Three of the four component types-activities, services, and broadcast receivers-are activated by an asynchronous message called an intent.
上述四种组件类型中，activities、services和broadcast receivers这三种是被一个叫做intent的异步消息激活的。
A broadcast receiver is implemented as a subclass of BroadcastReceiver and each broadcast is delivered as an Intent object.
一个broadcastreceiver通过继承broadcastreceiver类来实现，每个broadcast被作为一个Intent对象发布。
If you want to hear what song, want your cerebral consciousness flash before one only, pushbutton can identify your intent automatically, broadcast the song that you consider to listen.
假如你想听什么歌曲，只要你的脑意识闪现一下，按钮就会自动识别你的意图，播出你想听的歌曲。
If you want to hear what song, want your cerebral consciousness flash before one only, pushbutton can identify your intent automatically, broadcast the song that you consider to listen.
假如你想听什么歌曲，只要你的脑意识闪现一下，按钮就会自动识别你的意图，播出你想听的歌曲。
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