程序实例:ProgressTimer实现效果1

首先在工程目录下的Resource文件夹中添加两张图片

                                 

然后定义一个Progress类

在Progress.h中添加下面的代码

#ifndef _Progress_H_

#define _Progress_H_

#include “cocos2d.h”

USING_NS_CC;

class Progress : public CCLayer

{

public:

static CCScene* scene();

bool init();

CREATE_FUNC(Progress);

void scheduleFunc(float dt);

};

#endif

在Progress.cpp中添加下面代码

#include “Progress.h”

CCScene* Progress::scene()

{

CCScene* scene = CCScene::create();

Progress* layer = Progress::create();

scene->addChild(layer);

return scene;

}

bool Progress::init()

{

CCLayer::init();

CCSize winSize = CCDirector::sharedDirector()->getWinSize();

CCPoint center = ccp(winSize.width / 2, winSize.height / 2);

CCSprite* bg = CCSprite::create(“2.png”);

CCSprite* sprite = CCSprite::create(“1.png”);

bg->setPosition(center);

addChild(bg);

CCProgressTimer* progress = CCProgressTimer::create(sprite);

progress->setPosition(center);

addChild(progress);

//设置进度条的模式

//kCCProgressTimerTypeBar表示条形模式

progress->setType(kCCProgressTimerTypeBar);

//设置进度条变化的方向

//ccp(0,1)表示沿着y轴变化

progress->setBarChangeRate(ccp(0,1));

//设置进度条的起始位置

//ccp(0,0)表示下面

progress->setMidpoint(ccp(0,0));

//设置进度条的ID

progress->setTag(100);

//创建一个定时器

schedule(schedule_selector(Progress::scheduleFunc), 0.1f);

return true;

}

void Progress::scheduleFunc(float dt)

{

//通过进度条的ID得到进度条

CCProgressTimer* progress = (CCProgressTimer*)getChildByTag(100);

//设置progress的进度,每调用一次进度加一

progress->setPercentage(progress->getPercentage() + 1);

//当进度大于或者等于100时

if(progress->getPercentage() >= 100)

{

//终止定时器

unscheduleAllSelectors();

}

}

执行结果:

      

                        

                        

在Progress.cpp中添加下面的代码

#include “Progress.h”

CCScene* Progress::scene()

{

CCScene* scene = CCScene::create();

Progress* layer = Progress::create();

scene->addChild(layer);

return scene;

}

bool Progress::init()

{

CCLayer::init();

//设置背景颜色为白色

CCLayerColor* layer = CCLayerColor::create(ccc4(255, 255, 255, 255));

addChild(layer);

CCSize winSize = CCDirector::sharedDirector()->getWinSize();

CCPoint center = ccp(winSize.width / 2, winSize.height / 2);

CCSprite* bg = CCSprite::create(“4.png”);

CCSprite* sprite = CCSprite::create(“3.png”);

bg->setPosition(center);

addChild(bg);

CCProgressTimer* progress = CCProgressTimer::create(sprite);

progress->setPosition(center);

addChild(progress);

//设置进度条的ID

progress->setTag(100);

//创建一个定时器

schedule(schedule_selector(Progress::scheduleFunc), 0.1f);

return true;

}

void Progress::scheduleFunc(float dt)

{

//通过进度条的ID得到进度条

CCProgressTimer* progress = (CCProgressTimer*)getChildByTag(100);

//设置progress的进度,每调用一次进度加一

progress->setPercentage(progress->getPercentage() + 1);

//当进度大于或者等于100时

if(progress->getPercentage() >= 100)

{

//终止定时器

unscheduleAllSelectors();

}

}

执行结果: