How to hide dots on last view of UIPageViewController SWIFT

Question

I want to be able to hide the pagination dots on the last view of a UIPageViewController. There is this question which has already asked it but it is never answered.

If someone could just give me an overview of how this is achievable.

Thanks

EDIT:

func pageViewController(pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
        pageControl.hidden = true
        print(pageControl.hidden)//Always is false
    }

Eduardo Oliveros · Answer 1 · 2016-08-24T15:05:21.187

2

use the UIPageViewControllerDelegate method:

let pageControl = UIPageControl()

override func viewDidLoad(){
    super.viewDidLoad()
    pageControl.numberOfPages = numberOfPages()
    pageControl.currentPage = 0
    view.addSubview(pageControl)
    pageControl.currentPageIndicatorTintColor = UIColor.whiteColor()
    pageControl.pageIndicatorTintColor = UIColor.whiteColor().colorWithAlphaComponent(0.4)
}

func numberOfPages() -> Int {
    return 4 //your number of pages
}

func pageViewController(pageViewController: UIPageViewController, didFinishAnimating finished: Bool, previousViewControllers: [UIViewController], transitionCompleted completed: Bool) {
    if (index == numberOfPages()-1){
          pageControl.hidden = true
    }else{
          pageControl.hidden = false
    }
}

too you can migrate to icarousel its very powerful and easily to implement https://www.youtube.com/watch?v=OLvZbXOAZQY

edited Aug 24 '16 at 15:05

answered Aug 17 '16 at 15:43

Eduardo Oliveros

863
9
20

Thanks, although now I am getting error: 'Cannot convert value of type '(UnsafePointer, Int32) -> UnsafeMutablePointer' to expected argument type 'Int'' on the 'numberOfPages' line – Henry Brown Aug 17 '16 at 15:46
numberOfPages is that, you can use a constant or a method like me: func numberOfPages() -> Int { return 4 } – Eduardo Oliveros Aug 17 '16 at 15:51
Sorry I am confused. 'numberOfPages' is 4. so I have just replaced 'numberOfPages()-1' with 3. What else can I do? – Henry Brown Aug 17 '16 at 15:53
Thanks for this update, although it is telling me the same first error which I said ^^^ – Henry Brown Aug 17 '16 at 15:59
because is the index, if you have 4 pages the indexes are: 0 1 2 and 3, 3 is the index of the last page – Eduardo Oliveros Aug 17 '16 at 15:59
ok thanks. again I am getting the same error: "Cannot convert value of type '(UnsafePointer, Int32) -> UnsafeMutablePointer' to expected argument type 'Int'' – Henry Brown Aug 17 '16 at 16:02
Also the 'pageControl.hidden = true' never works. It always stays false. I only works if you use it in the viewDidLoad. – Henry Brown Aug 17 '16 at 18:19
@HenryBrown are you sure? this property can be change anywhere, and not only with Pager, with anyone element, UIView, UIButton etc – Eduardo Oliveros Aug 17 '16 at 19:39
Yes I'm sure, if you see the question I have provided above he is having the same problem as me. He is not sure why either – Henry Brown Aug 17 '16 at 19:44
@HenryBrown try to put the control into a view as subview, and hidde the view, maybe works it for you – Eduardo Oliveros Aug 17 '16 at 19:59
No this also doesn't work I tried it. It also stays as false even though it is turned true. – Henry Brown Aug 17 '16 at 20:03
sorry bro! it worked for me, i need see your project to identify what things its wrong... – Eduardo Oliveros Aug 17 '16 at 20:08
Could you update your code with what you used as I might be getting it wrong and it not I can send you? Thanks for your help man – Henry Brown Aug 17 '16 at 20:14
@HenryBrown you use the datasource to show the control? or use an independent element?, i use an independent element its more flexible. – Eduardo Oliveros Aug 17 '16 at 20:15
I have updated my code with what I have done, pageControl.hidden is always false even when I have tried to turn it to true. – Henry Brown Aug 17 '16 at 20:20
Also I put this function inside the datasource – Henry Brown Aug 18 '16 at 08:30
I put it inside the independent element and it is not now printing true but it still does not hide. It's like it can't happen... – Henry Brown Aug 18 '16 at 09:10

How to hide dots on last view of UIPageViewController SWIFT

1 Answers1