changing the height of UITabBar in iOS7/8?

Question

I am trying to change the height of the stock UITabBar to 44px, similar to Tweetbot\'s tab bar height. I\'ve also seen a few other apps do this as well.

Answer 1

If you are on iOS 11 then following will help

-(CGSize)sizeThatFits:(CGSize)size
{
    CGSize sizeThatFits = [super sizeThatFits:size];
    sizeThatFits.height = 60;

    if (@available(iOS 11.0, *)) {
        UIWindow *window = UIApplication.sharedApplication.keyWindow;
        CGFloat bottomPadding = window.safeAreaInsets.bottom;
        sizeThatFits.height += bottomPadding;
    }

    return sizeThatFits;
}

Basically need to cover safe area, else tabbar height on iPhone X appears to be low.

Answer 2

If you have auto layout enabled, you will need to override instrinsicContentSize instead

Proper usage of intrinsicContentSize and sizeThatFits: on UIView Subclass with autolayout

class TabBar: UITabBar {
    override func intrinsicContentSize() -> CGSize {
        var intrinsicSize = super.frame.size

        intrinsicSize.height = 120
        return intrinsicSize
     }
}