Cocos2d-x UI開辟之CCControlPotentiometer控件類應用實例

Cocos2d-x UI開辟之CCControlPotentiometer控件類應用實例。本站提示廣大學習愛好者：（Cocos2d-x UI開辟之CCControlPotentiometer控件類應用實例）文章只能為提供參考，不一定能成為您想要的結果。以下是Cocos2d-x UI開辟之CCControlPotentiometer控件類應用實例正文

 CCControlPotentiometer是電位計按鈕，和CCControlSlider的用法很類似。關於控件應用時的一些設置裝備擺設，請拜見文章：UI開辟之控件類-CCControlButton。

bool HelloWorld::init()
{
	bool bRet = false;
	do
	{
		CC_BREAK_IF(!CCLayer::init());

		//CCControlPotentiometer參數是底座，進度條，掌握按鈕圖片資本
		CCControlPotentiometer * potentiometer = CCControlPotentiometer::create("potentiometerTrack.png",
			"potentiometerProgress.png","potentiometerButton.png");
		//設置最年夜值和最小值和初值
		potentiometer->setMaximumValue(100.0);
		potentiometer->setMinimumValue(0.0);
		potentiometer->setValue(50);

		potentiometer->setPosition(ccp(240,160));
		this->addChild(potentiometer);

		//添加事宜監聽
		potentiometer->addTargetWithActionForControlEvents(this,cccontrol_selector(HelloWorld::valueChanged),
			CCControlEventValueChanged);

		bRet = true;
	}
	while(0);

	return bRet;
}

void HelloWorld::valueChanged(CCObject * pSender,CCControlEvent controlEvent)
{
	CCControlPotentiometer * potentiometer = (CCControlPotentiometer *)pSender;
	CCString * string = CCString::createWithFormat("%f",potentiometer->getValue());
	CCLog(string->getCString());
}