title: What is the name of this dismissable viewcontrollable in iOS?
body: <p><a href="https://i.stack.imgur.com/ffYOi.gif" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ffYOi.gif" alt="viewcontroller"></a></p>
  
  <p>I just want to know is this a custom view controller or it is something provided by apple, if thats the case what is its name?</p>