Android的倒数计时器显示毫秒？ [英] Android countdown timer display milliseconds?

问题描述

我想一个计时器弹出，当我点击一个按钮，从3秒倒计时。它确实是不错，但我希望它也显示毫秒，所以当我点击按钮上的文字会去从3.0到0.1。如何将我的毫秒添加到文本看法？

I want a timer to pop up when I click a button that will count down from 3 seconds. And it does that fine but i want it to also show the milliseconds so when I click the button the text would go from 3.0 to 0.1. How would I add the milliseconds to the text view?

new CountDownTimer(1000, 3000) {

                public void onTick(long millisUntilFinished) {
                    textViewTimer.setText("" + millisUntilFinished / 1000);
                }

                public void onFinish() {
                    textViewTimer.setVisibility(View.INVISIBLE);
                    textViewLevelGained.setVisibility(View.INVISIBLE);

                }
            }.start();

这是我所

推荐答案

其他SO问题，建议CountDownTimer没有做分1秒粒度好。寻找到一个不同的类，像TimerTask的。

Other SO questions suggest CountDownTimer doesn't do sub 1-second granularity well. Look into a different class, like TimerTask.

另外，以下是可行的。

new CountDownTimer(3000, 1) {
    public void onTick(long millisUntilFinished) {
        textViewTimer.setText("" + millisUntilFinished / 1000
          + "." + millisUntilFinished % 1000);
    }

    public void onFinish() {
        textViewTimer.setVisibility(View.INVISIBLE);
        textViewLevelGained.setVisibility(View.INVISIBLE);
    }
}.start();

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