iOS 6 上的 Cocos2D 2.0 截图 [英] Cocos2D 2.0 screenshots on iOS 6

问题描述

我有一个应用程序可以截取场景的屏幕截图并将其保存到文件中.我有这个工作，应用程序在商店里.今天，我已经下载了 iOS 6 并且我使用的方法不再有效.我测试了我所知道的一切以使其正常工作，在谷歌上搜索并找到了这个:

I have an application that takes a screenshot of a scene and saves it to a file. I have this working and the application is on the store. Today, I have downloaded iOS 6 and the method I am using is not working anymore. I tested all I know to make it work, googled around and found this:

http://www.cocos2d-iphone.org/forum/topic/37809?replys=22#post-180983

用户似乎同意这可以在 iOS 5 上运行，但我已经在 iOS 6 上进行了测试，结果显示为黑色屏幕截图.

Users seem to agree that this is working on iOS 5, but I have tested this on iOS 6 and it is producing black screenshots.

我不是 Cocos2D 的专家，所以我不能确切地说出这个人的代码有什么问题.作者在github上有一个示例项目，甚至他的项目也在iOS 6上生成黑色截图.

I am not a specialist in Cocos2D so, I cannot say exactly what is wrong with this guy's code. the author has a sample project on github and even his project is producing black screenshots on iOS 6.

有什么线索吗?谢谢.

谢谢

推荐答案

我不确定 GitHub 版本的作用，但这段代码会截取屏幕截图，我刚刚在 iOS 6 上对其进行了测试，效果很好.

I am not sure what the GitHub version does but this code will take a screenshot and I just tested it on iOS 6 and it works fine.

+(UIImage*) screenshotWithStartNode:(CCNode*)startNode
{
    [CCDirector sharedDirector].nextDeltaTimeZero = YES;

    CGSize winSize = [CCDirector sharedDirector].winSize;
    CCRenderTexture* rtx = 
    [CCRenderTexture renderTextureWithWidth:winSize.width 
                                 height:winSize.height];
    [rtx begin];
    [startNode visit];
    [rtx end];

    return [rtx getUIImage];
}

你可以这样称呼它

CCScene *scene = [[CCDirector sharedDirector] runningScene];
CCNode *n = [scene.children objectAtIndex:0];
UIImage *img = [AppController screenshotWithStartNode:n];

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