title: Is it considered bad practice to set height and width using a fixed number in React Native?
body: <p>I'm currently developing in React Native.</p>
  
  <p>Given the variety of screen sizes across mobile devices, is it bad practice to use something like:</p>
  
  <pre><code>width: 50, height: 50
  </code></pre>
  
  <p>Is there a better way to set the height and width of components within Views? Specifically <code>TextInput</code>, <code>Buttons</code> and <code>FlatList</code> components. </p>