UISlider doesn't show in the iOS simulator

cocos2d-x JavaScript
1

Hello everyone, help me find a solution. In my application I want to use the UISlider. In the examples bundled with the framework, there are I need example code for using UISlider. But it works only in the web version of the app. When I compile a project for ios, UISlider does not appear. I many have tried, but I never managed to get it all to work! Please help me find the problem!
PS: I use a translator, sorry for my “broken” English.

var mnemonicModeInterfaceLayer = cc.Layer.extend({
    size: null,
    ctor:function () {
        this._super();
        this.init();
    },
    init: function() {
        this.size = cc.winSize;
        var volume_sldr = new ccui.Slider();
        volume_sldr.setTouchEnabled(true);
        volume_sldr.loadBarTexture(res.volume_slider_path_png);
        volume_sldr.loadSlidBallTextures(res.volume_slider_btn_png, res.volume_slider_btn_png, "");
        volume_sldr.loadProgressBarTexture(res.volume_slider_path_png);
        volume_sldr.x = this.size.width * 955 / 1000;
        volume_sldr.y = this.size.height * 17 / 100;
        volume_sldr.rotation = -90;
        volume_sldr.addEventListener(this.sliderEvent, this);
        this.addChild(volume_sldr, 3);
}});
2

The trial determined that the layout is added to the UISlider element, which has given me the position x and y. Only its width and height 0 even if I specify them when creating the object. Could this mean that it is not loaded to the texture of the object? Then why it works in the web version?

I am a fool! The subject is closed. I did not add the desired image in the resource folder of high quality! The web was used separate the resources folder is of average quality!=D 8 hours of finding mistakes! Whole day wasted! Good luck and no bugs!