IssueTracker

Seeing the same issue in ModalBottomSheet from material3-android -> 1.4.0-alpha05.

This is due to new motionScheme property. Previously the bug was fixed by using tween animation and starting from 1.4 spring is used again.

We can either use an "effects" motion, which is not bouncy and will not cause the animation values over or under 1 and -1. But I recall we have taken care of this problem specifically for this this component at https://cs.android.com/androidx/platform/frameworks/support/+/androidx-main:compose/material3/material3/src/commonMain/kotlin/androidx/compose/material3/ModalBottomSheet.kt;l=355 and line 378. The modifiers there apply verticalScaleUp and then verticalScaleDown to eliminate the gap as the bounciness happens.

A few questions for the reporter:

1. Can you provide some code to replicate it.
2. Did you make changes to the MotionScheme default values? Did you pick standard or expressive as a motion scheme in the MaterialTheme?

Thanks

(Reassigning the issue internally to receive updates when the 1.7.x release for material-navigation goes out)

That release is still missing the implementation of bottomSheet with a KClass:

public inline fun <reified T : Any> NavGraphBuilder.bottomSheet(
    typeMap: Map<KType, @JvmSuppressWildcards NavType<*>> = emptyMap(),
    .....

I am waiting for that release for a really long time and it is still only available in an alpha version. At least cherry pick this one commit into the next release if it takes a long time to release 1.8

Still waiting for a stable release