Question

I like to crop a image in UIImageView. Can you provide me the full source code that will helpful for me.

Answer 1

I used to crop the image in same UIImageview

1)Store the image uiimageview

2)Take the same uiimageview and store it as Uiimage

3)crop the image and restore it

The following code will help

-(IBAction)setCropItem:(id)sender
{

UIGraphicsBeginImageContext(self.view.bounds.size); [self.view.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *finishedPicForCrop = UIGraphicsGetImageFromCurrentImageContext();
CGImageRef imageRef = CGImageCreateWithImageInRect([finishedPicForCrop CGImage], CGRectMake(0, 45, 320, 420));
UIImage *img = [UIImage imageWithCGImage:imageRef]; 
CGImageRelease(imageRef);
[firstImageView removeFromSuperview];
secondImageView = [[UIImageView alloc] initWithImage:img];
[secondImageView setFrame:CGRectMake(0, 0, 320, 460)];
scrollView.contentSize = secondImageView.bounds.size;
[scrollView addSubview:secondImageView];

}