title: How to continue developing with a React Native Project with xCode?
body: <p>I have complete my first little application with React Native.</p>
  
  <p>Now I want to change some styles or the splash screen on their native platform, where is the generated code for these platforms? I checked the <code>ios</code> and <code>android</code> folder, but I just can't find the place of code.</p>
  
  <p>For example, in xCode, I think most of code is stay in <code>main.jsbundle</code> file. but I don't know how to open it. Moreover, is it possible to continue with Swift language?</p>