How to take a screenshot programmatically on iOS

Question

I want a screenshot of the image on the screen saved into the saved photo library.

Answer 1

Get Screenshot From View

-(UIImage *)getScreenshotImage {
    if ([[UIScreen mainScreen] scale] == 2.0) {
        UIGraphicsBeginImageContextWithOptions(self.view.frame.size, FALSE, 2.0);
    } else {
        UIGraphicsBeginImageContextWithOptions(self.view.frame.size, FALSE, 1.0);
    }

    [self.view.window.layer renderInContext:UIGraphicsGetCurrentContext()];

    UIImage * result = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return result;
}

Save Image to Photos

UIImageWriteToSavedPhotosAlbum(YOUR_IMAGE, nil, nil, nil);

How-To

UIImageWriteToSavedPhotosAlbum([self getScreenshotImage], nil, nil, nil);