监听时间变动事件Intent.ACTION_TIME_TICK

在众多的Intent的action动作中，Intent.ACTION_TIME_TICK是比较特殊的一个，根据SDK描述:

Broadcast Action: The current time has changed. Sent every minute. You can not receive this through components declared in manifests, only by exlicitly registering for it withContext.registerReceiver()

意思是说这个广播动作是以每分钟一次的形式发送。但你不能通过在manifest.xml里注册的方式接收到这个广播，只能在代码里通过registerReceiver()方法注册。

在androidmanifast.xml里加入

<receiverandroid:name="com.xxx.xxx.TimeChangeReceiver">

        <intent-filterandroid:name="android.intent.action.ACTION_TIME_TICK"></intent-filter>

    </receiver>

是无效的。

想要一直监听时间变化，就只能写一个后台的service，然后给它注册一个监听了。

IntentFilter filter=new IntentFilter();
filter.addAction(Intent.ACTION_TIME_TICK); registerReceiver(receiver,filter);

 private final BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if (action.equals(Intent.ACTION_TIME_TICK)) {
             //do what you want to do ...13                     
            }
        }
};