How to correct Tab Bar height issue on iPhone X

Question

I\'m having an issue with my app when testing for iPhone X. I\'m not sure how to adjust this issue, as well as not make it an issue for non iPhone X sizes. This only seems t

Answer 1

There is UITabBar subclass that solves all my issues with iPhone X iOS 11 / iOS 12

class TabBar: UITabBar {

private var _safeAreaInsets = UIEdgeInsets.zero
private var _subviewsFrames: [CGRect] = []

@available(iOS 11.0, *)
override func safeAreaInsetsDidChange() {
    super.safeAreaInsetsDidChange()

    if _safeAreaInsets != safeAreaInsets {
        _safeAreaInsets = safeAreaInsets

        invalidateIntrinsicContentSize()
        superview?.setNeedsLayout()
        superview?.layoutSubviews()
    }
}

override func sizeThatFits(_ size: CGSize) -> CGSize {
    var size = super.sizeThatFits(size)
    if #available(iOS 12.0, *) {
        let bottomInset = safeAreaInsets.bottom
        if bottomInset > 0 && size.height < 50 && (size.height + bottomInset < 90) {
            size.height += bottomInset
        }
    }
    return size
}

override var frame: CGRect {
    get {
        return super.frame
    }
    set {
        var tmp = newValue
        if let superview = superview, tmp.maxY !=
                superview.frame.height {
            tmp.origin.y = superview.frame.height - tmp.height
        }

        super.frame = tmp
    }
}

override func layoutSubviews() {
    super.layoutSubviews()
    let state = subviews.map { $0.frame }
    if (state.first { $0.width == 0 } == nil) {
        _subviewsFrames = state
    } else {
        zip(subviews, _subviewsFrames).forEach { (view, rect) in
            view.frame = rect
        }
    }

}
}