title: iOS app deep linking: Return to previous app or access current url scheme of current app
body: <p>I'm developing a custom keyboard for iOS. When I'm e.g. in Safari using my custom keyboard, I have a button in my keyboard to jump to to keyboard containing app. Then in my keyboard app I have the iOS specific "&lt;- Safari" button in the top left corner to jump back to Safari.</p>
  
  <p>Is it possible to programmatically jump back to the source application (in my example Safari)?</p>
  
  <p>Or can I send the original url scheme to my containing app and then open the previous app (could be ANY) by the url scheme?</p>
  
  <p>It must be somehow possible, because the app Scandit Wedge does exactly what I want. I created an empty test app without any url scheme and with the Scandit Wedge keyboard I can go to Scandit app, read barcode and it goes automatically back to the source app. </p>
  
  <p>Here's a video I recorded:
  <a href="https://www.youtube.com/watch?v=UiHH4NanlkA" rel="nofollow noreferrer">https://www.youtube.com/watch?v=UiHH4NanlkA</a></p>