Broadcast广播的使用

一、广播的注册
注册一个广播接收者来接收广播

class MyReceiver1 extends BroadcastReceiver{
        @Override
        public void onReceive(Context context, Intent intent) {
            String str=intent.getStringExtra("str");
            Log.i("dayang","-------MyReceiver1-------字符串-----------"+str);
        }
    }

1、动态注册广播
动态注册广播，记得取消

  MyReceiver1  receiver1=new MyReceiver1();
  IntentFilter intentFilter=new IntentFilter();
  intentFilter.addAction("dayang.receiver");
 registerReceiver(receiver1,intentFilter);

2、静态注册
二、广播开启其他组件