title: Set Thumbanail mp3 Song Thumbnail image to my imageView
body: <p>I want to set my MP3 song thumbnail image to my Imageview;</p>
  
  <p>i have an song array that contains 5 songs. i want to set the first song thumbnail to my Imageview.</p>
  
  <p>my array is this</p>
  
  <pre><code>mp3Array=[[NSArray alloc]initWithObjects:@"song",@"song1",@"song2",@"song3",@"song4", nil];
  </code></pre>
  
  <p>Crash at this line</p>
  
  <pre><code>MPMediaItemArtwork *itemArtwork = [song valueForProperty:
                                         MPMediaItemPropertyArtwork];
  </code></pre>
  
  <p>Crash log is</p>
  
  <p><strong>erminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFConstantString valueForProperty:]: unrecognized selector sent to instance 0x8dd0</strong></p>
  
  <p>I tried this code to set thumbnail but not set thumbnail crash the app.</p>
  
  <p>code is below...</p>
  
  <pre><code>  MPMediaItem * song=[mp3Array objectAtIndex:delegate.count];
  
      UIImage *image = nil;
  
      MPMediaItemArtwork *itemArtwork = [song valueForProperty:
                                         MPMediaItemPropertyArtwork];
      if(itemArtwork != nil)
  
          image = [itemArtwork imageWithSize:CGSizeMake(100,100)];
  
  [imgView setImage:image];
  </code></pre>
  
  <p>where may i wrong.</p>
  
  <p>help me out this...</p>
  
  <p>thanks in advance..</p>