Fixing null safety warning in flutter3

Author: mikeesouth

lib/rive_loading.dart

@@ -127,7 +127,7 @@ class _RiveLoadingState extends State<RiveLoading> {
 
   _finished() {
     if (!_controller.isLoading!) {
-      WidgetsBinding.instance!.addPostFrameCallback((timeStamp) {
+      WidgetsBinding.instance.addPostFrameCallback((timeStamp) {
         if (_isSuccessful) {
           widget.onSuccess(_data);
         } else {

pubspec.yaml

@@ -1,6 +1,6 @@
 name: rive_loading
 description: Loading widget based on a custom Rive animation, allow you to create beautiful custom loading widgets or dialogs
-version: 0.1.2
+version: 0.1.3
 homepage: https://github.com/jaumard/rive_loading
 
 environment: