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请问CC支持多次回调么？ #58

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SheepYang1993 opened this issue Sep 18, 2018 · 1 comment

SheepYang1993 commented Sep 18, 2018

例如文件下载进度回调，需要多次回调。

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luckybilly commented Sep 18, 2018

@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

luckybilly closed this as completed

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