title: Input text doesn't show keyboard on iOS simulator
body: <p>I'm building an app and I need to use an input text.</p>
  
  <p>The problem comes when you tap on this input text, the keyboard doesn't appear.</p>
  
  <p>I don't know why, I don't know what I'm doing wrong. It is supposed to be straightforward.</p>
  
  <p>Here is some of my code:</p>
  
  <pre><code>&lt;View style={ styles.storyContentContainer }&gt;
      &lt;TextInput ref='username' style={{width: 300, height: 20, borderWidth: 1,}}/&gt;
  &lt;/View&gt;
  </code></pre>
  
  <p>And a video to show to you guys when the input text gets the focus nothing happen:</p>
  
  <p><a href="https://i.stack.imgur.com/0DAsV.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/0DAsV.gif" alt="enter image description here"></a></p>
  
  <p>I hope you guys can help me with this issue.</p>