Cocos2d-3.x_截屏功能

#ifndef __HELLOWORLD_SCENE_H__
#define __HELLOWORLD_SCENE_H__

#include "cocos2d.h"
#include "Ball.h"

USING_NS_CC;


class HelloWorld : public cocos2d::Layer
{
public:
    static cocos2d::Scene* createScene();

    virtual bool init();

    CREATE_FUNC(HelloWorld);

private:

};

#endif // __HELLOWORLD_SCENE_H__

#include "HelloWorldScene.h"

Scene* HelloWorld::createScene()
{
    auto scene = Scene::create();
    auto layer = HelloWorld::create();
    scene->addChild(layer);

    return scene;
}

bool HelloWorld::init()
{
    if ( !Layer::init() )
    {
        return false;
    }
    
	Size visibleSize = Director::getInstance()->getVisibleSize();
    Vec2 origin = Director::getInstance()->getVisibleOrigin();

	auto sprite = Sprite::create("HelloWorld.png");
	sprite->setPosition(Vec2(visibleSize.width / 2 + origin.x,visibleSize.height / 2 + origin.y));
	this->addChild(sprite,0);

	// Cocos2d-3.x中新加的截图功能
	auto listener = EventListenerTouchOneByOne::create();
	listener->onTouchBegan = [](Touch *t,Event *e)
	{
		// path保存路径
		// screenshot.png截图名称
		cocos2d::utils::captureScreen([](bool b,std::string path)
		{
			log("success %s,%s",b?"true":"false",path.c_str());
		},"screenshot.png");
		return false;
	};

	Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listener,this);

    return true;
}

（编辑：李大同）

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