Cocos2d-x 3.x使用第三方库播放gif图
效果图：
由于kd的项目中需要用到gif，而Cocos2d-x本身是不支持gif播放的。百度 + google 了很久，最终都指向：https://github.com/opentalking/gif-for-cocos2dx
这里，可惜一开始看到的时候是基于2.2的，由于对底层代码不熟悉，根本没办法下手。于是联系原作者，他一个周末就搞出个3.x的版本，大家可以去膜拜下：
地址：https://github.com/opentalking/gif-for-cocos2dx-3.x.git
在这里真心要为大神的无私分享精神点个赞~
使用方法：
pull下来后，把gif文件夹导入到项目中来，然后就可以像使用Sprite那样使用gif~~~
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std::string name = "g2.gif";name = FileUtils::getInstance() -> fullPathForFilename(name.c_str());GifBase *gif = InstantGif::create(name.c_str());gif->setPosition(Point(visibleSize.width * 0.5, visibleSize.height * 0.5));gif -> setScale(2);this->addChild(gif);gif2 = CacheGif::create(name.c_str());gif2->setPosition(Point(500,0));gif2->setScale(2);this->addChild(gif2); |
用到的类主要是InstantGif 和 CacheGif，两者的使用方法一样,前者是一边播放一边从数据中解析帧,后者是一次性解析完，并放到缓存中，这种方式耗时长，占用内存大（图片帧数太多的话可能会挂），但是相对第一种方式会流畅很多~
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来源网址：http://helkyle.tk/2014/12/11/cocos2dxgif/
1 .cpp完整代码 2 3 #include "HelloWorldScene.h" 4 #include "Gif/GIFMovie.h" 5 #include "Gif/CacheGif.h" 6 #include "Gif/InstantGif.h" 7 8 USING_NS_CC; 9 10 #if (CC_TARGET_PLATFORM == CC_PLATFORM_ANDROID) 11 #define FILE_FORMAT ("/mnt/sdcard/g%d.gif") //On the Android platform, the resources are compressed in the asset directory. Therefore, the resources must be files on the sd card 12 #else 13 #define FILE_FORMAT ("g%d.gif") 14 #endif 15 16 CCScene* HelloWorld::scene() 17 { 18 // 'scene' is an autorelease object 19 CCScene *scene = CCScene::create(); 20 21 // 'layer' is an autorelease object 22 HelloWorld *layer = HelloWorld::create(); 23 24 // add layer as a child to scene 25 scene->addChild(layer); 26 27 // return the scene 28 return scene; 29 } 30 31 // on "init" you need to initialize your instance 32 bool HelloWorld::init() 33 { 34 ////////////////////////////// 35 // 1. super init first 36 if ( !CCLayer::init() ) 37 { 38 return false; 39 } 40 41 CCSize visibleSize = CCDirector::sharedDirector()->getVisibleSize(); 42 CCPoint origin = CCDirector::sharedDirector()->getVisibleOrigin(); 43 44 ///////////////////////////// 45 // 2. add a menu item with "X" image, which is clicked to quit the program 46 // you may modify it. 47 48 // add a "close" icon to exit the progress. it's an autorelease object 49 CCMenuItemImage *pCloseItem = CCMenuItemImage::create( 50 "CloseNormal.png", 51 "CloseSelected.png", 52 this, 53 menu_selector(HelloWorld::menuCloseCallback)); 54 55 pCloseItem->setPosition(ccp(origin.x + visibleSize.width - pCloseItem->getContentSize().width/2 , 56 origin.y + pCloseItem->getContentSize().height/2)); 57 58 // create menu, it's an autorelease object 59 CCMenu* pMenu = CCMenu::create(pCloseItem, NULL); 60 pMenu->setPosition(CCPointZero); 61 this->addChild(pMenu, 1); 62 63 return true; 64 } 65 66 int count = 1; 67 void HelloWorld::update(float delta) 68 { 69 count++ ; 70 if(count > 240) 71 { 72 this->removeAllChildren(); 73 } 74 } 75 76 void HelloWorld::menuCloseCallback(CCObject* pSender) 77 { 78 count++; 79 while(this->getChildByTag(1000)) 80 { 81 this->removeChildByTag(1000); 82 } 83 CCLOG("%s","------after remove gif-----------"); 84 CCTextureCache::sharedTextureCache()->dumpCachedTextureInfo(); 85 if(count % 2 != 0) 86 { 87 return ; 88 } 89 std::string name = CCString::createWithFormat(FILE_FORMAT,count/2)->getCString(); 90 name = CCFileUtils::sharedFileUtils()->fullPathForFilename(name.c_str()); 91 92 GifBase *gif = InstantGif::create(name.c_str()); 93 if(gif == NULL) 94 { 95 CCLOG("%s","create gif failed"); 96 return ; 97 } 98 gif->setAnchorPoint(ccp(0,0)); 99 this->addChild(gif); 100 gif->setPosition(ccp(0,0)); 101 gif->setTag(1000); 102 103 104 gif = CacheGif::create(name.c_str()); 105 gif->setAnchorPoint(ccp(0,0)); 106 this->addChild(gif); 107 gif->setPosition(ccp(500,0)); 108 gif->setScale(2); 109 gif->setTag(1000); 110 CCLOG("%s","------after add gif-----------"); 111 CCTextureCache::sharedTextureCache()->dumpCachedTextureInfo(); 112 113 return ; 114 }
在class类中还有Gif文件夹，里面有需要的类