FIX: need to dispose of player and resources

lib/splash_video_controller.dart

@@ -32,7 +32,9 @@ class SplashVideoController {
   /// [loopVideo] - When true, video will loop infinitely until manually stopped
   SplashVideoController({
     this.loopVideo = false,
-  });
+  }) {
+    _activeControllers.add(this);
+  }
 
   /// Whether the video should loop infinitely
   ///
@@ -45,6 +47,37 @@ class SplashVideoController {
   Player? _player;
   bool _isDisposed = false;
 
+  // Track all active controllers for cleanup during hot restart
+  static final Set<SplashVideoController> _activeControllers = {};
+
+  /// Disposes all active SplashVideoController instances
+  ///
+  /// Call this before hot restart to prevent "Callback invoked after it has
+  /// been deleted" crashes. This stops all MPV callback activity before the
+  /// Dart isolate is destroyed.
+  ///
+  /// Usage in main.dart:
+  /// ```dart
+  /// // In a StatefulWidget wrapping your app:
+  /// @override
+  /// void reassemble() {
+  ///   SplashVideoController.disposeAll();
+  ///   super.reassemble();
+  /// }
+  /// ```
+  static Future<void> disposeAll() async {
+    final controllers = Set<SplashVideoController>.from(_activeControllers);
+    for (final controller in controllers) {
+      controller.dispose();
+    }
+    _activeControllers.clear();
+  }
+
+  /// Returns the number of active (non-disposed) controllers
+  ///
+  /// Useful for debugging resource leaks
+  static int get activeControllerCount => _activeControllers.length;
+
   /// Access to the underlying media_kit Player instance
   ///
   /// Provides full control over video playback including:
@@ -103,11 +136,30 @@ class SplashVideoController {
 
   /// Disposes the controller and releases resources
   ///
-  /// Should be called when the splash screen is no longer needed
+  /// This method pauses the player first to stop MPV callback activity,
+  /// then disposes after a short delay. This helps prevent crashes during
+  /// hot restart when the Dart isolate is destroyed while MPV's native
+  /// thread is still running.
+  ///
+  /// Should be called when the splash screen is no longer needed.
   void dispose() {
     if (_isDisposed) return;
     _isDisposed = true;
-    _player?.dispose();
+    _activeControllers.remove(this);
+
+    final player = _player;
+    if (player != null) {
+      // Pause first to stop callback activity before disposing
+      player.pause().then((_) {
+        // Small delay to let MPV thread settle before disposal
+        Future.delayed(const Duration(milliseconds: 50), () {
+          player.dispose();
+        });
+      }).catchError((_) {
+        // If pause fails, dispose anyway
+        player.dispose();
+      });
+    }
     _player = null;
   }
 

pubspec.yaml

@@ -1,6 +1,6 @@
 name: splash_video
 description: "Simple video splash screen for Flutter applications."
-version: 0.1.3
+version: 0.1.6
 homepage: malloc.io
 
 environment: