title: iphone google maps - direction using latitude and longitude
body: <p>I'm working on iphone app.
  I know my current location (latitude and longitude) and destination's (latitude and longitude).
  How can I use "Google maps" to find the directions. URL for google maps is something like "<a href="http://maps.google.com/maps?daddr=San+Francisco,+CA&amp;saddr=cupertino" rel="noreferrer">http://maps.google.com/maps?daddr=San+Francisco,+CA&amp;saddr=cupertino</a>"
  <br>
  From above URL, inspite of source and destination places i want to use latitude and longitude. how?</p>