buildSlider method

Implementation

Widget buildSlider() {
  return MultiValueListenableBuilder(
    valueListenables: [
      _durationNotifier,
      _positionNotifier,
      _playerStateNotifier,
    ],
    builder: (context, values, _) {
      Duration duration = values.elementAt(0);
      Duration position = values.elementAt(1);
      PlayerState? playerState = values.elementAt(2);

      double sliderValue = position.inMilliseconds.toDouble();

      if (playerState == null ||
          playerState.processingState == ProcessingState.completed) {
        sliderValue = 0;
      }

      return Expanded(
        child: Slider(
            value: sliderValue,
            max: (playerState == null ||
                    playerState.processingState == ProcessingState.completed)
                ? 1.0
                : duration.inMilliseconds.toDouble(),
            onChanged: (progress) {
              if (playerState == null ||
                  playerState.processingState == ProcessingState.completed) {
                sliderValue = progress.floor().toDouble();
                _audioPlayer.seek(Duration(
                  milliseconds: sliderValue.toInt(),
                ));
              } else {
                sliderValue = progress.floor().toDouble();
                _audioPlayer
                    .seek(Duration(milliseconds: sliderValue.toInt()));
              }
            }),
      );
    },
  );
}