title: Called the UISlider with tag
body: <p>I am using the three UISlider in a view controller and I want to call the same function for all the sliders. Here is my code </p>
  
  <pre><code>[yourWeightSlider addTarget:self action:@selector(sliderValueChanged:) forControlEvents:UIControlEventValueChanged]; 
      [physicalActivitySlider addTarget:self action:@selector(sliderValueChanged:) forControlEvents:UIControlEventValueChanged];
  </code></pre>
  
  <p>These two sliders calling the same method "sliderValueChange".How I separate which slider is called. I don't know how to use tag. I am new in iOS. 
  Thanks</p>