Broadcast Receiver接收并处理自定义Action广播通知

gt;  <intent-filter>  <!-- 和Intent中的action对应 -->  <action android:name="com.forrest.action.mybroadcast"/>  </intent-filter>  </receiver> 2）在代码中注册 Java代码    IntentFilter filter = new IntentFilter("com.forrest.action.mybroadcast"); // 和广播中Intent的action对应  MyBroadcastReceiver br = new MyBroadcastReceiver();  registerReceiver(new MyBroadcastReceiver(), filter);      IntentFilter filter = new IntentFilter("com.forrest.action.mybroadcast"); // 和广播中Intent的action对应  MyBroadcastReceiver br = new MyBroadcastReceiver();  registerReceiver(new MyBroadcastReceiver(), filter); 3）注销 Java代码    unregisterReceiver(br);      unregisterReceiver(br);   3. 示例代码 Java代码    public class Receiver1 extends BroadcastReceiver {  private Context context;  public static final int NOTIFICATION_ID = 10001;    public void onReceive(Context context, Intent intent) {  this.context = context;  showNotification();  }    private void showNotification() {  Notification notification = new Notification(R.drawable.icon, "来电话啦", System.currentTimeMillis());  PendingIntent contentIntent = PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), 0);  notification.setLatestEventInfo(context, "来电话啦嘿嘿", "赶紧接电话，否则误大事了", contentIntent);    NotificationManager notificationManager = (NotificationManager) context.getSystemService(  android.content.Context.NOTIFICATION_SERVICE);  notificationManager.notify(NOTIFICATION_ID, notification);  }  }      public class Receiver1 extends BroadcastReceiver {  private Context context;  public static final int NOTIFICATION_ID = 10001;  public void onReceive(Context context, Intent intent) {  this.context = context;  showNotification();  }  private void showNotification() {  Notification notification = new Notification(R.drawable.icon, "来电话啦", System.currentTimeMillis());  PendingIntent contentIntent = PendingIntent.getActivity(context, 0, new Intent(context, MainActivity.class), 0);  notification.setLatestEventInfo(context, "来电话啦嘿嘿", "赶紧接电话，否则误大事了", contentIntent);  NotificationManager notificationManager = (NotificationManager) context.getSystemService(  android.content.Context.NOTIFICATION_SERVICE);  notificationManager.notify(NOTIFICATION_ID, notification);  }  } Java代码    public class Receiver2 extends BroadcastReceiver {