【creator3.0】示例代码调整

assets/Script/example/ResExample.ts

@@ -1,72 +1,79 @@
+import { assetManager } from "cc";
+import { Sprite } from "cc";
+import { SpriteFrame } from "cc";
+import { Component, Node, Label, Asset, Prefab, _decorator, instantiate, resources } from "cc";
 import ResLoader, { resLoader } from "../res/ResLoader";
 
-const { ccclass, property } = cc._decorator;
+const { ccclass, property } = _decorator;
 
 @ccclass
-export default class NetExample extends cc.Component {
-    @property(cc.Node)
-    attachNode: cc.Node = null;
-    @property(cc.Label)
-    dumpLabel: cc.Label = null;
-    ress: cc.Asset[] = null;
-    remoteRes: cc.Asset = null;
+export default class NetExample extends Component {
+    @property(Node)
+    attachNode: Node | null = null;
+    @property(Label)
+    dumpLabel: Label | null = null;
+    ress: Asset[] | null = null;
+    remoteRes: Asset | null = null;
 
     start() {
     }
 
     onLoadRes() {
-        cc.loader.loadRes("prefabDir/HelloWorld", cc.Prefab, (error: Error, prefab: cc.Prefab) => {
-            if (!error) {
-                cc.instantiate(prefab).parent = this.attachNode;
-            }
-        });
+        // 动态加载资源
+        resources.load("prefabDir/HelloWorld", Prefab,
+            (error, prefab) => {
+                if (!error) {
+                    instantiate(prefab).parent = this.attachNode;
+                }
+            });
     }
 
     onUnloadRes() {
-        this.attachNode.removeAllChildren(true);
-        cc.loader.releaseRes("prefabDir/HelloWorld");
+        // 释放动态加载的资源
+        this.attachNode!.removeAllChildren();
+        resources.release("prefabDir/HelloWorld");
     }
 
     onMyLoadRes() {
-        ResLoader.loadDir("prefabDir", cc.Prefab, (error: Error, prefabs: cc.Prefab[]) => {
+        resLoader.loadDir("prefabDir", Prefab, (error, prefabs) => {
             if (!error) {
                 this.ress = prefabs;
                 for (let i = 0; i < prefabs.length; ++i) {
-                    cc.instantiate(prefabs[i]).parent = this.attachNode;
+                    instantiate(prefabs[i]).parent = this.attachNode;
                 }
             }
         });
     }
 
     onMyUnloadRes() {
-        this.attachNode.removeAllChildren(true);
+        this.attachNode!.removeAllChildren();
         if (this.ress) {
-            for(let item of this.ress) {
-                ResLoader.release(item);
+            for (let item of this.ress) {
+                item.decRef(true);
             }
             this.ress = null;
         }
     }
 
     onLoadRemote() {
-        ResLoader.load("http://tools.itharbors.com/christmas/res/tree.png", (err, res) => {
+        resLoader.load("http://tools.itharbors.com/christmas/res/tree.png", (err, res) => {
             if (err || !res) return;
             this.remoteRes = res;
-            let spriteFrame = new cc.SpriteFrame(res);
-            let node = new cc.Node("tmp");
-            let sprite = node.addComponent(cc.Sprite);
+            let spriteFrame = new SpriteFrame();
+            spriteFrame.texture = res;
+            let node = new Node("tmp");
+            let sprite = node.addComponent(Sprite);
             sprite.spriteFrame = spriteFrame;
             node.parent = this.attachNode;
         })
     }
 
     onUnloadRemote() {
-        this.attachNode.removeAllChildren(true);
-        this.remoteRes.decRef();
+        this.attachNode!.removeAllChildren();
+        this.remoteRes!.decRef();
     }
 
     onDump() {
-        let Loader:any = cc.loader;
-        this.dumpLabel.string = `当前资源总数:${Object.keys(Loader._cache).length}`;
+        this.dumpLabel!.string = `当前资源总数:${assetManager.assets.count}`;
     }
 }