问题
How can I overlay a search bar over MapKit?
I like how the new Google Maps application has a search box and buttons that hover over the map.
See the image on the left:

I'm not sure how to get this however as I have not been programming iOS for longer than a couple of weeks. Any ideas on how I could hover UI elements on top of each other with Storyboards/Objective-C?
Presumably it's a navigation bar that has been made invisible but how is this done, and how is it the Map appears underneath it?
回答1:
The search box appears to be a custom control which mimics behavior of a UISearchBar and which would inherit from UIControl. Since UIControl inherits from UIView, you can add it to your map view
- programatically with the addSubview: method
- via Storyboard by adding your custom control to your map in the appropriate view controller
来源:https://stackoverflow.com/questions/14092857/how-can-i-overlay-a-search-bar-over-mapkit