title: React native- How to display login screen only one time in react native?
body: <p>I am creating a project where I have a Registration screen, which is used for user to Register into the Application. This Register screen should only be visible the first time, so the user can fill it and log in, but when user opens the application at the second time the application must navigate to Main page.</p>
  
  <p>I don't understand how to do this.</p>