Add button on top of UITableViewController (Swift)

Question

I am trying to add a button ontop of a uitableview controller table view. The view controller has a navigation controller and static cells, which is why it is a uitableviewcontr

Answer 1

there is a better solution for this. you can do this by disabling the Auto Layout(button.translatesAutoresizingMaskIntoConstraints = false) property of the corresponding Button or any UIView for floating button:

Swift 4

//create a button or any UIView and add to subview
let button=UIButton.init(type: .system)
button.setTitle("NEXT", for: .normal)
button.frame.size = CGSize(width: 100, height: 50)
self.view.addSubview(button)

//set constrains
button.translatesAutoresizingMaskIntoConstraints = false
if #available(iOS 11.0, *) {
     button.rightAnchor.constraint(equalTo: tableView.safeAreaLayoutGuide.rightAnchor, constant: -10).isActive = true
     button.bottomAnchor.constraint(equalTo: tableView.safeAreaLayoutGuide.bottomAnchor, constant: -10).isActive = true
} else {
     button.rightAnchor.constraint(equalTo: tableView.layoutMarginsGuide.rightAnchor, constant: 0).isActive = true
     button.bottomAnchor.constraint(equalTo: tableView.layoutMarginsGuide.bottomAnchor, constant: -10).isActive = true
}