How to crop the UIImage in iPhone?

Question

In my application, I have set one image in UIImageView and the size of UIImageView is 320 x 170. but the size of original image is 320 x 460. so how to crop this image and d

Answer 1

You can call this function for cropping the image -

- (UIImage *)resizeImage:(UIImage *)oldImage width:(float)imageWidth height:(float)imageHeight {
    UIImage *newImage = oldImage;

    CGSize itemSize = CGSizeMake(imageWidth, imageHeight);
    UIGraphicsBeginImageContext(itemSize);
    CGRect imageRect = CGRectMake(0.0, 0.0, itemSize.width, itemSize.height);
    [oldImage drawInRect:imageRect];

    newImage = UIGraphicsGetImageFromCurrentImageContext();
    UIGraphicsEndImageContext();

    return newImage;
}

this function returns the UIImage.