Android Broadcast Receivers

BroadcastReceivers class：擴播的資料接收器，需在AndroidManifest.xml 進行註冊，
Tag 為 receiver.

Broadcast receivers are Android's implementation of the Publish/Subscribe messaging pattern, or more precisely, the Observer pattern.

extends BroadcastReceiver

AndroidManifest.xml

Boot 完成後，觸發 UpdateServer

Intent Filter 把它想成過慮條件用，符合條件才執行。

Broadcast 中自行自訂的「標記」一律需在 AndroidManifest.xml 

uses-permission 加再註冊。

關鍵字
intent broadcast




http://blog.csdn.net/yaolingrui/article/details/7337978 (应用程序中Broadcast Receiver的两种注册方法及比较)
http://blog.csdn.net/hitlion2008/article/details/6966569 (Intent & Intent Filter)
O'REILLY  Learning Android.