title: how to make a view appear only if is the first time?
body: <p>Thanks in advance . </p>
  
  <p>I wanna make a view appear only if the application is launch for the first time, I have work with a similar code to display Alerts, but I can find a way to make it with a Storyboard view ? For example my idea is : in the image below I have 7 buttons so I want the user to select which Country/Button they wanna use after this first time launch (it will be a button where they can change it back ) and how can I save the value of the button (the one that the user choose) so that every time the app launches again it goes straight to the one they selected when the app was installed ?</p>
  
  <p>Thank you . </p>