I have two subviews: the purple one belongs to a main view and it works wonderful with the syntax:
sSubview.center = view.center
The orange one belongs to the purple view and the same syntax doesn't place it correctly in the center. Could you see where my mistake is?
Here is my code:
import UIKit
class ViewController: UIViewController {
var sSubview = UIView()
var sLabel = UILabel()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
view.backgroundColor = UIColor.lightGray
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func viewDidLayoutSubviews() {
createSimplestSubview()
}
// First subview
func createSimplestSubview() {
sSubview = UIView(frame: CGRect(x: 0, y: 0, width: view.frame.width * 0.9, height: view.frame.height * 0.9))
sSubview.backgroundColor = UIColor.purple // just for test, to make it visible
sSubview.center = view.center // that s pretty easy!
view.addSubview(sSubview)
createSimplestLabel()
}
// Second subview
func createSimplestLabel() {
sLabel = UILabel(frame: CGRect(x: 0, y: 0, width: sSubview.frame.width * 0.3, height: sSubview.frame.height * 0.2))
sLabel.backgroundColor = UIColor.orange // just for test, to make it visible
sLabel.center = sSubview.center
sLabel.text = "This label has to be centered!"
sLabel.textAlignment = .center
sLabel.numberOfLines = 0
sSubview.addSubview(sLabel)
}
}
Here is a screen:
