updateClock method

Implementation

void updateClock() {
  if (currentSeconds < 0) {
    currentSeconds = 0;
  }
  if (currentSeconds >= 3600) {
    currentSeconds = 3599;
    if (currentStatus == ClockStatus.start) {
      onPause();
    }
  }
  final minutes = currentSeconds ~/ 60;
  final seconds = currentSeconds % 60;
  setState(() {
    minuteHigh = minutes ~/ 10;
    minuteLow = minutes % 10;
    secondHigh = seconds ~/ 10;
    secondLow = seconds % 10;
  });
}