iPhone Screenshots

Question

Hi all,

I've been using UIGetScreenImage() to get a screenshot of a UIImagePickerController. Basically I use the camera overlay and then when I take the screenshot, I have the image that the camera preview had been showing and my overlay on there too, which is exactly what I need.

Now UIGetScreenImage() has been banned, I've not been able to find a way to do this. It just shows black for the camera.

Edit: all of my other views are showing absolutely fine, just not the actual camera preview. Any ideas??!?!?

Here's the code I am using at the moment.

UIGraphicsBeginImageContext(picker.view.bounds.size);
[picker.view.layer renderInContext:UIGraphicsGetCurrentContext()];
CGContextDrawImage(context, bounds, camView.CGImage);
UIImage* screenImage = UIGraphicsGetImageFromCurrentImageContext();
UIImageWriteToSavedPhotosAlbum(screenImage, nil, nil, nil); 
UIGraphicsEndImageContext();

Any ideas how I can get the overlay + the camera image?

Thanks!

Answer 1

This is slightly different than yours.

CGRect screenRect = [[UIScreen mainScreen] bounds];
        UIGraphicsBeginImageContext(screenRect.size);
        [self.layer renderInContext:UIGraphicsGetCurrentContext()];
        UIImage *sShot = UIGraphicsGetImageFromCurrentImageContext();
        UIGraphicsEndImageContext();
        UIImageWriteToSavedPhotosAlbum (sShot, nil, nil, nil);

Does that work?

If not, you might want to try asking over at iphonedevsdk.com since they specialize in all things iPhone.

Answer 2

Have them take a picture. Then overlay your image on top of it.

http://stackoverflow.com/questions/679245/create-a-uiimage-from-two-other-uiimages-on-the-iphone