How do I add fling to a Modifier.draggable, with snapping to a set of values if possibe?

# compose

[Francois Morvillier]

How do I add fling to a Modifier.draggable, with snapping to a set of values if possibe?

[Tash]

Here's an example of a drag + fling
https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/[…]s/src/main/java/androidx/compose/animation/demos/FlingGame.kt

Uses Modifier.pointerInput though.

[Francois Morvillier]

Much thanks! Looks like I could make this work though I was hoping for something a bit simpler.

[Albert Chang]

What about Modifier.swipeable()?

[Francois Morvillier]

Thanks Albert, that looks like what I was after. Will need to see if it actually fits my use case because I want to be able to fling over several states if velocity is sufficient. Is there any resource that covers how to use it in depth?

[Albert Chang]

I think the example in the doc is quite easy to understand. However I don't think what you want is possible using swipeable. I suggest you take a look at Modifier.scrollable() which has a FlingBehavior parameter by which you can use your own fling logic.

[Albert Chang]

Just note that in beta02 FlingBehavior won't be called if there's no fling velocity. This will be fixed in beta03.

[cb]

You might want to have a look at the pager implemenation: https://github.com/google/accompanist/tree/snapshot/pager/src/main/java/com/google/accompanist/pager