android注册广播的两种方式及优缺点

注册广播共有两种方式,一种是通过在manifest.xml文件中注册,  不需要手动进行注销

先在XML文件中添加 

<receiver android:name="Broadcastreceiver">
            <intent-filter>
                <action android:name="test" />
            </intent-filter>
 </receiver>

然后再在JAVA篇码段中添加Intent intent = new Intent("test");   sendBroadcast(intent);

 另一种直接在代码中通过代码注册（有点类似如隐式Intent）;需要通过手动进行注销(unregisterReceiver(receiver);

首先定义IntentFilter intentfilter = new IntentFilter("test");
   registerReceiver(receiver, intentfilter);
  unregisterReceiver(receiver);

然后再接收

Broadcastreceiver_test receiver = new Broadcastreceiver_test(){
  public void onReceive(android.content.Context context, Intent intent) {
   log.d("receiver","receiver:"+test); };

最后发送Intent intent = new Intent("test");   sendBroadcast(intent);