feat: 新 UI 双击底栏刷新

app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/MainPage.kt

@@ -18,6 +18,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -49,6 +50,7 @@ import com.huanchengfly.tieba.post.utils.appPreferences
 import com.ramcosta.composedestinations.annotation.Destination
 import com.ramcosta.composedestinations.annotation.RootNavGraph
 import com.ramcosta.composedestinations.navigation.DestinationsNavigator
+import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.launch
 
@@ -56,6 +58,7 @@ import kotlinx.coroutines.launch
 private fun NavigationWrapper(
     currentPosition: Int,
     onChangePosition: (position: Int) -> Unit,
+    onReselected: (position: Int) -> Unit,
     navigationItems: List<NavigationItem>,
     navigationType: MainNavigationType,
     navigationContentPosition: MainNavigationContentPosition,
@@ -66,6 +69,7 @@ private fun NavigationWrapper(
             NavigationDrawerContent(
                 currentPosition = currentPosition,
                 onChangePosition = onChangePosition,
+                onReselected = onReselected,
                 navigationItems = navigationItems,
                 navigationContentPosition = navigationContentPosition
             )
@@ -74,6 +78,7 @@ private fun NavigationWrapper(
             NavigationRail(
                 currentPosition = currentPosition,
                 onChangePosition = onChangePosition,
+                onReselected = onReselected,
                 navigationItems = navigationItems,
                 navigationContentPosition = navigationContentPosition
             )
@@ -100,6 +105,15 @@ fun MainPage(
         initial = 0
     )
 
+    val eventFlows = remember {
+        listOf(
+            MutableSharedFlow<MainUiEvent>(),
+            MutableSharedFlow<MainUiEvent>(),
+            MutableSharedFlow<MainUiEvent>(),
+            MutableSharedFlow<MainUiEvent>(),
+        )
+    }
+
     val notificationCountFlow = LocalNotificationCountFlow.current
     LaunchedEffect(null) {
         notificationCountFlow.collect {
@@ -118,13 +132,13 @@ fun MainPage(
             title = stringResource(id = R.string.title_main),
             content = {
                 HomePage(
-                    canOpenExplore = !LocalContext.current.appPreferences.hideExplore,
-                    onOpenExplore = {
-                        coroutineScope.launch {
-                            pagerState.scrollToPage(1)
-                        }
+                    eventFlow = eventFlows[0],
+                    canOpenExplore = !LocalContext.current.appPreferences.hideExplore
+                ) {
+                    coroutineScope.launch {
+                        pagerState.scrollToPage(1)
                     }
-                )
+                }
             }
         ),
         if (LocalContext.current.appPreferences.hideExplore) null
@@ -136,7 +150,7 @@ fun MainPage(
             },
             title = stringResource(id = R.string.title_explore),
             content = {
-                ExplorePage()
+                ExplorePage(eventFlows[1])
             }
         ),
         NavigationItem(
@@ -187,17 +201,25 @@ fun MainPage(
         WindowHeightSizeClass.Compact -> {
             MainNavigationContentPosition.TOP
         }
+
         WindowHeightSizeClass.Medium,
         WindowHeightSizeClass.Expanded -> {
             MainNavigationContentPosition.CENTER
         }
+
         else -> {
             MainNavigationContentPosition.TOP
         }
     }
+    val onReselected: (Int) -> Unit = {
+        coroutineScope.launch {
+            eventFlows[it].emit(MainUiEvent.Refresh)
+        }
+    }
     NavigationWrapper(
         currentPosition = pagerState.currentPage,
         onChangePosition = { coroutineScope.launch { pagerState.scrollToPage(it) } },
+        onReselected = onReselected,
         navigationItems = navigationItems,
         navigationType = navigationType,
         navigationContentPosition = navigationContentPosition
@@ -209,7 +231,10 @@ fun MainPage(
                 AnimatedVisibility(visible = navigationType == MainNavigationType.BOTTOM_NAVIGATION) {
                     BottomNavigation(
                         currentPosition = pagerState.currentPage,
-                        onChangePosition = { coroutineScope.launch { pagerState.scrollToPage(it) } },
+                        onChangePosition = {
+                            coroutineScope.launch { pagerState.scrollToPage(it) }
+                        },
+                        onReselected = onReselected,
                         navigationItems = navigationItems,
                         themeColors = themeColors,
                     )

app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/MainViewModel.kt

@@ -1,6 +1,11 @@
 package com.huanchengfly.tieba.post.ui.page.main
 
-import com.huanchengfly.tieba.post.arch.*
+import com.huanchengfly.tieba.post.arch.BaseViewModel
+import com.huanchengfly.tieba.post.arch.PartialChange
+import com.huanchengfly.tieba.post.arch.PartialChangeProducer
+import com.huanchengfly.tieba.post.arch.UiEvent
+import com.huanchengfly.tieba.post.arch.UiIntent
+import com.huanchengfly.tieba.post.arch.UiState
 import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.filterIsInstance
@@ -50,4 +55,6 @@ sealed interface MainPartialChange : PartialChange<MainUiState> {
 
 data class MainUiState(val messageCount: Int = 0) : UiState
 
-sealed interface MainUiEvent : UiEvent
+sealed interface MainUiEvent : UiEvent {
+    object Refresh : MainUiEvent
+}

app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/NavigationComponents.kt

@@ -129,6 +129,7 @@ fun NavigationDrawerItem(
 fun NavigationDrawerContent(
     currentPosition: Int,
     onChangePosition: (position: Int) -> Unit,
+    onReselected: (position: Int) -> Unit,
     navigationItems: List<NavigationItem>,
     navigationContentPosition: MainNavigationContentPosition
 ) {
@@ -191,7 +192,13 @@ fun NavigationDrawerContent(
                 navigationItems.forEachIndexed { index, navigationItem ->
                     NavigationDrawerItem(
                         selected = index == currentPosition,
-                        onClick = { onChangePosition(index) },
+                        onClick = {
+                            if (index == currentPosition) {
+                                onReselected(index)
+                            } else {
+                                onChangePosition(index)
+                            }
+                        },
                         label = { Text(text = navigationItem.title) },
                         icon = {
                             Box {
@@ -275,6 +282,7 @@ private fun PositionLayout(
 fun NavigationRail(
     currentPosition: Int,
     onChangePosition: (position: Int) -> Unit,
+    onReselected: (position: Int) -> Unit,
     navigationItems: List<NavigationItem>,
     navigationContentPosition: MainNavigationContentPosition
 ) {
@@ -296,7 +304,13 @@ fun NavigationRail(
             navigationItems.forEachIndexed { index, navigationItem ->
                 NavigationRailItem(
                     selected = index == currentPosition,
-                    onClick = { onChangePosition(index) },
+                    onClick = {
+                        if (index == currentPosition) {
+                            onReselected(index)
+                        } else {
+                            onChangePosition(index)
+                        }
+                    },
                     icon = {
                         Box {
                             Icon(
@@ -345,6 +359,7 @@ fun BottomNavigationDivider(
 fun BottomNavigation(
     currentPosition: Int,
     onChangePosition: (position: Int) -> Unit,
+    onReselected: (position: Int) -> Unit,
     navigationItems: List<NavigationItem>,
     themeColors: ExtendedColors = ExtendedTheme.colors
 ) {
@@ -358,7 +373,11 @@ fun BottomNavigation(
                 BottomNavigationItem(
                     selected = index == currentPosition,
                     onClick = {
-                        onChangePosition(index)
+                        if (index == currentPosition) {
+                            onReselected(index)
+                        } else {
+                            onChangePosition(index)
+                        }
                         navigationItem.onClick?.invoke()
                     },
                     icon = {

app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/ExplorePage.kt

@@ -9,6 +9,7 @@ import androidx.compose.material.Text
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.rounded.Search
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
@@ -21,8 +22,10 @@ import com.google.accompanist.pager.HorizontalPager
 import com.google.accompanist.pager.rememberPagerState
 import com.huanchengfly.tieba.post.R
 import com.huanchengfly.tieba.post.activities.NewSearchActivity
+import com.huanchengfly.tieba.post.arch.onEvent
 import com.huanchengfly.tieba.post.goToActivity
 import com.huanchengfly.tieba.post.ui.common.theme.compose.ExtendedTheme
+import com.huanchengfly.tieba.post.ui.page.main.MainUiEvent
 import com.huanchengfly.tieba.post.ui.page.main.explore.concern.ConcernPage
 import com.huanchengfly.tieba.post.ui.page.main.explore.hot.HotPage
 import com.huanchengfly.tieba.post.ui.page.main.explore.personalized.PersonalizedPage
@@ -31,27 +34,47 @@ import com.huanchengfly.tieba.post.ui.widgets.compose.PagerTabIndicator
 import com.huanchengfly.tieba.post.ui.widgets.compose.Toolbar
 import com.huanchengfly.tieba.post.ui.widgets.compose.accountNavIconIfCompact
 import com.huanchengfly.tieba.post.utils.AccountUtil.LocalAccount
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.MutableSharedFlow
 import kotlinx.coroutines.launch
 
 
 @OptIn(ExperimentalPagerApi::class)
 @Composable
-fun ExplorePage() {
+fun ExplorePage(
+    eventFlow: Flow<MainUiEvent>,
+) {
     val account = LocalAccount.current
     val context = LocalContext.current
+
+    val eventFlows = remember {
+        listOf(
+            MutableSharedFlow<MainUiEvent>(),
+            MutableSharedFlow<MainUiEvent>(),
+            MutableSharedFlow<MainUiEvent>()
+        )
+    }
+
+    val firstIndex = if (account != null) 0 else -1
+
     val pages = listOfNotNull<Pair<String, (@Composable () -> Unit)>>(
         if (account != null) stringResource(id = R.string.title_concern) to @Composable {
-            ConcernPage()
+            ConcernPage(eventFlows[firstIndex + 0])
         } else null,
         stringResource(id = R.string.title_personalized) to @Composable {
-            PersonalizedPage()
+            PersonalizedPage(eventFlows[firstIndex + 1])
         },
         stringResource(id = R.string.title_hot) to @Composable {
-            HotPage()
+            HotPage(eventFlows[firstIndex + 2])
         },
     )
     val pagerState = rememberPagerState(initialPage = if (account != null) 1 else 0)
     val coroutineScope = rememberCoroutineScope()
+
+    eventFlow.onEvent<MainUiEvent.Refresh> {
+        eventFlows[pagerState.currentPage].emit(it)
+    }
+
     Scaffold(
         backgroundColor = Color.Transparent,
         topBar = {
@@ -88,7 +111,11 @@ fun ExplorePage() {
                             selected = pagerState.currentPage == index,
                             onClick = {
                                 coroutineScope.launch {
-                                    pagerState.animateScrollToPage(index)
+                                    if (pagerState.currentPage == index) {
+                                        eventFlows[pagerState.currentPage].emit(MainUiEvent.Refresh)
+                                    } else {
+                                        pagerState.animateScrollToPage(index)
+                                    }
                                 }
                             },
                         )

app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/concern/ConcernPage.kt

@@ -19,16 +19,20 @@ import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.unit.dp
 import com.huanchengfly.tieba.post.activities.ThreadActivity
 import com.huanchengfly.tieba.post.arch.collectPartialAsState
+import com.huanchengfly.tieba.post.arch.onEvent
 import com.huanchengfly.tieba.post.arch.pageViewModel
 import com.huanchengfly.tieba.post.arch.wrapImmutable
+import com.huanchengfly.tieba.post.ui.page.main.MainUiEvent
 import com.huanchengfly.tieba.post.ui.widgets.compose.FeedCard
 import com.huanchengfly.tieba.post.ui.widgets.compose.LazyLoad
 import com.huanchengfly.tieba.post.ui.widgets.compose.LoadMoreLayout
 import com.huanchengfly.tieba.post.ui.widgets.compose.VerticalDivider
+import kotlinx.coroutines.flow.Flow
 
 @OptIn(ExperimentalFoundationApi::class, ExperimentalMaterialApi::class)
 @Composable
 fun ConcernPage(
+    eventFlow: Flow<MainUiEvent>,
     viewModel: ConcernViewModel = pageViewModel()
 ) {
     LazyLoad(loaded = viewModel.initialized) {
@@ -55,6 +59,11 @@ fun ConcernPage(
     val pullRefreshState = rememberPullRefreshState(
         refreshing = isRefreshing,
         onRefresh = { viewModel.send(ConcernUiIntent.Refresh) })
+
+    eventFlow.onEvent<MainUiEvent.Refresh> {
+        viewModel.send(ConcernUiIntent.Refresh)
+    }
+
     Box(
         modifier = Modifier.pullRefresh(pullRefreshState)
     ) {

app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/hot/HotPage.kt

@@ -47,6 +47,7 @@ import com.google.accompanist.placeholder.material.placeholder
 import com.huanchengfly.tieba.post.R
 import com.huanchengfly.tieba.post.api.models.protos.ThreadInfo
 import com.huanchengfly.tieba.post.arch.collectPartialAsState
+import com.huanchengfly.tieba.post.arch.onEvent
 import com.huanchengfly.tieba.post.arch.pageViewModel
 import com.huanchengfly.tieba.post.ui.common.theme.compose.ExtendedTheme
 import com.huanchengfly.tieba.post.ui.common.theme.compose.OrangeA700
@@ -55,6 +56,7 @@ import com.huanchengfly.tieba.post.ui.common.theme.compose.White
 import com.huanchengfly.tieba.post.ui.common.theme.compose.Yellow
 import com.huanchengfly.tieba.post.ui.page.LocalNavigator
 import com.huanchengfly.tieba.post.ui.page.destinations.HotTopicListPageDestination
+import com.huanchengfly.tieba.post.ui.page.main.MainUiEvent
 import com.huanchengfly.tieba.post.ui.widgets.compose.LazyLoad
 import com.huanchengfly.tieba.post.ui.widgets.compose.NetworkImage
 import com.huanchengfly.tieba.post.ui.widgets.compose.ProvideContentColor
@@ -64,17 +66,22 @@ import com.huanchengfly.tieba.post.ui.widgets.compose.items
 import com.huanchengfly.tieba.post.ui.widgets.compose.itemsIndexed
 import com.huanchengfly.tieba.post.utils.StringUtil.getShortNumString
 import com.ramcosta.composedestinations.annotation.Destination
+import kotlinx.coroutines.flow.Flow
 
 @OptIn(ExperimentalFoundationApi::class, ExperimentalMaterialApi::class)
 @Destination
 @Composable
 fun HotPage(
+    eventFlow: Flow<MainUiEvent>,
     viewModel: HotViewModel = pageViewModel()
 ) {
     LazyLoad(loaded = viewModel.initialized) {
         viewModel.send(HotUiIntent.Load)
         viewModel.initialized = true
     }
+    eventFlow.onEvent<MainUiEvent.Refresh> {
+        viewModel.send(HotUiIntent.Load)
+    }
     val navigator = LocalNavigator.current
     val isLoading by viewModel.uiState.collectPartialAsState(
         prop1 = HotUiState::isRefreshing,

app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/explore/personalized/PersonalizedPage.kt

@@ -53,20 +53,22 @@ import com.huanchengfly.tieba.post.api.models.protos.ThreadInfo
 import com.huanchengfly.tieba.post.api.models.protos.personalized.DislikeReason
 import com.huanchengfly.tieba.post.api.models.protos.personalized.ThreadPersonalized
 import com.huanchengfly.tieba.post.arch.collectPartialAsState
+import com.huanchengfly.tieba.post.arch.onEvent
 import com.huanchengfly.tieba.post.arch.pageViewModel
 import com.huanchengfly.tieba.post.arch.wrapImmutable
 import com.huanchengfly.tieba.post.ui.common.theme.compose.ExtendedTheme
+import com.huanchengfly.tieba.post.ui.page.main.MainUiEvent
 import com.huanchengfly.tieba.post.ui.widgets.compose.FeedCard
 import com.huanchengfly.tieba.post.ui.widgets.compose.LazyLoad
 import com.huanchengfly.tieba.post.ui.widgets.compose.LoadMoreLayout
 import com.huanchengfly.tieba.post.ui.widgets.compose.VerticalDivider
 import kotlinx.coroutines.delay
-import kotlinx.coroutines.flow.filterIsInstance
-import kotlinx.coroutines.launch
+import kotlinx.coroutines.flow.Flow
 
 @OptIn(ExperimentalFoundationApi::class, ExperimentalMaterialApi::class)
 @Composable
 fun PersonalizedPage(
+    eventFlow: Flow<MainUiEvent>,
     viewModel: PersonalizedViewModel = pageViewModel()
 ) {
     LazyLoad(loaded = viewModel.initialized) {
@@ -113,16 +115,15 @@ fun PersonalizedPage(
     var showRefreshTip by remember {
         mutableStateOf(false)
     }
-    LaunchedEffect(Unit) {
-        launch {
-            viewModel.uiEventFlow
-                .filterIsInstance<PersonalizedUiEvent.RefreshSuccess>()
-                .collect {
-                    refreshCount = it.count
-                    showRefreshTip = true
-                }
-        }
+
+    eventFlow.onEvent<MainUiEvent.Refresh> {
+        viewModel.send(PersonalizedUiIntent.Refresh)
     }
+    viewModel.onEvent<PersonalizedUiEvent.RefreshSuccess> {
+        refreshCount = it.count
+        showRefreshTip = true
+    }
+
     if (showRefreshTip) {
         LaunchedEffect(Unit) {
             delay(2000)

app/src/main/java/com/huanchengfly/tieba/post/ui/page/main/home/HomePage.kt

@@ -70,11 +70,13 @@ import com.huanchengfly.tieba.post.R
 import com.huanchengfly.tieba.post.activities.LoginActivity
 import com.huanchengfly.tieba.post.activities.NewSearchActivity
 import com.huanchengfly.tieba.post.arch.collectPartialAsState
+import com.huanchengfly.tieba.post.arch.onEvent
 import com.huanchengfly.tieba.post.arch.pageViewModel
 import com.huanchengfly.tieba.post.goToActivity
 import com.huanchengfly.tieba.post.ui.common.theme.compose.ExtendedTheme
 import com.huanchengfly.tieba.post.ui.page.LocalNavigator
 import com.huanchengfly.tieba.post.ui.page.destinations.ForumPageDestination
+import com.huanchengfly.tieba.post.ui.page.main.MainUiEvent
 import com.huanchengfly.tieba.post.ui.widgets.Chip
 import com.huanchengfly.tieba.post.ui.widgets.compose.ActionItem
 import com.huanchengfly.tieba.post.ui.widgets.compose.Avatar
@@ -93,6 +95,7 @@ import com.huanchengfly.tieba.post.utils.AccountUtil.LocalAccount
 import com.huanchengfly.tieba.post.utils.ImageUtil
 import com.huanchengfly.tieba.post.utils.TiebaUtil
 import com.huanchengfly.tieba.post.utils.appPreferences
+import kotlinx.coroutines.flow.Flow
 
 private fun getGridCells(context: Context, listSingle: Boolean = context.appPreferences.listSingle): GridCells {
     return if (listSingle) {
@@ -370,6 +373,7 @@ private fun ForumItem(
 @OptIn(ExperimentalMaterialApi::class)
 @Composable
 fun HomePage(
+    eventFlow: Flow<MainUiEvent>,
     viewModel: HomeViewModel = pageViewModel<HomeUiIntent, HomeViewModel>(
         listOf(
             HomeUiIntent.Refresh
@@ -400,6 +404,10 @@ fun HomePage(
     var listSingle by remember { mutableStateOf(context.appPreferences.listSingle) }
     val gridCells by remember { derivedStateOf { getGridCells(context, listSingle) } }
 
+    eventFlow.onEvent<MainUiEvent.Refresh> {
+        viewModel.send(HomeUiIntent.Refresh)
+    }
+
     Scaffold(
         backgroundColor = Color.Transparent,
         topBar = {