launchAR method
Implementation
@override
Future<bool?> launchAR(String url) async {
var data = Uri.parse("https://arvr.google.com/scene-viewer/1.0").replace(
queryParameters: <String, dynamic>{'file': url, 'mode': 'ar_only'});
return await methodChannel.invokeMethod<bool>('launchAR',
<String, dynamic>{'data': Platform.isAndroid ? data.toString() : url});
}