How to enable page indicator?

[danielpassos]

What I need to do to enable the page indicator? I cloud not find any reference about it in your demo app.

    override func viewDidLoad() {
        scrollView.auk.settings.showsHorizontalScrollIndicator = true
        scrollView.auk.settings.pageControl.visible = true
        scrollView.auk.settings.contentMode = UIViewContentMode.ScaleAspectFill

        let image1 = UIImage(named: "banner_top.jpg")
        self.scrollView.auk.show(image: image1!, accessibilityLabel: "Top")

        let image2 = UIImage(named: "banner_conteudo.jpg")
        self.scrollView.auk.show(image: image2!, accessibilityLabel: "Conteúdo")

        let image3 = UIImage(named: "banner_eventos.jpg")
        self.scrollView.auk.show(image: image3!, accessibilityLabel: "Eventos")

        scrollView.auk.startAutoScroll(delaySeconds: 3)
    }

[evgenyneu]

Hi @danielpassos, this is weird indeed. The page indicator should be visible by default. This issue could appear if the scroll view is not added to the main view in viewDidLoad where you add the images. Here is why:

• The page indicator view is created the first time you add an image to the scroll view.
• The page indicator view is added to the superview of the scroll view.
• If the scroll view has no superview at the time the images are added, the page indicator will not be created.

One person had a similar issue because the scroll view was not installed in the default size class, therefore it was not in the main view during the viewDidLoad call.

This made the page indicator disappear:

I hope that helps. Let me know how it goes.

[danielpassos]

@evgenyneu

Thanks for the very awesome reply. The only thing come in my mind now, is this view controller is embedded in a Container View.

Anyway, I will try to reproduce the same scenario in a clean/new app and play around tomorrow morning. I can publish it in my Github account and let you know here.

Thanks for the reply again!

[evgenyneu]

The container view may be the cause. To do a quick check I would print the value of scrollView.superview in the function where you show the images. If it's nil then the page control will not be created. In this case, you may want to show the images after the scroll view is added to the view, in viewWillAppear, for example.

[danielpassos]

Yeap, it is the problem, but seems I have the same using viewWillAppear

swift override func viewDidLoad() { print("scrollView.superview = (scrollView.superview)") }

scrollView.superview = nil

``` swift
override func viewWillAppear(animated: Bool) {
    print("scrollView.superview = \(scrollView.superview)")
}

scrollView.superview = nil

[danielpassos]

I did the same scenario I have in the clean/new app and it works like a charm with the same code, so it's seem be a specific problem in my project. I'll investigate. Thanks for your help anyway