课堂倒数计时器不会重置

我有一个要重置的班级倒数计时器，但重置时不会再次启动。基本上，当计数器到达时0（状态为“完成”时），先进行设置x = 1，然后在活动中检查是否为x = 1，然后计数器复位。当从类中调用reset方法时，它表明已重置，但不会再次开始计数

计时器类：

public class countdown_timer {
private long pls;
private long millisInFuture;
private long countDownInterval;
private boolean status;
int x = 0;
public countdown_timer(long pMillisInFuture, long pCountDownInterval) {
    this.millisInFuture = pMillisInFuture;
    this.countDownInterval = pCountDownInterval;
    this.pls = pMillisInFuture;
    status = false;
    Initialize();
}
    public void Stop() {
    status = false;
}
    public int GetNumberX() {
    return x;
}

public void Reset() {
    millisInFuture = pls;
    x=0;
}
    public void Start() {
    status = true;
}

public void Initialize() {
    final Handler handler = new Handler();
    Log.v("status", "starting");
    final Runnable counter = new Runnable() {

        public void run() {
            long sec = millisInFuture / 1000;
            if (status) {
                if (millisInFuture <= 0) {
                    Log.v("status", "done");
                    x = 1;
                } else {
                    Log.v("status", Long.toString(sec) + " seconds remain");
                    millisInFuture -= countDownInterval;
                    handler.postDelayed(this, countDownInterval);
                }
            } else {
                Log.v("status", Long.toString(sec) + " seconds remain and timer has stopped!");
                handler.postDelayed(this, countDownInterval);
            }
        }
    };

    handler.postDelayed(counter, countDownInterval);
}

使用计时器类的活动：

mycounterup = new countdown_timer(startcard, 1000);
xup = mycounterup.GetNumberX();
if (xup == 1) {
   mycounterup.Reset();
   mycounterup.Start();

谢谢你的帮助。