how to create a navigation bar programmatically

i have a view in which i have table view and when user taps these cells in tabel view it gets loaded another view .. like this i have view hierarchy and i need a navigation bar at bottom of 开发者_StackOverflow社区my view whatever is the view currently visible in this hierarchy and i need to place 3 buttons on it ... home,about,visit...

if any suggestions appreciated ....

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You might wanna go through some of the guides at apple.com. You'll find your specific question answered in the viewController-guide:

http://developer.apple.com/library/ios/#featuredarticles/ViewControllerPGforiPhoneOS/Introduction/Introduction.html

HTH

Marcus