How to update pageIndex?

[evgenyneu]

How to update pageIndex?

[evgenyneu]

Hi @Darwinium, good quesion. In order to update a label with the current page number one needs to detect the moment when user scrolls the scroll view. It can be done by implementing a scroll view delegate with the scrollViewDidScroll method:

1. Firstly, subclass your view controller from UIScrollViewDelegate:

class ViewController: UIViewController, UIScrollViewDelegate {

2. Secondly, assign the view controller to the delegate property of the scroll view. Make sure to assign the delegate before accessing scrollView.auk property.

override func viewDidLoad() {
    super.viewDidLoad()

    scrollView.delegate = self
    scrollView.auk.show(...

3. Finally, implement scrollViewDidScroll method in your view controller. In this method you can update your label with the index of the current page.

func scrollViewDidScroll(scrollView: UIScrollView) {
   imageIndex.text = String(scrollView.auk.currentPageIndex)
}

Good luck and let me know how it goes.

[Darwinium]

Hi again, evgenyneu

Thanks, it's work!

Few more questions:

1. How can I bind the picture to the bottom of UIScrollView regardless of the size of the image?
   Example how's now:
   http://joxi.ru/krDkgY1T0z09KA
   http://joxi.ru/eAO6EP0h4j4ej2
2. How can I do something like this? http://joxi.ru/Q2KqgPDH9J9Q8r

Thank you again and have a nice day)

[evgenyneu]

No worries. Sorry I do not understand your question. Can you explain a bit more? Do you want to show a part of the next image in the scroll view?

[Darwinium]

Exactly!

[evgenyneu]

Hi @Darwinium, unfortunately Auk only shows a single image at a time. But you can create such image view that shows a portion of the next image yourself. Here is a demo: https://github.com/evgenyneu/SneakPeekScroll

[evgenyneu]

Closing this issue. Feel free to reopen when needed.