title: Swift view reload when app becomes active
body: <p>I have values that are being updated from firebase, I am calling the functions that update the values inside viewdidload(), when the app is installed the values are updated, then I send an update that is basically requiring me to close the app twice until the value are update, not sure if iphone keeps it in memory even after 1 close? </p>
  
  <p>I tried adding viewWillAppear and viewDidAppear to try and fix this but neither did anything. Is there a way to reload the view when the app is opened even if it was not closed and was in the background.</p>
  
  <p>Will this work through app delegate? how can i Update the viewcontroller from there?</p>
  
  <p>Thank you.</p>