harmony 鸿蒙@ohos.continuation.continuationManager (continuationManager)

2025-06-12
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@ohos.continuation.continuationManager (continuationManager)

The continuationManager module provides the continuation management entry. You can use the APIs of this module to connect to and cancel the continuation management service, subscribe to and unsubscribe from device connection events, start the device selection module, and update the device connection state.

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.

Modules to Import

import { continuationManager } from '@kit.AbilityKit';

continuationManager.register^(deprecated)

Registers the continuation management service and obtains a token. This API does not involve any filter parameters and uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use registerContinuation instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
callback	AsyncCallback<number>	Yes	Callback used to return the token generated after the continuation management service is connected.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = -1;
  continuationManager.register((err, data) => {
    if (err.code != 0) {
      console.error('register failed, cause: ' + JSON.stringify(err));
      return;
    }
    console.info('register finished, ' + JSON.stringify(data));
    token = data;
  });

continuationManager.register^(deprecated)

Registers the continuation management service and obtains a token. This API uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use registerContinuation instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
options	ContinuationExtraParams	Yes	Extra parameters used to filter the list of available devices.
callback	AsyncCallback<number>	Yes	Callback used to return the token generated after the continuation management service is connected.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = -1;
  continuationManager.register(
    {
      deviceType: ["00E"]
    },
    (err, data) => {
      if (err.code != 0) {
        console.error('register failed, cause: ' + JSON.stringify(err));
        return;
      }
      console.info('register finished, ' + JSON.stringify(data));
      token = data;
  });

continuationManager.register^(deprecated)

Registers the continuation management service and obtains a token. This API uses a promise to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use registerContinuation instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
options	ContinuationExtraParams	No	Extra parameters used to filter the list of available devices. This parameter can be null.

Return value

Type	Description
Promise<number>	Promise used to return the token generated after the continuation management service is connected.

Example

  import { continuationManager } from '@kit.AbilityKit';
  import { BusinessError } from '@kit.BasicServicesKit';
  
  let token: number = -1;
  continuationManager.register(
    { deviceType: ["00E"] }).then((data) => {
      console.info('register finished, ' + JSON.stringify(data));
      token = data;
    }).catch((err: BusinessError) => {
      console.error('register failed, cause: ' + JSON.stringify(err));
  });

continuationManager.registerContinuation⁹⁺

registerContinuation(callback: AsyncCallback<number>): void

Registers the continuation management service and obtains a token. This API does not involve any filter parameters and uses an asynchronous callback to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
callback	AsyncCallback<number>	Yes	Callback used to return the token generated after the continuation management service is connected.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600003	The number of token registration times has reached the upper limit.

Example

  import { continuationManager } from '@kit.AbilityKit';
  
  let token: number = -1;
  try {
    continuationManager.registerContinuation((err, data) => {
      if (err.code != 0) {
        console.error('registerContinuation failed, cause: ' + JSON.stringify(err));
        return;
      }
      console.info('registerContinuation finished, ' + JSON.stringify(data));
      token = data;
    });
  } catch (err) {
    console.error('registerContinuation failed, cause: ' + JSON.stringify(err));
  }

continuationManager.registerContinuation⁹⁺

registerContinuation(options: ContinuationExtraParams, callback: AsyncCallback<number>): void

Registers the continuation management service and obtains a token. This API uses an asynchronous callback to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
options	ContinuationExtraParams	Yes	Extra parameters used to filter the list of available devices.
callback	AsyncCallback<number>	Yes	Callback used to return the token generated after the continuation management service is connected.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600003	The number of token registration times has reached the upper limit.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = -1;
  try {
    continuationManager.registerContinuation(
      {
        deviceType: ["00E"]
      },
      (err, data) => {
        if (err.code != 0) {
          console.error('registerContinuation failed, cause: ' + JSON.stringify(err));
          return;
        }
        console.info('registerContinuation finished, ' + JSON.stringify(data));
        token = data;
    });
  } catch (err) {
    console.error('registerContinuation failed, cause: ' + JSON.stringify(err));
  }

continuationManager.registerContinuation⁹⁺

registerContinuation(options?: ContinuationExtraParams): Promise<number>

Registers the continuation management service and obtains a token. This API uses a promise to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
options	ContinuationExtraParams	No	Extra parameters used to filter the list of available devices. This parameter can be null.

Return value

Type	Description
Promise<number>	Promise used to return the token generated after the continuation management service is connected.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Incorrect parameter types; 2. Parameter verification failed.
16600001	The system ability works abnormally.
16600003	The number of token registration times has reached the upper limit.

Example

  import { continuationManager } from '@kit.AbilityKit';
  import { BusinessError } from '@kit.BasicServicesKit';

  let token: number = -1;
  try {
    continuationManager.registerContinuation(
      {
        deviceType: ["00E"]
      }).then((data) => {
        console.info('registerContinuation finished, ' + JSON.stringify(data));
        token = data;
      }).catch((err: BusinessError) => {
        console.error('registerContinuation failed, cause: ' + JSON.stringify(err));
    });
  } catch (err) {
    console.error('registerContinuation failed, cause: ' + JSON.stringify(err));
  }

continuationManager.on(‘deviceConnect’)^(deprecated)

on(type: ‘deviceConnect’, callback: Callback<ContinuationResult>): void

Subscribes to device connection events. This API uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use on instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
type	string	Yes	Event type. The value is fixed at deviceConnect.
callback	Callback<ContinuationResult>	Yes	Callback invoked when a device is selected from the device list provided by the device selection module. This callback returns the device ID, type, and name.

Example

  import { continuationManager } from '@kit.AbilityKit';

  continuationManager.on("deviceConnect", (data) => {
    console.info('onDeviceConnect deviceId: ' + JSON.stringify(data.id));
    console.info('onDeviceConnect deviceType: ' + JSON.stringify(data.type));
    console.info('onDeviceConnect deviceName: ' + JSON.stringify(data.name));
  });

continuationManager.on(‘deviceDisconnect’)^(deprecated)

on(type: ‘deviceDisconnect’, callback: Callback<string>): void

Subscribes to device disconnection events. This API uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use on instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
type	string	Yes	Event type. The value is fixed at deviceDisconnect.
callback	Callback<string>	Yes	Callback invoked when a device is unselected from the device list provided by the device selection module. This callback returns the device ID.

Example

  import { continuationManager } from '@kit.AbilityKit';

  continuationManager.on("deviceDisconnect", (data) => {
    console.info('onDeviceDisconnect deviceId: ' + JSON.stringify(data));
  });

continuationManager.off(‘deviceConnect’)^(deprecated)

off(type: ‘deviceConnect’, callback?: Callback<ContinuationResult>): void

Unsubscribes from device connection events. This API uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use off instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
type	string	Yes	Event type. The value is fixed at deviceConnect.
callback	Callback<ContinuationResult>	No	Callback invoked when a device is selected from the device list provided by the device selection module. This callback returns the device ID, type, and name.

Example

  import { continuationManager } from '@kit.AbilityKit';

  continuationManager.off("deviceConnect", (data) => {
    console.info('onDeviceConnect deviceId: ' + JSON.stringify(data.id));
    console.info('onDeviceConnect deviceType: ' + JSON.stringify(data.type));
    console.info('onDeviceConnect deviceName: ' + JSON.stringify(data.name));
  });

continuationManager.off(‘deviceDisconnect’)^(deprecated)

off(type: ‘deviceDisconnect’, callback?: Callback<string>): void

Unsubscribes from device disconnection events. This API uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use off instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
type	string	Yes	Event type. The value is fixed at deviceDisconnect.
callback	Callback<string>	No	Callback invoked when a device is unselected from the device list provided by the device selection module. This callback returns the device ID.

Example

  import { continuationManager } from '@kit.AbilityKit';

  continuationManager.off("deviceDisconnect", (data) => {
    console.info('onDeviceDisconnect deviceId: ' + JSON.stringify(data));
  });

continuationManager.on(‘deviceSelected’)⁹⁺

on(type: ‘deviceSelected’, token: number, callback: Callback<Array<ContinuationResult>>): void

Subscribes to device connection events. This API uses an asynchronous callback to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
type	string	Yes	Event type. The value is fixed at deviceSelected.
token	number	Yes	Token obtained after the registration of the continuation management service.
callback	Callback<Array<ContinuationResult>>	Yes	Callback invoked when a device is selected from the device list provided by the device selection module. This callback returns the device ID, type, and name.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.
16600004	The specified callback has been registered.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = 1;
  try {
    continuationManager.on("deviceSelected", token, (data) => {
      console.info('onDeviceSelected len: ' + data.length);
      for (let i = 0; i < data.length; i++) {
        console.info('onDeviceSelected deviceId: ' + JSON.stringify(data[i].id));
        console.info('onDeviceSelected deviceType: ' + JSON.stringify(data[i].type));
        console.info('onDeviceSelected deviceName: ' + JSON.stringify(data[i].name));
      }
    });
  } catch (err) {
    console.error('on failed, cause: ' + JSON.stringify(err));
  }

continuationManager.on(‘deviceUnselected’)⁹⁺

on(type: ‘deviceUnselected’, token: number, callback: Callback<Array<ContinuationResult>>): void

Subscribes to device disconnection events. This API uses an asynchronous callback to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
type	string	Yes	Event type. The value is fixed at deviceUnselected.
token	number	Yes	Token obtained after the registration of the continuation management service.
callback	Callback<Array<ContinuationResult>>	Yes	Callback invoked when a device is unselected from the device list provided by the device selection module. This callback returns the device ID, type, and name.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.
16600004	The specified callback has been registered.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = 1;
  try {
    continuationManager.on("deviceUnselected", token, (data) => {
      console.info('onDeviceUnselected len: ' + data.length);
      for (let i = 0; i < data.length; i++) {
        console.info('onDeviceUnselected deviceId: ' + JSON.stringify(data[i].id));
        console.info('onDeviceUnselected deviceType: ' + JSON.stringify(data[i].type));
        console.info('onDeviceUnselected deviceName: ' + JSON.stringify(data[i].name));
      }
      console.info('onDeviceUnselected finished.');
    });
  } catch (err) {
    console.error('on failed, cause: ' + JSON.stringify(err));
  }

continuationManager.off(‘deviceSelected’)⁹⁺

off(type: ‘deviceSelected’, token: number): void

Unsubscribes from device connection events.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
type	string	Yes	Event type. The value is fixed at deviceSelected.
token	number	Yes	Token obtained after the registration of the continuation management service.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.
16600004	The specified callback has been registered.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = 1;
  try {
    continuationManager.off("deviceSelected", token);
  } catch (err) {
    console.error('off failed, cause: ' + JSON.stringify(err));
  }

continuationManager.off(‘deviceUnselected’)⁹⁺

off(type: ‘deviceUnselected’, token: number): void

Unsubscribes from device disconnection events.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
type	string	Yes	Event type. The value is fixed at deviceUnselected.
token	number	Yes	Token obtained after the registration of the continuation management service.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.
16600004	The specified callback has been registered.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = 1;
  try {
    continuationManager.off("deviceUnselected", token);
  } catch (err) {
    console.error('off failed, cause: ' + JSON.stringify(err));
  }

continuationManager.startDeviceManager^(deprecated)

startDeviceManager(token: number, callback: AsyncCallback<void>): void

Starts the device selection module to show the list of available devices on the network. This API does not involve any filter parameters and uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use startContinuationDeviceManager instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
callback	AsyncCallback<void>	Yes	Callback used to return the result. If the module is started, err is undefined; otherwise, err is an error object.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = 1;
  continuationManager.startDeviceManager(token, (err) => {
    if (err.code != 0) {
      console.error('startDeviceManager failed, cause: ' + JSON.stringify(err));
      return;
    }
    console.info('startDeviceManager finished. ');
  });

continuationManager.startDeviceManager^(deprecated)

startDeviceManager(token: number, options: ContinuationExtraParams, callback: AsyncCallback<void>): void

Starts the device selection module to show the list of available devices on the network. This API uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use startContinuationDeviceManager instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
options	ContinuationExtraParams	Yes	Extra parameters used to filter the list of available devices.
callback	AsyncCallback<void>	Yes	Callback used to return the result. If the module is started, err is undefined; otherwise, err is an error object.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = 1;
  continuationManager.startDeviceManager(
    token,
    {
      deviceType: ["00E"]
    },
    (err) => {
      if (err.code != 0) {
        console.error('startDeviceManager failed, cause: ' + JSON.stringify(err));
        return;
      }
      console.info('startDeviceManager finished. ');
  });

continuationManager.startDeviceManager^(deprecated)

startDeviceManager(token: number, options?: ContinuationExtraParams): Promise<void>

Starts the device selection module to show the list of available devices on the network. This API uses a promise to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use startContinuationDeviceManager instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
options	ContinuationExtraParams	No	Extra parameters used to filter the list of available devices. This parameter can be null.

Return value

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

Example

  import { continuationManager } from '@kit.AbilityKit';
  import { BusinessError } from '@kit.BasicServicesKit';

  let token: number = -1;
  continuationManager.startDeviceManager(
    token,
    {
      deviceType: ["00E"]
    }).then(() => {
      console.info('startDeviceManager finished. ');
    }).catch((err: BusinessError) => {
      console.error('startDeviceManager failed, cause: ' + JSON.stringify(err));
  });

continuationManager.startContinuationDeviceManager⁹⁺

startContinuationDeviceManager(token: number, callback: AsyncCallback<void>): void

Starts the device selection module to show the list of available devices on the network. This API does not involve any filter parameters and uses an asynchronous callback to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
callback	AsyncCallback<void>	Yes	Callback used to return the result. If the module is started, err is undefined; otherwise, err is an error object.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = -1;
  try {
    continuationManager.startContinuationDeviceManager(token, (err) => {
      if (err.code != 0) {
        console.error('startContinuationDeviceManager failed, cause: ' + JSON.stringify(err));
        return;
      }
      console.info('startContinuationDeviceManager finished. ');
    });
  } catch (err) {
    console.error('startContinuationDeviceManager failed, cause: ' + JSON.stringify(err));
  }

continuationManager.startContinuationDeviceManager⁹⁺

startContinuationDeviceManager(token: number, options: ContinuationExtraParams, callback: AsyncCallback<void>): void

Starts the device selection module to show the list of available devices on the network. This API uses an asynchronous callback to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
options	ContinuationExtraParams	Yes	Extra parameters used to filter the list of available devices.
callback	AsyncCallback<void>	Yes	Callback used to return the result. If the module is started, err is undefined; otherwise, err is an error object.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = -1;
  try {
    continuationManager.startContinuationDeviceManager(
      token,
      {
        deviceType: ["00E"]
      },
      (err) => {
        if (err.code != 0) {
          console.error('startContinuationDeviceManager failed, cause: ' + JSON.stringify(err));
          return;
        }
        console.info('startContinuationDeviceManager finished. ');
    });
  } catch (err) {
    console.error('startContinuationDeviceManager failed, cause: ' + JSON.stringify(err));
  }

continuationManager.startContinuationDeviceManager⁹⁺

startContinuationDeviceManager(token: number, options?: ContinuationExtraParams): Promise<void>

Starts the device selection module to show the list of available devices on the network. This API uses a promise to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
options	ContinuationExtraParams	No	Extra parameters used to filter the list of available devices. This parameter can be null.

Return value

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

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Incorrect parameter types; 2. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.

Example

  import { continuationManager } from '@kit.AbilityKit';
  import { BusinessError } from '@kit.BasicServicesKit';

  let token: number = -1;
  try {
    continuationManager.startContinuationDeviceManager(
      token,
      {
        deviceType: ["00E"]
      }).then(() => {
        console.info('startContinuationDeviceManager finished. ');
      }).catch((err: BusinessError) => {
        console.error('startContinuationDeviceManager failed, cause: ' + JSON.stringify(err));
      });
  } catch (err) {
    console.error('startContinuationDeviceManager failed, cause: ' + JSON.stringify(err));
  }

continuationManager.updateConnectStatus^(deprecated)

updateConnectStatus(token: number, deviceId: string, status: DeviceConnectState, callback: AsyncCallback<void>): void

Instructs the device selection module to update the device connection state. This API uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use updateContinuationState instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
deviceId	string	Yes	Device ID.
status	DeviceConnectState	Yes	Device connection state.
callback	AsyncCallback<void>	Yes	Callback used to return the result. If the state is updated, err is undefined; otherwise, err is an error object.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = -1;
  let deviceId: string = "test deviceId";
  continuationManager.updateConnectStatus(token, deviceId, continuationManager.DeviceConnectState.CONNECTED, (err) => {
    if (err.code != 0) {
      console.error('updateConnectStatus failed, cause: ' + JSON.stringify(err));
      return;
    }
    console.info('updateConnectStatus finished. ');
  });

continuationManager.updateConnectStatus^(deprecated)

updateConnectStatus(token: number, deviceId: string, status: DeviceConnectState): Promise<void>

Instructs the device selection module to update the device connection state. This API uses a promise to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use updateContinuationState instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
deviceId	string	Yes	Device ID.
status	DeviceConnectState	Yes	Device connection state.

Return value

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

Example

  import { continuationManager } from '@kit.AbilityKit';
  import { BusinessError } from '@kit.BasicServicesKit';

  let token: number = 1;
  let deviceId: string = "test deviceId";
  continuationManager.updateConnectStatus(token, deviceId, continuationManager.DeviceConnectState.CONNECTED)
    .then(() => {
      console.info('updateConnectStatus finished. ');
    })
    .catch((err: BusinessError) => {
      console.error('updateConnectStatus failed, cause: ' + JSON.stringify(err));
  });

continuationManager.updateContinuationState⁹⁺

updateContinuationState(token: number, deviceId: string, status: DeviceConnectState, callback: AsyncCallback<void>): void

Instructs the device selection module to update the device connection state. This API uses an asynchronous callback to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
deviceId	string	Yes	Device ID.
status	DeviceConnectState	Yes	Device connection state.
callback	AsyncCallback<void>	Yes	Callback used to return the result. If the state is updated, err is undefined; otherwise, err is an error object.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = 1;
  let deviceId: string = "test deviceId";
  try {
    continuationManager.updateContinuationState(token, deviceId, continuationManager.DeviceConnectState.CONNECTED, (err) => {
      if (err.code != 0) {
        console.error('updateContinuationState failed, cause: ' + JSON.stringify(err));
        return;
      }
      console.info('updateContinuationState finished. ');
    });
  } catch (err) {
    console.error('updateContinuationState failed, cause: ' + JSON.stringify(err));
  }

continuationManager.updateContinuationState⁹⁺

updateContinuationState(token: number, deviceId: string, status: DeviceConnectState): Promise<void>

Instructs the device selection module to update the device connection state. This API uses a promise to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
deviceId	string	Yes	Device ID.
status	DeviceConnectState	Yes	Device connection state.

Return value

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

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.

Example

  import { continuationManager } from '@kit.AbilityKit';
  import { BusinessError } from '@kit.BasicServicesKit';

  let token: number = 1;
  let deviceId: string = "test deviceId";
  try {
    continuationManager.updateContinuationState(token, deviceId, continuationManager.DeviceConnectState.CONNECTED)
      .then(() => {
        console.info('updateContinuationState finished. ');
      })
      .catch((err: BusinessError) => {
        console.error('updateContinuationState failed, cause: ' + JSON.stringify(err));
      });
  } catch (err) {
    console.error('updateContinuationState failed, cause: ' + JSON.stringify(err));
  }

continuationManager.unregister^(deprecated)

unregister(token: number, callback: AsyncCallback<void>): void

Unregisters the continuation management service. This API uses an asynchronous callback to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use unregisterContinuation instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
callback	AsyncCallback<void>	Yes	Callback used to return the result. If the unregistration is successful, err is undefined; otherwise, err is an error object.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = 1;
  continuationManager.unregister(token, (err) => {
    if (err.code != 0) {
      console.error('unregister failed, cause: ' + JSON.stringify(err));
      return;
    }
    console.info('unregister finished. ');
  });

continuationManager.unregister^(deprecated)

unregister(token: number): Promise<void>

Unregisters the continuation management service. This API uses a promise to return the result.

NOTE

This API is deprecated since API version 9. You are advised to use unregisterContinuation instead.

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.

Return value

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

Example

  import { continuationManager } from '@kit.AbilityKit';
  import { BusinessError } from '@kit.BasicServicesKit';

  let token: number = 1;
  continuationManager.unregister(token)
    .then(() => {
      console.info('unregister finished. ');
    }).catch((err: BusinessError) => {
      console.error('unregister failed, cause: ' + JSON.stringify(err));
  });

continuationManager.unregisterContinuation⁹⁺

unregisterContinuation(token: number, callback: AsyncCallback<void>): void

Unregisters the continuation management service. This API uses an asynchronous callback to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.
callback	AsyncCallback<void>	Yes	Callback used to return the result. If the unregistration is successful, err is undefined; otherwise, err is an error object.

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.

Example

  import { continuationManager } from '@kit.AbilityKit';

  let token: number = 1;
  try {
    continuationManager.unregisterContinuation(token, (err) => {
      if (err.code != 0) {
        console.error('unregisterContinuation failed, cause: ' + JSON.stringify(err));
        return;
      }
      console.info('unregisterContinuation finished. ');
    });
  } catch (err) {
    console.error('unregisterContinuation failed, cause: ' + JSON.stringify(err));
  }

continuationManager.unregisterContinuation⁹⁺

unregisterContinuation(token: number): Promise<void>

Unregisters the continuation management service. This API uses a promise to return the result.

Atomic service API: This API can be used in atomic services since API version 11.

Required permissions: ohos.permission.DISTRIBUTED_DATASYNC

System capability: SystemCapability.Ability.DistributedAbilityManager

Parameters

Name	Type	Mandatory	Description
token	number	Yes	Token obtained after the registration of the continuation management service.

Return value

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

Error codes

For details about the error codes, see Universal Error Codes and Distributed Scheduler Error Codes.

ID	Error Message
201	Permission denied.
401	Parameter error. Possible causes: 1. Mandatory parameters are left unspecified; 2. Incorrect parameter types; 3. Parameter verification failed.
16600001	The system ability works abnormally.
16600002	The specified token or callback is not registered.

Example

  import { continuationManager } from '@kit.AbilityKit';
  import { BusinessError } from '@kit.BasicServicesKit';
  
  let token: number = -1;
  try {
    continuationManager.unregisterContinuation(token).then(() => {
        console.info('unregisterContinuation finished. ');
      }).catch((err: BusinessError) => {
        console.error('unregisterContinuation failed, cause: ' + JSON.stringify(err));
    });
  } catch (err) {
    console.error('unregisterContinuation failed, cause: ' + JSON.stringify(err));
  }

DeviceConnectState

Enumerates the device connection states.

Atomic service API: This API can be used in atomic services since API version 11.

System capability: SystemCapability.Ability.DistributedAbilityManager

Name	Value	Description
IDLE	0	The device is in the initial state.
CONNECTING	1	The device is being connected.
CONNECTED	2	The device is connected.
DISCONNECTING	3	The device is being disconnected.

ContinuationMode

Enumerates the continuation modes provided by the device selection module.

Atomic service API: This API can be used in atomic services since API version 11.

System capability: SystemCapability.Ability.DistributedAbilityManager

Name	Value	Description
COLLABORATION_SINGLE	0	Single-choice mode.
COLLABORATION_MULTIPLE	1	Multi-choice mode.

ContinuationResult¹⁰⁺

type ContinuationResult = _ContinuationResult

Defines the device information returned by the continuation management entry.

Atomic service API: This API can be used in atomic services since API version 11.

System capability: SystemCapability.Ability.DistributedAbilityManager

Type	Description
_ContinuationResult	Device information returned by the continuation management entry.

ContinuationExtraParams¹⁰⁺

type ContinuationExtraParams = _ContinuationExtraParams

Defines the extra parameters required by the device selection module in the continuation management entry.

Atomic service API: This API can be used in atomic services since API version 11.

System capability: SystemCapability.Ability.DistributedAbilityManager

Type	Description
_ContinuationExtraParams	Extra parameters required by the device selection module in the continuation management entry.

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harmony 鸿蒙@ohos.continuation.continuationManager (continuationManager)

@ohos.continuation.continuationManager (continuationManager)

Modules to Import

continuationManager.register^(deprecated)

continuationManager.register^(deprecated)

continuationManager.register^(deprecated)

continuationManager.registerContinuation⁹⁺

continuationManager.registerContinuation⁹⁺

continuationManager.registerContinuation⁹⁺

continuationManager.on(‘deviceConnect’)^(deprecated)

continuationManager.on(‘deviceDisconnect’)^(deprecated)

continuationManager.off(‘deviceConnect’)^(deprecated)

continuationManager.off(‘deviceDisconnect’)^(deprecated)

continuationManager.on(‘deviceSelected’)⁹⁺

continuationManager.on(‘deviceUnselected’)⁹⁺

continuationManager.off(‘deviceSelected’)⁹⁺

continuationManager.off(‘deviceUnselected’)⁹⁺

continuationManager.startDeviceManager^(deprecated)

continuationManager.startDeviceManager^(deprecated)

continuationManager.startDeviceManager^(deprecated)

continuationManager.startContinuationDeviceManager⁹⁺

continuationManager.startContinuationDeviceManager⁹⁺

continuationManager.startContinuationDeviceManager⁹⁺

continuationManager.updateConnectStatus^(deprecated)

continuationManager.updateConnectStatus^(deprecated)

continuationManager.updateContinuationState⁹⁺

continuationManager.updateContinuationState⁹⁺

continuationManager.unregister^(deprecated)

continuationManager.unregister^(deprecated)

continuationManager.unregisterContinuation⁹⁺

continuationManager.unregisterContinuation⁹⁺

DeviceConnectState

ContinuationMode

ContinuationResult¹⁰⁺

ContinuationExtraParams¹⁰⁺

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harmony 鸿蒙@ohos.continuation.continuationManager (continuationManager)

@ohos.continuation.continuationManager (continuationManager)

Modules to Import

continuationManager.register(deprecated)

continuationManager.register(deprecated)

continuationManager.register(deprecated)

continuationManager.registerContinuation9+

continuationManager.registerContinuation9+

continuationManager.registerContinuation9+

continuationManager.on(‘deviceConnect’)(deprecated)

continuationManager.on(‘deviceDisconnect’)(deprecated)

continuationManager.off(‘deviceConnect’)(deprecated)

continuationManager.off(‘deviceDisconnect’)(deprecated)

continuationManager.on(‘deviceSelected’)9+

continuationManager.on(‘deviceUnselected’)9+

continuationManager.off(‘deviceSelected’)9+

continuationManager.off(‘deviceUnselected’)9+

continuationManager.startDeviceManager(deprecated)

continuationManager.startDeviceManager(deprecated)

continuationManager.startDeviceManager(deprecated)

continuationManager.startContinuationDeviceManager9+

continuationManager.startContinuationDeviceManager9+

continuationManager.startContinuationDeviceManager9+

continuationManager.updateConnectStatus(deprecated)

continuationManager.updateConnectStatus(deprecated)

continuationManager.updateContinuationState9+

continuationManager.updateContinuationState9+

continuationManager.unregister(deprecated)

continuationManager.unregister(deprecated)

continuationManager.unregisterContinuation9+

continuationManager.unregisterContinuation9+

DeviceConnectState

ContinuationMode

ContinuationResult10+

ContinuationExtraParams10+

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continuationManager.register^(deprecated)

continuationManager.register^(deprecated)

continuationManager.register^(deprecated)

continuationManager.registerContinuation⁹⁺

continuationManager.registerContinuation⁹⁺

continuationManager.registerContinuation⁹⁺

continuationManager.on(‘deviceConnect’)^(deprecated)

continuationManager.on(‘deviceDisconnect’)^(deprecated)

continuationManager.off(‘deviceConnect’)^(deprecated)

continuationManager.off(‘deviceDisconnect’)^(deprecated)

continuationManager.on(‘deviceSelected’)⁹⁺

continuationManager.on(‘deviceUnselected’)⁹⁺

continuationManager.off(‘deviceSelected’)⁹⁺

continuationManager.off(‘deviceUnselected’)⁹⁺

continuationManager.startDeviceManager^(deprecated)

continuationManager.startDeviceManager^(deprecated)

continuationManager.startDeviceManager^(deprecated)

continuationManager.startContinuationDeviceManager⁹⁺

continuationManager.startContinuationDeviceManager⁹⁺

continuationManager.startContinuationDeviceManager⁹⁺

continuationManager.updateConnectStatus^(deprecated)

continuationManager.updateConnectStatus^(deprecated)

continuationManager.updateContinuationState⁹⁺

continuationManager.updateContinuationState⁹⁺

continuationManager.unregister^(deprecated)

continuationManager.unregister^(deprecated)

continuationManager.unregisterContinuation⁹⁺

continuationManager.unregisterContinuation⁹⁺

ContinuationResult¹⁰⁺

ContinuationExtraParams¹⁰⁺