Comments (1)
luckybilly
commented on May 18, 2024
@SheepYang1993 CC是一对一的通信，不支持多次回调。
但可以使用动态组件来实现此类功能，实现步骤如下：
- DownloadComponent中定义2个actionName: “subscribe”和“unsubscribe”,接收订阅下载状态的组件
- Activity/Fragment在需要监听下载状态时创建一个IDynamicComponent实现类，通过CC.registerComponent(component)动态注册，
- 通过CC调用DownloadComponent的subscribe向下载组件注册监听
- DownloadComponent内部记录所有注册监听的组件componentName和actionName
- DownloadComponent下载状态改变时，将通过CC调用所有注册监听的组件将下载状态发送给它们
- Activity/Fragment不再需要监听下载状态时（如：onDestroy）通过CC调用DownloadComponent的unsubscribe进行注销，
- 调用CC.unregisterComponent(component)注销动态组件
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Related Issues (20)
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- 关于CC的一些建议 HOT 1
- 。
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