setScrollwheel method
Sets street view to allow using scrollwheel zooming or not. Web only
Return Future while the change has been made on the platform side.
Implementation
Future<void> setScrollwheel(bool enable) {
if (!kIsWeb)
throw UnsupportedError("[setScrollwheel] is not yet supported for Web.");
if (enable == _isScrollwheel) return Future.delayed(Duration.zero);
return _streetViewFlutterPlatform
.setScrollwheel(viewId, enable)
.then((value) => _isScrollwheel = enable);
}