Cocos2d-x 2.0.1 版本用CCScrollView实现帮助页面

#include "HelpScene.h" using namespace cocos2d; USING_NS_CC_EXT; CCScene* HelpScene::scene() { CCScene * scene = NULL; do { // 'scene' is an autorelease object scene = CCScene::create(); CC_BREAK_IF(! scene); // 'layer' is an autorelease object HelpScene *layer = HelpScene::create(); CC_BREAK_IF(! layer); // add layer as a child to scene scene->addChild(layer); } while (0); // return the scene return scene; } // on "init" you need to initialize your instance bool HelpScene::init() { if(!CCLayer::init()) { return false; }; page = 1; CCSize size = CCDirector::sharedDirector()->getWinSize(); CCSprite *bg = CCSprite::create("Help/Help_BG.png"); bg->setScaleX(2.0f); bg->setAnchorPoint(CCPointZero); bg->setPosition(CCPointZero); this->addChild(bg); // CCScrollView scrollView = CCScrollView::create(); CCLayer *layer = CCLayer::create(); char helpstr[30] = {0}; for (int i=1;i<=6;i++) { sprintf(helpstr,"Help/Help_%02d_chs.png",i); CCSprite *sprite = CCSprite::create(helpstr); sprite->setScaleX(2.0); sprite->setScaleY(1.0); sprite->setPosition(ccp(size.width*(i-0.5),size.height/2+25)); layer->addChild(sprite); } layer->setAnchorPoint(CCPointZero); layer->setPosition(CCPointZero); scrollView->setPosition(CCPointZero); scrollView->setContentOffset(CCPointZero); layer->setContentSize(CCSizeMake(480*6, 320)); scrollView->setContentSize(CCSizeMake(480, 320)); scrollView->setContainer(layer); scrollView->setTouchEnabled(false); scrollView->setDelegate(this); scrollView->setDirection(CCScrollViewDirectionHorizontal); this->addChild(scrollView); CCSpriteFrameCache *cache = CCSpriteFrameCache::sharedSpriteFrameCache(); cache->addSpriteFrame(CCSpriteFrame::create("Help/Help_Point01.png",CCRectMake(0,0,16,16)),"Help_Point01.png"); cache->addSpriteFrame(CCSpriteFrame::create("Help/Help_Point02.png",CCRectMake(0,0,16,16)),"Help_Point02.png"); for (int i=1;i<=6;i++) { CCSprite *point = CCSprite::createWithSpriteFrameName("Help_Point01.png"); point->setTag(100+i); point->setPosition(ccp(160+25*i,30)); this->addChild(point); } CCSprite *point = (CCSprite *)this->getChildByTag(101); point->setDisplayFrame(cache->spriteFrameByName("Help_Point02.png")); return true; } void HelpScene::menuCloseCallback(CCObject* pSender) { } void HelpScene::scrollViewDidScroll(cocos2d::extension::CCScrollView *view) { } void HelpScene::scrollViewDidZoom(cocos2d::extension::CCScrollView *view) { } void HelpScene::onEnter() { CCLayer::onEnter(); CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this, 1, false); } void HelpScene::onExit() { CCDirector::sharedDirector()->getTouchDispatcher()->removeDelegate(this); CCLayer::onExit(); } bool HelpScene::ccTouchBegan(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent) { CCLOG("begin"); touchPoint = CCDirector::sharedDirector()->convertToGL(pTouch->locationInView()); return true; } void HelpScene::ccTouchMoved(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent) { } void HelpScene::ccTouchEnded(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent) { CCLOG("end"); CCPoint endPoint = CCDirector::sharedDirector()->convertToGL(pTouch->locationInView()); adjustScrollView(endPoint.x-touchPoint.x); } void HelpScene::ccTouchCancelled(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent) { CCPoint endPoint = CCDirector::sharedDirector()->convertToGL(pTouch->locationInView()); adjustScrollView(endPoint.x-touchPoint.x); } void HelpScene::adjustScrollView(float offset) { CCSize size =CCDirector::sharedDirector()->getWinSize(); CCSpriteFrameCache *cache = CCSpriteFrameCache::sharedSpriteFrameCache(); CCSprite *point = (CCSprite *)this->getChildByTag(100+page); point->setDisplayFrame(cache->spriteFrameByName("Help_Point01.png")); if (offset<0) { page ++; }else { page --; } if (page <1) { page = 1; }else if(page > 6) { page =6; } point = (CCSprite *)this->getChildByTag(100+page); point->setDisplayFrame(cache->spriteFrameByName("Help_Point02.png")); CCPoint adjustPos = ccp(-size.width*(page-1),0); scrollView->setContentOffset(adjustPos, true); }