更改

assets/Component/HTMLRichText/HTMLRichText.ts

@@ -34,6 +34,11 @@ export class HTMLRichText extends Component {
     protected start() {
     }
 
+    imgAssets: ImageAsset = null;
+    t2d: Texture2D = new Texture2D();
+    sf: SpriteFrame = new SpriteFrame();
+
+
     async setTxt(html: string) {
 
         if (!html) {
@@ -66,15 +71,12 @@ export class HTMLRichText extends Component {
 
         if (!canvas) return;
 
-        // document.body.appendChild(canvas);
-
-        const t2d = new Texture2D();
-        t2d.image = new ImageAsset(canvas);
+        this.imgAssets = new ImageAsset(canvas);
 
-        const sf = new SpriteFrame();
-        sf.texture = t2d;
+        this.t2d.image = this.imgAssets;
+        this.sf.texture = this.t2d;
 
-        this.node.getComponent(Sprite).spriteFrame = sf;
+        this.node.getComponent(Sprite).spriteFrame = this.sf;
 
         this.node.getComponent(UITransform).setContentSize(canvas.width, canvas.height);
 
@@ -82,6 +84,12 @@ export class HTMLRichText extends Component {
 
     }
 
+    onDestroy() {
+        this.imgAssets.destroy();
+        this.t2d.destroy();
+        this.sf.destroy();
+    }
+
 }