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copied!<p>To create a deep copy of UIImageView object you need to archive it using NSKeyedArchiver and then unarchive it with NSKeyedUnarchiver, but there is a problem with this approach because UIImage does not conform to the NSCoding protocol. What you need to do first is to extend the UIImage class to support NSCoding.</p> <p>Add a new category with name <code>NSCoding</code> on <code>UIImage</code> and place the following code:</p> <p><strong>UIImage+NSCoder.h</strong></p> <pre><code>#import <UIKit/UIKit.h> @interface UIImage (NSCoding) - (id)initWithCoder:(NSCoder *)decoder; - (void)encodeWithCoder:(NSCoder *)encoder; @end </code></pre> <p><strong>UIImage+NSCoder.m</strong></p> <pre><code>#import "UIImage+NSCoder.h" @implementation UIImage (NSCoding) - (id)initWithCoder:(NSCoder *)decoder { NSData *pngData = [decoder decodeObjectForKey:@"PNGRepresentation"]; [self autorelease]; self = [[UIImage alloc] initWithData:pngData]; return self; } - (void)encodeWithCoder:(NSCoder *)encoder { [encoder encodeObject:UIImagePNGRepresentation(self) forKey:@"PNGRepresentation"]; } @end </code></pre> <p>Then add a new category with name <code>DeepCopy</code> (for ex.) on UIImageView and the following code:</p> <p><strong>UIImageView+DeepCopy.h</strong></p> <pre><code>#import <UIKit/UIKit.h> @interface UIImageView (DeepCopy) -(UIImageView *)deepCopy; @end </code></pre> <p><strong>UIImageView+DeepCopy.m</strong></p> <pre><code>#import "UIImageView+DeepCopy.h" #import "UIImage+NSCoder.h" @implementation UIImageView (DeepCopy) -(UIImageView *)deepCopy { NSMutableData *data = [[NSMutableData alloc] init]; NSKeyedArchiver *archiver = [[NSKeyedArchiver alloc] initForWritingWithMutableData:data]; [archiver encodeObject:self forKey:@"imageViewDeepCopy"]; [archiver finishEncoding]; [archiver release]; NSKeyedUnarchiver *unarchiver = [[NSKeyedUnarchiver alloc] initForReadingWithData:data]; UIImageView *imgView = [unarchiver decodeObjectForKey:@"imageViewDeepCopy"]; [unarchiver release]; [data release]; return imgView; } @end </code></pre> <p>Usage: Import your UIImageView+DeepCopy.h</p> <pre><code>UIImageView *imgView1 = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"picture.jpg"]]; UIImageView *imageView2 = [imgView1 deepCopy]; </code></pre>

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