mirror of
https://github.com/msfjarvis/compose-lobsters
synced 2025-08-18 00:57:02 +05:30
main: split out LobstersApp
Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>
This commit is contained in:
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2 changed files with 114 additions and 112 deletions
114
app/src/main/java/dev/msfjarvis/lobsters/ui/main/LobstersApp.kt
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114
app/src/main/java/dev/msfjarvis/lobsters/ui/main/LobstersApp.kt
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@ -0,0 +1,114 @@
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package dev.msfjarvis.lobsters.ui.main
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.lazy.rememberLazyListState
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import androidx.compose.material.BottomNavigation
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import androidx.compose.material.BottomNavigationItem
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import androidx.compose.material.Scaffold
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import androidx.compose.material.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.collectAsState
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import androidx.compose.runtime.getValue
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import androidx.compose.runtime.rememberCoroutineScope
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.platform.testTag
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import androidx.compose.ui.res.stringResource
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import androidx.lifecycle.viewmodel.compose.viewModel
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import androidx.navigation.compose.KEY_ROUTE
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import androidx.navigation.compose.NavHost
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import androidx.navigation.compose.composable
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import androidx.navigation.compose.currentBackStackEntryAsState
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import androidx.navigation.compose.navigate
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import androidx.navigation.compose.rememberNavController
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import androidx.paging.compose.collectAsLazyPagingItems
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import dev.msfjarvis.lobsters.ui.navigation.Destination
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import dev.msfjarvis.lobsters.ui.posts.HottestPosts
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import dev.msfjarvis.lobsters.ui.posts.SavedPosts
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import dev.msfjarvis.lobsters.ui.viewmodel.LobstersViewModel
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import dev.msfjarvis.lobsters.util.IconResource
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import kotlinx.coroutines.launch
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@Composable
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fun LobstersApp() {
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val viewModel: LobstersViewModel = viewModel()
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val coroutineScope = rememberCoroutineScope()
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val navController = rememberNavController()
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val hottestPosts = viewModel.posts.collectAsLazyPagingItems()
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val savedPosts by viewModel.savedPosts.collectAsState()
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val hottestPostsListState = rememberLazyListState()
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val navBackStackEntry by navController.currentBackStackEntryAsState()
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val currentRoute =
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navBackStackEntry?.arguments?.getString(KEY_ROUTE) ?: Destination.startDestination.route
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val currentDestination = Destination.getDestinationFromRoute(currentRoute)
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val navigateToDestination: (destination: Destination) -> Unit = { destination ->
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navController.navigate(destination.route) {
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launchSingleTop = true
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popUpTo(navController.graph.startDestination) { inclusive = false }
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}
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}
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val jumpToIndex: (Int) -> Unit = {
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coroutineScope.launch {
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hottestPostsListState.snapToItemIndex(it)
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}
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}
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Scaffold(
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bottomBar = {
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LobstersBottomNav(
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currentDestination,
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navigateToDestination,
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jumpToIndex,
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)
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},
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) { innerPadding ->
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NavHost(navController, startDestination = Destination.startDestination.route) {
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composable(Destination.Hottest.route) {
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HottestPosts(
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posts = hottestPosts,
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listState = hottestPostsListState,
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isPostSaved = viewModel::isPostSaved,
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saveAction = viewModel::toggleSave,
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modifier = Modifier.padding(bottom = innerPadding.calculateBottomPadding()),
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)
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}
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composable(Destination.Saved.route) {
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SavedPosts(
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posts = savedPosts,
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saveAction = viewModel::toggleSave,
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modifier = Modifier.padding(bottom = innerPadding.calculateBottomPadding()),
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)
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}
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}
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}
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}
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@Composable
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fun LobstersBottomNav(
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currentDestination: Destination,
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navigateToDestination: (destination: Destination) -> Unit,
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jumpToIndex: (index: Int) -> Unit,
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) {
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BottomNavigation(modifier = Modifier.testTag("LobstersBottomNav")) {
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Destination.values().forEach { screen ->
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BottomNavigationItem(
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icon = {
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IconResource(
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resourceId = screen.badgeRes,
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contentDescription = stringResource(screen.labelRes),
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)
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},
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label = { Text(stringResource(id = screen.labelRes)) },
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selected = currentDestination == screen,
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alwaysShowLabels = false,
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onClick = {
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if (screen != currentDestination) {
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navigateToDestination(screen)
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} else if (screen.route == Destination.Hottest.route) {
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jumpToIndex(0)
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}
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}
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)
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}
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}
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}
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@ -3,39 +3,12 @@ package dev.msfjarvis.lobsters.ui.main
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import android.os.Bundle
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import androidx.activity.compose.setContent
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import androidx.appcompat.app.AppCompatActivity
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import androidx.compose.foundation.layout.padding
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import androidx.compose.foundation.lazy.rememberLazyListState
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import androidx.compose.material.BottomNavigation
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import androidx.compose.material.BottomNavigationItem
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import androidx.compose.material.Scaffold
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import androidx.compose.material.Text
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import androidx.compose.runtime.Composable
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import androidx.compose.runtime.Providers
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import androidx.compose.runtime.collectAsState
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import androidx.compose.runtime.getValue
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import androidx.compose.runtime.rememberCoroutineScope
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import androidx.compose.ui.Modifier
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import androidx.compose.ui.platform.testTag
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import androidx.compose.ui.res.stringResource
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import androidx.lifecycle.viewmodel.compose.viewModel
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import androidx.navigation.compose.KEY_ROUTE
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import androidx.navigation.compose.NavHost
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import androidx.navigation.compose.composable
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import androidx.navigation.compose.currentBackStackEntryAsState
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import androidx.navigation.compose.navigate
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import androidx.navigation.compose.rememberNavController
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import androidx.paging.compose.collectAsLazyPagingItems
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import dagger.hilt.android.AndroidEntryPoint
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import dev.msfjarvis.lobsters.ui.navigation.Destination
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import dev.msfjarvis.lobsters.ui.posts.HottestPosts
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import dev.msfjarvis.lobsters.ui.posts.SavedPosts
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import dev.msfjarvis.lobsters.ui.theme.LobstersTheme
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import dev.msfjarvis.lobsters.ui.urllauncher.LocalUrlLauncher
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import dev.msfjarvis.lobsters.ui.urllauncher.UrlLauncher
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import dev.msfjarvis.lobsters.ui.viewmodel.LobstersViewModel
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import dev.msfjarvis.lobsters.util.IconResource
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import javax.inject.Inject
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import kotlinx.coroutines.launch
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@AndroidEntryPoint
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class MainActivity : AppCompatActivity() {
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@ -52,88 +25,3 @@ class MainActivity : AppCompatActivity() {
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}
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}
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}
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@Composable
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fun LobstersApp() {
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val viewModel: LobstersViewModel = viewModel()
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val coroutineScope = rememberCoroutineScope()
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val navController = rememberNavController()
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val hottestPosts = viewModel.posts.collectAsLazyPagingItems()
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val savedPosts by viewModel.savedPosts.collectAsState()
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val hottestPostsListState = rememberLazyListState()
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val navBackStackEntry by navController.currentBackStackEntryAsState()
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val currentRoute =
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navBackStackEntry?.arguments?.getString(KEY_ROUTE) ?: Destination.startDestination.route
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val currentDestination = Destination.getDestinationFromRoute(currentRoute)
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val navigateToDestination: (destination: Destination) -> Unit = { destination ->
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navController.navigate(destination.route) {
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launchSingleTop = true
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popUpTo(navController.graph.startDestination) { inclusive = false }
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}
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}
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val jumpToIndex: (Int) -> Unit = {
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coroutineScope.launch {
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hottestPostsListState.snapToItemIndex(it)
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}
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}
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Scaffold(
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bottomBar = {
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LobstersBottomNav(
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currentDestination,
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navigateToDestination,
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jumpToIndex,
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)
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},
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) { innerPadding ->
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NavHost(navController, startDestination = Destination.startDestination.route) {
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composable(Destination.Hottest.route) {
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HottestPosts(
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posts = hottestPosts,
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listState = hottestPostsListState,
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isPostSaved = viewModel::isPostSaved,
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saveAction = viewModel::toggleSave,
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modifier = Modifier.padding(bottom = innerPadding.calculateBottomPadding()),
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)
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}
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composable(Destination.Saved.route) {
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SavedPosts(
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posts = savedPosts,
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saveAction = viewModel::toggleSave,
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modifier = Modifier.padding(bottom = innerPadding.calculateBottomPadding()),
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)
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}
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}
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}
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}
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@Composable
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fun LobstersBottomNav(
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currentDestination: Destination,
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navigateToDestination: (destination: Destination) -> Unit,
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jumpToIndex: (index: Int) -> Unit,
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) {
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BottomNavigation(modifier = Modifier.testTag("LobstersBottomNav")) {
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Destination.values().forEach { screen ->
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BottomNavigationItem(
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icon = {
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IconResource(
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resourceId = screen.badgeRes,
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contentDescription = stringResource(screen.labelRes),
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)
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},
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label = { Text(stringResource(id = screen.labelRes)) },
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selected = currentDestination == screen,
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alwaysShowLabels = false,
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onClick = {
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if (screen != currentDestination) {
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navigateToDestination(screen)
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} else if (screen.route == Destination.Hottest.route) {
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jumpToIndex(0)
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}
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}
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)
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}
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}
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}
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