How to make UIImage of specific CGRect in view

Question

I have a full screen image displayed and what I would like to do is be able to provide a CGRect and using that rect get the area (or the rect) of the full screen image that is within it and create a UIImage of it. How can I accomplish this? I've been racking my brain over this one so any help would be greatly appreciated! Thanks in advance

CGRect screenRect = [[UIScreen mainScreen] bounds]; CGFloat screenWidth = screenRect.size.width; CGFloat screenHeight = screenRect.size.height; — Yagnesh Dobariya, Feb 25 '16 at 05:26
Possible duplicate of [Cropping an UIImage](http://stackoverflow.com/questions/158914/cropping-an-uiimage) — JAL, Feb 25 '16 at 14:28

score 1 · Answer 1 · answered Mar 01 '16 at 13:30

Try this code !

UIImage* crop(UIImage *image, rect) {
    UIGraphicsBeginImageContextWithOptions(rect.size, false, [image scale]);
    [image drawAtPoint:CGPointMake(-rect.origin.x, -rect.origin.y)];
    cropped_image = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();
    return cropped_image;
}

How to make UIImage of specific CGRect in view

1 Answers1