How can I add a button on top of a UIPageViewController?

Question

I have a page view controller with 3 pages. I want a 'floating' button to be visible on top of all of them. I have tried using a container view for the PageView but that doesn't seem to work. How else can I get the button to remain visible across all 3 pages?

I have tried using a container view as stated in this question: UIButton across all pages of UIPageViewController

Answer 1

Alternatively to my other answer, you can add a button programmatically.

Declare:

let button = UIButton()

and if you want, create a function called setupView()

private func setupView() {

//Here we set up the size and attributes of the button.
    currencyButton.frame = CGRect(x: self.view.frame.size.width - 60, y: 60, width: 50, height: 50)
    currencyButton.backgroundColor = UIColor.red
    currencyButton.setTitle("YourButtonTitle", for: .normal)
    currencyButton.addTarget(self, action: #selector(buttonAction), for: .touchUpInside)
    self.view.addSubview(currencyButton)
}

And to use the button:

@objc func buttonAction(sender: UIButton!) {
   //Do whatever.
   print("ButtonTapped")
}

Finally, make sure that in viewDidLoad() setupView() is called:

 override func viewDidLoad() {
    super.viewDidLoad()

    setupView()

    self.delegate = self
    configurePageControl()
    self.dataSource = self

}

This button will stay on screen when you scroll through the page view. Let me know if this answers your question.