addListener method

void addListener(
  1. void listener(
    1. Duration time,
    2. GrockTimerState state
    )
)

Add a listener to the timer

Implementation

void addListener(
    void Function(Duration time, GrockTimerState state) listener) {
  WidgetsBinding.instance.addPostFrameCallback((_) {
    _state.widget.onTimerTick = listener;
  });
}