Question

我已经制作了以mmm:ss格式

显示结果的课程

以下是代码：

class CountDown extends CountDownTimer {

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

    @Override
    public void onTick(long millisUntilFinished) {
        long ms = millisUntilFinished;
        String text = String.format("%03d:%02d",
                TimeUnit.MILLISECONDS.toMinutes(ms) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(ms)),
                TimeUnit.MILLISECONDS.toSeconds(ms) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(ms)));
        tvTimer.setText(text);
    }


    @Override
    public void onFinish() {
        try {
            new AlertDialog.Builder(MCQActivity.this)
                    .setTitle("Time is over")
                    .setMessage("Your time is finished, Click on ok to go result page")
                    .setPositiveButton(android.R.string.ok, new DialogInterface.OnClickListener() {
                        public void onClick(DialogInterface dialog, int which) {
                            dialog.dismiss();
                            saveWorkAndShowResult();

                        }
                    })
                    .setIcon(android.R.drawable.ic_dialog_alert)
                    .show();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

如果我要通过

mCountDownTimer = new CountDown(1000 * 60 * 30, 1000);
mCountDownTimer.start();

工作正常并向我显示30 mins

但如果我想展示180 min

mCountDownTimer = new CountDown(1000 * 60 * 180, 1000);

从60 min

开始

有人可以帮我解决这个问题吗？

Answer 1

您的代码会减少到分钟数，不包括任何小时数。只需删除- TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(ms)以解决此问题的位

Answer 2

您可以在代码中使用以下转换功能;

        Long hour = TimeUnit.HOURS.convert(millisUntilFinished, TimeUnit.MILLISECONDS);
        millisUntilFinished= millisUntilFinished% (1000 * 60 * 60);
        Long minutes = TimeUnit.MINUTES.convert(millisUntilFinished, TimeUnit.MILLISECONDS);
        millisUntilFinished= millisUntilFinished% (1000 * 60);
        Long seconds = TimeUnit.SECONDS.convert(millisUntilFinished, TimeUnit.MILLISECONDS);
        millisUntilFinished= millisUntilFinished% 1000;
        Long milisec = millisUntilFinished;

然后过去改变你的String格式化程序;

        String text = String.format("%03d:%02d", minutes , seconds );

Answer 3

var date = new Date（$（＆＃39;＃date＆＃39;）。val（））; date.setTime（date.getTime（） - date.getTimezoneOffset（）* 60 * 1000）;

如何将毫秒转换为“mmm：ss”格式？

3 个答案: