setVolume method
Set volume (0-100)
Implementation
Future<bool> setVolume(int newVolume) async {
final success = await _service.setVolume(
newVolume,
_state.selectedPlayer.isNotEmpty ? _state.selectedPlayer : null,
);
if (success) {
_updateState(_state.copyWith(volume: newVolume));
} else {
_updateState(_state.copyWith(errorMessage: 'Failed to set volume'));
}
return success;
}