android 万能倒计时

初始化变量

private int recLen =3 ;private Timer timer = new Timer();

创建TimerTask

TimerTask task = new TimerTask() {    @Override    public void run() {        runOnUiThread(new Runnable() {      // UI thread            @Override            public void run() {                recLen--;                if(recLen < 1){//倒计时完毕                     Log.v("lgq","ccccccccccccccc");

                     timer.cancel();//停止倒计时
                }            }        });    }};

开始倒计时

@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_user_manage);    timer.schedule(task, 1000, 1000);//开始循环倒计时}