in_build_method_before.dart

class SomeWidget extends ConsumerWidget {
  const SomeWidget({
    super.key,
  });
  
  Future<void> _playMusic({
    required BuildContext context,
    required WidgetRef ref,
    required int musicId,
    required int volume,
  }) async {
    final music = await _searchMusic(
      ref: ref,
      musicId: musicId,
    );
    // play music for music with volume
  }
  
  Future<Music?> _searchMusic({
    required WidgetRef ref,
    required int musicId,
  }) async {
    // search
  }
  
  @override
  Widget build(BuildContext context, WidgetRef ref) {
    final musicId = ref.watch(musicIdProvider);
    final volume = ref.watch(volumeProvider);
    
    return TextButton(
      onPressed: () => _playMusic(
        context: context,
        ref: ref,
        musicId: musicId,
        volume: volume,
      ),
      child: Text('sample'),
    );
  }
}