title: Performing selector on UILabel generates crash?
body: <p>I read that UILabels aren't meant to respond to touch events, and that I could just use a UIButton. However, I have to subclass UILabel anyways to override another method, so I thought I might as well use a label to keep changes to my code a minimum.</p>
  
  <p>How can I get my label to respond to touch events? The code and error displayed are below.</p>
  
  <pre><code>UILabel *tempLabel = [[UILabel alloc] initWithFrame:CGRectMake(startingPoint, 5, 10, 22)];
      tempLabel.text = equationText;
      tempLabel.font = [UIFont systemFontOfSize:13];
     [tempLabel sizeToFit];
      [view addSubview:tempLabel];
      [tempLabel addTarget:self action:@selector(updateLabel:) forControlEvents:UIControlEventTouchUpInside]; // UNRECOGNIZED SELECTOR SENT TO INSTANCE
  </code></pre>