Port example to null safety

olexale · olexale · commit 0e238f1d31e3 · 2021-08-10T20:37:34.000+03:00
diff --git a/README.md b/README.md
@@ -56,11 +56,11 @@ class MyApp extends StatefulWidget {
 }
 
 class _MyAppState extends State<MyApp> {
-  ARKitController arkitController;
+  late ARKitController arkitController;
 
   @override
   void dispose() {
-    arkitController?.dispose();
+    arkitController.dispose();
     super.dispose();
   }
 

Original file line number	Diff line number	Diff line change
`@@ -56,11 +56,11 @@ class MyApp extends StatefulWidget {`
`56`	`56`	`}`
`57`	`57`
`58`	`58`	`class _MyAppState extends State<MyApp> {`
`59`		`- ARKitController arkitController;`
	`59`	`+ late ARKitController arkitController;`
`60`	`60`
`61`	`61`	`@override`
`62`	`62`	`void dispose() {`
`63`		`- arkitController?.dispose();`
	`63`	`+ arkitController.dispose();`
`64`	`64`	`super.dispose();`
`65`	`65`	`}`
`66`	`66`