title: MKMapView inside a UIScrollView
body: <p>I want to create something similar to these pictures in the FourSquare.</p>
  
  <p>So, when the user scrolls down, after a certain point , the height of the map changes and takes almost all of the screen, and the rest screen is moving down.</p>
  
  <p>What structure should I use?</p>
  
  <p>Should I use an MKMapView inside a scrollview?
  How do I set that if the scrolling is not half the screen then you should bounce back?</p>
  
  <p><img src="https://i.stack.imgur.com/vF8KM.png" alt="mapview in the initial size"></p>
  
  <p><img src="https://i.stack.imgur.com/LCLdT.png" alt="when scrolling down"></p>