Custom UIView constraints not being applied - ios

Question

I have the following custom UIView:
import UIKit
class CustomView: UIView {
// container view
lazy var contView: UIView = {
let cv = UIView()
cv.backgroundColor = .gray
cv.translatesAutoresizingMaskIntoConstraints = false
cv.layer.cornerRadius = 5
cv.layer.masksToBounds = true
cv.isUserInteractionEnabled = true
return cv
}()
lazy var t: UIImageView = {
let tt = UIImageView()
tt.translatesAutoresizingMaskIntoConstraints = false
tt.isUserInteractionEnabled = false
tt.contentMode = .scaleAspectFill
tt.alpha = 0
return tt
}()
let img: UIImageView = {
let image = UIImageView()
image.backgroundColor = .yellow
image.translatesAutoresizingMaskIntoConstraints = false
image.contentMode = .scaleAspectFill
return image
}()
let ny: UITextView = {
let info = UITextView()
info.translatesAutoresizingMaskIntoConstraints = false
info.backgroundColor = .blue
info.text = "Some, Text"
info.textColor = .white
return info
}()
func setupContView() {
contView.addSubview(img)
contView.addSubview(ny)
img.addSubview(t)
// UIViewAlertForUnsatisfiableConstraints error
contView.widthAnchor.constraint(equalTo: self.widthAnchor, constant: -24).isActive = true
contView.heightAnchor.constraint(equalTo: self.heightAnchor, constant: -200).isActive = true
contView.centerXAnchor.constraint(equalTo: self.centerXAnchor).isActive = true
contView.centerYAnchor.constraint(equalTo: self.centerYAnchor).isActive = true
t.centerXAnchor.constraint(equalTo: img.centerXAnchor).isActive = true
t.centerYAnchor.constraint(equalTo: img.centerYAnchor).isActive = true
img.centerXAnchor.constraint(equalTo: contView.centerXAnchor).isActive = true
img.centerYAnchor.constraint(equalTo: contView.centerYAnchor).isActive = true
img.widthAnchor.constraint(equalTo: contView.widthAnchor).isActive = true
img.heightAnchor.constraint(equalTo: contView.heightAnchor).isActive = true
ny.leftAnchor.constraint(equalTo: contView.leftAnchor).isActive = true
ny.rightAnchor.constraint(equalTo: contView.rightAnchor).isActive = true
ny.bottomAnchor.constraint(equalTo: contView.bottomAnchor).isActive = true
ny.heightAnchor.constraint(equalToConstant: 50).isActive = true
}
override init(frame: CGRect) {
super.init(frame: frame)
addSubview(contView)
setupContView()
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
}
When I try to create a reference to this CustomView object in my view controller like so...
var myCustomView = CustomView()
... None of the constraints are applied, and nothing appears. When I try to add constraints in the view controller or CustomView to center myCustomView I get UnsatisfiableConstraints errors. They appear when I add color to them and stuff in the view controller but I already did that in the custom UIView class so its redundant and overrides what I did.
What do I do? I want to be able to create objects of my custom class and have them all look the same, but none of the constraints or custom views I create in my CustomView class seem to be doing anything.