LocalBroadcastManager

在v4支持包中。只能在同一个App类发送方法

• static LocalBroadcastManager getInstance(Context context)
• registerReceiver(BroadcastReceiver receiver, IntentFilter filter)
• unregisterReceiver(BroadcastReceiver receiver)
• sendBroadcast(Intent intent)
• sendBroadcastSync(Intent intent)