Autolayout UIView Proportional height with Minimum height requirement

Question

I've created one Tab bar bottom view with proportional height related to main superview.

Whereas, tab bar bottom view height in 6+ -> 59, in 6 -> 53, in 5 -> 45 & in 4s -> 38. It's working proportionally fine. But what if I want this tab bar view's height should be minimum 46, at maximum it should work proportionally.

So based on the above heights on different devices, I want to achieve 6+ -> 59, 6 -> 53, 5 -> 46 & in 4s -> 46.

So what could be a possible solution in Auto layout to achieve this.
Thanks in Advance.

Answer 1

You should add height constraint to more than 46 and its priority is 1000.And then set priority of top space constraint to 750.

Answer 2

Try adding an extra height constraint to the tab bar that is "greater than or equal to" 46.