Get Address when click on map view

I am making an application for iphone. In that i want to add event like as when user click on map then that address save开发者_Go百科 in text field of view. I have am showing map in view and user zoom in map and click on any location.When click on map then i want use that location. I want to save that location in string or text field. Can u tell me any api which provide this facility? So can you tell me how can i do that?

Read this Location awareness and come back if you still need help.