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Fix bottom dialog sheet nested scrolling

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MM20 2022-07-31 15:38:19 +02:00
parent 7af9a44bfa
commit a0cec95aa7
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GPG Key ID: 0B61A8F2DEAFA389
1 changed files with 23 additions and 21 deletions
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44
ui/src/main/java/de/mm20/launcher2/ui/component/BottomSheetDialog.kt
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@ -57,11 +57,12 @@ fun BottomSheetDialog(
object : NestedScrollConnection {
override fun onPreScroll(available: Offset, source: NestedScrollSource): Offset {
if (available.y > 0) {
return super.onPreScroll(available, source)
val delta = available.toFloat()
return if (delta < 0 && source == NestedScrollSource.Drag) {
swipeState.performDrag(delta).toOffset()
} else {
Offset.Zero
}
val c = swipeState.performDrag(available.y)
return Offset(0f, c)
}
override fun onPostScroll(
@ -69,31 +70,32 @@ fun BottomSheetDialog(
available: Offset,
source: NestedScrollSource
): Offset {
if (available.y < 0) {
return super.onPreScroll(available, source)
return if (source == NestedScrollSource.Drag) {
swipeState.performDrag(available.toFloat()).toOffset()
} else {
Offset.Zero
}
val c = swipeState.performDrag(available.y)
return Offset(0f, c)
}
override suspend fun onPreFling(available: Velocity): Velocity {
if (available.y > 0) {
return super.onPreFling(available)
val toFling = Offset(available.x, available.y).toFloat()
return if (toFling < 0 && swipeState.offset.value > 0) {
swipeState.performFling(velocity = toFling)
// since we go to the anchor with tween settling, consume all for the best UX
available
} else {
Velocity.Zero
}
swipeState.performFling(available.y)
return available.copy(x = 0f)
}
override suspend fun onPostFling(
consumed: Velocity,
available: Velocity
): Velocity {
if (available.y < 0) {
return super.onPostFling(consumed, available)
}
swipeState.performFling(available.y)
return available.copy(x = 0f)
override suspend fun onPostFling(consumed: Velocity, available: Velocity): Velocity {
swipeState.performFling(velocity = Offset(available.x, available.y).toFloat())
return available
}
private fun Float.toOffset(): Offset = Offset(0f, this)
private fun Offset.toFloat(): Float = this.y
}
}