title: iOS open app when file is tapped in `Files` app
body: <p>Some iOS apps with custom file types get launched automatically when a file of that type is tapped (for example, Pages gets launched if a pages file is tapped in the Files app). How can an iOS app which is the owner of a UTI get the same behavior? (The UTI in particular conforms to <code>com.apple.package</code>)</p>
  
  <p>I'm using the sample BeerTracking app from <a href="https://www.raywenderlich.com/133825/uiactivityviewcontroller-tutorial" rel="noreferrer">https://www.raywenderlich.com/133825/uiactivityviewcontroller-tutorial</a> . When a file exported from the app is tapped in the Files app / Mail / Notes, an empty quicklook preview UI appears and only then is the user able to open the file in app by tapping share.   </p>