pause method

dynamic pause()

Implementation

pause() {
  if (_state != _CircleState.Start && _state != _CircleState.Resume) {
    return;
  }

  _state = _CircleState.Pause;
  _duration = Duration(
      milliseconds: _duration.inMilliseconds + _HowLongForegroundStay());

  // QTTrackLogger.i("QTPageTimer", "pause");
}