cocos2d-x C++ 获取网络图片缓存并展示

#ifndef __HttpGetImg__

#define __HttpGetImg__

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#include "cocos2d.h"

#include "HttpRequest.h"

#include "HttpClient.h"

USING_NS_CC_EXT;

using namespace std;

USING_NS_CC;

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class HttpGetImg : public cocos2d::CCLayer

{

public:

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? ? HttpGetImg();

? ? ~HttpGetImg();

? ? //获取网络图片，需要地址

? ? static void GetHttpImg(CCObject* obj,string imgurl,int number);

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? ? void onHttpRequestRptImg(cocos2d::extension::CCHttpClient *sender,cocos2d::extension::CCHttpResponse *response);

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? ? //按原来默认头像比例设置新图片大小

? ? static void setImgSize(int oldhead_w,int oldhead_h,CCSprite* sprite);

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? ? //创建图片覆盖原有图片

? ? static void CreateImg(CCSprite* tagSprite,CCSprite* oldSprite,CCTexture2D* texture,int newTag);

private:

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};

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#endif /* HttpGetImg */

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#include "HttpGetImg.h"

#include "../DataModel/GlobalInfo.h"

#include "../GameConfig.h"

#include "../Commen/PublicDoFunc.h"

HttpGetImg::HttpGetImg(void)

{

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}

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void HttpGetImg::GetHttpImg(CCObject* obj,int number)

{

? ? CCHttpRequest* request = new CCHttpRequest();

? ? // required fields

? ? request->setUrl(imgurl.c_str());

? ? request->setRequestType(CCHttpRequest::kHttpGet);

? ? request->setResponseCallback(obj,httpresponse_selector(HttpGetImg::onHttpRequestRptImg));

? ? // optional fields

? ? char thisnumber[10] = "";

? ? sprintf(thisnumber,"%d",number);

? ? request->setTag(thisnumber);

? ? CCHttpClient::getInstance()->send(request);

? ? request->release();

}

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void HttpGetImg::onHttpRequestRptImg(CCHttpClient *sender,CCHttpResponse *response)

{

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? ? char c_tag[20]= "";

? ? sprintf(c_tag,"%s",response->getHttpRequest()->getTag());

? ? //? ? CCLog("%s completed",response->getHttpRequest()->getTag());

? ? string str_tag = c_tag;

? ? if (!response)

? ? {

? ? ? ? return;

? ? }

? ? // You can get original request type from: response->request->reqType

? ? if (0 != strlen(response->getHttpRequest()->getTag()))

? ? {

? ? ? ? //? ? ? ? CCLog("%s completed",response->getHttpRequest()->getTag());

? ? }

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? ? if (!response->isSucceed())

? ? {

? ? ? ? CCLog("response failed");

? ? ? ? CCLog("error buffer: %s",response->getErrorBuffer());

? ? ? ? return;

? ? }

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? ? vector<char> *buffer = response->getResponseData();

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? ? //create image

? ? CCImage* img = new CCImage;

? ? img->initWithImageData((unsigned char*)buffer->data(),buffer->size());

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? ? //create texture

? ? CCTexture2D* texture = new CCTexture2D();

? ? bool isImg = texture->initWithImage(img);

? ? img->release();

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　　 //将texture存下来

? ? texture

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? ? //已下是自己封装的PublicDoFunc异步调用主线程执行换图操作的部分，可以自己去封装

? ? //SEL_CallFuncN pfnCallback =callfuncN_selector(View_Room::upPlayerHead);

? ? //CCNode* nd = CCNode::create();

? ? //buffer->clear();

? ? //nd->setTag(CCString::create(str_tag)->intValue());

? ? //PublicDoFunc::toDoFuncN(LAYER_ROOM,pfnCallback,nd);

}

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void HttpGetImg::setImgSize(int oldhead_w,CCSprite* sprite)

{

? ? float s_X=oldhead_w/sprite->getContentSize().width;

? ? float s_Y=oldhead_h/sprite->getContentSize().height;

? ? sprite->setScaleX(s_X);

? ? sprite->setScaleY(s_Y);

}

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void HttpGetImg::CreateImg(CCSprite* tagSprite,int newTag)

{

? ? int oldw =oldSprite->getContentSize().width;

? ? int oldh =oldSprite->getContentSize().height;

? ? if(texture!=NULL)

? ? {

? ? ? ? CCSprite* sprite = CCSprite::createWithTexture(texture);

? ? ? ? //按原比例设置

? ? ? ? setImgSize(oldw,oldh,sprite);

? ? ? ? sprite->setPosition(oldSprite->getPosition());

? ? ? ? tagSprite->addChild(sprite,1,newTag);

? ? ? ? texture->release();

? ? }

}

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HttpGetImg::~HttpGetImg(void)

{

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}