Hello,

I can indeed. How much Cocos2d-x you already know

I know the basic. I already tried to create some build in ui components, switch between scenes, transform sprites, basic animations, play sounds, perform actions.

I would say learn how to do the following then we can move onto the next steps for a toggle button.

• Create and draw a button
• Change image after creation

I can not think or find a way how to change an image of ui::button after creation. Is this even possible? Should I use MenuItemImage instead of ui::button. Thanks for helping me out.

Try doing .loadtexture

Ok, I managed to change the sprite. Ho do I pass my button to touch listener function?

Make it a object in the header file so it can be accessed anywhere in the cpp file.

Looks like I finally created this button:

//MainMenuScene.h
Button *sound;
bool isSoundOn;

//MainMenuScene.cpp
bool MainMenuScene::init(){
bool isSoundOn = true;
isSoundOn = true;
sound = Button::create("SoundOn.png", "SoundOnSelected.png");
sound->setPosition(Vec2(visibleSize.width * 0.2 + origin.x, visibleSize.height * 0.3));
this->addChild(sound, 2);
sound->addTouchEventListener(CC_CALLBACK_2(MainMenuScene::touchFx, this));
sound->setTag(MAIN_MENU_SOUND_BUTTON_TAG);
}

void MainMenuScene::touchFx(Ref *sender, Widget::TouchEventType type) {
	Node *node = (Node*) sender;
	switch(type) {
		case Widget::TouchEventType::ENDED:
			if(MAIN_MENU_SOUND_BUTTON_TAG == node->getTag()) {
				if(isSoundOn == true) {
					sound->loadTextures("SoundOff.png", "SoundOffSelected.png");
					isSoundOn = false;
					CocosDenshion::SimpleAudioEngine::getInstance()->stopBackgroundMusic();
				}
				else if(isSoundOn == false) {
					sound->loadTextures("SoundOn.png", "SoundOnSelected.png");
					isSoundOn = true;
					CocosDenshion::SimpleAudioEngine::getInstance()->playBackgroundMusic("music.mp3", true);
				}
			}
		default:
			break;
	}
}

>What is the proper way to implement this?
>Is it possible to avoid global variables?
>How to save sound button state that when I reopen the game it keeps my previous choice?

Having variables in your class header is fine.

This is how you store data https://www.youtube.com/watch?v=_FYsuSFKCZU