title: Get Camera Roll Photos without UIImagePickerController
body: <p>I was wondering how one can get the photos off of iPhone's camera roll / photo library without opening up a UIImagePickerController. I've been trying to Google this but it always points me to the <code>UIImagePickerController</code> which I'm reluctant to use since it will open up another view controller. I know this is possible since Facebook Messenger has this feature. It presents my camera photo options without opening up iPhone's native photo app. For reference this is the <code>UIImagePickerController</code></p>
  
  <p><img src="https://i.imgur.com/fWhIa6K.png" alt="UIImagePickerController"></p>
  
  <p>and this is the Facebook Messenger App</p>
  
  <p><img src="https://i.imgur.com/BmlbQKR.png" alt="Facebook Messenger"></p>