直接上代码

在.h文件里面引用这几个文件

#include "cocos-ext.h"
USING_NS_CC;
USING_NS_CC_EXT;

//滑杆回调
void slideCallback(Object *sender,Control::EventType controlEvent);

.cpp文件

//ControlSlider
//创建controlSlide，第一个参数为拖动前的图片，第二个参数为拖动后的图片，第三个参数为拖动杆
auto slide_control = ControlSlider::create("hpbg.png","hp.png","hpControl.png");
slide_control->setPosition(Point(visibleSize.width/2,visibleSize.height/2));
slide_control->setMinimumValue(0.0f);//设置最小值
slide_control->setMaximumValue(100.0f);//设置最大值
slide_control->setValue(0.0f);//设置初始值
slide_control->setTag(20);
slide_control->addTargetWithActionForControlEvents(this,cccontrol_selector(MenuControl::slideCallback),Control::EventType::VALUE_CHANGED);//设置拖动回调
this->addChild(slide_control,2);

void MenuControl::slideCallback(Object *sender,Control::EventType controlEvent) { auto slide_control = (ControlSlider*)sender;//通过回调参数sender 获得ControlSlider int current_value = slide_control->getValue();//获取slide当前的值 }