harmony 鸿蒙分布式调度子系统ChangeLog

2022-12-22
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分布式调度子系统ChangeLog

cl.DistributedManagerService.1 continuationManager事件监听接口on/off变更

continuationManager事件监听接口on/off传入的参数事件类型名，命名不符合OpenHarmony的API接口规范。
continuationManager.on对于不同的事件接口返回值未进行统一，不符合OpenHarmony的API接口规范。

已做出以下变更：

continuationManager.on和continuationManager.off的设备选择事件名由原来的”deviceConnect”变更为”deviceSelected”，设备取消选择事件名由原来的”deviceDisconnect”变更为”deviceUnselected”。
continuationManager.on对于不同事件统一callback返回值类型”Callback<Array<ContinuationResult>>“。

变更影响

基于此前版本开发的应用，需适配变更接口，否则会影响原有业务逻辑。

关键的接口/组件变更

涉及接口

continuationManager.on; continuationManager.off;

变更前：

  function on(type: "deviceConnect", token: number, callback: Callback<Array<ContinuationResult>>): void;
  function off(type: "deviceConnect", token: number): void;
  function on(type: "deviceDisconnect", token: number, callback: Callback<Array<string>>): void;
  function off(type: "deviceDisconnect", token: number): void;

变更后：

  function on(type: "deviceSelected", token: number, callback: Callback<Array<ContinuationResult>>): void;
  function off(type: "deviceSelected", token: number): void;
  function on(type: "deviceUnselected", token: number, callback: Callback<Array<ContinuationResult>>): void;
  function off(type: "deviceUnselected", token: number): void;

适配指导 修改事件名称，示例代码如下：

continuationManager.on 设备选择事件

  let token = 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.off 设备选择事件

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

continuationManager.on 设备取消选择事件

  let token = 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 设备取消选择事件

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