setOnTapLineCallback method

void setOnTapLineCallback(dynamic callback(Duration))

Implementation

void setOnTapLineCallback(Function(Duration) callback) {
  cancelOnTapLineCallback();
  registerEvent(
      LyricEvent.tapLine,
      _onTapLineCallback = (data) {
        final index = data as int;
        return callback(
            lyricNotifier.value?.lines[index].start ?? Duration.zero);
      });
}