android 计时器

<wbr><span style="font-size:18px"> 用JAVA 的方法：<br><br></span><span style="font-size:18px"></span><pre name="code" class="java"><span style="font-size:18px;"> class timeextends TimerTask implements Runnable{ public void run() { System.out.println("开始倒计时2秒"); Looper.prepare(); //计数器加1 Repeat_num++; //将字节输入管道并发送 try { timer = new Timer(); timer.schedule(new callback(), 2000); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } Looper.loop(); } class callback extends TimerTask { public void run() { Looper.prepare(); System.out.println("计时结束"); //参数加1，表示是重发信息，在界面上不要再出现弹出式的提醒，搞成后台静默式发送 try { clickOnAndroid_saveSendTo(1); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } Looper.loop(); } } } </span></pre> <span style="font-size:18px"><br><br><br><br> 用线程睡常见的方式：<br></span><pre name="code" class="java"><span style="font-size:18px;">public class Calculation { public static void calculate(int sleepSeconds){ try { Thread.sleep(sleepSeconds * 1000); } catch (Exception e) { // TODO: handle exception } } </span></pre> <span style="font-size:18px"><br><br></span></wbr>