datasource method not called

[parth0072]

I have try to implemented zlswipeview into swift but data source method not called I try multiple ways but method required func nextView(for swipeableView: ZLSwipeableView) -> UIView not called.

` let swipperView = ZLSwipeableView(frame: self.swipeView.frame)

    self.view.addSubview(swipperView)

   swipperView.delegate = self

    swipperView.dataSource = self

`

please let me know if I doing something wrong.

Thanks

[ArthurZK]

In my project, datasource method called in the first time ,when it has been alloced. After that, it`s never been called while the project is running.

[ArthurZK]

I had fixed this issue by changing its property modifiers