收集整理的两个进度条效果,第一个常用于技能冷却，第二个用于加载进度或血量之类

bool HelloWorld::init()
{if ( !CCLayer::init() ){return false;}CCSprite *s2=CCSprite::create("pa2.png");s2->setPosition(ccp(200,200));addChild(s2,0);CCSprite *s=CCSprite::create("pa1.png");CCProgressTimer *pt=CCProgressTimer::create(s);pt->setPosition(ccp(200,200));//转圈的CD实现pt->setType(cocos2d::CCProgressTimerType(kCCProgressTimerTypeRadial));//从中间到外的出现this->addChild(pt,1);CCProgressTo *t=CCProgressTo::create(8,100);pt->runAction(CCRepeatForever::create(t));CCSize size = CCDirector::sharedDirector()->getVisibleSize();CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin();// 设置进度条的背景图片 我们把他放到屏幕下方的1/5处   CCSprite* loadbackimg=CCSprite::create("lodingbg.png");loadbackimg->setPosition(ccp(size.width/2 + origin.x,size.height/5 + origin.y));this->addChild(loadbackimg,1);// 添加进度条CCSprite* loadimg=CCSprite::create("longding.png");CCProgressTimer* pt2 = CCProgressTimer::create(loadimg);pt2->setType(kCCProgressTimerTypeBar);// 设置成横向的//可以看作是按矩形显示效果的进度条类型pt2->setMidpoint(ccp(0,1));   // 设置进度方向pt2->setBarChangeRate(ccp(0,1));  // 设置进度为水平还是垂直方向//重新设置锚点pt2->setPosition(ccp(size.width/2 + origin.x,size.height/5 + origin.y-5));pt2->setPercentage(10);this->addChild(pt2,2,1);//为该层设置定时器  this->scheduleUpdate();  return true;
}void HelloWorld::update(float dt)
{  // 刷新进度CCProgressTimer* pt=(CCProgressTimer*)this->getChildByTag(1);float now=pt->getPercentage();if(now == 100){now = 0;}pt->setPercentage(now + 1);
}