Cannot change the height of Login Button in FBSDKLoginKit?

Question

I am using FBSDKLoginKit in iOS with Swift.

Up until recently it has been working perfectly, however I now cannot override the height of my button in the St

Answer 1

This little autoclosure in Swift 4.0 also works perfectly if you have no reason to remove the constraint, just override it.

let facebookLoginButton = FBSDKLoginButton()
if let constraint = facebookLoginButton.constraints.first(where: { (constraint) -> Bool in
    return constraint.firstAttribute == .height
}) {
    constraint.constant = 40.0
}

Or if you hate let statements:

let facebookLoginButton = FBSDKLoginButton()
facebookLoginButton.constraints.first(where: { (constraint) -> Bool in
    return constraint.firstAttribute == .height
})?.constant = 40.0