fix: 🐛Fixed timer not disposing when tapped on TooltipActionButton (#506)

Author: Sahil-Simform

CHANGELOG.md

@@ -2,6 +2,8 @@
 - Feature [#500](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/500) -
   Added `onDismiss` callback in `ShowCaseWidget` which will trigger whenever `onDismiss` method is
   called
+- Fixed [#506](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/506) - Timer
+  was not canceling when tapped on `TooltipActionButton` which may cause issue when `autoPlay` is ON
 
 ## [4.0.1]
 - Fixed [#493](https://github.com/SimformSolutionsPvtLtd/flutter_showcaseview/issues/493) - ShowCase.withWidget not showing issue 

lib/src/showcase.dart

@@ -609,6 +609,9 @@ class _ShowcaseState extends State<Showcase> {
             Duration(seconds: showCaseWidgetState.autoPlayDelay.inSeconds),
             _nextIfAny);
       }
+    } else if (timer?.isActive ?? false) {
+      timer?.cancel();
+      timer = null;
     }
   }
 
@@ -651,6 +654,13 @@ class _ShowcaseState extends State<Showcase> {
     return widget.child;
   }
 
+  @override
+  void dispose() {
+    timer?.cancel();
+    timer = null;
+    super.dispose();
+  }
+
   void initRootWidget() {
     WidgetsBinding.instance.addPostFrameCallback((_) {
       if (!mounted) return;