need to invoke function on last slide using swipeBy

Hey guys , I wonder if there is any way to get the index number I am on using the swipeBy method. I need it to invoke function on last slide.

I currently have this button and it swipe the slides by pressing it using this.swiper.swipeBy. The problem is when loop={false} - it moves to grey screen when there is no more slides.

What I need is instead of moving to grey screen - to invoke function.

I tried to use

   onIndexChanged={index => {
       if (index == 3) {
         this.props.navigation.navigate("SomePage");
       }
   }}

But it wasn't great and it first showed the grey screen and only when invoked my function.

I wonder if there is any solution for this. Thanks!

Start by tracing the swiper component's swipeBy method and its onIndexChanged callback behavior. Reproduce the loop={false} case and check how the final slide is handled. Done means reaching the last slide does not show a grey screen and instead permits the requested navigation callback.