在图像中捕获摄像机视图和onverlay [英] Capture camera view and onverlay in an image

问题描述

我打开相机视图，并将图像作为叠加层。
然后，我想将叠加层和摄像机视图的图像保存为一个图像。
以前，我使用UIGetScreenImage（）实现了这一点。
现在，苹果禁止这是什么是我的选择？
takePicture只会捕获摄像机数据，但是覆盖。
合并覆盖与来自takePicture的图像有点慢。

I open the camera view and place an image as an overlay. I then want to save both the overlay and the camera view's image as one image. Previously I achieved this using UIGetScreenImage(). Now that Apple forbid this what are my options ? takePicture will only capture the camera data but the the overlay. Merging the overlay with the image from takePicture is a bit slow.

推荐答案

你真的需要合并他们，并且它不应该超过一秒或两秒。类似的东西（未经测试，但应该给出一个想法）：

You really will have to merge them, and it shouldn't take more than a second or two. Something like(untested, but should give an idea):

UIGraphicsBeginImageContext(myCapturedImage.size);
[myCapturedImage drawAtPoint:CGPointZero]; //You might need to use drawInRect
[overlayImage drawAtPoint:CGPointZero];
UIImage *combinedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();

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