title: Display value of slider with respect to slider thumb react native
body: <p>I want to move the label with respect to slider thumb just like this one:
  <a href="https://i.stack.imgur.com/RMQuS.png" rel="noreferrer"><img src="https://i.stack.imgur.com/RMQuS.png" alt="enter image description here"></a></p>
  
  <p>Right now my slider is like this:</p>
  
  <p><a href="https://i.stack.imgur.com/wejrj.png" rel="noreferrer"><img src="https://i.stack.imgur.com/wejrj.png" alt="enter image description here"></a></p>
  
  <p>I want to display the label shown as 30 km with respect to the slider thumb such that as the slider moves, the label should move accordingly.</p>
  
  <p>I am using Native React Slider component.</p>
  
  <p>this is my code:</p>
  
  <pre><code>&lt;Slider 
       style={styles.slider} 
       thumbTintColor='rgb(252, 228, 149)' 
       step={1} 
       maximumValue={5} 
       thumbTintColor='rgb(252, 228, 149)' 
       maximumTrackTintColor='#494A48' 
       minimumTrackTintColor='rgb(252, 228, 149)' /&gt;
  </code></pre>