICE	3	Starts an ability without a UI.
SEND_COMMON_EVENT	4	Sends a common event.

CompleteData

System capability: SystemCapability.Ability.AbilityRuntime.Core

Name	Type	Read-only	Mandatory	Description
info	WantAgent	No	Yes	A triggered WantAgent object.
want	Want	No	Yes	An existing triggered Want.
finalCode	number	No	Yes	Request code that triggers the WantAgent object.
finalData	string	No	Yes	Final data collected by the common event.
extraInfo	Record<string, Object>	No	No	Extra information.