msfjarvis/compose-lobsters
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android: refactor navigation destinations

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Harsh Shandilya 2021-10-15 14:26:29 +05:30
parent 45db8e8486
commit 7eddd653c5
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GPG key ID: 366D7BBAD1031E80
2 changed files with 13 additions and 3 deletions
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6
android/src/main/kotlin/dev/msfjarvis/claw/android/ui/Destinations.kt Normal file
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@ -0,0 +1,6 @@
package dev.msfjarvis.claw.android.ui
object Destinations {
const val Hottest = "hottest"
const val Comments = "comments/%s"
}

10
android/src/main/kotlin/dev/msfjarvis/claw/android/ui/LobstersApp.kt
View file

@ -50,6 +50,7 @@ fun LobstersApp(
val scaffoldState = rememberScaffoldState() val scaffoldState = rememberScaffoldState()
val listState = rememberLazyListState() val listState = rememberLazyListState()
val navController = rememberNavController() val navController = rememberNavController()
var currentDestination by remember { mutableStateOf(Destinations.Hottest) }
var isFabVisible by remember { mutableStateOf(true) } var isFabVisible by remember { mutableStateOf(true) }
val nestedScrollConnection = remember { val nestedScrollConnection = remember {
object : NestedScrollConnection { object : NestedScrollConnection {
@ -74,7 +75,7 @@ fun LobstersApp(
} }
override fun viewComments(postId: String) { override fun viewComments(postId: String) {
navController.navigate("comments/$postId") navController.navigate(Destinations.Comments.format(postId))
} }
override fun toggleSave(post: SavedPost) { override fun toggleSave(post: SavedPost) {
@ -82,6 +83,9 @@ fun LobstersApp(
} }
} }
} }
navController.addOnDestinationChangedListener { _, destination, _ ->
currentDestination = destination.route ?: Destinations.Hottest
}
LobstersTheme(darkTheme = isSystemInDarkTheme()) { LobstersTheme(darkTheme = isSystemInDarkTheme()) {
ProvideWindowInsets { ProvideWindowInsets {
val useDarkIcons = MaterialTheme.colors.isLight val useDarkIcons = MaterialTheme.colors.isLight
@ -98,7 +102,7 @@ fun LobstersApp(
topBar = { ClawAppBar(modifier = Modifier.statusBarsPadding()) }, topBar = { ClawAppBar(modifier = Modifier.statusBarsPadding()) },
floatingActionButton = { floatingActionButton = {
ClawFab( ClawFab(
isFabVisible = isFabVisible && navController.currentDestination?.route == "hottest", isFabVisible = isFabVisible && currentDestination == "hottest",
listState = listState, listState = listState,
modifier = Modifier.navigationBarsPadding(), modifier = Modifier.navigationBarsPadding(),
) )
@ -115,7 +119,7 @@ fun LobstersApp(
Modifier.nestedScroll(nestedScrollConnection), Modifier.nestedScroll(nestedScrollConnection),
) )
} }
composable("comments/{postId}") { backStackEntry -> composable(Destinations.Comments.format("{postId}")) { backStackEntry ->
CommentsPage( CommentsPage(
postId = requireNotNull(backStackEntry.arguments?.getString("postId")), postId = requireNotNull(backStackEntry.arguments?.getString("postId")),
getDetails = viewModel::getPostComments, getDetails = viewModel::getPostComments,