cocos2dx 按钮随按下切换图标

1、使用MenuItemToggle

auto item4 = MenuItemToggle::createWithCallback(//按钮事件监听CC_CALLBACK_1(HelloWorld::menuCallback, this),//默认按钮图标CCMenuItemImage::create("musicopen.png", "musicopen.png"),//切换按钮图标CCMenuItemImage::create("musicclose.png","musicclose.png"),        nullptr);CCMenu* menu = CCMenu::create(item4, NULL);this->addChild(menu);

2、每次按下两张图标切换一次。