If you create your view using a NIB, then it is rather simple - select navigation bar in attributes->bottom bar. If not then you should access navigation bar directly and change its coordinates. In your view controller:
CGRect oldRect = self.navigationController.navigationBar.frame;
self.navigationController.navigationBar.frame = CGRectMake(x, y, oldRect.width, oldRect.height);
where x and y are coordinates to place your navigation bar.
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