| Flutter iOS Embedder |

### - r -

- range : FlutterTextRange
- rangeToSuggestions : MockTextChecker
- receivedNotification : FlutterTextInputViewSpy
- receivedNotificationTarget : FlutterTextInputViewSpy
- rect : FlutterTextSelectionRect
- registrars : FlutterEngine()
- responder : FlutterKeyPendingResponse
- responseId : FlutterEmbedderKeyResponder() , FlutterKeyPendingResponse
- restorationChannel : FlutterEngine
- restorationData : FlutterRestorationPlugin
- reverseScreenScale : FlutterClippingMaskView()
- right : Pair
- rootFlutterViewControllerGetter : FlutterAppDelegate() , FlutterAppDelegate(Test) , FlutterAppDelegate