Question

android广播怎么把接受到的消息返回至activity

Answer 1

1. 发送广播

   Intent intent = new Intent(BroadcastAction);

   Bundle bundle = new Bundle();

   bundle.putString("***", SUCCESS);

   bundle.putString("FullPathName", mFullPathName);

   intent.putExtras(bundle);

   sendBroadcast(intent);

2.在Activity中创建一个内部类MyBroadcastReceiver扩展BroadcastReceiver，并在其中实现onReceive方法。

 3.在Activity中声明一个MyBroadcastReceiver类型的成员变量，并注册

 private MyBroadcastReceiver myBroadcastReceiver; ... 

myBroadcastReceiver = new MyBroadcastReceiver();

 IntentFilter filter = new IntentFilter(); 

filter.addAction(BroadcastAction); 

registerReceiver(receiver, filter); 

4.使用完后要记得释放 

unregisterReceiver(receiver);