SkeletonView: SkeletonView does not update with AutoLayout

What did you do?

Tried to use isSkeletonable on a view laid out by auto-layout

What did you expect to happen?

The view would render in the auto-layout calculated position with shimmer

What happened instead?

The view did not show up

OR

If I set a background color, it shows up as background color, but no shimmer

Steps to reproduce the behavior

100% reproducible

let fakeText = UIView()
view.addSubview(fakeText)
fakeText.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint(item: fakeText, attribute: .leading, relatedBy: .equal, toItem: view, attribute: .leading, multiplier: 1, constant: CGFloat(16)).isActive = true
NSLayoutConstraint(item: fakeText, attribute: .height, relatedBy: .equal, toItem: nil, attribute: .notAnAttribute, multiplier: 1, constant: CGFloat(16)).isActive = true
NSLayoutConstraint(item: fakeText, attribute: .top, relatedBy: .equal, toItem: view, attribute: .top, multiplier: 1, constant: CGFloat(16)).isActive = true

// Trying to let autolayout determine the width the component does not render with a shimmer
// NSLayoutConstraint(item: fakeText, attribute: .width, relatedBy: .equal, toItem: view, attribute: .width, multiplier: 1, constant: -CGFloat(16)).isActive = true

// Setting the width statically it will render
NSLayoutConstraint(item: fakeText, attribute: .width, relatedBy: .equal, toItem: nil, attribute: .notAnAttribute, multiplier: 1, constant: CGFloat(200)).isActive = true

// If I set a background color, the component will render in the expected position with red background in the width relationship case.
// This demonstrates it as not an auto-layout issue.
// In the static width case, setting background has no effect.
fakeText.backgroundColor = UIColor.red

fakeText.isSkeletonable = true

SkeletonView Environment

SkeletonView version: 1.4.2 Xcode version: 10.1 Swift version: 4.2