title: iPhone AVAudio Player Volume issue
body: <p>I am very beginner of iPhone Application development.But i am having knowledge in android application development and my first i phone project is streaming shout cast URL using AV Audio Player and i am using following code to streaming the URL</p>
  
  <pre><code> NSString *urlstr=@"http://live64.jiljilradio.com";
  
    NSURL* url=[NSURL URLWithString:urlstr];
  
     AVPlayerItem *playerItem = [AVPlayerItem playerItemWithURL:url];
  
     player = [[AVPlayer playerWithPlayerItem:playerItem]retain];
     [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayback error:nil];
     NSLog(@"Play");
      [player play];
  </code></pre>
  
  <p>it works fine and i am having UI Slider for volume control by using <code>[player setvolume:0.5]</code>,my app is crashing..Please give me suggestions...</p>