title: How to make volume slider for AVPlayer in xcode for mac
body: <p>so i have my simple code of my radio app:</p>
  
  <pre><code> -(IBAction)europaPlus:(id)sender{
  
          NSLog(@"EuropaPlus work");
  
          if (clicked ==  0) {
  
              clicked = 1;
  
              NSString *urlAddress = @"http://cast.europaplus.ua/europaplus.aac";
  
              NSURL *urlStream = [NSURL URLWithString:urlAddress];
  
              radioPlus = [[AVPlayer alloc] initWithURL:urlStream];
  
              [radioPlus play];}
  
          else {
  
              NSLog(@"EuropaPlus not work");
  
              [radioPlus release];
  
              clicked = 0;
  
          }
  }
  </code></pre>
  
  <p>Also i used AVPLAYER only for URL connect but how make volume control for AVPlayer in MAC OS. I know about MPMVolumeControl in IOS but i have mac os project.Thanks.</p>