Android 倒数计时器：添加小时

Question

在倒数计时器中添加小时数，我只有几分钟然后如何格式化它 private void updateCountDownText() {        int hours = (int) (mTimeLeftInMillis / 1000) / 36000;        int minutes = (int) (mTimeLeftInMillis / 1000) / 60;        int seconds = (int) (mTimeLeftInMillis / 1000) % 60;        String timeLeftFormatted = String.format(Locale.getDefault(), "%02d:%02d:%02d", hours, minutes, seconds);        mTextViewCountDown.setText(timeLeftFormatted);    }

Answer 1

我建议使用TimeUnit而不是手动转换时间。

试试这个：

int hours = TimeUnit.MILLISECONDS.toHours(mTimeLeftInMillis);

int minutes = TimeUnit.MILLISECONDS.toMinutes(mTimeLeftInMillis) % TimeUnit.HOURS.toMinutes(1);

int seconds = TimeUnit.MILLISECONDS.toSeconds(mTimeLeftInMillis) % TimeUnit.MINUTES.toSeconds(1);

String timeLeftFormatted = String.format(Locale.getDefault(), "%02d:%02d:%02d", hours, minutes, seconds);

mTextViewCountDown.setText(timeLeftFormatted);