title: UISlider events
body: <p>I'm using an UISlider, its updated automatically except the user is touching the sliderbutton. therefore i did this in the function which updates automatically by an NSTimer:</p>
  
  <pre><code>if (!isSliderTouched) {
      [progressSlider setValue: progressValue];
  }
  </code></pre>
  
  <p>How do I track the ending of this event, when the user releases his finger. I want to set isSliderTouched as long as the user interacts with this control.</p>
  
  <p><strong>EDIT</strong>: this should be the plot:</p>
  
  <ol>
  <li>user beginns draging/touching UISlider => <strong>isSliderTouched = YES</strong></li>
  <li>user releases/untouch the UISlider     => <strong>isSliderTouched = NO</strong></li>
  </ol>
  
  <p><strong>Solution</strong>:</p>
  
  <pre><code>UIControlEventTouchDown
  UIControlEventTouchUpInside
  [progressSlider addTarget:self action:@selector(sliderMoveStart) forControlEvents:UIControlEventTouchDown];
  </code></pre>
  
  <p>cheers endo</p>