From 7d8f7a726b39353445c61e36402cba1919c5b03e Mon Sep 17 00:00:00 2001
From: Nick Fisher <nick.fisher@avinium.com>
Date: Wed, 2 Apr 2025 22:27:36 +0800
Subject: [PATCH] properly null out texture references on disposal

---
 .../lib/src/widgets/src/thermion_texture_widget.dart       | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/thermion_flutter/thermion_flutter/lib/src/widgets/src/thermion_texture_widget.dart b/thermion_flutter/thermion_flutter/lib/src/widgets/src/thermion_texture_widget.dart
index f334b997..83f4cf21 100644
--- a/thermion_flutter/thermion_flutter/lib/src/widgets/src/thermion_texture_widget.dart
+++ b/thermion_flutter/thermion_flutter/lib/src/widgets/src/thermion_texture_widget.dart
@@ -56,10 +56,12 @@ class _ThermionTextureWidgetState extends State<ThermionTextureWidget> {
 
   @override
   void dispose() {
+    final texture = _texture;
+    _texture = null;
     super.dispose();
     _views.remove(widget.viewer.view);
-    if (_texture != null) {
-      ThermionFlutterPlatform.instance.destroyTextureDescriptor(_texture!);
+    if (texture != null) {
+      ThermionFlutterPlatform.instance.destroyTextureDescriptor(texture!);
     }
     _fpsUpdateTimer?.cancel();
     _states.remove(this);
@@ -131,6 +133,7 @@ class _ThermionTextureWidgetState extends State<ThermionTextureWidget> {
 
       widget.viewer.onDispose(() async {
         var texture = _texture;
+        _texture = null;
         if (mounted) {
           setState(() {});
         }