Cocos Studio中添加按钮

app.js

var HelloWorldLayer = cc.Layer.extend({
    sprite: null,    ctor: function () {
        //////////////////////////////
        // 1. super init first
        this._super();
        /////////////////////////////
        // 2. add a menu item with "X" image,which is clicked to quit the program
        //    you may modify it.
        // ask the window size
        var size = cc.winSize;
        // 加载Cocos Studio资源
        var mainscene = ccs.load(res.MainScene_json);
        this.addChild(mainscene.node);
        var startButton = ccui.helper.seekWidgetByName(mainscene.node,"Button_1");
        startButton.addTouchEventListener(this.onClick,this);
        return true;
    },    onClick: function (sender,type) {
        switch (type) {
            case ccui.Widget.TOUCH_BEGAN:
 
                break;
            case ccui.Widget.TOUCH_MOVED:
 
                break;
            case ccui.Widget.TOUCH_ENDED:
                console.log("startButtonOnClick");
                cc.director.runScene(new GameScene);

              break;