title: Expand UIView with pan gesture in iOS Swift
body: <p>I want to implement a view that stays at the bottom of the screen and can be expanded with a pan gesture just like in the Uber app for iOS? 
  <a href="https://i.stack.imgur.com/02iHS.jpg" rel="nofollow noreferrer">Uber Home screen</a> The view will be minimizable when dragged downwards</p>