dispose method

Implementation

@override
Future<void> dispose() async {
  try {
    if (kDebugMode) {
      debugPrint('QuickQR Scanner: Disposing scanner resources');
    }

    await methodChannel.invokeMethod('dispose');

    // Clean up local resources
    _scanSubscription?.cancel();
    _scanSubscription = null;
    _scanStream = null;

    if (kDebugMode) {
      debugPrint('QuickQR Scanner: Resources disposed successfully');
    }
  } on PlatformException catch (e) {
    throw _handlePlatformException(e, 'dispose');
  } catch (e) {
    throw ScannerException(
      ScannerErrorCode.internalError,
      'Failed to dispose scanner: $e',
    );
  }
}