fix: 修复资源释放BUG

extensions/max-studio/assets/max-studio/core/res/RemoteSprite.ts

@@ -1,13 +1,22 @@
-import { _decorator, isValid, Sprite } from "cc";
-import { EDITOR } from "cc/env";
+import { isValid } from "cc";
+import { assetManager, ImageAsset, Texture2D } from "cc";
+import { SpriteFrame } from "cc";
 import { UITransform } from "cc";
+import { Sprite } from "cc";
+import { _decorator } from "cc";
+import { EDITOR } from "cc/env";
 import { StringUtils } from "../utils/StringUtils";
-import { RemoteSpriteCache } from "./RemoteSpriteCache";
 import LogUtils from "../utils/LogUtils";
 const { ccclass, property } = _decorator;
 
+const CACHE_EXPIRE_TIME = 30000; // 30s 缓存30s
+const CACHE_CHECK_INTERVAL = 5000; // 5秒检查一次
+
 @ccclass("RemoteSprite")
-export default class RemoteSprite extends Sprite {
+export class RemoteSprite extends Sprite {
+    private static _remoteSpriteCache: Map<string, SpriteFrame> = new Map();
+    private static _loadingSpriteCache: Map<string, Promise<SpriteFrame>> = new Map();
+    private static _checkTimer: NodeJS.Timeout;
     /**
      * 远程图片URL
      */
@@ -42,12 +51,25 @@ export default class RemoteSprite extends Sprite {
         }
     }
 
+    // override set spriteFrame(value: SpriteFrame) {
+    //     super.spriteFrame = value;
+    // }
+
     public onLoad(): void {
         super.onLoad();
         if (EDITOR) {
             return;
         }
-        RemoteSpriteCache.getInstance().checkAndRegisterSprite(this.spriteFrame);
+        if (!RemoteSprite._checkTimer) {
+            RemoteSprite._checkTimer = setInterval(() => {
+                RemoteSprite.checkCache();
+            }, CACHE_CHECK_INTERVAL);
+        }
+
+        if (!StringUtils.isEmpty(this.spriteFrame?.remoteUrl)) {
+            this.spriteFrame.addRef();
+            this.spriteFrame.lastAccessTime = Date.now();
+        }
         if (!StringUtils.isEmpty(this._remoteUrl) && this.spriteFrame?.remoteUrl !== this._remoteUrl) {
             this.loadRemoteSprite(this._remoteUrl).catch((err) => {
                 LogUtils.error("RemoteSprite", `onLoad加载远程图片失败: ${this._remoteUrl}`, err);
@@ -67,14 +89,56 @@ export default class RemoteSprite extends Sprite {
             return;
         }
 
-        this.release();
-        const sp = await RemoteSpriteCache.getInstance().loadSpriteFrame(url);
-        // 检查是否在加载过程中URL发生了变化
-        if (!isValid(this.node, true) || this._remoteUrl !== url || this.spriteFrame?.remoteUrl === url) {
-            RemoteSpriteCache.getInstance().releaseResource(url);
+        if (RemoteSprite._remoteSpriteCache.has(url)) {
+            const sp = RemoteSprite._remoteSpriteCache.get(url);
+            sp.lastAccessTime = Date.now();
+            sp.addRef();
+            this.release();
+            this.spriteFrame = sp;
             return;
         }
+        let loadingPromise: Promise<SpriteFrame> = null;
+        if (RemoteSprite._loadingSpriteCache.has(url)) {
+            loadingPromise = RemoteSprite._loadingSpriteCache.get(url);
+        } else {
+            loadingPromise = new Promise<SpriteFrame>((resolve, reject) => {
+                LogUtils.log("RemoteSprite", `loadRemoteSprite: ${url}`);
+                assetManager.loadRemote(url, (err, asset: ImageAsset) => {
+                    if (err) {
+                        LogUtils.error(`loadRemote error: ${url}`, err);
+                        RemoteSprite._loadingSpriteCache.delete(url);
+                        reject(err);
+                    } else {
+                        try {
+                            asset.addRef();
+                            const texture = new Texture2D();
+                            texture.image = asset;
+                            const spriteFrame = new SpriteFrame();
+                            spriteFrame.texture = texture;
+                            spriteFrame.remoteUrl = url;
+                            RemoteSprite._remoteSpriteCache.set(url, spriteFrame);
+                            RemoteSprite._loadingSpriteCache.delete(url);
+                            resolve(spriteFrame);
+                        } catch (createErr) {
+                            RemoteSprite._loadingSpriteCache.delete(url);
+                            reject(createErr);
+                        }
+                    }
+                });
+            });
+            RemoteSprite._loadingSpriteCache.set(url, loadingPromise);
+        }
 
+        const sp = await loadingPromise;
+        sp.addRef();
+        sp.lastAccessTime = Date.now();
+        // // 检查是否在加载过程中URL发生了变化
+        if (sp && (!isValid(this.node, true) || this._remoteUrl !== url || this.spriteFrame?.remoteUrl === url)) {
+            sp.decRef(false);
+            return;
+        }
+        console.log("loadSpriteFrame:", url);
+        this.release();
         this.spriteFrame = sp;
     }
 
@@ -86,7 +150,7 @@ export default class RemoteSprite extends Sprite {
 
     public release(): void {
         if (!StringUtils.isEmpty(this.spriteFrame?.remoteUrl)) {
-            RemoteSpriteCache.getInstance()?.releaseResource(this.spriteFrame.remoteUrl);
+            this.spriteFrame.decRef(false);
         }
         this.spriteFrame = null;
     }
@@ -95,4 +159,48 @@ export default class RemoteSprite extends Sprite {
         this.release();
         super.onDestroy();
     }
+
+    private static checkCache() {
+        // 检查缓存中是否有已加载的SpriteFrame
+        let clearUrls = [];
+
+        let now = Date.now();
+        for (const [url, spriteFrame] of RemoteSprite._remoteSpriteCache) {
+            if (spriteFrame.refCount <= 0 && spriteFrame.lastAccessTime < now - CACHE_EXPIRE_TIME) {
+                let texture = spriteFrame.texture as Texture2D;
+                let imageAsset: ImageAsset = null;
+
+                // 如果已加入动态合图，必须取原始的Texture2D
+                if (spriteFrame.packable && spriteFrame.original) {
+                    texture = spriteFrame.original._texture as Texture2D;
+                }
+
+                // 获取ImageAsset引用
+                if (texture?.image) {
+                    imageAsset = texture.image;
+                }
+
+                // 先销毁spriteFrame（这会自动处理对texture的引用）
+                if (spriteFrame.isValid) {
+                    spriteFrame.destroy();
+                }
+
+                // 再销毁texture
+                if (texture?.isValid) {
+                    texture.destroy();
+                }
+
+                // 最后减少ImageAsset的引用计数
+                if (imageAsset?.isValid) {
+                    imageAsset.decRef();
+                }
+                clearUrls.push(url);
+            }
+        }
+
+        clearUrls.forEach((url) => {
+            RemoteSprite._remoteSpriteCache.delete(url);
+        });
+        LogUtils.log("清理缓存:", clearUrls.length, RemoteSprite._remoteSpriteCache.size);
+    }
 }