title: how to show image name from NSArray of UIImage in iOS
body: <p>I have an array of images, I just want to get the image name from the array
  e.g.</p>
  
  <pre><code>countryArray = [[NSMutableArray arrayWithObjects:
  [UIImage imageNamed:@"india.png"],
  [UIImage imageNamed:@"australia.png"],
  [UIImage imageNamed:@"singapore.png"],
  [UIImage imageNamed:@"america.png"],
  nil] retain];
  
  
  NSLog(@"image name at row %d is '%@'.",1,[countryArray objectAtIndex:1]);
  </code></pre>
  
  <p>It should show <code>australia.png</code>, instead it shows:</p>
  
  <blockquote>
    <p>image name at row 1 is UIImage: 0x4b14910</p>
  </blockquote>