Android(安卓)Timer 更好方法

Android 的Timer 一般如下面所写

Timer timer = new Timer();TimerTask task = new TimerTask() {public void run() {Message message = new Message();message.what = 1;handler.sendMessage(message);}};

final Handler handler = new Handler() {public void handleMessage(Message msg) {switch (msg.what) {case 1:Log.e("Timer", "Timer");update();break;}super.handleMessage(msg);}};

protected void onDestroy() {if (timer != null) {timer.cancel();timer = null;}super.onDestroy();}

最重要一点是timer.schedule(task, 1000, 5000);如果设置为timer.schedule(task, 5000)是不会工作的。

protected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);this.setContentView(R.layout.main);                                timer.schedule(task, 1000, 5000);                 }

但更好的方法是通过下面的代码

private Handler handler = new Handler();private Runnable runnable = new Runnable() {public void run() {update();handler.postDelayed(this, 1000);}};

开始Timer

handler.postDelayed(runnable, 1000);

停止Timer

handler.removeCallbacks(runnable);

可浏览下面的资料：http://www.muktosoft.com/blog/timer-in-android-the-better-way/

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