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0xced on 04/08/09


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png iphone uikit artwork


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Extract UIKit artwork

Published in: Objective C 

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  1. #import <mach-o/dyld.h>
  2. #import <mach-o/nlist.h>
  3.  
  4. extern UIImage *_UIImageWithName(NSString *);
  5.  
  6. - (NSMutableDictionary*) UIKitImages
  7. {
  8.     NSMutableDictionary *mappedImages = nil;
  9.  
  10.     for(uint32_t i = 0; i < _dyld_image_count(); i++) {
  11.         if (strstr(_dyld_get_image_name(i), "UIKit.framework")) {
  12.             struct nlist symlist[] = {{"___mappedImages", 0, 0, 0, 0}, NULL};
  13.             if (nlist(_dyld_get_image_name(i), symlist) == 0 && symlist[0].n_value != 0) {
  14.                 mappedImages = (NSMutableDictionary*)*(int*)symlist[0].n_value;
  15.             }
  16.             break;
  17.         }
  18.     }
  19.  
  20.     return mappedImages;
  21. }
  22.  
  23. - (IBAction) extractArtwork:(id)sender
  24. {
  25.     for (NSString *imageName in [[self UIKitImages] allKeys]) {
  26.         NSString *documentsPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0];
  27.         NSString *imagePath = [documentsPath stringByAppendingPathComponent:imageName];
  28.         [UIImagePNGRepresentation(_UIImageWithName(imageName)) writeToFile:imagePath atomically:YES];
  29.     }
  30. }

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