harmony 鸿蒙ConnectOptions

2022-12-22
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ConnectOptions

ConnectOptions can be used as an input parameter to receive status changes during the connection to a background service. For example, it is used as an input parameter of connectServiceExtensionAbility to connect to a ServiceExtensionAbility.

NOTE

The initial APIs of this module are supported since API version 7. Newly added APIs will be marked with a superscript to indicate their earliest API version.

Modules to Import

import common from '@ohos.app.ability.common';

Attributes

System capability: SystemCapability.Ability.AbilityRuntime.Core

Name	Type	Mandatory	Description
onConnect⁷⁺	function	Yes	Callback invoked when a connection is set up.
onDisconnect⁷⁺	function	Yes	Callback invoked when a connection is interrupted.
onFailed⁷⁺	function	Yes	Callback invoked when a connection fails.

Example

  import common from '@ohos.app.ability.common';
  import Want from '@ohos.app.ability.Want';

  let want: Want = {
    bundleName: 'com.example.myapp',
    abilityName: 'MyAbility'
  };

  let connectOptions: common.ConnectOptions = {
    onConnect(elementName, remote) { 
        console.log('onConnect elementName: ${elementName}');
    },
    onDisconnect(elementName) { 
        console.log('onDisconnect elementName: ${elementName}');
    },
    onFailed(code) { 
        console.error('onFailed code: ${code}');
    }
  };

  let connection: number = this.context.connectAbility(want, connectOptions);