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Start your free trialjc laurent
6,351 Pointsadded it to the parent view, doesn't seem to work?
parent view?
class MyViewController: UIViewController {
let sampleView = UIView()
override func viewDidLoad() {
super.viewDidLoad()
view.addSubview(sampleView)
}
override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
sampleView.translatesAutoresizingMaskIntoConstraints = false
// Add constraints below
let sampleViewHeightConstraint = NSLayoutConstraint(item: sampleView, attribute: .Height, relatedBy: .Equal,
toItem: nil, attribute: .CenterX, multiplier: 1.0, constant: 50.0)
let sampleViewWidthConstraint = NSLayoutConstraint(item: sampleView, attribute: .Width, relatedBy: .Equal,
toItem: nil, attribute: .CenterX, multiplier: 1.0, constant: 50.0)
view.addConstraints([sampleViewHeightConstraint,sampleViewWidthConstraint])
}
}
2 Answers
Moritz Lang
25,909 PointsHi,
I'm not quite sure about this old synthax for auto layout, but I think you have to set toItem
to your parent view (view
). How should it know otherwise that you want to relate it to your superview?
jc laurent
6,351 Pointsyep Moritz, I had to do it with anchor which was in the next course! As our friend Paramathne says :pretty cool hah?