title: UISlider Finished Changing
body: <p>I have a slider that when it begins to change the values, another label shows up (lets the user see what they are doing). The only problem is that I need to know when the user has finished editing the slider so I can make that UILabel go away again. Is there a way to do this? The code below shows what I do when the sliders value begins to change. Thank you for you help!</p>
  
  <pre><code>- (IBAction)sliderValueChanged:(UISlider *)sender {
      tipPercentLabel.text = [NSString stringWithFormat:@"%.f", ([sender value] * 100)];
      tipPercentLabel2.text = [NSString stringWithFormat:@"%.f", ([sender value] * 100)];
  
      [UIView beginAnimations:nil context:NULL];
      [UIView setAnimationDuration:1.0];
      [tipPercentLabel setAlpha:0.3];
      [tipPercentLabel2 setAlpha:1.0];
      [UIView commitAnimations];
  
  
      [self performSelector:@selector(autoTipCalc) withObject:nil afterDelay:0.01];
  }
  </code></pre>