Android-10游戏无法出现LayerColor

var PlayLayer = cc.Layer.extend({
bgSprite:null,
scoreLabel:null,
score:0,
timeoutLabel:null,
timeout:2,
SushiSprites:null,
ctor:function () {
// ////////////////////////////
// 1. super init first
this._super();
var size = cc.winSize;
this.SushiSprites = ];
cc.spriteFrameCache.addSpriteFrames(res.sushi_plist);

    // add bg
    this.bgSprite = new cc.Sprite(res.background_png);
    this.bgSprite.attr({
        x: size.width / 2,
        y: size.height / 2,
        // scale: 0.5,
        rotation: 180
    });
    this.addChild(this.bgSprite, 0);


    this.scoreLabel = new cc.LabelTTF("分数:0", "微软雅黑", 30);
    this.scoreLabel.attr({
        x:size.width/2,
        y:size.height-20
    });
    this.addChild(this.scoreLabel, 5);


    // timeout 60
    this.timeoutLabel = cc.LabelTTF.create("倒计时" + this.timeout, "微软雅黑", 30);
    this.timeoutLabel.x = 20;
    this.timeoutLabel.y = size.height - 20;
    this.addChild(this.timeoutLabel, 5);


    // schedule(callback_fn, interval, repeat, delay)
    this.schedule(this.update,1,16*1024,1);


    this.schedule(this.timer,1,this.timeout,1);


    return true;
},


update : function() {
    this.addSushi();
    this.removeSushi();
},


timer : function() {


    if (this.timeout == 0) {
        var gameOver = new cc.LayerColor(cc.color(225,225,225,100));
        var size = cc.winSize;
        var titleLabel = new cc.LabelTTF("游戏结束", "微软雅黑", 38);
        titleLabel.attr({
            x:size.width/2 ,
            y:size.height/2
        });
        gameOver.addChild(titleLabel, 5);
        var TryAgainItem = new cc.MenuItemFont(
            "再试一次",
            function () {
                cc.log("Menu is clicked!");
                // var transition= cc.TransitionFade(1, new

// PlayScene(),cc.color(255,255,255,255));
cc.director.runScene(new PlayScene());
}, this);
TryAgainItem.attr({
x: size.width/2,
y: size.height / 2 - 60,
anchorX: 0.5,
anchorY: 0.5
});
TryAgainItem.setColor(255,255,255);

        var menu = new cc.Menu(TryAgainItem);
        menu.x = 0;
        menu.y = 0;
        gameOver.addChild(menu, 1);
        this.getParent().addChild(gameOver);


        this.unschedule(this.update);
        this.unschedule(this.timer);
        return;
    }


    this.timeout -=1;
    this.timeoutLabel.setString("" + this.timeout);


},


addSushi : function() {


    var sushi = new SushiSprite("#sushi_1n.png");
    // var sushi = new cc.Sprite("#sushi_1n.png");
    var size = cc.winSize;


    var x = sushi.width+size.width/2*cc.random0To1();
    sushi.attr({
     x:x,
        y:size.height - 20
    });


    // sushi.retain();


    this.SushiSprites.push(sushi);
    sushi.index = this.SushiSprites.length;


    this.addChild(sushi,5);


    var dorpAction = cc.MoveTo.create(4, cc.p(sushi.x,-30));
    sushi.runAction(dorpAction);
},




removeSushiByindex : function(dx) {


    if(isNaN(dx)||dx>this.SushiSprites.length){return false;}
    for(var i=0,n=0;i<this.length;i++)
    {
        if(this.SushiSprites*!=this)
        {
            this.SushiSprites=this.SushiSprites*
        }
    }
    this.SushiSprites.length-=1
},


removeSushi : function() {


    for (var i = 0; i < this.SushiSprites.length; i++) {
        cc.log("removeSushi.........");
        if(-30 == this.SushiSprites*.y) {
            this.SushiSprites*.removeFromParent();
            this.SushiSprites* = undefined;
            this.SushiSprites.splice(i,1);
            i= i-1;
        }
    }
},


addScore:function(){
    this.score +=1;
    this.scoreLabel.setString("分数:" + this.score);
}

});

var PlayScene = cc.Scene.extend({
onEnter:function () {
this._super();
var layer = new PlayLayer();
this.addChild(layer);
}
});