广播

//动态广播

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    br = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            Toast.makeText(context, "这是tusi广播", Toast.LENGTH_SHORT).show();
        }
    };
    IntentFilter filter=new IntentFilter();
    filter.addAction(Dongtai);
    //注册广播
    registerReceiver(br,filter);
    Intent in=new Intent();
    in.setAction(Dongtai);
    //发送广播
    sendBroadcast(in);

}

@Override
protected void onDestroy() {
    super.onDestroy();
    //取消注册
    unregisterReceiver(br);
}

//静态广播

创建普通类继承BroadcastReceiver

在配置文件中注册

<Receiver android:name="包名.类名">

<intent-filter>
<action android:name="jingtai">
</intent-filter>
</Receiver>