- #include "cocos-ext.h"
- USING_NS_CC_EXT;
-
- CCScene * circleButton::scene()
- {
- CCScene * s = CCScene::create();
- CCLayer * layer = circleButton::create();
- s->addChild(layer);
- return s;
- }
- bool circleButton::init()
- {
- bool bRet = false;
- do
- {
- CC_BREAK_IF(!CCLayer::init());
-
- //圆形按钮;
- CCControlPotentiometer * potentiometer = CCControlPotentiometer::create("poleBg.png",//底座:
- "bgup.png",//进度条;
- "pole.png");//中心按钮;
- potentiometer->setPosition(ccp(200,200));
- addChild(potentiometer);
- //添加监听事件:监听事件不加也可以,如果想要迷彩灯效果的话,也可以用定时器来完成:schedule();
- potentiometer->addTargetWithActionForControlEvents(
- this,//添加onvalueChanged用来监听音量控制按钮的数值变化;音量值的范围是0-1;
- cccontrol_selector(circleButton::onValueChanged),CCControlEventValueChanged);//音量改变;
-
- bRet = true;
- } while (0);
-
-
- return bRet;
- }
- //回调函数;
- void circleButton::onValueChanged(CCObject*pSender,CCControlEvent event)
- {
- //通过pSender参数获取按钮;
- CCControlPotentiometer* potentiometer = (CCControlPotentiometer *)pSender;
- CCString * valueStr = CCString::createWithFormat("%f",potentiometer->getValue());//转为数值输出;
- CCLog(valueStr->getCString());
- }