startTimer method

void startTimer()

Implementation

void startTimer() {
  setState(() {
    isTimerRunning = true;
  });
  timer = Timer.periodic(const Duration(seconds: 1), (timer) {
    if (!isRecording) {
      isTimerRunning = false;
      timer.cancel();
    }
    setState(() {
      seconds += 1;
    });
  });
}