1

egret/libs/new_wx/MainBase.ts

@@ -115,16 +115,26 @@ export default class MainBase extends eui.UILayer {
         }
     }
 
+    _firstBgLoaded = false;
     loadFirstScreen() {
+        this.loadFirstBG((bitmap: egret.Bitmap) => {
+            const t = Date.now() - window['__startTime__'];
+            console.log(`首屏显示时间：${t}ms`);
+            layers.addFirstBackground(bitmap);
+            this._firstBgLoaded = true;
+            this.check();
+        });
+    }
+
+    loadFirstBG(callback) {
         const onImageLoaded = (e: egret.Event) => {
             const imageLoader: egret.ImageLoader = e.currentTarget;
             const bitmapData: egret.BitmapData = imageLoader.data;
             const texture = new egret.Texture();
             texture._setBitmapData(bitmapData);
             const bitmap = new egret.Bitmap(texture);
-            layers.addFirstBackground(bitmap);
+            callback(bitmap);
         }
-
         const imageLoader = new egret.ImageLoader();
         imageLoader.once(egret.Event.COMPLETE, onImageLoaded, this);
         const url = getResPath() + "resource/assets/startScene/bg.jpg"
@@ -158,13 +168,25 @@ export default class MainBase extends eui.UILayer {
         })
     }
 
-
     /**
      * 创建场景界面
      * Create scene interface
      */
+    _startSceneReady = false;
     protected createGameScene() {
-        layers.removeFirstBackground();
-        SceneCtrl.instance.change(ModuleTypes.START_SCENE);
+        SceneCtrl.instance.change(ModuleTypes.START_SCENE, null, () => {
+            this._startSceneReady = true;
+            this.check();
+        });
+    }
+
+    check() {
+        if (this._startSceneReady && this._firstBgLoaded) {
+            layers.removeFirstBackground();
+            const t = Date.now() - window['__startTime__'];
+            console.log(`start scene显示时间：${t}ms`);
+            //开始场景图集和开始场景背景全部加载完成并显示
+        }
+
     }
 }
\ No newline at end of file

egret/libs/new_wx/ctrls/sceneCtrl.ts

@@ -14,21 +14,21 @@ export default class SceneCtrl {
         this._parent = parent;
     }
 
-    change(type: ModuleTypes, data?) {
+    change(type: ModuleTypes, data?, onComplete?: Function) {
         const cls = this._sceneClassMap[type];
         const scene: Scene = new cls();
         if (!window['development']) {
             Loading.instace.show();
             RES.getResByUrl(`${scene.skinKey.toLowerCase()}_json`, (sheet: egret.SpriteSheet) => {
                 Loading.instace.hide();
-                this.showAfterLoadAtlas(scene, data);
+                this.showAfterLoadAtlas(scene, data, onComplete);
             }, this, RES.ResourceItem.TYPE_SHEET);
         } else {
-            this.showAfterLoadAtlas(scene, data);
+            this.showAfterLoadAtlas(scene, data, onComplete);
         }
     }
 
-    showAfterLoadAtlas(scene: Scene, data) {
+    showAfterLoadAtlas(scene: Scene, data, onComplete: Function) {
         if (this._currentScene) {
             this._currentScene.destroy();
             this._parent.removeChild(this._currentScene);
@@ -36,6 +36,7 @@ export default class SceneCtrl {
         scene.loadSkin();
         scene.start();
         this.addToStage(scene);
+        onComplete && onComplete();
     }
 
     addMask() {

egret/libs/new_wx/views/layers.ts

@@ -15,16 +15,21 @@ class Layers extends eui.UILayer {
         this.addChild(this._topLayer);
     }
 
+    _removeTag: number;
     _bg: egret.Bitmap;
     addFirstBackground(bitmap: egret.Bitmap): any {
-        this._bg = bitmap;
-        this._bottomLayer.addChild(bitmap);
+        if (!this._removeTag) {
+            this._bg = bitmap;
+            this._bottomLayer.addChild(bitmap);
+        }
     }
 
     removeFirstBackground(): any {
-        // if (this._bg)
-        //     this._bottomLayer.removeChild(this._bg);
-        // this._bg = null;
+        this._removeTag = 1;
+        if (this._bg) {
+            this._bottomLayer.removeChild(this._bg);
+            this._bg = null;
+        }
     }
 
     get topLayer() { return this._topLayer }