I’m trying to understand this: <https://google.gi...

# compose

[Nick]

I’m trying to understand this:

https://google.github.io/accompanist/pager/#reacting-to-page-changes

The PagerState.currentPage property is updated whenever the selected page changes. You can use the snapshowFlow function to observe changes in a flow:

LaunchedEffect(pagerState) {
    snapshotFlow { pagerState.currentPage }.collect { page ->
        // Selected page has changed...
    }
}

Why can’t I just access the current page via pagerState.currentPage? Why do I have to wrap it in a LaunchedEffect and snapshotFlow?

[Nick]

In an example about integrating tabs with this, they directly access PagerState.currentTab

[cb]

Reading the value in composition is fine. That example is showing you how to turn page changes into an event stream, for things like analytics

[Nick]

ahh, ok thanks!