From e2515520d6692f31572d064aaf17346086bd8ae3 Mon Sep 17 00:00:00 2001
From: lifegpc <g1710431395@gmail.com>
Date: Tue, 29 Oct 2024 11:23:30 +0000
Subject: [PATCH] Fix image cache cause copy image not works

---
 lib/provider/dio_image_provider.dart | 14 ++++++++++----
 lib/viewer/single.dart               |  5 +++--
 2 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/lib/provider/dio_image_provider.dart b/lib/provider/dio_image_provider.dart
index cc10f61..5e50fc6 100644
--- a/lib/provider/dio_image_provider.dart
+++ b/lib/provider/dio_image_provider.dart
@@ -29,7 +29,7 @@ class DioImage extends ImageProvider<DioImage> {
   /// The arguments [url] and [scale] must not be null.
   /// [dio] will be the default [Dio] if not set.
   DioImage.string(String url,
-      {this.scale = 1.0, this.headers, this.onData, Dio? dio})
+      {this.scale = 1.0, this.headers, this.onData, Dio? dio, this.key})
       : dio = dio ?? defaultDio,
         url = Uri.parse(url);
 
@@ -37,7 +37,8 @@ class DioImage extends ImageProvider<DioImage> {
   ///
   /// The arguments [url] and [scale] must not be null.
   /// [dio] will be the default [Dio] if not set.
-  DioImage(this.url, {this.scale = 1.0, this.headers, this.onData, Dio? dio})
+  DioImage(this.url,
+      {this.scale = 1.0, this.headers, this.onData, this.key, Dio? dio})
       : dio = dio ?? defaultDio;
 
   /// The URL from which the image will be fetched.
@@ -56,6 +57,8 @@ class DioImage extends ImageProvider<DioImage> {
 
   final void Function(Uint8List, Headers, String)? onData;
 
+  final Key? key;
+
   @override
   Future<DioImage> obtainKey(ImageConfiguration configuration) {
     return SynchronousFuture<DioImage>(this);
@@ -164,11 +167,14 @@ class DioImage extends ImageProvider<DioImage> {
     if (other.runtimeType != runtimeType) {
       return false;
     }
-    return other is DioImage && other.url == url && other.scale == scale;
+    return other is DioImage &&
+        other.url == url &&
+        other.scale == scale &&
+        other.key == key;
   }
 
   @override
-  int get hashCode => Object.hash(url, scale);
+  int get hashCode => Object.hash(url, scale, key);
 
   @override
   String toString() =>
diff --git a/lib/viewer/single.dart b/lib/viewer/single.dart
index 82820ac..84e8a79 100644
--- a/lib/viewer/single.dart
+++ b/lib/viewer/single.dart
@@ -47,6 +47,7 @@ class SinglePageViewer extends StatefulWidget {
 
 class _SinglePageViewer extends State<SinglePageViewer>
     with ThemeModeWidget, IsTopWidget2 {
+  final Key _key = GlobalKey();
   late PageController _pageController;
   late int _index;
   late GalleryData? _data;
@@ -143,8 +144,8 @@ class _SinglePageViewer extends State<SinglePageViewer>
           _photoViewController.reset();
         }
         return PhotoViewGalleryPageOptions(
-          imageProvider: DioImage.string(api.getFileUrl(f.id), dio: dio,
-              onData: (data, headers, url) {
+          imageProvider: DioImage.string(api.getFileUrl(f.id),
+              dio: dio, key: _key, onData: (data, headers, url) {
             _imgData[index] = (data, headers.value("content-type"), url);
           }),
           initialScale: PhotoViewComputedScale.contained,