//MyLayer.h

#include "cocos2d.h"

USING_NS_CC;

class MyLayer : public CCLayer

{

public:

    static MyLayer* create();

    bool init();

};

//MyLayer.cpp

#include "MyLayer.h"

MyLayer* MyLayer::create()

{

    MyLayer *pRet = new MyLayer();

    if (pRet && pRet->init())

    {

        pRet->autorelease();

    }

    else

    {

        delete pRet;

        pRet = NULL;

    }

    return pRet;

}

bool MyLayer::init()

{

    if (!CCLayer::init())

    {

        return false;

    }

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

    CCSprite* spr = CCSprite::create("1.png");

    spr->setPosition(ccp(winSize.width / , winSize.height / ));

    addChild(spr);

    return true;

}

//MyScene.h

#include "cocos2d.h"

USING_NS_CC;

class MyScene : public CCScene

{

public:

    static MyScene* create();

    bool init();

};

//myScene.cpp

#include "MyScene.h"

#include "MyLayer.h"

MyScene* MyScene::create()

{

    MyScene *pRet = new MyScene();

    if (pRet && pRet->init())

    {

        pRet->autorelease();

    }

    else

    {

        delete pRet;

        pRet = NULL;

    }

    return pRet;

}

bool MyScene::init()

{

    MyLayer* layer = MyLayer::create();

    this->addChild(layer);

    return true;

}
appDelegate:

CCScene *pScene = MyScene::create();

director->runWithScene(pScene);