Disable UIPageViewController Swipe - Swift

Question

In my project i use UIPageViewController to swipe between 5 child UIViewController. In some of child view controller, i need to disable the swipe gesture of the UIPageViewController so when user swipe it not change to other view. So how i can disable the swipe from the child view controller?

Appreciate for help..thanks

Check out my answer here: https://stackoverflow.com/a/74746243/8738937 — Shahriyar, Dec 09 '22 at 17:11

score 24 · Accepted Answer · answered Aug 02 '16 at 03:07

24

In your page view controller, add following

override func viewDidLoad(){
    super.viewDidLoad()
    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(yourpageviewcontroller.enableSwipe(_:)), name:"enableSwipe", object: nil)
    NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(yourpageviewcontroller.disableSwipe(_:)), name:"disableSwipe", object: nil)

}
func disableSwipe(notification: NSNotification){
    self.dataSource = nil
}

func enableSwipe(notification: NSNotification){
    self.dataSource = self
}

In your child view controller, you can just post notification by following.

NSNotificationCenter.defaultCenter().postNotificationName("enableSwipe", object: nil)

OR

NSNotificationCenter.defaultCenter().postNotificationName("disableSwipe", object: nil)

answered Aug 02 '16 at 03:07

Rurouni

963
10
31

Hi, its working for swipe but it also block the scroll up and down since my child has uitableview. How to make the tableview keep scroll also?thanks – Voyager Aug 02 '16 at 03:42
Please check your child view's 'User Interaction Enabled' and also In your tableView, make sure Scrolling Enabled check box is checked – Rurouni Aug 02 '16 at 03:47
it turns out that my logic for checking the offset its wrong. so i accepted the answer. Thanks! – Voyager Aug 02 '16 at 04:06
Thank you very much, such a clean answer, +1 :) – mAc Aug 29 '17 at 21:30
1

This is really what I needed! I didnt know you could do that kind of things with Notification Center! thanks man – arvidurs Sep 29 '17 at 06:32

score 6 · Answer 2 · answered Dec 12 '19 at 06:14

You can use this extension:

extension UIPageViewController {
     var isPagingEnabled: Bool {
        get {
           var isEnabled: Bool = true
           for view in view.subviews {
               if let subView = view as? UIScrollView {
                   isEnabled = subView.isScrollEnabled
               }
           }
           return isEnabled
       }
       set {
           for view in view.subviews {
               if let subView = view as? UIScrollView {
                   subView.isScrollEnabled = newValue
               }
           }
       }
   }    
}

and call this:

pageCtrl.isPagingEnabled = false

Unless Apple changes the view hierarchy, i.e. so that the scroll view sits inside a container view of some kind. — Ash, Oct 29 '22 at 05:08

Disable UIPageViewController Swipe - Swift

2 Answers2

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