title: capturing self strongly in this block is likely to lead to a retain cycle
body: <p>How can I avoid this warning in xcode. Here is the code snippet:</p>
  
  <pre><code>[player(AVPlayer object) addPeriodicTimeObserverForInterval:CMTimeMakeWithSeconds(0.1, 100)
  queue:nil usingBlock:^(CMTime time) {
      current+=1;
  
      if(current==60)
      {
          min+=(current/60);
          current = 0;
      }
  
      [timerDisp(UILabel) setText:[NSString stringWithFormat:@"%02d:%02d",min,current]];///warning occurs in this line
  }];
  </code></pre>