滑动条slider

#include"ui/CocosGUI.h"
using namespace ui;  

  Text* displayValudLabel = Text::create("轻易动滑块","Marker Felt.ttf", 48);
    displayValudLabel->setPosition(Vec2());
    this->addChild(displayValudLabel);
    auto slider = Slider::create();
    slider->loadBarTexture("sliderTrack.png");
    //设置滑动条的滚动球文理
    slider->loadSlidBallTextures("sliderball.png", "sliderball.png", "");
    //设置处理滑动条的进度条文理
    slider->loadProgressBarTexture("sliderprogess.png");
    slider->setPosition(Vec2(visibleSize.width / 2, visibleSize.height));
    //添加侦听事件
    slider->addEventListener([=](Ref *pSender, Slider::EventType type){
    if (type ==Slider::EventType::ON_PERCENTAGE_CHANGED)
    {
        //获取滑动条百分比
        std::string value = StringUtils::format("Prent=%d", slider->getParent());
        //设置到TextLabel中
        displayValudLabel->setString(value);
    }
    });

来自为知笔记(Wiz)