feat: ✨ Adds autoPlayDelay feature to Showcase widget (#538)

Author: little-alei

lib/src/showcase/showcase.dart

@@ -81,6 +81,7 @@ class Showcase extends StatefulWidget {
     this.showArrow = true,
     this.onTargetClick,
     this.disposeOnTap,
+    this.autoPlayDelay,
     this.movingAnimationDuration = const Duration(milliseconds: 2000),
     this.disableMovingAnimation,
     this.disableScaleAnimation,
@@ -184,6 +185,7 @@ class Showcase extends StatefulWidget {
     this.scrollLoadingWidget = Constants.defaultProgressIndicator,
     this.onTargetClick,
     this.disposeOnTap,
+    this.autoPlayDelay,
     this.movingAnimationDuration = Constants.defaultAnimationDuration,
     this.disableMovingAnimation,
     this.targetPadding = EdgeInsets.zero,
@@ -346,6 +348,9 @@ class Showcase extends StatefulWidget {
   /// Default to [Duration(milliseconds: 2000)]
   final Duration movingAnimationDuration;
 
+  /// The delay before the next play start.
+  final Duration? autoPlayDelay;
+
   /// Triggered when default tooltip is tapped
   final VoidCallback? onToolTipClick;
 

lib/src/showcase/showcase_view.dart

@@ -424,7 +424,12 @@ class ShowcaseView {
 
     if (autoPlay) {
       _cancelTimer();
-      _timer = Timer(autoPlayDelay, () => next(force: true));
+      // Showcase is first.
+      final config = _getCurrentActiveControllers.firstOrNull?.config;
+      _timer = Timer(
+        config?.autoPlayDelay ?? autoPlayDelay,
+        () => next(force: true),
+      );
     }
   }