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- Inverts the scroll to hide for channels and chats

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- Awaits half of the bar to change visibility
This commit is contained in:
Vitor Pamplona 2023-09-20 21:21:13 -04:00
parent dab02f2cbd
commit 384594ba5c
2 changed files with 28 additions and 8 deletions
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8
app/src/main/java/com/vitorpamplona/amethyst/ui/navigation/Routes.kt
View File

@ -150,6 +150,14 @@ sealed class Route(
route = "Settings",
icon = R.drawable.ic_settings
)
companion object {
val InvertedLayouts = setOf(
Channel.route,
Room.route,
RoomByAuthor.route
)
}
}
// **

28
app/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/MainScreen.kt
View File

@ -42,6 +42,7 @@ import com.vitorpamplona.amethyst.ui.buttons.NewCommunityNoteButton
import com.vitorpamplona.amethyst.ui.buttons.NewImageButton
import com.vitorpamplona.amethyst.ui.buttons.NewNoteButton
import com.vitorpamplona.amethyst.ui.navigation.*
import com.vitorpamplona.amethyst.ui.navigation.Route.Companion.InvertedLayouts
import com.vitorpamplona.amethyst.ui.note.UserReactionsViewModel
import com.vitorpamplona.amethyst.ui.screen.AccountState
import com.vitorpamplona.amethyst.ui.screen.AccountStateViewModel
@ -56,6 +57,7 @@ import com.vitorpamplona.amethyst.ui.screen.NostrVideoFeedViewModel
import com.vitorpamplona.amethyst.ui.screen.NotificationViewModel
import com.vitorpamplona.amethyst.ui.screen.ThemeViewModel
import kotlinx.coroutines.launch
import kotlin.math.abs
@OptIn(ExperimentalMaterialApi::class, ExperimentalAnimationApi::class)
@Composable
@ -193,8 +195,7 @@ fun MainScreen(
}
}
val bottomBarHeight = 50.dp
val bottomBarHeightPx = with(LocalDensity.current) { bottomBarHeight.roundToPx().toFloat() }
val bottomBarHeightPx = with(LocalDensity.current) { 50.dp.roundToPx().toFloat() }
val bottomBarOffsetHeightPx = remember { mutableStateOf(0f) }
val nestedScrollConnection = remember {
@ -202,13 +203,24 @@ fun MainScreen(
override fun onPreScroll(available: Offset, source: NestedScrollSource): Offset {
val delta = available.y
val newOffset = bottomBarOffsetHeightPx.value + delta
bottomBarOffsetHeightPx.value = newOffset.coerceIn(-bottomBarHeightPx, 0f)
val currentRoute = navState.value?.destination?.route
bottomBarOffsetHeightPx.value = if (currentRoute !in InvertedLayouts) {
newOffset.coerceIn(-bottomBarHeightPx, 0f)
} else {
newOffset.coerceIn(0f, bottomBarHeightPx)
}
return Offset.Zero
}
}
}
val shouldShow = bottomBarOffsetHeightPx.value == 0f
val shouldShow = remember {
derivedStateOf {
abs(bottomBarOffsetHeightPx.value) < bottomBarHeightPx / 2.0f
}
}
ModalBottomSheetLayout(
sheetState = sheetState,
@ -223,7 +235,7 @@ fun MainScreen(
.nestedScroll(nestedScrollConnection),
bottomBar = {
AnimatedContent(
targetState = shouldShow,
targetState = shouldShow.value,
transitionSpec = {
slideInVertically { height -> height } togetherWith
slideOutVertically { height -> height }
@ -236,7 +248,7 @@ fun MainScreen(
},
topBar = {
AnimatedContent(
targetState = shouldShow,
targetState = shouldShow.value,
transitionSpec = {
slideInVertically { height -> 0 } togetherWith
slideOutVertically { height -> 0 }
@ -262,7 +274,7 @@ fun MainScreen(
},
floatingActionButton = {
Crossfade(
targetState = shouldShow,
targetState = shouldShow.value,
animationSpec = tween(durationMillis = 100)
) { state ->
if (state) {
@ -280,7 +292,7 @@ fun MainScreen(
) {
Column(
modifier = Modifier
.padding(bottom = if (bottomBarOffsetHeightPx.value == 0f || navState.value?.destination?.route != Route.Home.base) it.calculateBottomPadding() else 0.dp)
.padding(bottom = if (shouldShow.value) it.calculateBottomPadding() else 0.dp)
) {
AppNavigation(
homeFeedViewModel = homeFeedViewModel,