如何重置计时器？

Question

我可以将计时器设置为从10秒开始倒数，但是下一页时间将从0开始。如何在每次运行时重置时间？

这是我的代码。

private TextView TIMER;
private int Timerr = 10;

public void Show_Next_Quiz(){

        Random random = new Random();
        int Random_Num = random.nextInt(quizArray.size());
        ArrayList<String> quiz = quizArray.get(Random_Num);

        Question1.setText(quiz.get(6)+quizCount);

    Right_Answer = quiz.get(0);

    quiz.remove(6);

    Collections.shuffle(quiz);

    iV1.setImageResource(
            getResources().getIdentifier(quiz.get(0), "drawable", getPackageName())
    );
    iV2.setImageResource(
            getResources().getIdentifier(quiz.get(1), "drawable", getPackageName())
    );
    iV3.setImageResource(
            getResources().getIdentifier(quiz.get(2), "drawable", getPackageName())
    );
    iV4.setImageResource(
            getResources().getIdentifier(quiz.get(3), "drawable", getPackageName())
    );
    iV5.setImageResource(
            getResources().getIdentifier(quiz.get(4), "drawable", getPackageName())
    );
    iV6.setImageResource(
            getResources().getIdentifier(quiz.get(5), "drawable", getPackageName())
    );

        ans1.setText(quiz.get(0).substring(0,(quiz.get(0).length()-1)));
        ans2.setText(quiz.get(1).substring(0,(quiz.get(1).length()-1)));
        ans3.setText(quiz.get(2).substring(0,(quiz.get(2).length()-1)));
        ans4.setText(quiz.get(3).substring(0,(quiz.get(3).length()-1)));
        ans5.setText(quiz.get(4).substring(0,(quiz.get(4).length()-1)));
        ans6.setText(quiz.get(5).substring(0,(quiz.get(5).length()-1)));

        Count_Down();
        quizArray.remove(Random_Num);
}

public void Count_Down(){
    new CountDownTimer(12*1000,1*1000){
        @Override
        public void onTick(long millisUntilFinished) {
            TIMER.setText(String.valueOf(Timerr));
            Timerr--;
        }
        @Override
        public void onFinish() {
            TIMER.setVisibility(View.INVISIBLE);
            TIMER.setText(String.valueOf(Timerr));
        }
    }.start();

在函数CountDown中，我同时将TIMER.setText(String.valueOf(Timerr))（onTick和onFinish）都放在了其中，但是它不能工作。我如何使计时器为10秒。每次？

Answer 1

为CountDownTimer设置全局变量。

CountDownTimer countDownTimer;

private void timer(){
        countDownTimer =  new CountDownTimer(12*1000,1*1000){
            @Override
            public void onTick(long millisUntilFinished) {
                TIMER.setText(String.valueOf(Timerr));
                Timerr--;
            }
            @Override
            public void onFinish() {
                TIMER.setVisibility(View.INVISIBLE);
                TIMER.setText(String.valueOf(Timerr));
            }
        }.start();

    }

取消计时器

countDownTimer.cancel();

对于完成计时器

countDownTimer.onFinish();

对于重启/启动计时器

countDownTimer.start();