How to detect swiping or selecting event in XLPagerTabStrip swift

Question

I am going to detect the swiping or selecting tab event in XLPagerTabStrip library in Swift 4. I only need to get the tab index whenever selected tab is changed. So I have checked library in Github but not found any good solutions.

thanks.

Answer 1

You can simply override updateContent

override func updateContent() {
    super.updateContent()
    // your code ....
}

Answer 2

So I didn't find a solution from the library itself but, I used viewWillDisappear and for every time you swipe away of the view this function will be called. Should be written as follows in your child view controller:

override func viewWillDisappear(_ animated: Bool) {
    //Do your thing here
}

You can read more about this callback function here.