Improvement:

- Precache image widget

lib/chat/chat_page.dart

@@ -1,7 +1,7 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-13 14:03:16
- * @LastEditTime : 2022-10-20 00:48:43
+ * @LastEditTime : 2022-10-20 10:52:30
  * @Description  : 
  */
 
@@ -87,7 +87,6 @@ class ChatPage extends StatelessWidget {
                         else {
                           //Return history tile
                           return Padding(
-                            key: ValueKey(state.chatHistory[index].message.contentmd5),
                             padding: const EdgeInsets.symmetric(
                               horizontal: 24,
                               vertical: 8

lib/chat/cubit/chat_cubit.dart

@@ -1,7 +1,7 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-13 14:03:56
- * @LastEditTime : 2022-10-20 00:13:18
+ * @LastEditTime : 2022-10-20 11:04:40
  * @Description  : 
  */
 
@@ -11,6 +11,7 @@ import 'dart:convert';
 import 'package:bloc/bloc.dart';
 import 'package:convert/convert.dart';
 import 'package:crypto/crypto.dart';
+import 'package:flutter/material.dart';
 import 'package:open_file/open_file.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 import 'package:tcp_client/chat/cubit/chat_state.dart';
@@ -78,7 +79,8 @@ class ChatCubit extends Cubit<ChatState> {
     var newHistory = ChatHistory(
       message: msg,
       type: ChatHistoryType.outcome,
-      status: ChatHistoryStatus.sending
+      status: ChatHistoryStatus.sending,
+      preCachedImage: msg.type == MessageType.image ? Image.memory(base64.decode(msg.contentDecoded)) : null
     );
     if(msg.type == MessageType.file) {
       //Remove mock history
@@ -112,7 +114,8 @@ class ChatCubit extends Cubit<ChatState> {
       var history = ChatHistory(
         message: message,
         type: message.senderID == userID ? ChatHistoryType.income : ChatHistoryType.outcome,
-        status: ChatHistoryStatus.done
+        status: ChatHistoryStatus.done,
+        preCachedImage: message.type == MessageType.image ? Image.memory(base64.decode(message.contentDecoded)) : null
       );
       newHistories.add(history);
     }
@@ -208,7 +211,8 @@ class ChatCubit extends Cubit<ChatState> {
         var newHistory = ChatHistory(
           message: response.message,
           type: response.message.senderID == userID ? ChatHistoryType.income : ChatHistoryType.outcome,
-          status: ChatHistoryStatus.done
+          status: ChatHistoryStatus.done,
+          preCachedImage: response.message.type == MessageType.image ? Image.memory(base64.decode(response.message.contentDecoded)) : null
         );
         var newHistoryList = [newHistory, ...state.chatHistory];
         emit(state.copyWith(chatHistory: newHistoryList));
@@ -223,7 +227,8 @@ class ChatCubit extends Cubit<ChatState> {
           var newHistory = ChatHistory(
             message: message,
             type: message.senderID == userID ? ChatHistoryType.income : ChatHistoryType.outcome,
-            status: ChatHistoryStatus.done
+            status: ChatHistoryStatus.done,
+            preCachedImage: message.type == MessageType.image ? Image.memory(base64.decode(message.contentDecoded)) : null
           );
           fetchedHistories.insert(0, newHistory);
         }

lib/chat/model/chat_history.dart

@@ -1,11 +1,12 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-14 14:55:20
- * @LastEditTime : 2022-10-18 15:19:46
+ * @LastEditTime : 2022-10-20 11:01:03
  * @Description  : 
  */
 
 import 'package:equatable/equatable.dart';
+import 'package:flutter/material.dart';
 import 'package:tcp_client/repositories/common_models/message.dart';
 
 enum ChatHistoryType { outcome, income }
@@ -15,22 +16,26 @@ class ChatHistory extends Equatable {
   final Message message;
   final ChatHistoryType type;
   final ChatHistoryStatus status;
+  final Image? preCachedImage;
 
   const ChatHistory({
     required this.message,
     required this.type,
-    required this.status
+    required this.status,
+    this.preCachedImage,
   });
 
   ChatHistory copyWith({
     Message? message,
     ChatHistoryType? type,
-    ChatHistoryStatus? status
+    ChatHistoryStatus? status,
+    Image? preCachedImage
   }) {
     return ChatHistory(
       message: message ?? this.message,
       type: type ?? this.type,
-      status: status ?? this.status
+      status: status ?? this.status,
+      preCachedImage: preCachedImage ?? this.preCachedImage
     );
   }
 

lib/chat/view/common/image_box.dart

@@ -1,7 +1,7 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-14 17:04:20
- * @LastEditTime : 2022-10-20 00:47:44
+ * @LastEditTime : 2022-10-20 11:05:37
  * @Description  : 
  */
 
@@ -24,7 +24,7 @@ class ImageBox extends StatelessWidget {
       onTap: (){},
       child: Container(
         constraints: const BoxConstraints(maxWidth: 500, maxHeight: 250),
-        child: Image.memory(base64Decode(history.message.contentDecoded)),
+        child: history.preCachedImage ?? Image.memory(base64Decode(history.message.contentDecoded)),
       ),
     );
   }

lib/main.dart

@@ -1,7 +1,7 @@
 /*
  * @Author       : Linloir
  * @Date         : 2022-10-10 08:04:53
- * @LastEditTime : 2022-10-19 11:17:44
+ * @LastEditTime : 2022-10-20 10:34:41
  * @Description  : 
  */
 import 'package:easy_debounce/easy_debounce.dart';
@@ -38,12 +38,12 @@ void main() async {
     skipTaskbar: false,
     titleBarStyle: TitleBarStyle.normal
   );
-  windowManager.waitUntilReadyToShow(windowOptions, () async {
+  await windowManager.waitUntilReadyToShow(windowOptions, () async {
-    await windowManager.show();
-    await windowManager.focus();
     if(posX != null && posY != null) {
       await windowManager.setPosition(Offset(posX, posY));
     }
+    await windowManager.show();
+    await windowManager.focus();
   });
 
   //---------------------------------------------------------------------