example project fixes

2023-11-07 13:14:46 +08:00
parent 2882f9739d
commit 60ed8443b2
2 changed files with 8 additions and 5 deletions
--- a/example/lib/scene_menu.dart
+++ b/example/lib/scene_menu.dart
@@ -23,7 +23,8 @@ class _SceneMenuState extends State<SceneMenu> {
  @override
  void didUpdateWidget(SceneMenu oldWidget) {
    super.didUpdateWidget(oldWidget);
-    if (widget.controller != oldWidget.controller ||
+    if (widget.controller != null &&
+            widget.controller != oldWidget.controller ||
        widget.controller!.hasViewer != oldWidget.controller!.hasViewer) {
      setState(() {});
    }