[]ReferenceError: Loading_fly is not defined

var Loading_fly = function (_super) {

    function Loading_fly() {

        Loading_fly.super(this);

        this.onPlay();

    }

    Laya.class(Loading_fly, "Loading_fly", _super)

    var _proto = Loading_fly.prototype;



    _proto.onPlay = function () {

        UIConfig.popupBgAlpha = 0.85;

        UIConfig.closeDialogOnSide = false;

        this.diango = new Laya.Dialog();

        this.diango.width = Laya.stage.width;

        this.diango.height = Laya.stage.height;



        var loading_array = [];

        for(var i = 1; i < 28; i++ ){

            loading_array.push('loading/'+ i +'@2x.png',)

        }

        Laya.Animation.createFrames(loading_array, 'loading')

        this.fly = new Laya.Animation();

        this.fly.play(0, true, 'loading')

        this.bounds = this.fly.getGraphicBounds();

		this.fly.pivot(this.bounds.width / 2, this.bounds.height / 2);

        this.fly.pos(Laya.stage.width / 2, Laya.stage.height / 2);

        this.diango.addChild(this.fly)



        this.diango.show();

        this.diango.popup();

    }



    _proto.onClose = function () {

        this.diango.close();

    }

    return Loading_fly;

}(Laya.Sprite);