fix: 🐛 Fixed Null check operator used on a null value (#449) (#452)

SimformSolutionsPvtLtd · May 31, 2024 · c0f67f1 · c0f67f1
1 parent 078a2ac
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,6 +1,7 @@
 ## [3.0.0]
 - [BREAKING] Fixed [#434](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/434) removed deprecated text style after Flutter 3.22 follow [migration guide](https://docs.flutter.dev/release/breaking-changes/3-19-deprecations#texttheme)
 - Updated minimum support to dart sdk 2.18.0
+- Fixed [#449](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/449) - Null check operator used on a null value
 
 ## [2.1.1]
 - Fixed [#425](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/425) - Unhandled breaking change in v2.1.0

diff --git a/lib/src/showcase.dart b/lib/src/showcase.dart
@@ -464,6 +464,7 @@ class _ShowcaseState extends State<Showcase> {
 
   void initRootWidget() {
     WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted) return;
       rootWidgetSize = showCaseWidgetState.rootWidgetSize;
       rootRenderObject = showCaseWidgetState.rootRenderObject;
     });

diff --git a/lib/src/showcase_widget.dart b/lib/src/showcase_widget.dart
@@ -157,6 +157,7 @@ class ShowCaseWidgetState extends State<ShowCaseWidget> {
 
   void initRootWidget() {
     WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted) return;
       final rootWidget = context.findAncestorStateOfType<State<WidgetsApp>>();
       rootRenderObject = rootWidget?.context.findRenderObject() as RenderBox?;
       rootWidgetSize = rootWidget == null