Update: 2026-06-25 02:28:33

siro_rider/packages/get/lib/get_navigation/src/snackbar/snackbar_controller.dart

@@ -34,7 +34,7 @@ class SnackbarController {
   /// The animation controller that the route uses to drive the transitions.
   ///
   /// The animation itself is exposed by the [animation] property.
-  late final AnimationController _controller;
+  AnimationController? _controller;
 
   SnackbarStatus? _currentStatus;
 
@@ -88,7 +88,9 @@ class SnackbarController {
   }
 
   void _configureOverlay() {
-    _overlayState = Overlay.of(Get.overlayContext!);
+    final ctx = Get.overlayContext;
+    if (ctx == null) return;
+    _overlayState = Overlay.of(ctx);
     _overlayEntries.clear();
     _overlayEntries.addAll(_createOverlayEntries(_getBodyWidget()));
     _overlayState!.insertAll(_overlayEntries);
@@ -96,8 +98,7 @@ class SnackbarController {
   }
 
   void _configureSnackBarDisplay() {
-    assert(!_transitionCompleter.isCompleted,
-        'Cannot configure a snackbar after disposing it.');
+    if (_transitionCompleter.isCompleted) return;
     _controller = _createAnimationController();
     _configureAlignment(snackbar.snackPosition);
     _snackbarStatus = snackbar.snackbarStatus;
@@ -106,7 +107,7 @@ class SnackbarController {
     _animation = _createAnimation();
     _animation.addStatusListener(_handleStatusChanged);
     _configureTimer();
-    _controller.forward();
+    _controller?.forward();
   }
 
   void _configureTimer() {
@@ -126,11 +127,15 @@ class SnackbarController {
   /// the transition controlled by the animation controller created by
   /// `createAnimationController()`.
   Animation<Alignment> _createAnimation() {
-    assert(!_transitionCompleter.isCompleted,
-        'Cannot create a animation from a disposed snackbar');
+    final ctrl = _controller;
+    if (ctrl == null) {
+      return AlignmentTween(begin: _initialAlignment, end: _endAlignment).animate(
+        kAlwaysCompleteAnimation,
+      );
+    }
     return AlignmentTween(begin: _initialAlignment, end: _endAlignment).animate(
       CurvedAnimation(
-        parent: _controller,
+        parent: ctrl,
         curve: snackbar.forwardAnimationCurve,
         reverseCurve: snackbar.reverseAnimationCurve,
       ),
@@ -152,9 +157,10 @@ class SnackbarController {
   }
 
   Animation<double> _createBlurFilterAnimation() {
+    final ctrl = _controller!;
     return Tween(begin: 0.0, end: snackbar.overlayBlur).animate(
       CurvedAnimation(
-        parent: _controller,
+        parent: ctrl,
         curve: const Interval(
           0.0,
           0.35,
@@ -165,11 +171,12 @@ class SnackbarController {
   }
 
   Animation<Color?> _createColorOverlayColor() {
+    final ctrl = _controller!;
     return ColorTween(
             begin: const Color(0x00000000), end: snackbar.overlayColor)
         .animate(
       CurvedAnimation(
-        parent: _controller,
+        parent: ctrl,
         curve: const Interval(
           0.0,
           0.35,
@@ -300,18 +307,21 @@ class SnackbarController {
   }
 
   void _removeEntry() {
-    assert(
-      !_transitionCompleter.isCompleted,
-      'Cannot remove entry from a disposed snackbar',
-    );
+    if (_transitionCompleter.isCompleted) return;
 
     _cancelTimer();
 
+    final ctrl = _controller;
+    if (ctrl == null) {
+      _removeOverlay();
+      return;
+    }
+
     if (_wasDismissedBySwipe) {
-      Timer(const Duration(milliseconds: 200), _controller.reset);
+      Timer(const Duration(milliseconds: 200), ctrl.reset);
       _wasDismissedBySwipe = false;
     } else {
-      _controller.reverse();
+      ctrl.reverse();
     }
   }
 
@@ -320,11 +330,13 @@ class SnackbarController {
       element.remove();
     }
 
-    assert(!_transitionCompleter.isCompleted,
-        'Cannot remove overlay from a disposed snackbar');
-    _controller.dispose();
+    if (_controller != null) {
+      _controller!.dispose();
+    }
     _overlayEntries.clear();
-    _transitionCompleter.complete();
+    if (!_transitionCompleter.isCompleted) {
+      _transitionCompleter.complete();
+    }
   }
 
   Future<void> _show() {
@@ -332,6 +344,8 @@ class SnackbarController {
     return future;
   }
 
+  bool get _isConfigured => _controller != null;
+
   static void cancelAllSnackbars() {
     _snackBarQueue._cancelAllJobs();
   }
@@ -366,7 +380,8 @@ class _SnackBarQueue {
   }
 
   Future<void> _closeCurrentJob() async {
-    if (_currentSnackbar == null) return;
-    await _currentSnackbar!.close();
+    final current = _currentSnackbar;
+    if (current == null || !current._isConfigured) return;
+    await current.close();
   }
 }