From 5364aecf745cea2b524bc286ac9cf22bbff50052 Mon Sep 17 00:00:00 2001
From: LittleSheep <littlesheep.code@hotmail.com>
Date: Sun, 10 Nov 2024 22:56:18 +0800
Subject: [PATCH] :zap: Optimize image cache size

---
 lib/main.dart                               |  5 +++
 lib/widgets/attachment/attachment_item.dart | 12 ++++---
 lib/widgets/navigation/app_background.dart  | 35 ++++++++++++++-------
 3 files changed, 37 insertions(+), 15 deletions(-)

diff --git a/lib/main.dart b/lib/main.dart
index 7186d3e..ab347d1 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -1,6 +1,7 @@
 import 'package:croppy/croppy.dart';
 import 'package:easy_localization/easy_localization.dart';
 import 'package:easy_localization_loader/easy_localization_loader.dart';
+import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:provider/provider.dart';
 import 'package:relative_time/relative_time.dart';
@@ -15,6 +16,10 @@ void main() async {
   WidgetsFlutterBinding.ensureInitialized();
   await EasyLocalization.ensureInitialized();
 
+  if (!kReleaseMode) {
+    debugInvertOversizedImages = true;
+  }
+
   runApp(const SolianApp());
 }
 
diff --git a/lib/widgets/attachment/attachment_item.dart b/lib/widgets/attachment/attachment_item.dart
index 8d05b81..ead8491 100644
--- a/lib/widgets/attachment/attachment_item.dart
+++ b/lib/widgets/attachment/attachment_item.dart
@@ -23,10 +23,14 @@ class AttachmentItem extends StatelessWidget {
       case 'image':
         return Hero(
           tag: 'attachment-${data.rid}-$heroTag',
-          child: UniversalImage(
-            sn.getAttachmentUrl(data.rid),
-            fit: BoxFit.cover,
-          ),
+          child: LayoutBuilder(builder: (context, constraints) {
+            return UniversalImage(
+              sn.getAttachmentUrl(data.rid),
+              fit: BoxFit.cover,
+              cacheHeight: constraints.maxHeight,
+              cacheWidth: constraints.maxWidth,
+            );
+          }),
         );
       default:
         return const Placeholder();
diff --git a/lib/widgets/navigation/app_background.dart b/lib/widgets/navigation/app_background.dart
index 16d5e7a..2b2bbc0 100644
--- a/lib/widgets/navigation/app_background.dart
+++ b/lib/widgets/navigation/app_background.dart
@@ -10,6 +10,8 @@ class AppBackground extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
+    final devicePixelRatio = MediaQuery.of(context).devicePixelRatio;
+
     return ScaffoldMessenger(
       child: FutureBuilder(
         future:
@@ -21,17 +23,28 @@ class AppBackground extends StatelessWidget {
             if (file.existsSync()) {
               return Container(
                 color: Theme.of(context).colorScheme.surface,
-                child: Container(
-                  decoration: BoxDecoration(
-                    backgroundBlendMode: BlendMode.darken,
-                    color: Theme.of(context).colorScheme.surface,
-                    image: DecorationImage(
-                      opacity: 0.2,
-                      image: FileImage(file),
-                      fit: BoxFit.cover,
-                    ),
-                  ),
-                  child: child,
+                child: LayoutBuilder(
+                  builder: (context, constraints) {
+                    return Container(
+                      decoration: BoxDecoration(
+                        backgroundBlendMode: BlendMode.darken,
+                        color: Theme.of(context).colorScheme.surface,
+                        image: DecorationImage(
+                          opacity: 0.2,
+                          image: ResizeImage(
+                            FileImage(file),
+                            width: (constraints.maxWidth * devicePixelRatio)
+                                .round(),
+                            height: (constraints.maxHeight * devicePixelRatio)
+                                .round(),
+                            policy: ResizeImagePolicy.fit,
+                          ),
+                          fit: BoxFit.cover,
+                        ),
+                      ),
+                      child: child,
+                    );
+                  },
                 ),
               );
             }