1 typedef enum {
2     /// Radial Counter-Clockwise
3     kCCProgressTimerTypeRadial,
4     /// Bar
5     kCCProgressTimerTypeBar,
6 } CCProgressTimerType;

1 CCSize wSize = CCDirector::sharedDirector()->getWinSize();
2     progressTimer = CCProgressTimer::create(CCSprite::create("progress.gif"));
3     progressTimer->setType(kCCProgressTimerTypeRadial);
4     // 默认的情况下，环形渐变的方向是：顺时针
5     // 改变其渐变的方向 Makes the ridial CCW (逆时针)
6     progressTimer->setReverseProgress(true);
7     progressTimer->setPosition(wSize.width/2,wSize.height/2);
8     this->addChild(progressTimer);

 1 CCSize wSize = CCDirector::sharedDirector()->getWinSize();
 2     progressTimer = CCProgressTimer::create(CCSprite::create("progress.gif"));
 3     progressTimer->setType(kCCProgressTimerTypeBar);
 4
 5     //从左到右
 6     progressTimer->setMidpoint(ccp(0, 0.5));
 7     progressTimer->setBarChangeRate(ccp(1, 0));
 8
 9     //从右到左
10 //    progressTimer->setMidpoint(ccp(1, 0.5));
11 //    progressTimer->setBarChangeRate(ccp(1, 0));
12
13     //从上到下
14 //    progressTimer->setMidpoint(ccp(0.5, 1));
15 //    progressTimer->setBarChangeRate(ccp(0, 1));
16
17     //从下到上
18 //    progressTimer->setMidpoint(ccp(0.5, 0));
19 //    progressTimer->setBarChangeRate(ccp(0, 1));
20
21     progressTimer->setPosition(wSize.width/2,wSize.height/2);
22     this->addChild(progressTimer);

1 CCProgressTo *progressTo = CCProgressTo::create(2.0, 100);
2     //等价于：
3     //CCProgressFromTo *progressFromTo = CCProgressFromTo::create(2.0, 0, 100);
4     progressTimer->runAction(CCRepeatForever::create(progressTo));

1 this->scheduleUpdate();

1 void HelloWorld::update(float dt)
2 {
3     float percentage = progressTimer->getPercentage();
4
5     if (percentage < 100) {
6         percentage += 1;
7         progressTimer->setPercentage(percentage);
8     }
9 }