Change tabBar height in Swift 5 for IOS 13

Question

I need to change the UITabBar height to 95. I can do that in the older version of iOS Swift. This is my code that work in the older version.

override func viewWillLayoutSubviews() {
    super.viewWillLayoutSubviews()

    tabBar.frame.size.height = 95
    tabBar.frame.origin.y = view.frame.height - 95

    menuButton.frame.origin.y = self.view.bounds.height - tabBar.frame.size.height - 10
    shadowBtn.frame.origin.y = self.view.bounds.height - tabBar.frame.size.height - 15
}

score 21 · Accepted Answer · edited Sep 24 '19 at 11:35

21

Try it in viewDidLayoutSubviews

override func viewDidLayoutSubviews() {
    super.viewDidLayoutSubviews()
    tabBar.frame.size.height = 95
    tabBar.frame.origin.y = view.frame.height - 95
}

edited Sep 24 '19 at 11:35

Kuldeep

4,466
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answered Sep 24 '19 at 11:17

Sargis Terteryan

529
4
9

hello ... this code is currect but when i want to hide tabbar when i push to another view controller tabbar hide with delay ... – Hadiseh May 06 '20 at 06:04
@kuldeep, I look wired in iPhone X devices – Master_Tushar Apr 04 '21 at 07:01

score 1 · Answer 2 · answered Apr 13 '20 at 20:28

I am using following approach

extension UIWindow {
    static var key: UIWindow? {
        if #available(iOS 13, *) {
            return UIApplication.shared.windows.first { $0.isKeyWindow }
        } else {
            return UIApplication.shared.keyWindow
        }
    }
}

extension UITabBar {
    override open func sizeThatFits(_ size: CGSize) -> CGSize {
        super.sizeThatFits(size)
        guard let window = UIWindow.key else {
            return super.sizeThatFits(size)
        }
        var sizeThatFits = super.sizeThatFits(size)
        sizeThatFits.height = window.safeAreaInsets.bottom + <# Height #>
        return sizeThatFits
    }
}

Or if you don't like to create extension, create UITabBar Subclass and then override this method.

When you are changing height of Tab bar with viewWillLayoutSubviews and viewDidLayoutSubviews, you are forgetting the Safe Area. You will have to set addition Safe Area Inset via self.additionalSafeAreaInsets and by doing so this inside viewDidLayoutSubviews and viewWillLayoutSubview, Tab bar will shift upwards (because you have added additional inset). If you don't care about Auto Layout and Safe Area, then you are fine to go with viewWillLayoutSubviews and viewDidLayoutSubviews

Change tabBar height in Swift 5 for IOS 13

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