title: How to rebuild the entire Android folder?
body: <p>I have messed the files up in the Android folder and would like to rebuild the Android project inside of the Android folder. How do I do this? </p>
  
  <p>Is it safe to delete the Android folder and then run <code>react-native run-android</code>, will that make it again?</p>
  
  <p>Everything I've coded was wrote in <code>index.android.js</code>.</p>