fix

src/component/Canvas/CanvasEditor/managers/CanvasManager.js

@@ -1330,7 +1330,7 @@ backgroundObject.scaleY,'CanvasManager resetCanvasSizeByFixedLayer')
     }
     // 解析JSON字符串
     try {
-      const parsedJson = JSON.parse(json);
+      const parsedJson = window.testCanvasJson || JSON.parse(json);
       console.log("加载画布JSON数据:", parsedJson);
 	  this.FixJsonIdLoss(parsedJson);
       this.canvasWidth.value = parsedJson.canvasWidth || this.width;
@@ -1411,7 +1411,7 @@ backgroundObject.scaleY,'CanvasManager resetCanvasSizeByFixedLayer')
               // console.log("图层关联验证结果:", isValidate);
               // 排序
               // 使用LayerSort工具重新排列画布对象（如果可用）
-              await this?.layerManager?.layerSort?.rearrangeObjects();
+              await this?.layerManager?.layerSort?.rearrangeObjectsAsync();
 
               this.layerManager.activeLayerId.value = this.layers.value[0]
                 .children?.length
@@ -1455,15 +1455,21 @@ backgroundObject.scaleY,'CanvasManager resetCanvasSizeByFixedLayer')
 	const layers = json?.layers || [];
 	const objects = json?.canvas?.objects || [];
 	layers.forEach((layer) => {
-		if(!layer.fabricObjects?.length && !layer.fabricObject){
+		if(!layer.fabricObjects?.[0]?.id && !layer.fabricObject?.id){
 			const obj = objects?.find((o) => o.layerId === layer.id);
-			if(!obj) return;
-			layer.fabricObjects = [{
-				id: obj.id,
-				type: obj.type,
-			}]
+			if(obj) {
+				layer.fabricObjects = [{
+					id: obj.id,
+					type: obj.type,
+				}]
+			}
 		}
 	})
+	// 排序
+	objects.sort((a, b) => {
+		if (a.isBackground) return -1;
+		if (b.isBackground) return 1;
+	})
   }