Android BroadcastReceiver和Activity.onPause（）(Android BroadcastReceiver and Activity.onPause())

 BroadcastReceiver的文档说 ： 
 
 
 
 如果在Activity.onResume（）实现中注册接收器，则应在Activity.onPause（）中取消注册。 （暂停时不会收到意图，这将减少不必要的系统开销）。 
 
 
 我做了一个Activity A1的例子，它有一个内部BroadcastReceiver，当Service S1发出sendBroadcast时，它会更新A1接口。 S1花费大约8秒钟完成。 
 
 当运行A1并按下主页按钮以使A1调用onPause时，“它仍然从sendBroadcast接收意图”并更新界面，我是否遗漏了某些内容或文档错误？ 
 谢谢 

The documentation for BroadcastReceiver says:
 
 
 
If registering a receiver in your Activity.onResume() implementation, you should unregister it in Activity.onPause(). (You won't receive intents when paused, and this will cut down on unnecessary system overhead).
 
 
I made an example of Activity A1 that has an inner BroadcastReceiver that updates A1 interface when a Service S1 makes a sendBroadcast. S1 spends around 8 seconds to finish. 
 
When running A1 and hitting the home button for making A1 call onPause, "it still receives the intent from sendBroadcast" and updates the interface, am I missing something or the documentation is wrong?
 Thanks