I am using ScrollPager in code and trying to set up with my viewControllers. These controllers are using AutoLayout to setup constraints.

let library = ImagePickerController()

let photo = CameraViewController()

lazy var bottomScrollPager: ScrollPager = { [unowned self] in
  let scrollPager = ScrollPager()
  scrollPager.translatesAutoresizingMaskIntoConstraints = false
  scrollPager.addSegmentsWithTitlesAndViews([("LIBRARY", self.library.view),("PHOTO", self.photo.view),("VIDEO", UIView())])
  scrollPager.delegate = self
  return scrollPager
}()

But the views did not appear. Also application crashed:

fatal error: unexpectedly found nil while unwrapping an Optional value

Error shows on the for view in scrollView!.subviews line;

private func addViews(segmentViews: [UIView]) {
    for view in scrollView!.subviews {
        view.removeFromSuperview()
    }

    for i in 0..<segmentViews.count {
        let view = segmentViews[i]
        scrollView!.addSubview(view)
        views.append(view)
    }
}

I noticed that the scrollView is optional which marked with ? and when I am not in IB or xib. I guess that the reason why the crash happened?

When setSelectedIndex is called, the error :Array is out of index is thrown, when i debugged your code, i found viewarray doesn't have any views also the buttons array !

How I can add a viewController to the ScrollPager? In my case i have a collectionView In a view controller and i want load like a view in the scrollPager. I do this, but it shows a with view.

let viewController = ViewController() let fourthView = viewController.view scrollPager.delegate = self scrollPager.addSegmentsWithTitlesAndViews([ ("Profile", thirdView), ("One More", fourthView) ]) scrollPager.delegate = self

Can u help me? I really need this scrollPager

Hello, how to show view controllers instead of UIView(UILabel) on each page?

I've searched on Google that I can used container view controllers. But I'm a bit stuck to combined it with this library?

can you give me some hints how to implement it? or maybe examples code.

Thank you very much and sorry for my bad English.

best regards,

Hey, is it possible to disable horizontal scrolling? I only want the buttons to change the views because my views are all table views and I want to enable actions on table cells.

Hi,

I really love what you did so far with the ScrollPager, it's really well implemented & easy to understand.

One question though :

• Is it possible to horizontally scroll between the segments if there is too many ?

Thanks.

Hi, how can I add a view that belongs to a view controller? If I do that, when I interact with something it crashes without exception. You know how to make some work around? I really want to use this on my project.

Thanks

When using the ScrollPager class in an Objective-C project, the below function: public func addSegmentsWithTitlesAndViews(segments: [(title: String, view: UIView)]) doesn't appear in the header file created by xcode (addSegmentsWithTitles is included and works perfectly).

Any idea why? Or if there's a turnaround to adding different/same subview in all scroll indexes ?

Thank you

GitHub changed the way Markdown headings are parsed, so this change fixes it.

See bryant1410/readmesfix for more information.

Tackles bryant1410/readmesfix#1

helllo

in have a problem with this awesome library man ... my problem is when i use this library i cant change the background color of scrollview ... is this a issue or do you have any idea ????

sorry for my bad english and thank you :)

Hi!

I want to add a webview on each page, but how do I do this? So if you slide to the next page the next webview shows up. Swift is pretty new for me so it would be great if you could help me out with this problem :)

Thanks!

fix: #33

• Fixed the orientation change issue by moving the procedures from scrollViewDidScroll to scrollViewDidEndDecelerating and recalculate the contentOffset in redrawComponents.

• Supported Swift 5.

• Updated Deployment Target to 9.0

• Modified ScrollPager.podspec and .travis.yml

i have a menu with multi items , and it' scale to fit screen. with alot .(dot) .... i want it slide like other tabbar .

when i put scrollpage to a scrollview. it's work, but . the scroll not auto run to the item when i change the view.!

Hi, I have 4 views with Labels. When I change orientation the view is in wrong position (I think the scroll view is responsible for this).

This is how it looks

and from landscape to portrait

I have managed to do some nasty hack with this code

var lastIndex = 0

func scrollPager(scrollPager: ScrollPager, changedIndex: Int) {
    print("scrollPager index changed: \(changedIndex)")
    lastIndex = changedIndex
}

override func willTransition(to newCollection: UITraitCollection, with coordinator: UIViewControllerTransitionCoordinator) {
    coordinator.animate(alongsideTransition: nil) { _ in
            
        self.scrollPager.setSelectedIndex(index: self.lastIndex, animated: false)
    }
}

It would be much better when selectedIndex property was public (the getter) than private because I wouldn't have to remember the index. Please fix this to scroll automatically to right view when orientation changes.