Programmatically change height of navigation bar in swift

Question

I want to make a taller navigation bar and I am trying to do this using a subclass of UINavigationBar.

Here is my subclass of UINavigationBar:

import         


        

Answer 1

Here is a simple Swift 3 solution based on minimal subclassing. First subclass UINavigationBar.:

class CustomNavigationBar: UINavigationBar {
    override func sizeThatFits(_ size: CGSize) -> CGSize {
        let newSize :CGSize = CGSize(width: self.frame.size.width, height: 54)
        return newSize
    }
}

Create the navigation controller in code and use the initializer that takes your custom navigation bar class.

let nav = UINavigationController(navigationBarClass: CustomNavigationBar.self, 
                                 toolbarClass: nil)

All existing behavior for UINavigationBar is preserved and your custom height is adopted.