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Posted By

ezeewoo on 11/19/11


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Tintenklecks


Capture UIImage and write png

 / Published in: Objective C
 
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  1. - (NSString *)saveBaseDir {
  2.   NSArray *array = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
  3.                                                        NSUserDomainMask,
  4.                                                        YES);  
  5.   return [array objectAtIndex:0];
  6. }
  7.  
  8. - (BOOL) captureView:(UIView *)aview name:(NSString *)filename {
  9.  
  10.   UIGraphicsBeginImageContext(aview.frame.size);
  11. 	[aview.layer renderInContext:UIGraphicsGetCurrentContext()];
  12. 	UIImage *viewImage = UIGraphicsGetImageFromCurrentImageContext();
  13. 	UIGraphicsEndImageContext();
  14.  
  15.   NSString *saveFileName = filename;
  16.   NSString *saveFilePath = [[self saveBaseDir] stringByAppendingPathComponent:saveFileName];
  17.  
  18.   NSData *data = UIImagePNGRepresentation(viewImage);
  19.   NSError *error = nil;
  20.   [data writeToFile:saveFilePath options:NSDataWritingAtomic error:&error];
  21.   if (error) {
  22.     NSLog(@"Error png file:%@ error=%@", saveFileName, [error description]);
  23.     return NO;
  24.   } else {
  25.     NSLog(@"Success png file:%@", saveFileName);
  26.     return YES;
  27.   }
  28. }
  29.  
  30.  

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