android - 多个倒数计时器依次运行

Question

这是我的第一个问题。我需要在我的应用程序中实现六个 countdown timers 一个接一个地运行。第一个完成时，下一个开始，依此类推。每次运行的 Init time 取决于用户输入。问题是我需要在 onTick() 和 onFinish() 方法中为每个正在运行的 countdown timer 放置不同的代码，嗯，我不确定如何在完成后启动下一个 counter。我正在考虑在当前的 onFinish() 方法中调用下一个 counter 但我无法弄清楚如何使用 6 个 counters .

这是我的倒计时计时器类:

public class Counter extends CountDownTimer
{

    public Counter(long millisInFuture, long countDownInterval)
    {
        super(millisInFuture, countDownInterval);
    }

    public void onTick(long millisUntilFinished)
    {
            //this code is the same for every counter
            timer_view.setText(formatTime(millisUntilFinished));

            //this code depends on specific counter running
            output_view1.setText("My output here");
            output_view2.setText("My output here");
            output_view3.setText("My output here");

    }

    public void onFinish()
    {
        playSound(sound_id_1);
        runMyMethod(user_input_1);

        timerHasStarted = false;


    }

}

我在同一个 Activity 中开始我的计数器:

if(!timerHasStarted)
{
counter = new Counter(user_input1, 1000);
    counter.start();
}

Answer 1

您可能需要分解开始计时器功能并在 onFinish() 中调用它。

    public void startTimer(int counterId){
            Counter counter = null;
            switch(counterId){
                    case 0:
                            counter = new CounterOne(counterId,user_input1,1000);
                            break;  
                    /* Counter 1-5  goes here*/
                    default:
                            break;
            }
            if(counter !=null ){
                    counter.start();
            }
    }

然后在 onFinsh() 中启动你的下一个计时器

    public abstract class Counter extends CountDownTimer
    {
            private int counterId;

            public Counter(int counterId /*counter id start with 0*/,long millisInFuture, long countDownInterval)
            {
                    super(millisInFuture, countDownInterval);
                    this.counterId = counterId;
            }

            public abstract void onTick(long millisUntilFinished);

            public void onFinish()
            {
                    playSound(sound_id_1);
                    runMyMethod(user_input_1);
                    startTimer(this.counterId++);
            }

    }

    public class CounterOne extends Counter{
            public void onTick(long millisUntilFinished)
            {
                    //counter 1 logic
            }
    }

    /* Subclass others. eg. CounterTwo etc. */