Merge branch 'development'

app/src/main/java/ua/acclorite/book_story/presentation/components/AnimatedTopAppBar.kt

@@ -1,16 +1,17 @@
 package ua.acclorite.book_story.presentation.components
 
-import androidx.compose.animation.animateColorAsState
 import androidx.compose.animation.core.Spring
+import androidx.compose.animation.core.animateFloatAsState
 import androidx.compose.animation.core.spring
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ColumnScope
 import androidx.compose.foundation.layout.RowScope
 import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.fillMaxWidth
-import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.statusBars
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
@@ -18,23 +19,24 @@ import androidx.compose.material3.TopAppBar
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.material3.TopAppBarScrollBehavior
 import androidx.compose.runtime.Composable
-import androidx.compose.runtime.derivedStateOf
-import androidx.compose.runtime.getValue
-import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
-import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.graphics.lerp
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.unit.dp
 import ua.acclorite.book_story.R
 
 /**
- * Animated top app bar. Has up to 3 different top bars inside it. Follow [TopAppBar] for more info.
+ * Animated top app bar.
+ * Has up to 3 different top bars inside it. Follow [TopAppBar] for more info.
  *
+ * @param containerColor Container color of the TopBar.
+ * @param scrolledContainerColor Scrolled container color of the TopBar.
+ * @param scrollBehavior [TopAppBarScrollBehavior].
  * @param isTopBarScrolled Whether isScrolled state should be forced or not.
  * @param content1Visibility Whether first top app bar should be shown.
  * @param content2Visibility Whether second top app bar should be shown.
  * @param content3Visibility Whether third top app bar should be shown.
+ * @param customContent Custom content below [TopAppBar].
  */
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -58,42 +60,28 @@ fun AnimatedTopAppBar(
     content3Visibility: Boolean? = null,
     content3NavigationIcon: @Composable () -> Unit = {},
     content3Title: @Composable () -> Unit = {},
-    content3Actions: @Composable RowScope.() -> Unit = {}
+    content3Actions: @Composable RowScope.() -> Unit = {},
+
+    customContent: @Composable ColumnScope.() -> Unit = {}
 ) {
-    Box(modifier = Modifier.fillMaxWidth()) {
+    val animatedContainerColor = lerp(
-        val density = LocalDensity.current
+        containerColor,
-        val statusBarPadding = with(density) {
+        scrolledContainerColor,
-            WindowInsets.statusBars.getTop(density).toDp()
+        animateFloatAsState(
-        }
+            if (isTopBarScrolled == true) 1f else 0f,
-
+            animationSpec = spring(
-        if (containerColor != Color.Transparent) {
+                stiffness = Spring.StiffnessMediumLow
-            Box(
+            ),
-                modifier = Modifier
-                    .fillMaxWidth()
-                    .height(64.dp + statusBarPadding)
-                    .background(
-                        if (isTopBarScrolled == true) scrolledContainerColor
-                        else containerColor
-                    )
-            )
-        }
-
-        val scrollableContainerColor by remember(isTopBarScrolled) {
-            derivedStateOf {
-                if (isTopBarScrolled == true) {
-                    scrolledContainerColor
-                } else {
-                    containerColor
-                }
-            }
-        }
-
-        val animatedContainerColor by animateColorAsState(
-            targetValue = scrollableContainerColor,
-            animationSpec = spring(stiffness = Spring.StiffnessMediumLow),
             label = stringResource(id = R.string.top_app_bar_anim_content_desc)
+        ).value
     )
 
+    Column(
+        Modifier
+            .fillMaxWidth()
+            .background(animatedContainerColor)
+    ) {
+        Box(modifier = Modifier.fillMaxWidth()) {
             CustomAnimatedVisibility(
                 visible = content1Visibility ?: true,
                 enter = fadeIn(spring(stiffness = Spring.StiffnessMediumLow)),
@@ -107,7 +95,8 @@ fun AnimatedTopAppBar(
                     scrollBehavior = scrollBehavior,
                     modifier = Modifier.fillMaxWidth(),
                     colors = TopAppBarDefaults.topAppBarColors(
-                    containerColor = animatedContainerColor,
+                        containerColor = if (isTopBarScrolled != null) Color.Transparent
+                        else containerColor,
                         scrolledContainerColor = scrolledContainerColor
                     )
                 )
@@ -127,7 +116,8 @@ fun AnimatedTopAppBar(
                         scrollBehavior = scrollBehavior,
                         modifier = Modifier.fillMaxWidth(),
                         colors = TopAppBarDefaults.topAppBarColors(
-                        containerColor = animatedContainerColor,
+                            containerColor = if (isTopBarScrolled != null) Color.Transparent
+                            else containerColor,
                             scrolledContainerColor = scrolledContainerColor
                         )
                     )
@@ -148,13 +138,16 @@ fun AnimatedTopAppBar(
                         scrollBehavior = scrollBehavior,
                         modifier = Modifier.fillMaxWidth(),
                         colors = TopAppBarDefaults.topAppBarColors(
-                        containerColor = animatedContainerColor,
+                            containerColor = if (isTopBarScrolled != null) Color.Transparent
+                            else containerColor,
                             scrolledContainerColor = scrolledContainerColor
                         )
                     )
                 }
             }
         }
+        customContent()
+    }
 }
 
 

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/BookInfoScreen.kt

@@ -27,7 +27,6 @@ import androidx.compose.material.icons.filled.PlayArrow
 import androidx.compose.material.pullrefresh.PullRefreshIndicator
 import androidx.compose.material.pullrefresh.pullRefresh
 import androidx.compose.material.pullrefresh.rememberPullRefreshState
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.FloatingActionButton
 import androidx.compose.material3.FloatingActionButtonDefaults
 import androidx.compose.material3.Icon
@@ -35,7 +34,6 @@ import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.DisposableEffect
 import androidx.compose.runtime.LaunchedEffect
@@ -44,7 +42,6 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.input.nestedscroll.nestedScroll
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
@@ -109,7 +106,7 @@ fun BookInfoScreenRoot(screen: Screen.BookInfo) {
     )
 }
 
-@OptIn(ExperimentalMaterial3Api::class, ExperimentalMaterialApi::class)
+@OptIn(ExperimentalMaterialApi::class)
 @Composable
 private fun BookInfoScreen(
     state: State<BookInfoState>,
@@ -120,7 +117,6 @@ private fun BookInfoScreen(
     onHistoryEvent: (HistoryEvent) -> Unit
 ) {
     val context = LocalContext.current
-    val scrollBehavior = TopAppBarDefaults.pinnedScrollBehavior()
     val listState = rememberLazyListState()
     val snackbarState = remember { SnackbarHostState() }
     val refreshState = rememberPullRefreshState(
@@ -179,8 +175,7 @@ private fun BookInfoScreen(
             .fillMaxSize()
             .imePadding()
             .windowInsetsPadding(WindowInsets.navigationBars)
-            .pullRefresh(refreshState)
+            .pullRefresh(refreshState),
-            .nestedScroll(scrollBehavior.nestedScrollConnection),
         containerColor = MaterialTheme.colorScheme.surface,
         topBar = {
             BookInfoTopBar(
@@ -189,7 +184,6 @@ private fun BookInfoScreen(
                 onLibraryEvent = onLibraryEvent,
                 onHistoryEvent = onHistoryEvent,
                 onNavigate = onNavigate,
-                scrollBehavior = scrollBehavior,
                 listState = listState,
                 snackbarState = snackbarState
             )

app/src/main/java/ua/acclorite/book_story/presentation/screens/book_info/components/BookInfoTopBar.kt

@@ -12,13 +12,11 @@ import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.SnackbarHostState
 import androidx.compose.material3.Text
-import androidx.compose.material3.TopAppBarScrollBehavior
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.State
 import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
-import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.text.style.TextOverflow
 import ua.acclorite.book_story.R
@@ -42,7 +40,6 @@ import ua.acclorite.book_story.presentation.ui.Transitions
  * @param onLibraryEvent [LibraryEvent] callback.
  * @param onHistoryEvent [HistoryEvent] callback.
  * @param onNavigate Navigator callback.
- * @param scrollBehavior [TopAppBarScrollBehavior].
  * @param listState [LazyListState].
  * @param snackbarState [SnackbarHostState].
  */
@@ -54,7 +51,6 @@ fun BookInfoTopBar(
     onLibraryEvent: (LibraryEvent) -> Unit,
     onHistoryEvent: (HistoryEvent) -> Unit,
     onNavigate: OnNavigate,
-    scrollBehavior: TopAppBarScrollBehavior,
     listState: LazyListState,
     snackbarState: SnackbarHostState
 ) {
@@ -62,9 +58,9 @@ fun BookInfoTopBar(
     val firstVisibleItemIndex by remember { derivedStateOf { listState.firstVisibleItemIndex } }
 
     AnimatedTopAppBar(
-        containerColor = Color.Transparent,
+        containerColor = MaterialTheme.colorScheme.surface.copy(0f),
-        scrollBehavior = scrollBehavior,
+        scrollBehavior = null,
-        isTopBarScrolled = null,
+        isTopBarScrolled = listState.canScrollBackward,
 
         content1NavigationIcon = {
             if (

app/src/main/java/ua/acclorite/book_story/presentation/screens/library/components/LibraryTabRow.kt

@@ -33,12 +33,14 @@ import ua.acclorite.book_story.presentation.screens.library.data.LibraryEvent
  * Tab row, either scrollable or static, depends on screen width.
  *
  * @param onEvent Event used to Scroll to Page.
+ * @param itemCountBackgroundColor Item count background color.
  * @param books The list of all books.
  * @param pagerState [PagerState].
  */
 @Composable
 fun LibraryTabRow(
     onEvent: (LibraryEvent) -> Unit,
+    itemCountBackgroundColor: Color,
     books: List<CategorizedBooks>,
     pagerState: PagerState
 ) {
@@ -113,7 +115,7 @@ fun LibraryTabRow(
                                 text = tabItem.second.toString(),
                                 modifier = Modifier
                                     .background(
-                                        MaterialTheme.colorScheme.surfaceContainer,
+                                        itemCountBackgroundColor,
                                         MaterialTheme.shapes.medium
                                     )
                                     .padding(horizontal = 8.dp, vertical = 4.dp),

app/src/main/java/ua/acclorite/book_story/presentation/screens/library/components/LibraryTopBar.kt

@@ -1,10 +1,11 @@
 package ua.acclorite.book_story.presentation.screens.library.components
 
+import androidx.compose.animation.animateColorAsState
+import androidx.compose.animation.core.Spring
+import androidx.compose.animation.core.spring
 import androidx.compose.foundation.background
-import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Row
 import androidx.compose.foundation.layout.Spacer
-import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.pager.PagerState
@@ -55,7 +56,6 @@ fun LibraryTopBar(
 ) {
     val focusRequester = remember { FocusRequester() }
 
-    Column(Modifier.fillMaxWidth()) {
     AnimatedTopAppBar(
         scrollBehavior = null,
         isTopBarScrolled = state.value.hasSelectedItems,
@@ -168,12 +168,19 @@ fun LibraryTopBar(
         },
         content3Actions = {
             MoreDropDown()
-            }
+        },
-        )
+        customContent = {
             LibraryTabRow(
                 onEvent = onEvent,
                 books = state.value.categorizedBooks,
+                itemCountBackgroundColor = animateColorAsState(
+                    if (state.value.hasSelectedItems) MaterialTheme.colorScheme.surfaceContainerHighest
+                    else MaterialTheme.colorScheme.surfaceContainer,
+                    animationSpec = spring(stiffness = Spring.StiffnessMediumLow),
+                    label = stringResource(id = R.string.top_app_bar_anim_content_desc)
+                ).value,
                 pagerState = pagerState
             )
         }
+    )
 }