Cocos2d-x3.2 文件读写

//GameScene.h

#include "cocos2d.h"

USING_NS_CC;

class GameScene : public cocos2d::Layer
{
public:
    static cocos2d::Scene* createScene();
    
    virtual bool init();
    
    void menuCallback(Ref* pSender);
    
    CREATE_FUNC(GameScene);
    
private:        //注意不能用auto关键字
    Size size;
    Sprite *sprite;
};

//GameScene.cpp

//  Created by Jacedy on 14-8-11.

#include "GameScene.h"

USING_NS_CC;

cocos2d::Scene* GameScene::createScene()
{
    auto scene = Scene::create();   //创建一个场景
    auto layer = GameScene::create();   //创建一个图层
    scene->addChild(layer);
    return scene;
}

//初始化当前的图层
bool GameScene::init()
{
    if(!Layer::init())      //初始化父类
        return false;
    
    //获取屏幕大小
    size = Director::getInstance()->getVisibleSize();
    //auto size = Director::getInstance()->getWinSize();
    
    std::string fileName = FileUtils::getInstance()->getWritablePath() + "test.txt";  //获取写入文件的绝对路径
    char szBuff[100] = "Hello Jacedy";
    
    //向本地写入文件
    FILE *fp = fopen(fileName.c_str(), "wb");
    if (fp)
    {
        fwrite(szBuff, 1, strlen(szBuff), fp);
        fclose(fp);
        log("Write succeed");
    }
    else
        log("Write failed");
    
    //读取文件
    std::string fullPath = FileUtils::getInstance()->fullPathForFilename("test.txt"); //获取读入文件的绝对路径
    
    if(fileName.length() > 0)
    {
        fp = fopen(fileName.c_str(), "rb");
        if (fp) {
            char szReadBuff[100] = {0};
            size_t read = fread(szReadBuff, 1, strlen(szBuff), fp);
            if (read > 0) {
                log("The content of file: %s", szReadBuff);
                
                //在窗口显示
                auto label = Label::createWithSystemFont("", "Marker Felt", 50);
                label->setPosition(Vec2(size.width/2, size.height/2));
                this->addChild(label);
                label->setString(szReadBuff);
            }
        }
    }
    
    
    return true;
}

void GameScene::menuCallback(Ref* pSender)
{
    
}