title: Xcode GPS navigation between 2 points
body: <p>Does anyone know of a good tutorial on how to use GPS (Google maps) to navigate between 2 points in an iPhone app? I have searched for the last few hours and can only find tutorials on pinpointing current location.</p>
  
  <p>What I need to do is show current position on map, and then navigation to a set destination on map. So e.g. you are at point A - navigate to point Z</p>
  
  <p>What I want to do is just have a button in the app that the user clicks. Once clicked, Google Maps app open and from here Google can do the rest. I don't need the map to be displayed in my app at all. </p>