How to change UIToolbar height?

Question

I want to change the height of the UIToolbar in Navigation Controller, but I am not able to do so in swift with Xcode 7.3 and iOS 9. I have tried to set frame with CGRectMake at viewDidLoad, but it didn't work. Also tried to init a custom UIToolbar(), but the height remain the same.

Edit:

As per one of the answers, I have tried selected toolbar, press control and select the toolbar again, but what I got is shown in below screenshot instead:

Answer 1

You can use it with ; Change 45 for min or max heights.

override func layoutSubviews() {
    super.layoutSubviews()

    var frame = self.bounds
    frame.size.height = 45
    self.frame = frame
}

override func sizeThatFits(size: CGSize) -> CGSize {
    var size = super.sizeThatFits(size)
    size.height = 45
    return size
}

Use it with like ;

let navigationController = UINavigationController(navigationBarClass: nil, toolbarClass: Toolbar.self)

Thanks