案例中自定义的广播接收者MyBroadcastReceiver继承的是（ ）类。
案例中自定义的广播接收者MyBroadcastReceiver继承的是（ ）类。
自定义的广播接收者MyBroadcastReceiver继承的是()类。 A: BroadcastReceiver B: Broadcast C: BroadcastReceive D: ContentProvider
自定义的广播接收者MyBroadcastReceiver继承的是()类。 A: BroadcastReceiver B: Broadcast C: BroadcastReceive D: ContentProvider
案例中自定义的广播接收者MyBroadcastReceiver继承的是（ ）类。 A: BroadcastReceiver B: BroadcastReceive C: Broadcast D: ContentProvider
案例中自定义的广播接收者MyBroadcastReceiver继承的是（ ）类。 A: BroadcastReceiver B: BroadcastReceive C: Broadcast D: ContentProvider
广播接收器的注册有两种方式：一种是代码注册：//创建广播接收器: MyBroadcastReceiver receiver = new MyBroadcastReceiver();//创建过滤器并设置想要接受广播的动作: IntentFilter intentFilter = new IntentFilter("abc");//注册接收器: ______ (______ , ______ ); //最后在应用程序结束时还要取消注册广播: unregisterReceiver(receiver)：
广播接收器的注册有两种方式：一种是代码注册：//创建广播接收器: MyBroadcastReceiver receiver = new MyBroadcastReceiver();//创建过滤器并设置想要接受广播的动作: IntentFilter intentFilter = new IntentFilter("abc");//注册接收器: ______ (______ , ______ ); //最后在应用程序结束时还要取消注册广播: unregisterReceiver(receiver)：
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