如何在倒数计时器中显示分钟和秒

Question

我需要一些帮助.我无法正确显示分钟数,因为它给0而不是我想要的数字,但第二个工作正常.这是我的代码:

new CountDownTimer(90000, 1000) {
        @Override
        public void onTick(long millisUntilFinished) {
            tvTime.setText("Time remaining: " + String.format("%d min: %d sec",
                    TimeUnit.MICROSECONDS.toMinutes( millisUntilFinished),
                    TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) -
                    TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished))));
        }
 });

我希望它在1分钟内显示:30秒而不是0分钟:在倒计时开始时30秒.

Answer 1

试试这个

String text = String.format(Locale.getDefault(), "Time Remaining %02d min: %02d sec", 
              TimeUnit.MILLISECONDS.toMinutes(millisUntilFinished) % 60, 
              TimeUnit.MILLISECONDS.toSeconds(millisUntilFinished) % 60);
tvTime.setText(text);

Answer 2

## Try this one ##

private void startTimer(int noOfMinutes) {
CountDownTimer  countDownTimer = new CountDownTimer(noOfMinutes, 1000) {
        public void onTick(long millisUntilFinished) {
            long millis = millisUntilFinished;
            //Convert milliseconds into hour,minute and seconds
            String hms = String.format("%02d:%02d:%02d", TimeUnit.MILLISECONDS.toHours(millis), TimeUnit.MILLISECONDS.toMinutes(millis) - TimeUnit.HOURS.toMinutes(TimeUnit.MILLISECONDS.toHours(millis)), TimeUnit.MILLISECONDS.toSeconds(millis) - TimeUnit.MINUTES.toSeconds(TimeUnit.MILLISECONDS.toMinutes(millis)));
            countdownTimerText.setText(hms);//set text
        }
        public void onFinish() {
            countdownTimerText.setText("TIME'S UP!!"); //On finish change timer text
        }
    }.start();

}