0.9.7 - Help Screen + Pure Dark (Oled) theme + Bug fixes

app/build.gradle.kts

@@ -15,7 +15,7 @@ android {
         minSdk = 26
         targetSdk = 34
         versionCode = 1
-        versionName = "0.9.6"
+        versionName = "0.9.7"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {
@@ -66,7 +66,7 @@ dependencies {
     implementation("androidx.activity:activity-compose:1.8.2")
 
     // Compose BOM libraries
-    implementation(platform("androidx.compose:compose-bom:2024.03.00"))
+    implementation(platform("androidx.compose:compose-bom:2024.04.00"))
     implementation("androidx.compose.foundation:foundation")
     implementation("androidx.compose.animation:animation")
     implementation("androidx.compose.animation:animation-core")
@@ -90,7 +90,7 @@ dependencies {
     testImplementation("androidx.test.ext:truth:1.5.0")
     testImplementation("com.squareup.okhttp3:mockwebserver:latest.release")
     testImplementation("io.mockk:mockk:latest.release")
-    debugImplementation("androidx.compose.ui:ui-test-manifest:1.6.4")
+    debugImplementation("androidx.compose.ui:ui-test-manifest:1.6.5")
 
     // Instrumentation tests
     androidTestImplementation("com.google.dagger:hilt-android-testing:latest.release")
@@ -109,7 +109,7 @@ dependencies {
     implementation("com.google.accompanist:accompanist-swiperefresh:0.24.2-alpha")
 
     // Dagger - Hilt
-    implementation("com.google.dagger:hilt-android:2.51")
+    implementation("com.google.dagger:hilt-android:2.51.1")
     ksp("com.google.dagger:hilt-android-compiler:2.51")
     implementation("com.google.dagger:hilt-compiler:latest.release")
     ksp("androidx.hilt:hilt-compiler:latest.release")

app/src/main/AndroidManifest.xml

@@ -34,6 +34,7 @@
         android:label="@string/app_name"
         android:supportsRtl="true"
         android:theme="@style/Theme.Start.Splash"
+        android:requestLegacyExternalStorage="true"
         android:enableOnBackInvokedCallback="true"
         tools:targetApi="tiramisu"
         tools:ignore="DataExtractionRules">

app/src/main/java/ua/acclorite/book_story/Activity.kt

@@ -9,19 +9,25 @@ import androidx.activity.viewModels
 import androidx.appcompat.app.AppCompatActivity
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.calculateEndPadding
 import androidx.compose.foundation.layout.calculateStartPadding
 import androidx.compose.foundation.layout.fillMaxSize
+import androidx.compose.foundation.layout.ime
 import androidx.compose.foundation.layout.padding
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.windowsizeclass.ExperimentalMaterial3WindowSizeClassApi
 import androidx.compose.material3.windowsizeclass.WindowWidthSizeClass
 import androidx.compose.material3.windowsizeclass.calculateWindowSizeClass
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalDensity
+import androidx.compose.ui.platform.LocalFocusManager
 import androidx.compose.ui.platform.LocalLayoutDirection
 import androidx.compose.ui.unit.LayoutDirection
 import androidx.compose.ui.unit.dp
@@ -49,9 +55,10 @@ import ua.acclorite.book_story.presentation.screens.settings.SettingsScreen
 import ua.acclorite.book_story.presentation.screens.settings.nested.appearance.AppearanceSettings
 import ua.acclorite.book_story.presentation.screens.settings.nested.general.GeneralSettings
 import ua.acclorite.book_story.presentation.screens.settings.nested.reader.ReaderSettings
-import ua.acclorite.book_story.presentation.ui.BooksHistoryResurrectionTheme
+import ua.acclorite.book_story.presentation.ui.BookStoryTheme
 import ua.acclorite.book_story.presentation.ui.Transitions
 import ua.acclorite.book_story.presentation.ui.isDark
+import ua.acclorite.book_story.presentation.ui.isPureDark
 import java.lang.reflect.Field
 
 
@@ -109,10 +116,25 @@ class Activity : AppCompatActivity() {
                 }
             }
 
+            val density = LocalDensity.current
+            val imeInsets = WindowInsets.ime
+            val focusManager = LocalFocusManager.current
+            val isKeyboardVisible by remember {
+                derivedStateOf {
+                    imeInsets.getBottom(density) > 0
+                }
+            }
+            LaunchedEffect(isKeyboardVisible) {
+                if (!isKeyboardVisible) {
+                    focusManager.clearFocus()
+                }
+            }
+
             if (isLoaded) {
-                BooksHistoryResurrectionTheme(
+                BookStoryTheme(
                     theme = state.theme!!,
                     isDark = state.darkTheme!!.isDark(),
+                    isPureDark = state.pureDark!!.isPureDark(this),
                     themeContrast = state.themeContrast!!
                 ) {
                     NavigationHost(startScreen = Screen.LIBRARY) {

app/src/main/java/ua/acclorite/book_story/data/local/data_store/DataStore.kt

@@ -5,5 +5,7 @@ import kotlinx.coroutines.flow.Flow
 
 interface DataStore {
     suspend fun <T> getData(key: Preferences.Key<T>, defaultValue: T): Flow<T>
+    suspend fun <T> getNullableData(key: Preferences.Key<T>): T?
+    suspend fun getAllData(): Set<Preferences.Key<*>>?
     suspend fun <T> putData(key: Preferences.Key<T>, value: T)
 }

app/src/main/java/ua/acclorite/book_story/data/local/data_store/DataStoreImpl.kt

@@ -8,6 +8,7 @@ import androidx.datastore.preferences.core.emptyPreferences
 import androidx.datastore.preferences.preferencesDataStore
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.catch
+import kotlinx.coroutines.flow.firstOrNull
 import kotlinx.coroutines.flow.map
 import java.io.IOException
 import javax.inject.Inject
@@ -29,6 +30,26 @@ class DataStoreImpl @Inject constructor(context: Application) : DataStore {
             result
         }
 
+    override suspend fun <T> getNullableData(key: Preferences.Key<T>): T? =
+        dataStore.data.catch { exception ->
+            if (exception is IOException) {
+                emit(emptyPreferences())
+            } else {
+                throw exception
+            }
+        }.map { preferences ->
+            val result = preferences[key]
+            result
+        }.firstOrNull()
+
+    override suspend fun getAllData(): Set<Preferences.Key<*>>? {
+        val keys = dataStore.data
+            .map {
+                it.asMap().keys
+            }
+        return keys.firstOrNull()
+    }
+
     override suspend fun <T> putData(key: Preferences.Key<T>, value: T) {
         dataStore.edit { preferences ->
             preferences[key] = value

app/src/main/java/ua/acclorite/book_story/data/repository/BookRepositoryImpl.kt

@@ -6,9 +6,14 @@ import android.net.Uri
 import android.os.Environment
 import android.util.Log
 import androidx.datastore.preferences.core.Preferences
+import kotlinx.coroutines.CompletableDeferred
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.async
+import kotlinx.coroutines.awaitAll
 import kotlinx.coroutines.flow.Flow
 import kotlinx.coroutines.flow.flow
+import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 import ua.acclorite.book_story.R
 import ua.acclorite.book_story.data.local.data_store.DataStore
@@ -26,7 +31,7 @@ import ua.acclorite.book_story.domain.util.Constants
 import ua.acclorite.book_story.domain.util.CoverImage
 import ua.acclorite.book_story.domain.util.Resource
 import ua.acclorite.book_story.domain.util.UIText
-import ua.acclorite.book_story.presentation.data.calculateFamiliarity
+import ua.acclorite.book_story.presentation.data.MainState
 import java.io.File
 import java.io.FileOutputStream
 import java.util.UUID
@@ -380,6 +385,32 @@ class BookRepositoryImpl @Inject constructor(
         dataStore.putData(key, value)
     }
 
+    override suspend fun getAllSettings(scope: CoroutineScope): MainState {
+        val result = CompletableDeferred<MainState>()
+
+        scope.launch {
+            val keys = dataStore.getAllData()
+            val data = mutableMapOf<String, Any>()
+
+            val jobs = keys?.map { key ->
+                async {
+                    val nullableData = dataStore.getNullableData(key)
+
+                    if (nullableData == null) {
+                        data.remove(key.name)
+                    } else {
+                        data[key.name] = nullableData
+                    }
+                }
+            }
+            jobs?.awaitAll()
+
+            result.complete(MainState.initialize(data))
+        }
+
+        return result.await()
+    }
+
     override suspend fun getFilesFromDevice(query: String): Flow<Resource<List<File>>> {
         fun getAllFilesInDirectory(directory: File): List<File> {
             val filesList = mutableListOf<File>()
@@ -437,7 +468,7 @@ class BookRepositoryImpl @Inject constructor(
                     return@filter false
                 }
 
-                val isQuery = if (query.isEmpty()) true else file.name.lowercase()
+                val isQuery = if (query.isEmpty()) true else file.name.trim().lowercase()
                     .contains(query.trim().lowercase())
 
                 if (!isQuery) {
@@ -451,18 +482,9 @@ class BookRepositoryImpl @Inject constructor(
                 )
             }
 
-            filteredFiles = if (query.trim().isNotEmpty()) {
+            filteredFiles = filteredFiles.sortedByDescending {
-                filteredFiles.sortedByDescending {
-                    calculateFamiliarity(
-                        query,
-                        it.name.lowercase().trim()
-                    )
-                }.toMutableList()
-            } else {
-                filteredFiles.sortedByDescending {
                 it.lastModified()
             }.toMutableList()
-            }
 
             emit(
                 Resource.Success(

app/src/main/java/ua/acclorite/book_story/domain/repository/BookRepository.kt

@@ -1,6 +1,7 @@
 package ua.acclorite.book_story.domain.repository
 
 import androidx.datastore.preferences.core.Preferences
+import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.flow.Flow
 import ua.acclorite.book_story.domain.model.Book
 import ua.acclorite.book_story.domain.model.History
@@ -8,6 +9,7 @@ import ua.acclorite.book_story.domain.model.NullableBook
 import ua.acclorite.book_story.domain.model.StringWithId
 import ua.acclorite.book_story.domain.util.CoverImage
 import ua.acclorite.book_story.domain.util.Resource
+import ua.acclorite.book_story.presentation.data.MainState
 import java.io.File
 
 interface BookRepository {
@@ -55,6 +57,8 @@ interface BookRepository {
         value: T
     )
 
+    suspend fun getAllSettings(scope: CoroutineScope): MainState
+
     suspend fun getFilesFromDevice(query: String = ""): Flow<Resource<List<File>>>
 
     suspend fun getBooksFromFiles(files: List<File>): List<NullableBook>

app/src/main/java/ua/acclorite/book_story/domain/use_case/GetAllSettings.kt

@@ -0,0 +1,15 @@
+package ua.acclorite.book_story.domain.use_case
+
+import kotlinx.coroutines.CoroutineScope
+import ua.acclorite.book_story.domain.repository.BookRepository
+import ua.acclorite.book_story.presentation.data.MainState
+import javax.inject.Inject
+
+class GetAllSettings @Inject constructor(
+    private val repository: BookRepository
+) {
+
+    suspend fun execute(scope: CoroutineScope): MainState {
+        return repository.getAllSettings(scope)
+    }
+}

app/src/main/java/ua/acclorite/book_story/domain/util/DataStoreConstants.kt

@@ -9,6 +9,7 @@ object DataStoreConstants {
     val LANGUAGE = stringPreferencesKey("language")
     val THEME = stringPreferencesKey("theme")
     val DARK_THEME = stringPreferencesKey("dark_theme")
+    val PURE_DARK = stringPreferencesKey("pure_dark")
     val THEME_CONTRAST = stringPreferencesKey("theme_contrast")
     val SHOW_START_SCREEN = booleanPreferencesKey("guide")
     val BACKGROUND_COLOR = longPreferencesKey("background_color")

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

@@ -164,7 +164,3 @@ fun AnimatedTopAppBar(
 
 
 
-
-
-
-

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

@@ -0,0 +1,55 @@
+package ua.acclorite.book_story.presentation.components
+
+import androidx.compose.foundation.lazy.LazyListState
+import androidx.compose.foundation.lazy.rememberLazyListState
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.TopAppBarDefaults
+import androidx.compose.material3.TopAppBarScrollBehavior
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.runtime.snapshotFlow
+import kotlinx.coroutines.flow.collectLatest
+
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun TopAppBarDefaults.collapsibleScrollBehaviorWithLazyListState(
+
+): Pair<TopAppBarScrollBehavior, LazyListState> {
+    val listState = rememberLazyListState()
+
+    var canScroll by remember { mutableStateOf(false) }
+    val scrollBehavior = exitUntilCollapsedScrollBehavior(
+        canScroll = {
+            listState.canScrollForward || canScroll
+        }
+    )
+
+    LaunchedEffect(scrollBehavior.state) {
+        snapshotFlow {
+            scrollBehavior.state.collapsedFraction
+        }.collectLatest { fraction ->
+            canScroll = fraction > 0.01f
+        }
+    }
+
+    return scrollBehavior to listState
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

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

@@ -10,6 +10,7 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.focus.focusProperties
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.res.stringResource
@@ -31,6 +32,9 @@ fun CustomIconButton(
     CustomTooltip(text = stringResource(id = contentDescription)) {
         IconButton(
             enabled = enabled && !isClicked,
+            modifier = Modifier.focusProperties {
+                canFocus = false
+            },
             onClick = {
                 if (disableOnClick) {
                     isClicked = true

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

@@ -7,13 +7,15 @@ import androidx.compose.material3.TooltipBox
 import androidx.compose.material3.TooltipDefaults
 import androidx.compose.material3.rememberTooltipState
 import androidx.compose.runtime.Composable
+import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun CustomTooltip(text: String, content: @Composable () -> Unit) {
+fun CustomTooltip(text: String, padding: Dp = 14.dp, content: @Composable () -> Unit) {
     TooltipBox(
-        positionProvider = TooltipDefaults.rememberPlainTooltipPositionProvider(12.dp),
+        positionProvider = TooltipDefaults.rememberPlainTooltipPositionProvider(padding),
+        focusable = false,
         tooltip = {
             PlainTooltip {
                 Text(text = text)

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

@@ -34,32 +34,38 @@ fun BottomNavigationBar(
     }
 
     NavigationBar {
+
         BottomNavigationBarItem(
             item = NavigationItem(
                 stringResource(id = R.string.library_screen),
                 selectedIcon = painterResource(id = R.drawable.library_screen_filled),
                 unselectedIcon = painterResource(id = R.drawable.library_screen_outlined)
             ),
+            tooltipText = stringResource(id = R.string.library_content_desc),
             isSelected = currentScreen == Screen.LIBRARY
         ) {
             navigator.navigate(Screen.LIBRARY, false)
         }
+
         BottomNavigationBarItem(
             item = NavigationItem(
                 stringResource(id = R.string.history_screen),
                 selectedIcon = painterResource(id = R.drawable.history_screen_filled),
                 unselectedIcon = painterResource(id = R.drawable.history_screen_outlined)
             ),
+            tooltipText = stringResource(id = R.string.history_content_desc),
             isSelected = currentScreen == Screen.HISTORY
         ) {
             navigator.navigate(Screen.HISTORY, false)
         }
+
         BottomNavigationBarItem(
             item = NavigationItem(
                 stringResource(id = R.string.browse_screen),
                 selectedIcon = painterResource(id = R.drawable.browse_screen_filled),
                 unselectedIcon = painterResource(id = R.drawable.browse_screen_outlined)
             ),
+            tooltipText = stringResource(id = R.string.browse_content_desc),
             isSelected = currentScreen == Screen.BROWSE
         ) {
             navigator.navigate(Screen.BROWSE, false)

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

@@ -11,6 +11,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import ua.acclorite.book_story.domain.model.NavigationItem
+import ua.acclorite.book_story.presentation.components.CustomTooltip
 
 /**
  * Bottom Navigation Bar Item, uses default [NavigationBarItem].
@@ -19,6 +20,7 @@ import ua.acclorite.book_story.domain.model.NavigationItem
 fun RowScope.BottomNavigationBarItem(
     modifier: Modifier = Modifier,
     item: NavigationItem,
+    tooltipText: String,
     isSelected: Boolean,
     onClick: () -> Unit
 ) {
@@ -27,22 +29,33 @@ fun RowScope.BottomNavigationBarItem(
         else item.unselectedIcon
     }
 
+
     NavigationBarItem(
         label = {
+            CustomTooltip(
+                text = tooltipText,
+                padding = 64.dp
+            ) {
                 Text(
                     text = item.title,
                     maxLines = 1,
                     overflow = TextOverflow.Ellipsis
                 )
+            }
         },
         selected = isSelected,
         onClick = { onClick() },
         icon = {
+            CustomTooltip(
+                text = tooltipText,
+                padding = 32.dp
+            ) {
                 Icon(
                     painter = icon,
                     contentDescription = null,
                     modifier = Modifier.size(24.dp)
                 )
+            }
         },
         modifier = modifier
     )

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

@@ -76,6 +76,7 @@ fun BoxScope.CustomNavigationRail(
                     selectedIcon = painterResource(id = R.drawable.library_screen_filled),
                     unselectedIcon = painterResource(id = R.drawable.library_screen_outlined)
                 ),
+                tooltipText = stringResource(id = R.string.library_content_desc),
                 isSelected = currentScreen == Screen.LIBRARY
             ) {
                 navigator.navigate(Screen.LIBRARY, false)
@@ -86,6 +87,7 @@ fun BoxScope.CustomNavigationRail(
                     selectedIcon = painterResource(id = R.drawable.history_screen_filled),
                     unselectedIcon = painterResource(id = R.drawable.history_screen_outlined)
                 ),
+                tooltipText = stringResource(id = R.string.history_content_desc),
                 isSelected = currentScreen == Screen.HISTORY
             ) {
                 navigator.navigate(Screen.HISTORY, false)
@@ -96,6 +98,7 @@ fun BoxScope.CustomNavigationRail(
                     selectedIcon = painterResource(id = R.drawable.browse_screen_filled),
                     unselectedIcon = painterResource(id = R.drawable.browse_screen_outlined)
                 ),
+                tooltipText = stringResource(id = R.string.browse_content_desc),
                 isSelected = currentScreen == Screen.BROWSE
             ) {
                 navigator.navigate(Screen.BROWSE, false)

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

@@ -10,6 +10,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.text.style.TextOverflow
 import androidx.compose.ui.unit.dp
 import ua.acclorite.book_story.domain.model.NavigationItem
+import ua.acclorite.book_story.presentation.components.CustomTooltip
 
 /**
  * Custom Navigation Rail item.
@@ -18,6 +19,7 @@ import ua.acclorite.book_story.domain.model.NavigationItem
 fun CustomNavigationRailItem(
     modifier: Modifier = Modifier,
     item: NavigationItem,
+    tooltipText: String,
     isSelected: Boolean,
     onClick: () -> Unit
 ) {
@@ -28,20 +30,30 @@ fun CustomNavigationRailItem(
 
     NavigationRailItem(
         label = {
+            CustomTooltip(
+                text = tooltipText,
+                padding = 48.dp
+            ) {
                 Text(
                     text = item.title,
                     maxLines = 1,
                     overflow = TextOverflow.Ellipsis
                 )
+            }
         },
         selected = isSelected,
         onClick = { onClick() },
         icon = {
+            CustomTooltip(
+                text = tooltipText,
+                padding = 16.dp
+            ) {
                 Icon(
                     painter = icon,
                     contentDescription = null,
                     modifier = Modifier.size(24.dp)
                 )
+            }
         },
         modifier = modifier
     )

app/src/main/java/ua/acclorite/book_story/presentation/data/ArithmeticOperations.kt

@@ -10,9 +10,3 @@ fun String.removeTrailingZero(): String {
 
 fun Double.removeDigits(digits: Int) = "%.${digits}f".format(this).replace(",", ".")
 
-fun calculateFamiliarity(string: String, target: String): Int {
-    val targetCounts = target.lowercase().trim().groupingBy { it }.eachCount()
-    val familiarity = string.lowercase().trim().sumOf { targetCounts.getOrDefault(it, 0) }
-    return familiarity
-}
-

app/src/main/java/ua/acclorite/book_story/presentation/data/MainEvent.kt

@@ -4,6 +4,7 @@ sealed class MainEvent {
     data class OnChangeLanguage(val lang: String) : MainEvent()
     data class OnChangeTheme(val theme: String) : MainEvent()
     data class OnChangeDarkTheme(val darkTheme: String) : MainEvent()
+    data class OnChangePureDark(val pureDark: String) : MainEvent()
     data class OnChangeThemeContrast(val themeContrast: String) : MainEvent()
     data class OnChangeFontFamily(val fontFamily: String) : MainEvent()
     data class OnChangeFontStyle(val fontStyle: Boolean) : MainEvent()

app/src/main/java/ua/acclorite/book_story/presentation/data/MainState.kt

@@ -1,11 +1,21 @@
 package ua.acclorite.book_story.presentation.data
 
+import android.os.Build
 import android.os.Parcel
 import android.os.Parcelable
 import androidx.compose.runtime.Immutable
+import androidx.compose.ui.graphics.Color
+import ua.acclorite.book_story.domain.util.Constants
+import ua.acclorite.book_story.domain.util.DataStoreConstants
 import ua.acclorite.book_story.presentation.ui.DarkTheme
+import ua.acclorite.book_story.presentation.ui.PureDark
 import ua.acclorite.book_story.presentation.ui.Theme
 import ua.acclorite.book_story.presentation.ui.ThemeContrast
+import ua.acclorite.book_story.presentation.ui.toDarkTheme
+import ua.acclorite.book_story.presentation.ui.toPureDark
+import ua.acclorite.book_story.presentation.ui.toTheme
+import ua.acclorite.book_story.presentation.ui.toThemeContrast
+import java.util.Locale
 
 /**
  * Main State. All app's settings are here. Wrapped in SavedStateHandle, so it won't reset.
@@ -15,6 +25,7 @@ data class MainState(
     val language: String? = null,
     val theme: Theme? = null,
     val darkTheme: DarkTheme? = null,
+    val pureDark: PureDark? = null,
     val themeContrast: ThemeContrast? = null,
     val fontFamily: String? = null,
     val isItalic: Boolean? = null,
@@ -34,6 +45,8 @@ data class MainState(
         // String
         darkTheme = DarkTheme.valueOf(parcel.readString() ?: DarkTheme.FOLLOW_SYSTEM.name),
         // String
+        pureDark = PureDark.valueOf(parcel.readString() ?: PureDark.OFF.name),
+        // String
         themeContrast = ThemeContrast.valueOf(parcel.readString() ?: ThemeContrast.STANDARD.name),
         // String
         fontFamily = parcel.readString(),
@@ -64,6 +77,8 @@ data class MainState(
         parcel.writeString(theme?.name)
         // Dark Theme
         parcel.writeString(darkTheme?.name)
+        // Pure Dark
+        parcel.writeString(pureDark?.name)
         // Contrast Level
         parcel.writeString(themeContrast?.name)
         // Font Family
@@ -106,5 +121,79 @@ data class MainState(
         override fun newArray(size: Int): Array<MainState?> {
             return arrayOfNulls(size)
         }
+
+        /**
+         * Initializes [MainState] by given [Map].
+         */
+        fun initialize(data: Map<String, Any>): MainState {
+            DataStoreConstants.apply {
+
+                val language: String = data[LANGUAGE.name] as? String ?: if (
+                    Constants.LANGUAGES.any { Locale.getDefault().language.take(2) == it.first }
+                ) {
+                    Locale.getDefault().language.take(2)
+                } else {
+                    "en"
+                }
+
+                val theme: String = data[THEME.name] as? String ?: if (
+                    Build.VERSION.SDK_INT >= Build.VERSION_CODES.S
+                ) Theme.DYNAMIC.name else Theme.BLUE.name
+
+                val darkTheme: String = data[DARK_THEME.name] as? String
+                    ?: DarkTheme.FOLLOW_SYSTEM.name
+
+                val pureDark: String = data[PURE_DARK.name] as? String
+                    ?: PureDark.OFF.name
+
+                val themeContrast: String = data[THEME_CONTRAST.name] as? String
+                    ?: ThemeContrast.STANDARD.name
+
+                val showStartScreen: Boolean = data[SHOW_START_SCREEN.name] as? Boolean
+                    ?: true
+
+                val backgroundColor: Long = data[BACKGROUND_COLOR.name] as? Long
+                    ?: Color.DarkGray.value.toLong()
+
+                val fontColor: Long = data[FONT_COLOR.name] as? Long
+                    ?: Color.LightGray.value.toLong()
+
+                val fontFamily: String = data[FONT.name] as? String
+                    ?: Constants.FONTS[0].id
+
+                val isItalic: Boolean = data[IS_ITALIC.name] as? Boolean
+                    ?: false
+
+                val fontSize: Int = data[FONT_SIZE.name] as? Int
+                    ?: 16
+
+                val lineHeight: Int = data[LINE_HEIGHT.name] as? Int
+                    ?: 4
+
+                val paragraphHeight: Int = data[PARAGRAPH_HEIGHT.name] as? Int
+                    ?: 8
+
+                val paragraphIndentation: Boolean = data[PARAGRAPH_INDENTATION.name] as? Boolean
+                    ?: false
+
+
+                return MainState(
+                    language = language,
+                    theme = theme.toTheme(),
+                    darkTheme = darkTheme.toDarkTheme(),
+                    pureDark = pureDark.toPureDark(),
+                    themeContrast = themeContrast.toThemeContrast(),
+                    showStartScreen = showStartScreen,
+                    backgroundColor = backgroundColor,
+                    fontColor = fontColor,
+                    fontFamily = fontFamily,
+                    isItalic = isItalic,
+                    fontSize = fontSize,
+                    lineHeight = lineHeight,
+                    paragraphHeight = paragraphHeight,
+                    paragraphIndentation = paragraphIndentation
+                )
+            }
+        }
     }
 }

app/src/main/java/ua/acclorite/book_story/presentation/data/MainViewModel.kt

@@ -1,7 +1,5 @@
 package ua.acclorite.book_story.presentation.data
 
-import android.os.Build
-import androidx.compose.ui.graphics.Color
 import androidx.lifecycle.SavedStateHandle
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
@@ -9,23 +7,21 @@ import dagger.hilt.android.lifecycle.HiltViewModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.first
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import ua.acclorite.book_story.domain.use_case.ChangeLanguage
-import ua.acclorite.book_story.domain.use_case.GetDatastore
+import ua.acclorite.book_story.domain.use_case.GetAllSettings
 import ua.acclorite.book_story.domain.use_case.SetDatastore
 import ua.acclorite.book_story.domain.util.Constants
 import ua.acclorite.book_story.domain.util.DataStoreConstants
 import ua.acclorite.book_story.presentation.screens.library.data.LibraryViewModel
-import ua.acclorite.book_story.presentation.ui.DarkTheme
-import ua.acclorite.book_story.presentation.ui.Theme
-import ua.acclorite.book_story.presentation.ui.ThemeContrast
 import ua.acclorite.book_story.presentation.ui.toDarkTheme
+import ua.acclorite.book_story.presentation.ui.toPureDark
 import ua.acclorite.book_story.presentation.ui.toTheme
 import ua.acclorite.book_story.presentation.ui.toThemeContrast
-import java.util.Locale
 import javax.inject.Inject
 
 /**
@@ -35,14 +31,17 @@ import javax.inject.Inject
 class MainViewModel @Inject constructor(
     private val stateHandle: SavedStateHandle,
 
-    private val getDatastore: GetDatastore,
     private val setDatastore: SetDatastore,
     private val changeLanguage: ChangeLanguage,
+    private val getAllSettings: GetAllSettings
 ) : ViewModel() {
 
     private val _isReady = MutableStateFlow(false)
     val isReady = _isReady.asStateFlow()
 
+    private val isSettingsReady = MutableStateFlow(false)
+    private val isViewModelReady = MutableStateFlow(false)
+
     private val _state: MutableStateFlow<MainState> = MutableStateFlow(
         stateHandle[Constants.MAIN_STATE] ?: MainState()
     )
@@ -53,7 +52,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeLanguage -> {
                 viewModelScope.launch(Dispatchers.Main) {
                     changeLanguage.execute(event.lang)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             language = event.lang
                         )
@@ -64,7 +63,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeDarkTheme -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.DARK_THEME, event.darkTheme)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             darkTheme = event.darkTheme.toDarkTheme()
                         )
@@ -72,10 +71,21 @@ class MainViewModel @Inject constructor(
                 }
             }
 
+            is MainEvent.OnChangePureDark -> {
+                viewModelScope.launch(Dispatchers.IO) {
+                    setDatastore.execute(DataStoreConstants.PURE_DARK, event.pureDark)
+                    updateStateWithSavedHandle {
+                        it.copy(
+                            pureDark = event.pureDark.toPureDark()
+                        )
+                    }
+                }
+            }
+
             is MainEvent.OnChangeThemeContrast -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.THEME_CONTRAST, event.themeContrast)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             themeContrast = event.themeContrast.toThemeContrast()
                         )
@@ -86,7 +96,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeTheme -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.THEME, event.theme)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             theme = event.theme.toTheme()
                         )
@@ -97,7 +107,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeFontFamily -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.FONT, event.fontFamily)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             fontFamily = Constants.FONTS.find { font -> font.id == event.fontFamily }?.id
                                 ?: Constants.FONTS[0].id
@@ -109,7 +119,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeFontStyle -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.IS_ITALIC, event.fontStyle)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             isItalic = event.fontStyle
                         )
@@ -120,7 +130,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeFontSize -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.FONT_SIZE, event.fontSize)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             fontSize = event.fontSize
                         )
@@ -131,7 +141,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeLineHeight -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.LINE_HEIGHT, event.lineHeight)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             lineHeight = event.lineHeight
                         )
@@ -142,7 +152,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeParagraphHeight -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.PARAGRAPH_HEIGHT, event.paragraphHeight)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             paragraphHeight = event.paragraphHeight
                         )
@@ -153,7 +163,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeParagraphIndentation -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.PARAGRAPH_INDENTATION, event.bool)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             paragraphIndentation = event.bool
                         )
@@ -164,7 +174,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeBackgroundColor -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.BACKGROUND_COLOR, event.color)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             backgroundColor = event.color
                         )
@@ -175,7 +185,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeFontColor -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.FONT_COLOR, event.color)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             fontColor = event.color
                         )
@@ -186,7 +196,7 @@ class MainViewModel @Inject constructor(
             is MainEvent.OnChangeShowStartScreen -> {
                 viewModelScope.launch(Dispatchers.IO) {
                     setDatastore.execute(DataStoreConstants.SHOW_START_SCREEN, event.bool)
-                    _state.updateWithSavedHandle {
+                    updateStateWithSavedHandle {
                         it.copy(
                             showStartScreen = event.bool
                         )
@@ -199,204 +209,54 @@ class MainViewModel @Inject constructor(
     fun init(
         libraryViewModel: LibraryViewModel,
     ) {
-        val isViewModelsReady = combine(
+        viewModelScope.launch(Dispatchers.Main) {
-            libraryViewModel.isReady,
+            val settings = getAllSettings.execute(viewModelScope)
-        ) { values ->
+
-            values.all { it }
+            // All additional execution
+            changeLanguage.execute(settings.language!!)
+
+            updateStateWithSavedHandle {
+                settings
+            }
+            isSettingsReady.update { true }
         }
 
-        val isDataReady = combine(
+        viewModelScope.launch(Dispatchers.IO) {
-            _state
+            libraryViewModel.isReady.collectLatest { ready ->
-        ) {
+                isViewModelReady.update {
-            val value = it.first()
+                    ready
-
+                }
-            return@combine value.language != null &&
+            }
-                    value.theme != null &&
-                    value.darkTheme != null &&
-                    value.themeContrast != null &&
-                    value.fontFamily != null &&
-                    value.isItalic != null &&
-                    value.fontSize != null &&
-                    value.lineHeight != null &&
-                    value.paragraphHeight != null &&
-                    value.paragraphIndentation != null &&
-                    value.backgroundColor != null &&
-                    value.fontColor != null &&
-                    value.showStartScreen != null
         }
 
         val isReady = combine(
-            isViewModelsReady,
+            isViewModelReady,
-            isDataReady
+            isSettingsReady
         ) { values ->
             values.all { it }
         }
 
-        viewModelScope.launch {
+        viewModelScope.launch(Dispatchers.IO) {
-            isReady.collect { bool ->
+            isReady.first { bool ->
                 if (bool) {
                     _isReady.update {
                         true
                     }
-                    return@collect
+                }
+                bool
             }
         }
     }
 
-        // Language
-        viewModelScope.launch(Dispatchers.Main) {
-            getDatastore
-                .execute(
-                    DataStoreConstants.LANGUAGE,
-                    if (Constants.LANGUAGES.any { Locale.getDefault().language.take(2) == it.first }) {
-                        Locale.getDefault().language.take(2)
-                    } else {
-                        "en"
-                    }
-                )
-                .first {
-                    onEvent(MainEvent.OnChangeLanguage(it))
-                    it.isNotBlank()
-                }
-        }
-
-        // Theme
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(
-                    DataStoreConstants.THEME,
-                    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) Theme.DYNAMIC.name
-                    else Theme.BLUE.name
-                )
-                .first {
-                    onEvent(MainEvent.OnChangeTheme(it))
-                    it.isNotBlank()
-                }
-        }
-
-        // Dark Theme
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.DARK_THEME, DarkTheme.FOLLOW_SYSTEM.name)
-                .first {
-                    onEvent(MainEvent.OnChangeDarkTheme(it))
-                    it.isNotBlank()
-                }
-        }
-
-        // Theme Contrast
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.THEME_CONTRAST, ThemeContrast.STANDARD.name)
-                .first {
-                    onEvent(MainEvent.OnChangeThemeContrast(it))
-                    it.isNotBlank()
-                }
-        }
-
-        // Show Start Screen
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.SHOW_START_SCREEN, true)
-                .first {
-                    onEvent(MainEvent.OnChangeShowStartScreen(it))
-                    true
-                }
-        }
-
-        // Background Color
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.BACKGROUND_COLOR, Color.DarkGray.value.toLong())
-                .first {
-                    onEvent(MainEvent.OnChangeBackgroundColor(it))
-                    true
-                }
-        }
-
-        // Font Color
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.FONT_COLOR, Color.LightGray.value.toLong())
-                .first {
-                    onEvent(MainEvent.OnChangeFontColor(it))
-                    true
-                }
-        }
-
-        // Font Family
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.FONT, Constants.FONTS[0].id)
-                .first {
-                    onEvent(MainEvent.OnChangeFontFamily(it))
-                    true
-                }
-        }
-
-        // Font Style
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.IS_ITALIC, false)
-                .first {
-                    onEvent(MainEvent.OnChangeFontStyle(it))
-                    true
-                }
-        }
-
-        // Font Size
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.FONT_SIZE, 16)
-                .first {
-                    onEvent(MainEvent.OnChangeFontSize(it))
-                    it > 0
-                }
-        }
-
-        // Line Height
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.LINE_HEIGHT, 4)
-                .first {
-                    onEvent(MainEvent.OnChangeLineHeight(it))
-                    true
-                }
-        }
-
-        // Paragraph Height
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.PARAGRAPH_HEIGHT, 8)
-                .first {
-                    onEvent(MainEvent.OnChangeParagraphHeight(it))
-                    true
-                }
-        }
-
-        // Paragraph Indentation
-        viewModelScope.launch(Dispatchers.IO) {
-            getDatastore
-                .execute(DataStoreConstants.PARAGRAPH_INDENTATION, false)
-                .first {
-                    onEvent(MainEvent.OnChangeParagraphIndentation(it))
-                    true
-                }
-        }
-
-    }
-
     /**
-     * Updates [MutableStateFlow] along with [SavedStateHandle].
+     * Updates [MainState] along with [SavedStateHandle].
      */
-    private fun <T> MutableStateFlow<T>.updateWithSavedHandle(
+    private fun updateStateWithSavedHandle(
-        const: String = Constants.MAIN_STATE,
+        function: (MainState) -> MainState
-        function: (T) -> T
     ) {
-        val nextValue = function(value)
+        _state.update {
-        update {
+            stateHandle[Constants.MAIN_STATE] = function(it)
-            stateHandle[const] = nextValue
+            function(it)
-            nextValue
         }
     }
 }

app/src/main/java/ua/acclorite/book_story/presentation/screens/about/AboutScreen.kt

@@ -12,7 +12,6 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
@@ -32,6 +31,7 @@ import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
 import ua.acclorite.book_story.R
 import ua.acclorite.book_story.presentation.components.GoBackButton
+import ua.acclorite.book_story.presentation.components.collapsibleScrollBehaviorWithLazyListState
 import ua.acclorite.book_story.presentation.data.Navigator
 import ua.acclorite.book_story.presentation.screens.about.components.AboutItem
 import ua.acclorite.book_story.presentation.screens.about.data.AboutEvent
@@ -44,17 +44,12 @@ fun AboutScreen(
     navigator: Navigator
 ) {
     val context = LocalContext.current
-    val listState = rememberLazyListState()
+    val scrollState = TopAppBarDefaults.collapsibleScrollBehaviorWithLazyListState()
-    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior(
-        canScroll = {
-            listState.canScrollForward || listState.canScrollBackward
-        }
-    )
 
     Scaffold(
         Modifier
             .fillMaxSize()
-            .nestedScroll(scrollBehavior.nestedScrollConnection)
+            .nestedScroll(scrollState.first.nestedScrollConnection)
             .windowInsetsPadding(WindowInsets.navigationBars),
         containerColor = MaterialTheme.colorScheme.surface,
         topBar = {
@@ -65,7 +60,7 @@ fun AboutScreen(
                 navigationIcon = {
                     GoBackButton(navigator = navigator)
                 },
-                scrollBehavior = scrollBehavior,
+                scrollBehavior = scrollState.first,
                 colors = TopAppBarDefaults.largeTopAppBarColors(
                     containerColor = MaterialTheme.colorScheme.surface,
                     scrolledContainerColor = MaterialTheme.colorScheme.surfaceContainer
@@ -77,7 +72,7 @@ fun AboutScreen(
             Modifier
                 .fillMaxSize()
                 .padding(top = paddingValues.calculateTopPadding()),
-            state = listState
+            state = scrollState.second
         ) {
             item {
                 Spacer(modifier = Modifier.height(16.dp))

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

@@ -93,7 +93,7 @@ fun BookInfoScreen(
     val listState = rememberLazyListState()
     val snackbarState = remember { SnackbarHostState() }
     val refreshState = rememberPullRefreshState(
-        refreshing = state.isRefreshing,
+        refreshing = state.isRefreshing || state.isLoadingUpdate,
         onRefresh = {
             viewModel.onEvent(
                 BookInfoEvent.OnLoadUpdate(
@@ -161,7 +161,9 @@ fun BookInfoScreen(
                 isTopBarScrolled = null,
 
                 content1NavigationIcon = {
-                    GoBackButton(navigator = navigator, enabled = !state.isRefreshing)
+                    GoBackButton(navigator = navigator, enabled = !state.isRefreshing) {
+                        viewModel.onEvent(BookInfoEvent.OnCancelUpdate)
+                    }
                 },
                 content1Title = {
                     DefaultTransition(visible = firstVisibleItemIndex > 0) {
@@ -179,7 +181,7 @@ fun BookInfoScreen(
                         icon = Icons.Default.Refresh,
                         contentDescription = R.string.refresh_book_content_desc,
                         disableOnClick = false,
-                        enabled = !state.isRefreshing
+                        enabled = !state.isRefreshing && !state.isLoadingUpdate
                     ) {
                         viewModel.onEvent(
                             BookInfoEvent.OnLoadUpdate(
@@ -319,7 +321,7 @@ fun BookInfoScreen(
             )
 
             PullRefreshIndicator(
-                state.isRefreshing,
+                state.isRefreshing || state.isLoadingUpdate,
                 refreshState,
                 Modifier
                     .align(Alignment.TopCenter)
@@ -332,6 +334,7 @@ fun BookInfoScreen(
 
     BackHandler {
         if (!state.isRefreshing) {
+            viewModel.onEvent(BookInfoEvent.OnCancelUpdate)
             navigator.navigateBack()
         }
     }

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

@@ -126,7 +126,7 @@ fun BookInfoInfoSection(viewModel: BookInfoViewModel, book: Book) {
                         fontFamily = MaterialTheme.typography.headlineSmall.fontFamily
                     ),
                     onValueChange = {
-                        if (it.length < 80) {
+                        if (it.length < 100 || it.length < state.titleValue.length) {
                             viewModel.onEvent(BookInfoEvent.OnTitleValueChange(it))
                         }
                     },

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

@@ -61,6 +61,8 @@ sealed class BookInfoEvent {
         val textUpdated: Boolean,
     ) : BookInfoEvent()
 
+    data object OnCancelUpdate : BookInfoEvent()
+
     data class OnConfirmUpdate(
         val snackbarState: SnackbarHostState,
         val context: Context,

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

@@ -9,6 +9,7 @@ import ua.acclorite.book_story.domain.util.Constants
 data class BookInfoState(
     val book: Book = Constants.EMPTY_BOOK,
 
+    val isLoadingUpdate: Boolean = false,
     val isRefreshing: Boolean = false,
     val showConfirmUpdateDialog: Boolean = false,
     val updatedBook: Book? = null,

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

@@ -52,6 +52,7 @@ class BookInfoViewModel @Inject constructor(
     val state = _state.asStateFlow()
 
     private var job: Job? = null
+    private var job2: Job? = null
 
     fun onEvent(event: BookInfoEvent) {
         when (event) {
@@ -290,14 +291,17 @@ class BookInfoViewModel @Inject constructor(
             }
 
             is BookInfoEvent.OnLoadUpdate -> {
-                viewModelScope.launch(Dispatchers.IO) {
+                onEvent(BookInfoEvent.OnCancelUpdate)
+
+                job2 = viewModelScope.launch(Dispatchers.IO) {
                     _state.update {
                         it.copy(
-                            isRefreshing = true,
+                            isLoadingUpdate = true,
                             editTitle = false
                         )
                     }
 
+                    yield()
                     if (_state.value.book.file == null) {
                         onEvent(
                             BookInfoEvent.OnShowSnackbar(
@@ -323,13 +327,15 @@ class BookInfoViewModel @Inject constructor(
                         delay(500)
                         _state.update {
                             it.copy(
-                                isRefreshing = false
+                                isLoadingUpdate = false
                             )
                         }
                         return@launch
                     }
 
+                    yield()
                     val nullableBook = getBookFromFile.execute(_state.value.book.file!!)
+                    yield()
                     if (nullableBook is NullableBook.Null) {
                         onEvent(
                             BookInfoEvent.OnShowSnackbar(
@@ -352,11 +358,12 @@ class BookInfoViewModel @Inject constructor(
                         delay(500)
                         _state.update {
                             it.copy(
-                                isRefreshing = false
+                                isLoadingUpdate = false
                             )
                         }
                         return@launch
                     }
+                    yield()
 
                     val updatedBook = nullableBook.book?.first ?: return@launch
                     val book = _state.value.book
@@ -383,6 +390,7 @@ class BookInfoViewModel @Inject constructor(
                         textUpdated = true
                     }
 
+                    yield()
                     if (!authorUpdated && !descriptionUpdated && !textUpdated) {
                         onEvent(
                             BookInfoEvent.OnShowSnackbar(
@@ -395,12 +403,13 @@ class BookInfoViewModel @Inject constructor(
                         delay(500)
                         _state.update {
                             it.copy(
-                                isRefreshing = false
+                                isLoadingUpdate = false
                             )
                         }
                         return@launch
                     }
 
+                    yield()
                     onEvent(
                         BookInfoEvent.OnShowConfirmUpdateDialog(
                             updatedBook = updatedBook,
@@ -412,7 +421,7 @@ class BookInfoViewModel @Inject constructor(
 
                     _state.update {
                         it.copy(
-                            isRefreshing = false
+                            isLoadingUpdate = false
                         )
                     }
                 }
@@ -585,8 +594,19 @@ class BookInfoViewModel @Inject constructor(
                 }
             }
 
+            is BookInfoEvent.OnCancelUpdate -> {
+                _state.update {
+                    job2?.cancel()
+                    it.copy(
+                        showConfirmUpdateDialog = false,
+                        isLoadingUpdate = false
+                    )
+                }
+            }
+
             is BookInfoEvent.OnNavigateToReaderScreen -> {
                 viewModelScope.launch {
+                    onEvent(BookInfoEvent.OnCancelUpdate)
                     _state.value.book.id.let {
                         insertHistory.execute(
                             listOf(

app/src/main/java/ua/acclorite/book_story/presentation/screens/browse/BrowseScreen.kt

@@ -6,7 +6,6 @@ import androidx.activity.compose.BackHandler
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.core.tween
 import androidx.compose.animation.fadeOut
-import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.fillMaxHeight
@@ -71,7 +70,6 @@ import ua.acclorite.book_story.presentation.ui.Transitions
 @OptIn(
     ExperimentalMaterial3Api::class,
     ExperimentalPermissionsApi::class,
-    ExperimentalFoundationApi::class,
     ExperimentalMaterialApi::class
 )
 @Composable
@@ -249,7 +247,7 @@ fun BrowseScreen(
                     ) { selectableFile ->
                         BrowseFileItem(
                             file = selectableFile,
-                            modifier = Modifier.animateItemPlacement(),
+                            modifier = Modifier.animateItem(),
                             hasSelectedFiles = state.selectableFiles.any { it.second },
                             onLongClick = {
                                 Toast.makeText(

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/HelpScreen.kt

@@ -4,11 +4,11 @@ import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.WindowInsets
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.imePadding
 import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.LargeTopAppBar
 import androidx.compose.material3.MaterialTheme
@@ -18,34 +18,38 @@ import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.runtime.Composable
 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
 import androidx.hilt.navigation.compose.hiltViewModel
 import ua.acclorite.book_story.R
 import ua.acclorite.book_story.presentation.components.GoBackButton
+import ua.acclorite.book_story.presentation.components.collapsibleScrollBehaviorWithLazyListState
 import ua.acclorite.book_story.presentation.data.Navigator
-import ua.acclorite.book_story.presentation.screens.help.components.HelpClickableNote
+import ua.acclorite.book_story.presentation.screens.help.components.items.HelpAddBooksItem
+import ua.acclorite.book_story.presentation.screens.help.components.items.HelpClickMeNoteItem
+import ua.acclorite.book_story.presentation.screens.help.components.items.HelpCustomizeApp
+import ua.acclorite.book_story.presentation.screens.help.components.items.HelpCustomizeReader
+import ua.acclorite.book_story.presentation.screens.help.components.items.HelpEditBook
+import ua.acclorite.book_story.presentation.screens.help.components.items.HelpFindBooksItem
+import ua.acclorite.book_story.presentation.screens.help.components.items.HelpMoveOrDeleteBooks
+import ua.acclorite.book_story.presentation.screens.help.components.items.HelpReadBook
+import ua.acclorite.book_story.presentation.screens.help.components.items.HelpUpdateBook
 import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
 
-@OptIn(ExperimentalMaterial3Api::class)
+@OptIn(
+    ExperimentalMaterial3Api::class
+)
 @Composable
 fun HelpScreen(
     viewModel: HelpViewModel = hiltViewModel(),
     navigator: Navigator
 ) {
-    val context = LocalContext.current
+    val scrollState = TopAppBarDefaults.collapsibleScrollBehaviorWithLazyListState()
-    val listState = rememberLazyListState()
-    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior(
-        canScroll = {
-            listState.canScrollForward || listState.canScrollBackward
-        }
-    )
 
     Scaffold(
         Modifier
             .fillMaxSize()
-            .nestedScroll(scrollBehavior.nestedScrollConnection)
+            .nestedScroll(scrollState.first.nestedScrollConnection)
             .windowInsetsPadding(WindowInsets.navigationBars),
         containerColor = MaterialTheme.colorScheme.surface,
         topBar = {
@@ -56,7 +60,7 @@ fun HelpScreen(
                 navigationIcon = {
                     GoBackButton(navigator = navigator)
                 },
-                scrollBehavior = scrollBehavior,
+                scrollBehavior = scrollState.first,
                 colors = TopAppBarDefaults.largeTopAppBarColors(
                     containerColor = MaterialTheme.colorScheme.surface,
                     scrolledContainerColor = MaterialTheme.colorScheme.surfaceContainer
@@ -67,19 +71,88 @@ fun HelpScreen(
         LazyColumn(
             Modifier
                 .fillMaxSize()
-                .padding(top = paddingValues.calculateTopPadding())
+                .padding(top = paddingValues.calculateTopPadding(), start = 18.dp, end = 18.dp)
-                .padding(horizontal = 18.dp),
+                .imePadding(),
-            state = listState
+            state = scrollState.second
         ) {
-            item { Spacer(modifier = Modifier.height(16.dp)) }
+            item {
+                Spacer(
+                    modifier = Modifier
+                        .animateItem()
+                        .height(16.dp)
+                )
+            }
 
-            item { HelpClickableNote() }
+            item {
+                HelpClickMeNoteItem(viewModel = viewModel)
+            }
 
-            item { Spacer(modifier = Modifier.height(16.dp)) }
+            item {
+                Spacer(
+                    modifier = Modifier
+                        .animateItem()
+                        .height(16.dp)
+                )
+            }
 
-            /* TODO Help screen */
 
-            item { Spacer(modifier = Modifier.height(48.dp)) }
+            item {
+                HelpFindBooksItem(viewModel = viewModel)
+            }
+
+            item {
+                HelpAddBooksItem(navigator = navigator, viewModel = viewModel)
+            }
+
+            item {
+                HelpCustomizeApp(
+                    navigator = navigator,
+                    viewModel = viewModel
+                )
+            }
+
+            item {
+                HelpMoveOrDeleteBooks(
+                    navigator = navigator,
+                    viewModel = viewModel
+                )
+            }
+
+            item {
+                HelpEditBook(
+                    navigator = navigator,
+                    viewModel = viewModel
+                )
+            }
+
+            item {
+                HelpReadBook(
+                    navigator = navigator,
+                    viewModel = viewModel
+                )
+            }
+
+            item {
+                HelpCustomizeReader(
+                    navigator = navigator,
+                    viewModel = viewModel
+                )
+            }
+
+            item {
+                HelpUpdateBook(
+                    navigator = navigator,
+                    viewModel = viewModel
+                )
+            }
+
+            item {
+                Spacer(
+                    modifier = Modifier
+                        .animateItem()
+                        .height(48.dp)
+                )
+            }
         }
     }
 }

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/HelpAnnotation.kt

@@ -0,0 +1,25 @@
+package ua.acclorite.book_story.presentation.screens.help.components
+
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.text.SpanStyle
+import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.withStyle
+
+@Composable
+fun AnnotatedString.Builder.HelpAnnotation(
+    tag: String,
+    block: @Composable AnnotatedString.Builder.() -> Unit
+) {
+    pushStringAnnotation(tag = tag, annotation = "")
+    withStyle(
+        style = SpanStyle(
+            color = MaterialTheme.colorScheme.tertiary,
+            fontWeight = FontWeight.Medium
+        )
+    ) {
+        block()
+    }
+    pop()
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/HelpClickableNote.kt

@@ -1,79 +1,69 @@
 package ua.acclorite.book_story.presentation.screens.help.components
 
-import android.widget.Toast
 import androidx.compose.foundation.clickable
-import androidx.compose.foundation.layout.Arrangement
 import androidx.compose.foundation.layout.Column
-import androidx.compose.foundation.layout.ExperimentalLayoutApi
-import androidx.compose.foundation.layout.FlowRow
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.foundation.text.ClickableText
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.outlined.Info
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
-import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
-import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
-import androidx.compose.ui.text.font.FontWeight
+import androidx.compose.ui.text.AnnotatedString
 import androidx.compose.ui.unit.dp
 import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.components.CustomTooltip
+import ua.acclorite.book_story.presentation.ui.SlidingTransition
 
-@OptIn(ExperimentalLayoutApi::class)
+/**
+ * When clicked returns a Tag from [tags] (if present in [text])
+ */
 @Composable
-fun HelpClickableNote() {
+fun LazyItemScope.HelpClickableNote(
-    val context = LocalContext.current
+    text: AnnotatedString,
-
+    tags: List<String> = emptyList(),
-    Column {
+    isNoteFullyShown: Boolean,
+    onIconClick: () -> Unit,
+    onTagClick: (String) -> Unit
+) {
+    Column(Modifier.animateItem()) {
+        CustomTooltip(text = stringResource(R.string.note_content_desc)) {
             Icon(
                 imageVector = Icons.Outlined.Info,
-            contentDescription = stringResource(id = R.string.note_content_desc),
                 modifier = Modifier
-                .size(20.dp),
+                    .size(20.dp)
+                    .clickable(interactionSource = null, indication = null) {
+                        onIconClick()
+                    },
+                contentDescription = stringResource(R.string.note_content_desc),
                 tint = MaterialTheme.colorScheme.onSurfaceVariant
             )
+        }
+
+        SlidingTransition(visible = isNoteFullyShown) {
+            Column {
                 Spacer(modifier = Modifier.height(8.dp))
-        FlowRow(verticalArrangement = Arrangement.spacedBy(1.dp)) {
+                ClickableText(
-            Text(
+                    text = text,
-                stringResource(id = R.string.clickable_note_1) + " ",
+                    style = MaterialTheme.typography.bodySmall.copy(
-                style = MaterialTheme.typography.bodySmall,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-                modifier = Modifier.align(Alignment.CenterVertically)
-            )
-            Text(
-                stringResource(id = R.string.clickable_note_2) + " ",
-                style = MaterialTheme.typography.bodySmall,
-                fontWeight = FontWeight.Medium,
-                color = MaterialTheme.colorScheme.tertiary,
-                modifier = Modifier
-                    .align(Alignment.CenterVertically)
-                    .clickable(
-                        interactionSource = null,
-                        indication = null,
-                        onClick = {
-                            Toast
-                                .makeText(
-                                    context,
-                                    context.getString(R.string.clickable_note_action),
-                                    Toast.LENGTH_SHORT
-                                )
-                                .show()
-                        }
-                    )
-            )
-            Text(
-                stringResource(id = R.string.clickable_note_3),
-                style = MaterialTheme.typography.bodySmall,
-                color = MaterialTheme.colorScheme.onSurfaceVariant,
-                modifier = Modifier.align(Alignment.CenterVertically)
                     )
+                ) { offset ->
+                    tags.forEach { tag ->
+                        text.getStringAnnotations(tag = tag, start = offset, end = offset)
+                            .firstOrNull()?.let {
+                                onTagClick(tag)
+                            }
+                    }
+                }
+            }
         }
     }
-
 }
 
 

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/HelpItem.kt

@@ -0,0 +1,106 @@
+package ua.acclorite.book_story.presentation.screens.help.components
+
+import androidx.compose.animation.core.animateFloatAsState
+import androidx.compose.animation.core.tween
+import androidx.compose.foundation.clickable
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.ColumnScope
+import androidx.compose.foundation.layout.Row
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.size
+import androidx.compose.foundation.layout.width
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.foundation.text.ClickableText
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.outlined.ArrowDropUp
+import androidx.compose.material3.Icon
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Alignment
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.draw.rotate
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.AnnotatedString
+import androidx.compose.ui.unit.dp
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.ui.SlidingTransition
+
+@Composable
+fun LazyItemScope.HelpItem(
+    title: String,
+    description: AnnotatedString,
+    customContent: @Composable ColumnScope.() -> Unit = {},
+    tags: List<String>,
+    shouldShowDescription: Boolean,
+    onTitleClick: () -> Unit,
+    onTagClick: (String) -> Unit
+) {
+    val animatedArrowRotation by animateFloatAsState(
+        targetValue = if (shouldShowDescription) 0f else -180f,
+        animationSpec = tween(300),
+        label = stringResource(id = R.string.arrow_anim_content_desc)
+    )
+
+
+    Column(Modifier.animateItem()) {
+        Spacer(
+            modifier = Modifier.height(8.dp)
+        )
+
+        Row(
+            modifier = Modifier
+                .fillMaxWidth()
+                .clickable(interactionSource = null, indication = null) {
+                    onTitleClick()
+                },
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            Text(
+                text = title,
+                color = MaterialTheme.colorScheme.onSurface,
+                style = MaterialTheme.typography.titleLarge,
+                modifier = Modifier.weight(1f)
+            )
+            Spacer(modifier = Modifier.width(8.dp))
+            Icon(
+                imageVector = Icons.Outlined.ArrowDropUp,
+                tint = MaterialTheme.colorScheme.onSurfaceVariant,
+                modifier = Modifier
+                    .size(24.dp)
+                    .rotate(animatedArrowRotation),
+                contentDescription = stringResource(id = R.string.arrow_content_desc)
+            )
+        }
+
+
+        SlidingTransition(
+            visible = shouldShowDescription
+        ) {
+            Column {
+                Spacer(modifier = Modifier.height(16.dp))
+                ClickableText(
+                    text = description,
+                    style = MaterialTheme.typography.bodyMedium.copy(
+                        color = MaterialTheme.colorScheme.onSurfaceVariant
+                    )
+                ) { offset ->
+                    tags.forEach { tag ->
+                        description.getStringAnnotations(tag = tag, start = offset, end = offset)
+                            .firstOrNull()?.let {
+                                onTagClick(tag)
+                            }
+                    }
+                }
+                customContent()
+            }
+        }
+
+        Spacer(
+            modifier = Modifier.height(8.dp)
+        )
+    }
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/items/HelpAddBooksItem.kt

@@ -0,0 +1,58 @@
+package ua.acclorite.book_story.presentation.screens.help.components.items
+
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.buildAnnotatedString
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.data.Navigator
+import ua.acclorite.book_story.presentation.data.Screen
+import ua.acclorite.book_story.presentation.screens.help.components.HelpAnnotation
+import ua.acclorite.book_story.presentation.screens.help.components.HelpItem
+import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
+
+@Composable
+fun LazyItemScope.HelpAddBooksItem(navigator: Navigator, viewModel: HelpViewModel) {
+    val state by viewModel.state.collectAsState()
+
+    HelpItem(
+        title = stringResource(id = R.string.help_title_how_to_add_books),
+        description = buildAnnotatedString {
+            append(stringResource(id = R.string.help_desc_how_to_add_books_1) + " ")
+
+            HelpAnnotation(tag = "browse") {
+                append(stringResource(id = R.string.help_desc_how_to_add_books_2))
+            }
+            append(". ")
+
+            append(stringResource(id = R.string.help_desc_how_to_add_books_3) + " ")
+
+            HelpAnnotation(tag = "library") {
+                append(stringResource(id = R.string.help_desc_how_to_add_books_4))
+            }
+            append(".")
+        },
+        tags = listOf("browse", "library"),
+        shouldShowDescription = state.showHelpItem2,
+        onTitleClick = {
+            viewModel.onUpdate {
+                it.copy(
+                    showHelpItem2 = !it.showHelpItem2
+                )
+            }
+        },
+        onTagClick = { tag ->
+            when (tag) {
+                "browse" -> {
+                    navigator.navigate(Screen.BROWSE, true)
+                }
+
+                "library" -> {
+                    navigator.navigate(Screen.LIBRARY, true)
+                }
+            }
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/items/HelpClickMeNoteItem.kt

@@ -0,0 +1,52 @@
+package ua.acclorite.book_story.presentation.screens.help.components.items
+
+import android.widget.Toast
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.buildAnnotatedString
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.screens.help.components.HelpAnnotation
+import ua.acclorite.book_story.presentation.screens.help.components.HelpClickableNote
+import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
+
+@Composable
+fun LazyItemScope.HelpClickMeNoteItem(viewModel: HelpViewModel) {
+    val state by viewModel.state.collectAsState()
+    val context = LocalContext.current
+
+    HelpClickableNote(
+        text = buildAnnotatedString {
+            append(stringResource(id = R.string.help_clickable_note_1) + " ")
+
+            HelpAnnotation(tag = "note") {
+                append(stringResource(id = R.string.help_clickable_note_2))
+            }
+
+            append(" " + stringResource(id = R.string.help_clickable_note_3))
+        },
+        tags = listOf("note"),
+        isNoteFullyShown = state.showNote1,
+        onIconClick = {
+            viewModel.onUpdate {
+                it.copy(
+                    showNote1 = !it.showNote1
+                )
+            }
+        },
+        onTagClick = { tag ->
+            when (tag) {
+                "note" -> {
+                    Toast.makeText(
+                        context,
+                        context.getString(R.string.help_clickable_note_action),
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            }
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/items/HelpCustomizeApp.kt

@@ -0,0 +1,49 @@
+package ua.acclorite.book_story.presentation.screens.help.components.items
+
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.buildAnnotatedString
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.data.Navigator
+import ua.acclorite.book_story.presentation.data.Screen
+import ua.acclorite.book_story.presentation.screens.help.components.HelpAnnotation
+import ua.acclorite.book_story.presentation.screens.help.components.HelpItem
+import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
+
+@Composable
+fun LazyItemScope.HelpCustomizeApp(viewModel: HelpViewModel, navigator: Navigator) {
+    val state by viewModel.state.collectAsState()
+
+    HelpItem(
+        title = stringResource(id = R.string.help_title_how_to_customize_app),
+        description = buildAnnotatedString {
+            append(stringResource(id = R.string.help_desc_how_to_customize_app_1) + " ")
+
+            HelpAnnotation(tag = "settings") {
+                append(stringResource(id = R.string.help_desc_how_to_customize_app_2))
+            }
+            append(". ")
+
+            append(stringResource(id = R.string.help_desc_how_to_customize_app_3))
+        },
+        tags = listOf("settings"),
+        shouldShowDescription = state.showHelpItem3,
+        onTitleClick = {
+            viewModel.onUpdate {
+                it.copy(
+                    showHelpItem3 = !it.showHelpItem3
+                )
+            }
+        },
+        onTagClick = { tag ->
+            when (tag) {
+                "settings" -> {
+                    navigator.navigate(Screen.SETTINGS, true)
+                }
+            }
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/items/HelpCustomizeReader.kt

@@ -0,0 +1,49 @@
+package ua.acclorite.book_story.presentation.screens.help.components.items
+
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.buildAnnotatedString
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.data.Navigator
+import ua.acclorite.book_story.presentation.data.Screen
+import ua.acclorite.book_story.presentation.screens.help.components.HelpAnnotation
+import ua.acclorite.book_story.presentation.screens.help.components.HelpItem
+import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
+
+@Composable
+fun LazyItemScope.HelpCustomizeReader(viewModel: HelpViewModel, navigator: Navigator) {
+    val state by viewModel.state.collectAsState()
+
+    HelpItem(
+        title = stringResource(id = R.string.help_title_how_to_customize_reader),
+        description = buildAnnotatedString {
+            append(stringResource(id = R.string.help_desc_how_to_customize_reader_1) + " ")
+
+            HelpAnnotation(tag = "settings") {
+                append(stringResource(id = R.string.help_desc_how_to_customize_reader_2))
+            }
+            append(" ")
+
+            append(stringResource(id = R.string.help_desc_how_to_customize_reader_3))
+        },
+        tags = listOf("settings"),
+        shouldShowDescription = state.showHelpItem7,
+        onTitleClick = {
+            viewModel.onUpdate {
+                it.copy(
+                    showHelpItem7 = !it.showHelpItem7
+                )
+            }
+        },
+        onTagClick = { tag ->
+            when (tag) {
+                "settings" -> {
+                    navigator.navigate(Screen.SETTINGS, true)
+                }
+            }
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/items/HelpEditBook.kt

@@ -0,0 +1,49 @@
+package ua.acclorite.book_story.presentation.screens.help.components.items
+
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.buildAnnotatedString
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.data.Navigator
+import ua.acclorite.book_story.presentation.data.Screen
+import ua.acclorite.book_story.presentation.screens.help.components.HelpAnnotation
+import ua.acclorite.book_story.presentation.screens.help.components.HelpItem
+import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
+
+@Composable
+fun LazyItemScope.HelpEditBook(viewModel: HelpViewModel, navigator: Navigator) {
+    val state by viewModel.state.collectAsState()
+
+    HelpItem(
+        title = stringResource(id = R.string.help_title_how_to_edit_book),
+        description = buildAnnotatedString {
+            append(stringResource(id = R.string.help_desc_how_to_edit_book_1) + " ")
+
+            HelpAnnotation(tag = "library") {
+                append(stringResource(id = R.string.help_desc_how_to_edit_book_2))
+            }
+            append(" ")
+
+            append(stringResource(id = R.string.help_desc_how_to_edit_book_3))
+        },
+        tags = listOf("library"),
+        shouldShowDescription = state.showHelpItem5,
+        onTitleClick = {
+            viewModel.onUpdate {
+                it.copy(
+                    showHelpItem5 = !it.showHelpItem5
+                )
+            }
+        },
+        onTagClick = { tag ->
+            when (tag) {
+                "library" -> {
+                    navigator.navigate(Screen.LIBRARY, true)
+                }
+            }
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/items/HelpFindBooksItem.kt

@@ -0,0 +1,184 @@
+package ua.acclorite.book_story.presentation.screens.help.components.items
+
+import android.widget.Toast
+import androidx.compose.foundation.layout.Box
+import androidx.compose.foundation.layout.Column
+import androidx.compose.foundation.layout.Spacer
+import androidx.compose.foundation.layout.fillMaxWidth
+import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.foundation.text.ClickableText
+import androidx.compose.foundation.text.KeyboardActions
+import androidx.compose.foundation.text.KeyboardOptions
+import androidx.compose.material.icons.Icons
+import androidx.compose.material.icons.filled.Search
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.OutlinedTextField
+import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.compose.ui.res.stringArrayResource
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.buildAnnotatedString
+import androidx.compose.ui.text.input.ImeAction
+import androidx.compose.ui.text.input.KeyboardCapitalization
+import androidx.compose.ui.unit.dp
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.components.CustomIconButton
+import ua.acclorite.book_story.presentation.screens.help.components.HelpAnnotation
+import ua.acclorite.book_story.presentation.screens.help.components.HelpItem
+import ua.acclorite.book_story.presentation.screens.help.data.HelpEvent
+import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
+import ua.acclorite.book_story.presentation.ui.SlidingTransition
+
+@Composable
+fun LazyItemScope.HelpFindBooksItem(viewModel: HelpViewModel) {
+    val state by viewModel.state.collectAsState()
+    val context = LocalContext.current
+
+    val sites = stringArrayResource(id = R.array.book_sites)
+    val text = buildAnnotatedString {
+        append(stringResource(id = R.string.help_field_support) + " ")
+
+        sites.forEachIndexed { index, string ->
+            HelpAnnotation(tag = string) {
+                append(string.substringBeforeLast("|"))
+            }
+
+            if (index < sites.lastIndex) {
+                append(", ")
+            }
+        }
+    }
+
+    HelpItem(
+        title = stringResource(id = R.string.help_title_how_to_find_books),
+        description = buildAnnotatedString {
+            append(stringResource(id = R.string.help_desc_how_to_find_books))
+        },
+        tags = emptyList(),
+        shouldShowDescription = state.showHelpItem1,
+        onTitleClick = {
+            viewModel.onUpdate {
+                it.copy(
+                    showHelpItem1 = !it.showHelpItem1
+                )
+            }
+        },
+        customContent = {
+            Spacer(modifier = Modifier.height(4.dp))
+            OutlinedTextField(
+                value = state.textFieldValue,
+                modifier = Modifier
+                    .fillMaxWidth(),
+                onValueChange = { value ->
+                    viewModel.onUpdate {
+                        it.copy(
+                            textFieldValue = value,
+                            showError = false
+                        )
+                    }
+                },
+                label = {
+                    Text(text = stringResource(id = R.string.help_field_placeholder))
+                },
+                keyboardActions = KeyboardActions(
+                    onSearch = {
+                        viewModel.onEvent(
+                            HelpEvent.OnSearchInWeb(
+                                context = context,
+                                noAppsFound = {
+                                    Toast.makeText(
+                                        context,
+                                        context.getString(R.string.error_no_browser),
+                                        Toast.LENGTH_SHORT
+                                    ).show()
+                                }
+                            )
+                        )
+                    }
+                ),
+                keyboardOptions = KeyboardOptions(
+                    KeyboardCapitalization.Words,
+                    imeAction = ImeAction.Search
+                ),
+                trailingIcon = {
+                    CustomIconButton(
+                        icon = Icons.Default.Search,
+                        contentDescription = R.string.search_content_desc,
+                        disableOnClick = false,
+                        enabled = !state.showError,
+                        color = if (state.showError) {
+                            MaterialTheme.colorScheme.outline
+                        } else {
+                            MaterialTheme.colorScheme.primary
+                        }
+                    ) {
+                        viewModel.onEvent(
+                            HelpEvent.OnSearchInWeb(
+                                context = context,
+                                noAppsFound = {
+                                    Toast.makeText(
+                                        context,
+                                        context.getString(R.string.error_no_browser),
+                                        Toast.LENGTH_SHORT
+                                    ).show()
+                                }
+                            )
+                        )
+                    }
+                },
+                supportingText = {
+                    Column {
+                        Spacer(modifier = Modifier.height(2.dp))
+                        Box {
+                            SlidingTransition(visible = state.showError) {
+                                Text(
+                                    text = stringResource(id = R.string.help_field_error),
+                                    color = MaterialTheme.colorScheme.error,
+                                    style = MaterialTheme.typography.bodySmall
+                                )
+                            }
+                            SlidingTransition(visible = !state.showError) {
+                                ClickableText(
+                                    text = text,
+                                    style = MaterialTheme.typography.bodySmall.copy(
+                                        color = MaterialTheme.colorScheme.onSurfaceVariant
+                                    )
+                                ) { offset ->
+                                    sites.forEach { tag ->
+                                        text.getStringAnnotations(
+                                            tag = tag,
+                                            start = offset,
+                                            end = offset
+                                        ).firstOrNull()?.let {
+                                            viewModel.onEvent(
+                                                HelpEvent.OnNavigateToBrowserPage(
+                                                    page = tag.substringAfterLast("|"),
+                                                    context = context,
+                                                    noAppsFound = {
+                                                        Toast.makeText(
+                                                            context,
+                                                            context.getString(R.string.error_no_browser),
+                                                            Toast.LENGTH_SHORT
+                                                        ).show()
+                                                    }
+                                                )
+                                            )
+                                        }
+                                    }
+
+                                }
+                            }
+                        }
+                    }
+                },
+                singleLine = true
+            )
+        },
+        onTagClick = {}
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/items/HelpMoveOrDeleteBooks.kt

@@ -0,0 +1,49 @@
+package ua.acclorite.book_story.presentation.screens.help.components.items
+
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.buildAnnotatedString
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.data.Navigator
+import ua.acclorite.book_story.presentation.data.Screen
+import ua.acclorite.book_story.presentation.screens.help.components.HelpAnnotation
+import ua.acclorite.book_story.presentation.screens.help.components.HelpItem
+import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
+
+@Composable
+fun LazyItemScope.HelpMoveOrDeleteBooks(viewModel: HelpViewModel, navigator: Navigator) {
+    val state by viewModel.state.collectAsState()
+
+    HelpItem(
+        title = stringResource(id = R.string.help_title_how_to_move_or_delete_books),
+        description = buildAnnotatedString {
+            append(stringResource(id = R.string.help_desc_how_to_move_or_delete_books_1) + " ")
+
+            HelpAnnotation(tag = "library") {
+                append(stringResource(id = R.string.help_desc_how_to_move_or_delete_books_2))
+            }
+            append(". ")
+
+            append(stringResource(id = R.string.help_desc_how_to_move_or_delete_books_3))
+        },
+        tags = listOf("library"),
+        shouldShowDescription = state.showHelpItem4,
+        onTitleClick = {
+            viewModel.onUpdate {
+                it.copy(
+                    showHelpItem4 = !it.showHelpItem4
+                )
+            }
+        },
+        onTagClick = { tag ->
+            when (tag) {
+                "library" -> {
+                    navigator.navigate(Screen.LIBRARY, true)
+                }
+            }
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/items/HelpReadBook.kt

@@ -0,0 +1,49 @@
+package ua.acclorite.book_story.presentation.screens.help.components.items
+
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.buildAnnotatedString
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.data.Navigator
+import ua.acclorite.book_story.presentation.data.Screen
+import ua.acclorite.book_story.presentation.screens.help.components.HelpAnnotation
+import ua.acclorite.book_story.presentation.screens.help.components.HelpItem
+import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
+
+@Composable
+fun LazyItemScope.HelpReadBook(viewModel: HelpViewModel, navigator: Navigator) {
+    val state by viewModel.state.collectAsState()
+
+    HelpItem(
+        title = stringResource(id = R.string.help_title_how_to_read_book),
+        description = buildAnnotatedString {
+            append(stringResource(id = R.string.help_desc_how_to_read_book_1) + " ")
+
+            HelpAnnotation(tag = "library") {
+                append(stringResource(id = R.string.help_desc_how_to_read_book_2))
+            }
+            append(". ")
+
+            append(stringResource(id = R.string.help_desc_how_to_read_book_3))
+        },
+        tags = listOf("library"),
+        shouldShowDescription = state.showHelpItem6,
+        onTitleClick = {
+            viewModel.onUpdate {
+                it.copy(
+                    showHelpItem6 = !it.showHelpItem6
+                )
+            }
+        },
+        onTagClick = { tag ->
+            when (tag) {
+                "library" -> {
+                    navigator.navigate(Screen.LIBRARY, true)
+                }
+            }
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/components/items/HelpUpdateBook.kt

@@ -0,0 +1,49 @@
+package ua.acclorite.book_story.presentation.screens.help.components.items
+
+import androidx.compose.foundation.lazy.LazyItemScope
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.collectAsState
+import androidx.compose.runtime.getValue
+import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.text.buildAnnotatedString
+import ua.acclorite.book_story.R
+import ua.acclorite.book_story.presentation.data.Navigator
+import ua.acclorite.book_story.presentation.data.Screen
+import ua.acclorite.book_story.presentation.screens.help.components.HelpAnnotation
+import ua.acclorite.book_story.presentation.screens.help.components.HelpItem
+import ua.acclorite.book_story.presentation.screens.help.data.HelpViewModel
+
+@Composable
+fun LazyItemScope.HelpUpdateBook(viewModel: HelpViewModel, navigator: Navigator) {
+    val state by viewModel.state.collectAsState()
+
+    HelpItem(
+        title = stringResource(id = R.string.help_title_how_to_update_book),
+        description = buildAnnotatedString {
+            append(stringResource(id = R.string.help_desc_how_to_update_book_1) + " ")
+
+            HelpAnnotation(tag = "library") {
+                append(stringResource(id = R.string.help_desc_how_to_update_book_2))
+            }
+            append(" ")
+
+            append(stringResource(id = R.string.help_desc_how_to_update_book_3))
+        },
+        tags = listOf("library"),
+        shouldShowDescription = state.showHelpItem8,
+        onTitleClick = {
+            viewModel.onUpdate {
+                it.copy(
+                    showHelpItem8 = !it.showHelpItem8
+                )
+            }
+        },
+        onTagClick = { tag ->
+            when (tag) {
+                "library" -> {
+                    navigator.navigate(Screen.LIBRARY, true)
+                }
+            }
+        }
+    )
+}

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/data/HelpEvent.kt

@@ -3,6 +3,11 @@ package ua.acclorite.book_story.presentation.screens.help.data
 import android.content.Context
 
 sealed class HelpEvent {
+    data class OnSearchInWeb(
+        val context: Context,
+        val noAppsFound: () -> Unit
+    ) : HelpEvent()
+
     data class OnNavigateToBrowserPage(
         val page: String,
         val context: Context,

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/data/HelpState.kt

@@ -0,0 +1,17 @@
+package ua.acclorite.book_story.presentation.screens.help.data
+
+data class HelpState(
+    val showNote1: Boolean = true,
+
+    val showHelpItem1: Boolean = false,
+    val textFieldValue: String = "",
+    val showError: Boolean = false,
+
+    val showHelpItem2: Boolean = false,
+    val showHelpItem3: Boolean = false,
+    val showHelpItem4: Boolean = false,
+    val showHelpItem5: Boolean = false,
+    val showHelpItem6: Boolean = false,
+    val showHelpItem7: Boolean = false,
+    val showHelpItem8: Boolean = false,
+)

app/src/main/java/ua/acclorite/book_story/presentation/screens/help/data/HelpViewModel.kt

@@ -1,10 +1,14 @@
 package ua.acclorite.book_story.presentation.screens.help.data
 
+import android.app.SearchManager
 import android.content.Intent
 import android.net.Uri
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.asStateFlow
+import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -13,6 +17,9 @@ class HelpViewModel @Inject constructor(
 
 ) : ViewModel() {
 
+    private val _state = MutableStateFlow(HelpState())
+    val state = _state.asStateFlow()
+
     fun onEvent(event: HelpEvent) {
         when (event) {
             is HelpEvent.OnNavigateToBrowserPage -> {
@@ -30,6 +37,40 @@ class HelpViewModel @Inject constructor(
                     event.noAppsFound()
                 }
             }
+
+            is HelpEvent.OnSearchInWeb -> {
+                viewModelScope.launch {
+                    if (_state.value.textFieldValue.isBlank()) {
+                        _state.update {
+                            it.copy(
+                                showError = true
+                            )
+                        }
+                        return@launch
+                    }
+
+                    val intent = Intent()
+
+                    intent.action = Intent.ACTION_WEB_SEARCH
+                    intent.putExtra(
+                        SearchManager.QUERY,
+                        "${_state.value.textFieldValue.trim()} filetype:txt OR filetype:pdf"
+                    )
+
+                    if (intent.resolveActivity(event.context.packageManager) != null) {
+                        event.context.startActivity(intent)
+                        return@launch
+                    }
+
+                    event.noAppsFound()
+                }
+            }
+        }
+    }
+
+    fun onUpdate(calculation: (HelpState) -> HelpState) {
+        _state.update {
+            calculation(it)
         }
     }
 }

app/src/main/java/ua/acclorite/book_story/presentation/screens/history/HistoryScreen.kt

@@ -4,7 +4,6 @@ import androidx.activity.compose.BackHandler
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.animation.core.tween
 import androidx.compose.animation.fadeOut
-import androidx.compose.foundation.ExperimentalFoundationApi
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.PaddingValues
 import androidx.compose.foundation.layout.Spacer
@@ -68,7 +67,7 @@ import ua.acclorite.book_story.presentation.ui.Transitions
 
 @OptIn(
     ExperimentalMaterial3Api::class,
-    ExperimentalMaterialApi::class, ExperimentalFoundationApi::class
+    ExperimentalMaterialApi::class
 )
 @Composable
 fun HistoryScreen(
@@ -214,7 +213,7 @@ fun HistoryScreen(
                             }
 
                             CategoryTitle(
-                                modifier = Modifier.animateItemPlacement(),
+                                modifier = Modifier.animateItem(),
                                 title = when (groupedHistory.title) {
                                     "today" -> stringResource(id = R.string.today)
                                     "yesterday" -> stringResource(id = R.string.yesterday)
@@ -230,7 +229,7 @@ fun HistoryScreen(
                             groupedHistory.history, key = { it.id }
                         ) {
                             HistoryItem(
-                                modifier = Modifier.animateItemPlacement(),
+                                modifier = Modifier.animateItem(),
                                 history = it,
                                 isOnClickEnabled = !state.isRefreshing,
                                 onBodyClick = {

app/src/main/java/ua/acclorite/book_story/presentation/screens/library/data/LibraryViewModel.kt

@@ -347,6 +347,7 @@ class LibraryViewModel @Inject constructor(
         query: String = if (_state.value.showSearch) _state.value.searchQuery else ""
     ) {
         val books = getBooks.execute(query).map { book -> Pair(book, false) }
+
         val categorizedBooks = books.groupBy {
             it.first.category
         }.toList().map {

app/src/main/java/ua/acclorite/book_story/presentation/screens/reader/ReaderScreen.kt

@@ -89,7 +89,11 @@ fun ReaderScreen(
     val listState = rememberLazyListState()
 
     val state by viewModel.state.collectAsState()
-    val canScrollForward by remember { derivedStateOf { listState.canScrollForward } }
+    val canScroll by remember {
+        derivedStateOf {
+            listState.canScrollBackward && listState.canScrollForward
+        }
+    }
     val nestedScrollConnection = remember {
         object : NestedScrollConnection {
             override fun onPostScroll(
@@ -129,8 +133,8 @@ fun ReaderScreen(
             }
         )
     }
-    LaunchedEffect(canScrollForward) {
+    LaunchedEffect(canScroll) {
-        if (!canScrollForward && !state.showMenu && !loading) {
+        if (!canScroll && !state.showMenu && !loading) {
             viewModel.onEvent(ReaderEvent.OnShowHideMenu(context = context))
         }
     }

app/src/main/java/ua/acclorite/book_story/presentation/screens/settings/SettingsScreen.kt

@@ -8,7 +8,6 @@ import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.MenuBook
 import androidx.compose.material.icons.filled.DisplaySettings
@@ -26,6 +25,7 @@ import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.dp
 import ua.acclorite.book_story.R
 import ua.acclorite.book_story.presentation.components.GoBackButton
+import ua.acclorite.book_story.presentation.components.collapsibleScrollBehaviorWithLazyListState
 import ua.acclorite.book_story.presentation.data.Navigator
 import ua.acclorite.book_story.presentation.data.Screen
 import ua.acclorite.book_story.presentation.screens.settings.components.SettingsCategoryItem
@@ -35,17 +35,12 @@ import ua.acclorite.book_story.presentation.screens.settings.components.Settings
 fun SettingsScreen(
     navigator: Navigator
 ) {
-    val listState = rememberLazyListState()
+    val scrollState = TopAppBarDefaults.collapsibleScrollBehaviorWithLazyListState()
-    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior(
-        canScroll = {
-            listState.canScrollForward || listState.canScrollBackward
-        }
-    )
 
     Scaffold(
         Modifier
             .fillMaxSize()
-            .nestedScroll(scrollBehavior.nestedScrollConnection)
+            .nestedScroll(scrollState.first.nestedScrollConnection)
             .windowInsetsPadding(WindowInsets.navigationBars),
         containerColor = MaterialTheme.colorScheme.surface,
         topBar = {
@@ -56,7 +51,7 @@ fun SettingsScreen(
                 navigationIcon = {
                     GoBackButton(navigator = navigator)
                 },
-                scrollBehavior = scrollBehavior,
+                scrollBehavior = scrollState.first,
                 colors = TopAppBarDefaults.largeTopAppBarColors(
                     containerColor = MaterialTheme.colorScheme.surface,
                     scrolledContainerColor = MaterialTheme.colorScheme.surfaceContainer
@@ -68,7 +63,7 @@ fun SettingsScreen(
             Modifier
                 .fillMaxSize()
                 .padding(top = paddingValues.calculateTopPadding()),
-            state = listState
+            state = scrollState.second
         ) {
             item {
                 Spacer(modifier = Modifier.height(16.dp))

app/src/main/java/ua/acclorite/book_story/presentation/screens/settings/components/ColorPickerWithTitle.kt

@@ -32,6 +32,7 @@ import ua.acclorite.book_story.presentation.components.CustomIconButton
  */
 @Composable
 fun ColorPickerWithTitle(
+    modifier: Modifier = Modifier,
     value: Color,
     title: String,
     horizontalPadding: Dp = 18.dp,
@@ -42,7 +43,7 @@ fun ColorPickerWithTitle(
     var color by remember { mutableStateOf(value) }
 
     Column(
-        Modifier
+        modifier
             .fillMaxWidth()
             .padding(vertical = verticalPadding, horizontal = horizontalPadding)
     ) {

app/src/main/java/ua/acclorite/book_story/presentation/screens/settings/components/SegmentedButtonWithTitle.kt

@@ -6,7 +6,6 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.shape.RoundedCornerShape
-import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.SegmentedButton
 import androidx.compose.material3.SegmentedButtonDefaults
 import androidx.compose.material3.SingleChoiceSegmentedButtonRow
@@ -19,12 +18,12 @@ import androidx.compose.ui.unit.dp
 import ua.acclorite.book_story.domain.model.ButtonItem
 import ua.acclorite.book_story.presentation.components.CategoryTitle
 
-@OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun SegmentedButtonWithTitle(
+    modifier: Modifier = Modifier,
     title: String,
     buttons: List<ButtonItem>,
-    enabled: Boolean,
+    locked: Boolean,
     horizontalPadding: Dp = 18.dp,
     verticalPadding: Dp = 8.dp,
     onClick: (ButtonItem) -> Unit
@@ -32,7 +31,7 @@ fun SegmentedButtonWithTitle(
     val colors = SegmentedButtonDefaults.colors()
 
     Column(
-        Modifier
+        modifier
             .fillMaxWidth()
             .padding(horizontal = horizontalPadding, vertical = verticalPadding)
     ) {
@@ -43,7 +42,7 @@ fun SegmentedButtonWithTitle(
         SingleChoiceSegmentedButtonRow {
             buttons.forEachIndexed { index, buttonItem ->
                 SegmentedButton(
-                    enabled = enabled,
+                    enabled = locked,
                     selected = buttonItem.selected,
                     onClick = { onClick(buttonItem) },
                     shape = when (index) {
@@ -60,9 +59,12 @@ fun SegmentedButtonWithTitle(
                         else -> RoundedCornerShape(0)
                     },
                     colors = SegmentedButtonDefaults.colors(
-                        disabledInactiveBorderColor = colors.disabledActiveBorderColor,
+                        disabledInactiveBorderColor = colors.activeBorderColor,
-                        disabledInactiveContentColor = colors.disabledActiveContentColor,
+                        disabledInactiveContentColor = colors.inactiveContentColor,
-                        disabledActiveContainerColor = colors.activeContainerColor.copy(0.12f),
+                        disabledActiveContainerColor = colors.activeContainerColor,
+                        disabledActiveContentColor = colors.activeContentColor,
+                        disabledInactiveContainerColor = colors.inactiveContainerColor,
+                        disabledActiveBorderColor = colors.activeBorderColor,
                     ),
                     label = {
                         Text(

app/src/main/java/ua/acclorite/book_story/presentation/screens/settings/nested/appearance/AppearanceSettings.kt

@@ -8,7 +8,6 @@ import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.LargeTopAppBar
 import androidx.compose.material3.MaterialTheme
@@ -16,26 +15,37 @@ import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.material3.TopAppBarDefaults
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 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
 import ua.acclorite.book_story.R
 import ua.acclorite.book_story.domain.model.ButtonItem
 import ua.acclorite.book_story.presentation.components.CategoryTitle
 import ua.acclorite.book_story.presentation.components.GoBackButton
+import ua.acclorite.book_story.presentation.components.collapsibleScrollBehaviorWithLazyListState
 import ua.acclorite.book_story.presentation.data.MainEvent
 import ua.acclorite.book_story.presentation.data.MainViewModel
 import ua.acclorite.book_story.presentation.data.Navigator
 import ua.acclorite.book_story.presentation.screens.settings.components.ColorPickerWithTitle
 import ua.acclorite.book_story.presentation.screens.settings.components.SegmentedButtonWithTitle
 import ua.acclorite.book_story.presentation.screens.settings.nested.appearance.components.theme_switcher.AppearanceSettingsThemeSwitcher
+import ua.acclorite.book_story.presentation.ui.BookStoryTheme
 import ua.acclorite.book_story.presentation.ui.DarkTheme
+import ua.acclorite.book_story.presentation.ui.PureDark
+import ua.acclorite.book_story.presentation.ui.SlidingTransition
 import ua.acclorite.book_story.presentation.ui.Theme
 import ua.acclorite.book_story.presentation.ui.ThemeContrast
+import ua.acclorite.book_story.presentation.ui.isDark
+import ua.acclorite.book_story.presentation.ui.isPureDark
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -43,19 +53,21 @@ fun AppearanceSettings(
     mainViewModel: MainViewModel,
     navigator: Navigator
 ) {
-    val listState = rememberLazyListState()
+    val scrollState = TopAppBarDefaults.collapsibleScrollBehaviorWithLazyListState()
-    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior(
-        canScroll = {
-            listState.canScrollForward || listState.canScrollBackward
-        }
-    )
 
     val state by mainViewModel.state.collectAsState()
+    var themeContrastTheme by remember { mutableStateOf(state.theme!!) }
+
+    LaunchedEffect(state.theme) {
+        if (themeContrastTheme != state.theme && state.theme != Theme.DYNAMIC) {
+            themeContrastTheme = state.theme!!
+        }
+    }
 
     Scaffold(
         Modifier
             .fillMaxSize()
-            .nestedScroll(scrollBehavior.nestedScrollConnection)
+            .nestedScroll(scrollState.first.nestedScrollConnection)
             .windowInsetsPadding(WindowInsets.navigationBars),
         containerColor = MaterialTheme.colorScheme.surface,
         topBar = {
@@ -66,7 +78,7 @@ fun AppearanceSettings(
                 navigationIcon = {
                     GoBackButton(navigator = navigator)
                 },
-                scrollBehavior = scrollBehavior,
+                scrollBehavior = scrollState.first,
                 colors = TopAppBarDefaults.largeTopAppBarColors(
                     containerColor = MaterialTheme.colorScheme.surface,
                     scrolledContainerColor = MaterialTheme.colorScheme.surfaceContainer
@@ -78,25 +90,35 @@ fun AppearanceSettings(
             Modifier
                 .fillMaxSize()
                 .padding(top = paddingValues.calculateTopPadding()),
-            state = listState
+            state = scrollState.second
         ) {
             item {
-                Spacer(modifier = Modifier.height(16.dp))
+                Spacer(
+                    modifier = Modifier
+                        .animateItem()
+                        .height(16.dp)
+                )
             }
             item {
                 CategoryTitle(
+                    modifier = Modifier.animateItem(),
                     title = stringResource(id = R.string.theme_appearance_settings),
                     color = MaterialTheme.colorScheme.primary
                 )
             }
             item {
-                Spacer(modifier = Modifier.height(8.dp))
+                Spacer(
+                    modifier = Modifier
+                        .animateItem()
+                        .height(8.dp)
+                )
             }
 
             item {
                 SegmentedButtonWithTitle(
+                    modifier = Modifier.animateItem(),
                     title = stringResource(id = R.string.dark_theme_option),
-                    enabled = true,
+                    locked = true,
                     buttons = DarkTheme.entries.map {
                         ButtonItem(
                             it.toString(),
@@ -119,9 +141,29 @@ fun AppearanceSettings(
             }
 
             item {
+                AppearanceSettingsThemeSwitcher(
+                    modifier = Modifier.animateItem(),
+                    mainViewModel = mainViewModel
+                )
+            }
+
+            item {
+                BookStoryTheme(
+                    theme = themeContrastTheme,
+                    isDark = state.darkTheme!!.isDark(),
+                    isPureDark = state.pureDark!!.isPureDark(context = LocalContext.current),
+                    themeContrast = state.themeContrast!!
+                ) {
+                    SlidingTransition(
+                        modifier = Modifier.animateItem(
+                            fadeInSpec = null,
+                            fadeOutSpec = null
+                        ),
+                        visible = state.theme != Theme.DYNAMIC,
+                    ) {
                         SegmentedButtonWithTitle(
                             title = stringResource(id = R.string.theme_contrast_option),
-                    enabled = state.theme != Theme.DYNAMIC,
+                            locked = state.theme != Theme.DYNAMIC,
                             buttons = ThemeContrast.entries.map {
                                 ButtonItem(
                                     it.toString(),
@@ -142,26 +184,63 @@ fun AppearanceSettings(
                             )
                         }
                     }
-
+                }
-            item {
-                AppearanceSettingsThemeSwitcher(mainViewModel = mainViewModel)
             }
 
             item {
-                Spacer(modifier = Modifier.height(22.dp))
+                SlidingTransition(
-            }
+                    modifier = Modifier.animateItem(
-            item {
+                        fadeInSpec = null,
-                CategoryTitle(
+                        fadeOutSpec = null
-                    title = stringResource(id = R.string.colors_appearance_settings),
+                    ),
-                    color = MaterialTheme.colorScheme.primary
+                    visible = state.darkTheme!!.isDark(),
+                ) {
+                    SegmentedButtonWithTitle(
+                        title = stringResource(id = R.string.pure_dark_option),
+                        locked = true,
+                        buttons = PureDark.entries.map {
+                            ButtonItem(
+                                it.toString(),
+                                when (it) {
+                                    PureDark.OFF -> stringResource(id = R.string.pure_dark_off)
+                                    PureDark.ON -> stringResource(id = R.string.pure_dark_on)
+                                    PureDark.SAVER -> stringResource(id = R.string.pure_dark_power_saver)
+                                },
+                                MaterialTheme.typography.labelLarge,
+                                it == state.pureDark
                             )
                         }
+                    ) {
+                        mainViewModel.onEvent(
+                            MainEvent.OnChangePureDark(
+                                it.id
+                            )
+                        )
+                    }
+                }
+            }
+
             item {
-                Spacer(modifier = Modifier.height(8.dp))
+                Spacer(
+                    modifier = Modifier
+                        .animateItem()
+                        .height(22.dp)
+                )
+                CategoryTitle(
+                    title = stringResource(id = R.string.colors_appearance_settings),
+                    color = MaterialTheme.colorScheme.primary,
+                    modifier = Modifier.animateItem()
+                )
+                Spacer(
+                    modifier = Modifier
+                        .animateItem()
+                        .height(8.dp)
+                )
             }
 
             item {
                 ColorPickerWithTitle(
+                    modifier = Modifier.animateItem(),
                     value = Color(state.backgroundColor!!.toULong()),
                     title = stringResource(id = R.string.background_color_option),
                     onValueChange = {
@@ -175,6 +254,7 @@ fun AppearanceSettings(
             }
             item {
                 ColorPickerWithTitle(
+                    modifier = Modifier.animateItem(),
                     value = Color(state.fontColor!!.toULong()),
                     title = stringResource(id = R.string.font_color_option),
                     onValueChange = {
@@ -187,7 +267,13 @@ fun AppearanceSettings(
                 )
             }
 
-            item { Spacer(modifier = Modifier.height(48.dp)) }
+            item {
+                Spacer(
+                    modifier = Modifier
+                        .animateItem()
+                        .height(48.dp)
+                )
+            }
         }
     }
 }

app/src/main/java/ua/acclorite/book_story/presentation/screens/settings/nested/appearance/components/theme_switcher/AppearanceSettingsThemeSwitcher.kt

@@ -5,6 +5,7 @@ import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.Spacer
 import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.height
+import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.lazy.LazyRow
 import androidx.compose.foundation.lazy.itemsIndexed
@@ -13,7 +14,9 @@ import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.remember
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import ua.acclorite.book_story.R
 import ua.acclorite.book_story.domain.util.Constants
@@ -22,13 +25,16 @@ import ua.acclorite.book_story.presentation.data.MainEvent
 import ua.acclorite.book_story.presentation.data.MainViewModel
 import ua.acclorite.book_story.presentation.ui.Theme
 import ua.acclorite.book_story.presentation.ui.isDark
+import ua.acclorite.book_story.presentation.ui.isPureDark
 
 /**
  * Theme switcher.
  */
 @Composable
 fun AppearanceSettingsThemeSwitcher(
-    mainViewModel: MainViewModel
+    modifier: Modifier = Modifier,
+    mainViewModel: MainViewModel,
+    verticalPadding: Dp = 8.dp
 ) {
     val state by mainViewModel.state.collectAsState()
     val themes = remember {
@@ -37,10 +43,10 @@ fun AppearanceSettingsThemeSwitcher(
     }
 
     Column(
-        Modifier
+        modifier
             .fillMaxWidth()
+            .padding(vertical = verticalPadding)
     ) {
-        Spacer(modifier = Modifier.height(8.dp))
         CategoryTitle(
             title = stringResource(id = R.string.app_theme_option)
         )
@@ -60,6 +66,7 @@ fun AppearanceSettingsThemeSwitcher(
                     theme = themeEntry,
                     darkTheme = state.darkTheme!!.isDark(),
                     themeContrast = state.themeContrast!!,
+                    isPureDark = state.pureDark!!.isPureDark(context = LocalContext.current),
                     selected = state.theme == themeEntry.first
                 ) {
                     mainViewModel.onEvent(MainEvent.OnChangeTheme(themeEntry.first.toString()))

app/src/main/java/ua/acclorite/book_story/presentation/screens/settings/nested/appearance/components/theme_switcher/AppearanceSettingsThemeSwitcherItem.kt

@@ -45,11 +45,17 @@ import ua.acclorite.book_story.presentation.ui.animatedColorScheme
 fun AppearanceSettingsThemeSwitcherItem(
     theme: Pair<Theme, UIText>,
     darkTheme: Boolean,
+    isPureDark: Boolean,
     themeContrast: ThemeContrast,
     selected: Boolean,
     onClick: () -> Unit
 ) {
-    val colorScheme = animatedColorScheme(theme.first, darkTheme, themeContrast)
+    val colorScheme = animatedColorScheme(
+        theme.first,
+        darkTheme,
+        isPureDark,
+        themeContrast
+    )
 
     Column(
         modifier = Modifier.fillMaxWidth(),

app/src/main/java/ua/acclorite/book_story/presentation/screens/settings/nested/general/GeneralSettings.kt

@@ -8,7 +8,6 @@ import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.LargeTopAppBar
 import androidx.compose.material3.MaterialTheme
@@ -26,6 +25,7 @@ import ua.acclorite.book_story.R
 import ua.acclorite.book_story.domain.model.ButtonItem
 import ua.acclorite.book_story.domain.util.Constants
 import ua.acclorite.book_story.presentation.components.GoBackButton
+import ua.acclorite.book_story.presentation.components.collapsibleScrollBehaviorWithLazyListState
 import ua.acclorite.book_story.presentation.data.MainEvent
 import ua.acclorite.book_story.presentation.data.MainViewModel
 import ua.acclorite.book_story.presentation.data.Navigator
@@ -37,19 +37,13 @@ fun GeneralSettings(
     mainViewModel: MainViewModel,
     navigator: Navigator
 ) {
-    val listState = rememberLazyListState()
+    val scrollState = TopAppBarDefaults.collapsibleScrollBehaviorWithLazyListState()
-    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior(
-        canScroll = {
-            listState.canScrollForward || listState.canScrollBackward
-        }
-    )
-
     val state by mainViewModel.state.collectAsState()
 
     Scaffold(
         Modifier
             .fillMaxSize()
-            .nestedScroll(scrollBehavior.nestedScrollConnection)
+            .nestedScroll(scrollState.first.nestedScrollConnection)
             .windowInsetsPadding(WindowInsets.navigationBars),
         containerColor = MaterialTheme.colorScheme.surface,
         topBar = {
@@ -60,7 +54,7 @@ fun GeneralSettings(
                 navigationIcon = {
                     GoBackButton(navigator = navigator)
                 },
-                scrollBehavior = scrollBehavior,
+                scrollBehavior = scrollState.first,
                 colors = TopAppBarDefaults.largeTopAppBarColors(
                     containerColor = MaterialTheme.colorScheme.surface,
                     scrolledContainerColor = MaterialTheme.colorScheme.surfaceContainer
@@ -72,7 +66,7 @@ fun GeneralSettings(
             Modifier
                 .fillMaxSize()
                 .padding(top = paddingValues.calculateTopPadding()),
-            state = listState
+            state = scrollState.second
         ) {
             item {
                 Spacer(modifier = Modifier.height(8.dp))

app/src/main/java/ua/acclorite/book_story/presentation/screens/settings/nested/reader/ReaderSettings.kt

@@ -8,7 +8,6 @@ import androidx.compose.foundation.layout.navigationBars
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.lazy.LazyColumn
-import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.LargeTopAppBar
 import androidx.compose.material3.MaterialTheme
@@ -29,6 +28,7 @@ import ua.acclorite.book_story.domain.model.ButtonItem
 import ua.acclorite.book_story.domain.util.Constants
 import ua.acclorite.book_story.presentation.components.CategoryTitle
 import ua.acclorite.book_story.presentation.components.GoBackButton
+import ua.acclorite.book_story.presentation.components.collapsibleScrollBehaviorWithLazyListState
 import ua.acclorite.book_story.presentation.data.MainEvent
 import ua.acclorite.book_story.presentation.data.MainViewModel
 import ua.acclorite.book_story.presentation.data.Navigator
@@ -42,12 +42,7 @@ fun ReaderSettings(
     mainViewModel: MainViewModel,
     navigator: Navigator
 ) {
-    val listState = rememberLazyListState()
+    val scrollState = TopAppBarDefaults.collapsibleScrollBehaviorWithLazyListState()
-    val scrollBehavior = TopAppBarDefaults.exitUntilCollapsedScrollBehavior(
-        canScroll = {
-            listState.canScrollForward || listState.canScrollBackward
-        }
-    )
 
     val state by mainViewModel.state.collectAsState()
     val fontFamily = remember(state.fontFamily) {
@@ -59,7 +54,7 @@ fun ReaderSettings(
     Scaffold(
         Modifier
             .fillMaxSize()
-            .nestedScroll(scrollBehavior.nestedScrollConnection)
+            .nestedScroll(scrollState.first.nestedScrollConnection)
             .windowInsetsPadding(WindowInsets.navigationBars),
         containerColor = MaterialTheme.colorScheme.surface,
         topBar = {
@@ -70,7 +65,7 @@ fun ReaderSettings(
                 navigationIcon = {
                     GoBackButton(navigator = navigator)
                 },
-                scrollBehavior = scrollBehavior,
+                scrollBehavior = scrollState.first,
                 colors = TopAppBarDefaults.largeTopAppBarColors(
                     containerColor = MaterialTheme.colorScheme.surface,
                     scrolledContainerColor = MaterialTheme.colorScheme.surfaceContainer
@@ -82,7 +77,7 @@ fun ReaderSettings(
             Modifier
                 .fillMaxSize()
                 .padding(top = paddingValues.calculateTopPadding()),
-            state = listState
+            state = scrollState.second
         ) {
             item {
                 Spacer(modifier = Modifier.height(16.dp))

app/src/main/java/ua/acclorite/book_story/presentation/ui/Color.kt

@@ -8,6 +8,7 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.Immutable
 import androidx.compose.ui.platform.LocalContext
 import ua.acclorite.book_story.presentation.ui.theme.aquaTheme
+import ua.acclorite.book_story.presentation.ui.theme.blackTheme
 import ua.acclorite.book_story.presentation.ui.theme.blueTheme
 import ua.acclorite.book_story.presentation.ui.theme.greenTheme
 import ua.acclorite.book_story.presentation.ui.theme.pinkTheme
@@ -43,49 +44,61 @@ fun String.toTheme(): Theme {
  */
 @SuppressLint("NewApi")
 @Composable
-fun colorScheme(theme: Theme, darkTheme: Boolean, themeContrast: ThemeContrast): ColorScheme {
+fun colorScheme(
-    when (theme) {
+    theme: Theme,
+    darkTheme: Boolean,
+    isPureDark: Boolean,
+    themeContrast: ThemeContrast
+): ColorScheme {
+    val colorScheme = when (theme) {
         Theme.DYNAMIC -> {
             /* Dynamic Theme */
-            return if (darkTheme)
+            if (darkTheme) {
                 dynamicDarkColorScheme(LocalContext.current)
-            else
+            } else {
                 dynamicLightColorScheme(LocalContext.current)
             }
+        }
 
         Theme.BLUE -> {
             /* Blue Theme */
-            return blueTheme(isDark = darkTheme, themeContrast = themeContrast)
+            blueTheme(isDark = darkTheme, themeContrast = themeContrast)
         }
 
         Theme.PURPLE -> {
             /* Purple Theme */
-            return purpleTheme(isDark = darkTheme, themeContrast = themeContrast)
+            purpleTheme(isDark = darkTheme, themeContrast = themeContrast)
         }
 
         Theme.GREEN -> {
             /* Green Theme */
-            return greenTheme(isDark = darkTheme, themeContrast = themeContrast)
+            greenTheme(isDark = darkTheme, themeContrast = themeContrast)
         }
 
         Theme.PINK -> {
             /* Pink Theme */
-            return pinkTheme(isDark = darkTheme, themeContrast = themeContrast)
+            pinkTheme(isDark = darkTheme, themeContrast = themeContrast)
         }
 
         Theme.YELLOW -> {
             /* Yellow Theme */
-            return yellowTheme(isDark = darkTheme, themeContrast = themeContrast)
+            yellowTheme(isDark = darkTheme, themeContrast = themeContrast)
         }
 
         Theme.RED -> {
             /* Red Theme */
-            return redTheme(isDark = darkTheme, themeContrast = themeContrast)
+            redTheme(isDark = darkTheme, themeContrast = themeContrast)
         }
 
         Theme.AQUA -> {
             /* Aqua Theme */
-            return aquaTheme(isDark = darkTheme, themeContrast = themeContrast)
+            aquaTheme(isDark = darkTheme, themeContrast = themeContrast)
         }
     }
+
+    return if (isPureDark && darkTheme) {
+        blackTheme(initialTheme = colorScheme)
+    } else {
+        colorScheme
+    }
 }

app/src/main/java/ua/acclorite/book_story/presentation/ui/Theme.kt

@@ -1,7 +1,9 @@
 package ua.acclorite.book_story.presentation.ui
 
 import android.app.Activity
+import android.content.Context
 import android.os.Build
+import android.os.PowerManager
 import androidx.compose.animation.animateColorAsState
 import androidx.compose.animation.core.tween
 import androidx.compose.foundation.isSystemInDarkTheme
@@ -16,6 +18,13 @@ import androidx.compose.ui.graphics.toArgb
 import androidx.compose.ui.platform.LocalView
 import androidx.core.view.WindowCompat
 
+@Immutable
+enum class PureDark {
+    OFF,
+    ON,
+    SAVER
+}
+
 @Immutable
 enum class ThemeContrast {
     STANDARD,
@@ -34,6 +43,10 @@ fun String.toDarkTheme(): DarkTheme {
     return DarkTheme.valueOf(this)
 }
 
+fun String.toPureDark(): PureDark {
+    return PureDark.valueOf(this)
+}
+
 fun String.toThemeContrast(): ThemeContrast {
     return ThemeContrast.valueOf(this)
 }
@@ -48,9 +61,21 @@ fun DarkTheme.isDark(): Boolean {
 }
 
 @Composable
-fun BooksHistoryResurrectionTheme(
+fun PureDark.isPureDark(context: Context): Boolean {
+    val powerManager = context.getSystemService(Context.POWER_SERVICE) as PowerManager
+
+    return when (this) {
+        PureDark.OFF -> false
+        PureDark.ON -> true
+        PureDark.SAVER -> powerManager.isPowerSaveMode
+    }
+}
+
+@Composable
+fun BookStoryTheme(
     theme: Theme,
     isDark: Boolean,
+    isPureDark: Boolean,
     themeContrast: ThemeContrast,
     content: @Composable () -> Unit
 ) {
@@ -76,6 +101,7 @@ fun BooksHistoryResurrectionTheme(
         theme = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) theme
         else if (theme != Theme.DYNAMIC) theme else Theme.BLUE,
         darkTheme = isDark,
+        isPureDark = isPureDark,
         themeContrast = themeContrast
     )
     val animatedColorScheme = animateColorScheme(targetColorScheme = colorScheme)
@@ -143,11 +169,13 @@ private fun animateColorScheme(targetColorScheme: ColorScheme): ColorScheme {
 fun animatedColorScheme(
     theme: Theme,
     isDark: Boolean,
+    isPureDark: Boolean,
     themeContrast: ThemeContrast
 ): ColorScheme {
     val colorScheme = colorScheme(
         theme = theme,
         darkTheme = isDark,
+        isPureDark = isPureDark,
         themeContrast = themeContrast
     )
 

app/src/main/java/ua/acclorite/book_story/presentation/ui/Transitions.kt

@@ -5,7 +5,9 @@ import androidx.compose.animation.core.tween
 import androidx.compose.animation.fadeIn
 import androidx.compose.animation.fadeOut
 import androidx.compose.animation.slideInHorizontally
+import androidx.compose.animation.slideInVertically
 import androidx.compose.animation.slideOutHorizontally
+import androidx.compose.animation.slideOutVertically
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Modifier
 
@@ -13,20 +15,20 @@ object Transitions {
     val DefaultTransitionIn = fadeIn(tween(300))
     val DefaultTransitionOut = fadeOut(tween(300))
 
-    val FadeTransitionIn = fadeIn(tween(300))
+    val FadeTransitionIn = fadeIn(tween(350))
-    val FadeTransitionOut = fadeOut(tween(50))
+    val FadeTransitionOut = fadeOut(tween(100))
 
-    val SlidingTransitionIn = fadeIn(tween(300)) +
+    val SlidingTransitionIn = fadeIn(tween(350)) +
-            slideInHorizontally(tween(300)) { it / 16 }
+            slideInHorizontally(tween(350)) { it / 16 }
 
-    val BackSlidingTransitionIn = fadeIn(tween(300)) +
+    val BackSlidingTransitionIn = fadeIn(tween(350)) +
-            slideInHorizontally(tween(300)) { -it / 16 }
+            slideInHorizontally(tween(350)) { -it / 16 }
 
-    val SlidingTransitionOut = fadeOut(tween(200)) +
+    val SlidingTransitionOut = fadeOut(tween(250)) +
-            slideOutHorizontally(tween(300)) { -it / 16 }
+            slideOutHorizontally(tween(350)) { -it / 16 }
 
-    val BackSlidingTransitionOut = fadeOut(tween(200)) +
+    val BackSlidingTransitionOut = fadeOut(tween(250)) +
-            slideOutHorizontally(tween(300)) { it / 16 }
+            slideOutHorizontally(tween(350)) { it / 16 }
 }
 
 @Composable
@@ -45,6 +47,24 @@ fun DefaultTransition(
     }
 }
 
+@Composable
+fun SlidingTransition(
+    visible: Boolean,
+    modifier: Modifier = Modifier,
+    content: @Composable () -> Unit
+) {
+    AnimatedVisibility(
+        visible = visible,
+        modifier = modifier,
+        enter = slideInVertically(tween(300)) { -it / 10 } +
+                fadeIn(tween(300)),
+        exit = slideOutVertically(tween(150)) { -it / 10 } +
+                fadeOut(tween(100)),
+    ) {
+        content()
+    }
+}
+
 
 
 

app/src/main/java/ua/acclorite/book_story/presentation/ui/theme/BlackTheme.kt

@@ -0,0 +1,63 @@
+package ua.acclorite.book_story.presentation.ui.theme
+
+import androidx.compose.material3.ColorScheme
+import androidx.compose.runtime.Composable
+import androidx.compose.ui.graphics.Color
+
+@Composable
+fun blackTheme(initialTheme: ColorScheme): ColorScheme {
+    return initialTheme.copy(
+        surface = initialTheme.surface.copy {
+            val darker = 3f
+            it.copy(
+                red = it.red / darker,
+                green = it.green / darker,
+                blue = it.blue / darker
+            )
+        },
+        surfaceContainer = initialTheme.surfaceContainer.copy {
+            val darker = 1.95f
+            it.copy(
+                red = it.red / darker,
+                green = it.green / darker,
+                blue = it.blue / darker
+            )
+        },
+        surfaceContainerLowest = initialTheme.surfaceContainerLowest.copy {
+            val darker = 1.95f
+            it.copy(
+                red = it.red / darker,
+                green = it.green / darker,
+                blue = it.blue / darker
+            )
+        },
+        surfaceContainerLow = initialTheme.surfaceContainerLow.copy {
+            val darker = 1.95f
+            it.copy(
+                red = it.red / darker,
+                green = it.green / darker,
+                blue = it.blue / darker
+            )
+        },
+        surfaceContainerHigh = initialTheme.surfaceContainerHigh.copy {
+            val darker = 1.95f
+            it.copy(
+                red = it.red / darker,
+                green = it.green / darker,
+                blue = it.blue / darker
+            )
+        },
+        surfaceContainerHighest = initialTheme.surfaceContainerHighest.copy {
+            val darker = 1.95f
+            it.copy(
+                red = it.red / darker,
+                green = it.green / darker,
+                blue = it.blue / darker
+            )
+        },
+    )
+}
+
+private fun Color.copy(calculation: (Color) -> Color): Color {
+    return calculation(this)
+}

app/src/main/res/values-night/themes.xml

@@ -3,7 +3,7 @@
 
     <style name="Theme.Start.Splash" parent="Theme.SplashScreen">
         <item name="android:forceDarkAllowed" tools:ignore="NewApi">false</item>
-        <item name="postSplashScreenTheme">@style/Theme.BooksHistoryResurrection</item>
+        <item name="postSplashScreenTheme">@style/Theme.BookStory</item>
 
         <item name="windowSplashScreenBackground">@color/splash_bg_dark</item>
         <item name="windowSplashScreenAnimatedIcon">@drawable/splash_icon</item>

app/src/main/res/values-uk/strings.xml

@@ -1,7 +1,12 @@
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Basic Strings -->
     <string name="app_name">Історія Книги</string>
 
+    <!-- Book sources -->
+    <string-array name="book_sites" tools:ignore="InconsistentArrays">
+        <item>Укрліб|https://www.ukrlib.com.ua</item>
+    </string-array>
+
     <!-- Screens -->
     <string name="library_screen">Бібліотека</string>
     <string name="history_screen">Історія</string>
@@ -108,7 +113,7 @@
     <string name="continue_read">Продовжити</string>
     <string name="never">Ніколи</string>
     <string name="go_back">Назад</string>
-    <string name="move_to_read">Перемістити цю книгу в \"Прочитано\"</string>
+    <string name="move_to_read">Перемістити цю книгу в «Прочитано»</string>
     <string name="back_to_library">Назад в Бібліотеку</string>
     <string name="undo">Скасувати</string>
     <string name="copy">Копіювати</string>
@@ -160,6 +165,7 @@
     <!-- Settings options -->
     <string name="language_option">Мова застосунка</string>
     <string name="dark_theme_option">Темна тема</string>
+    <string name="pure_dark_option">Суцільна темрява (ОЛЕД)</string>
     <string name="theme_contrast_option">Контрастність теми</string>
     <string name="app_theme_option">Тема застосунка</string>
     <string name="font_family_option">Сімейство шрифтів</string>
@@ -181,6 +187,11 @@
     <string name="dark_theme_on">Ввімкнена</string>
     <string name="dark_theme_follow_system">Системна</string>
 
+    <!-- Pure Dark properties -->
+    <string name="pure_dark_off">Вимкнена</string>
+    <string name="pure_dark_on">Ввімкнена</string>
+    <string name="pure_dark_power_saver">Економія</string>
+
     <!-- Theme Contrast properties -->
     <string name="theme_contrast_standard">Типова</string>
     <string name="theme_contrast_medium">Середня</string>
@@ -257,10 +268,106 @@
     <string name="slava_ukraini_option_desc">Героям Слава! 🐉</string>
 
     <!-- Help -->
-    <string name="clickable_note_1">Будь ласка, зверніть увагу, що на</string>
+    <string name="help_clickable_note_1">Будь ласка, зверніть увагу, що на</string>
-    <string name="clickable_note_2">такий виділений текст</string>
+    <string name="help_clickable_note_2">такий виділений текст</string>
-    <string name="clickable_note_3">можна натиснути.</string>
+    <string name="help_clickable_note_3">
-    <string name="clickable_note_action">На мене можна натиснути!</string>
+        можна натиснути.
+        Також ви можете приховати цю примітку, натиснувши на іконку, спробуйте!
+    </string>
+    <string name="help_clickable_note_action">На мене можна натиснути!</string>
+
+    <string name="help_title_how_to_find_books">Як мені знайти та завантажити книги?</string>
+    <string name="help_desc_how_to_find_books">
+        Ви можете спробувати знайти бажані книги використовуючи сайти з наведеної примітки
+        або ви можете використати текстове поле, щоб шукати книги в інтернеті.
+    </string>
+    <string name="help_field_placeholder">Назва книги</string>
+    <string name="help_field_support">Корисні сайти з книгами:</string>
+    <string name="help_field_error">Назва книги не має бути порожньою</string>
+
+    <string name="help_title_how_to_add_books">Як мені додати книги в Бібліотеку?</string>
+    <string name="help_desc_how_to_add_books_1">Перейдіть в</string>
+    <string name="help_desc_how_to_add_books_2">Огляд</string>
+    <string name="help_desc_how_to_add_books_3">
+        Якщо ви не бачите завантажені книги, спробуйте оновити список, потягнувши його вниз.
+        Переконайтеся, що ваші книги має підтримуваний формат файлу.
+        Потім натисніть на книгу, щоб вибрати її, або утримуйте, щоб показати її місцезнаходження.
+        Після того, як ви вибрали всі потрібні книги, натисніть на іконку з галочкою у верхньому правому куті,
+        зачекайте поки всі книги завантажаться, і натисніть «Додати».
+        Тепер ви повинні побачити всі додані вами книги в
+    </string>
+    <string name="help_desc_how_to_add_books_4">Бібліотеці</string>
+
+    <string name="help_title_how_to_customize_app">Як мені налаштувати застосунок?</string>
+    <string name="help_desc_how_to_customize_app_1">Перейдіть в</string>
+    <string name="help_desc_how_to_customize_app_2">Налаштування</string>
+    <string name="help_desc_how_to_customize_app_3">
+        Ви можете зробити це з екранів Бібліотека, Історія та Огляд
+        натиснувши на три крапки в правому верхньому кутку і вибравши
+        «Налаштування» з випадаючого списку.
+        Після цього ви побачите всі доступні налаштування для цього застосунку.
+        Не соромтеся експерементувати з ними!
+    </string>
+
+    <string name="help_title_how_to_move_or_delete_books">Як мені перемістити або видалити книги?</string>
+    <string name="help_desc_how_to_move_or_delete_books_1">Перейдіть в</string>
+    <string name="help_desc_how_to_move_or_delete_books_2">Бібліотеку</string>
+    <string name="help_desc_how_to_move_or_delete_books_3">
+        Утримуйте обкладинку першої книги, поки вона не буде вибрана,
+        тепер ви можете просто натиснути на всі обкладинки книг, які ви хочете вибрати.
+        Ви також можете вибрати книги в декількох категоріях.
+        Після того, як ви вибрали всі бажані книги, ви можете натиснути на іконку зі стрілкою,
+        щоб перемістити та на іконку кошика, щоб видалити книги.
+    </string>
+
+    <string name="help_title_how_to_edit_book">Як мені відредагувати книгу?</string>
+    <string name="help_desc_how_to_edit_book_1">Перейдіть в</string>
+    <string name="help_desc_how_to_edit_book_2">Бібліотеку</string>
+    <string name="help_desc_how_to_edit_book_3">
+        та натісніть на обкладинку книги, щоб побачити подробиці книги.
+        Тепер ви можете утримувати назву книги, щоб відредагувати назву
+        або обкладинку, щоб змінити або видалити обкладинку.
+    </string>
+
+    <string name="help_title_how_to_read_book">Як мені читати книгу?</string>
+    <string name="help_desc_how_to_read_book_1">Перейдіть в</string>
+    <string name="help_desc_how_to_read_book_2">Бібліотеку</string>
+    <string name="help_desc_how_to_read_book_3">
+        Щоб почати читати книгу, натисніть на кнопку в правому нижньому куті книги, яку ви хочете читати.
+        Також ви можете почати читати книгу, натиснувши на її обкладинку, щоб побачити подробиці книги,
+        а потім натиснути кнопку в правому нижньому куті.
+        Прогрес буде збережено і відновлено автоматично.
+        Ви можете показати верхню і нижню панелі, натиснувши в будь-якому місці екрану.
+        Натиснувши на назву книги, ви перейдете до подробиць книги.
+        Натиснувши на іконку з шестернею, ви побачите налаштування Читача.
+        Ви можете використовувати повзунок нижньої панелі для зміни прогресу.
+    </string>
+
+    <string name="help_title_how_to_customize_reader">Як мені налаштувати Читач?</string>
+    <string name="help_desc_how_to_customize_reader_1">
+        Почніть читати книгу(див: Як мені читати книгу?),
+        після цього покажіть верхню і нижню панелі, натиснувши в будь-якому місці екрану.
+        Потім натисніть на іконку з шестернею в правому верхньому кутку.
+        Це покаже всі налаштування Читача.
+        Другий спосіб - перейти в
+    </string>
+    <string name="help_desc_how_to_customize_reader_2">
+        Налаштування
+    </string>
+    <string name="help_desc_how_to_customize_reader_3">
+        та вибрати категорію Читач, щоб налаштувати Головні параметри,
+        або категорію Зовнішній Вигляд, щоб налаштувати параметри Кольорів.
+    </string>
+
+    <string name="help_title_how_to_update_book">Як мені оновити книгу?</string>
+    <string name="help_desc_how_to_update_book_1">Перейдіть в</string>
+    <string name="help_desc_how_to_update_book_2">Бібліотеку</string>
+    <string name="help_desc_how_to_update_book_3">
+        та натісніть на обкладинку книги, щоб побачити подробиці книги.
+        Потягніть екран вниз або натисніть на іконку оновлення у верхньому правому куті, щоб оновити книгу.
+        Якщо файл книги змінився, ви можете підтвердити і оновити книгу або скасувати оновлення.
+    </string>
+
 
     <!-- Font families -->
     <string name="default_font">За замовчуванням</string>
@@ -294,6 +401,11 @@
     <string name="app_icon_content_desc">Іконка застосунку</string>
     <string name="note_content_desc">Примітка</string>
     <string name="delete_history_element_content_desc">Видалити елемент історії</string>
+    <string name="library_content_desc">Ваша бібліотека</string>
+    <string name="history_content_desc">Історія читання</string>
+    <string name="browse_content_desc">Додавайте книги</string>
+    <string name="arrow_content_desc">Стрілка</string>
+    <string name="arrow_anim_content_desc">Анімація стрілки</string>
 
 
 </resources>

app/src/main/res/values/strings.xml

@@ -1,7 +1,9 @@
-<resources>
+<resources xmlns:tools="http://schemas.android.com/tools" tools:ignore="InconsistentArrays">
     <!-- Basic Strings -->
-    <string name="app_version" translatable="false">0.9.6</string>
+    <string name="app_version" translatable="false">0.9.7</string>
     <string name="app_name">Book\'s Story</string>
+
+    <!-- About sites -->
     <string name="releases_page" translatable="false">
         https://github.com/Acclorite/book-story/releases/latest
     </string>
@@ -18,6 +20,13 @@
         https://www.buymeacoffee.com/acclorite
     </string>
 
+    <!-- Book sources -->
+    <string-array name="book_sites">
+        <item>Anna\'s Archive|https://annas-archive.org</item>
+        <item>Project Gutenberg|https://www.gutenberg.org</item>
+        <item>Standard Ebooks|https://standardebooks.org</item>
+    </string-array>
+
     <!-- Screens -->
     <string name="library_screen">Library</string>
     <string name="history_screen">History</string>
@@ -123,7 +132,7 @@
     <string name="continue_read">Continue</string>
     <string name="never">Never</string>
     <string name="go_back">Go back</string>
-    <string name="move_to_read">Move this book to \"Already Read\"</string>
+    <string name="move_to_read">Move this book to «Already Read»</string>
     <string name="back_to_library">Back to Library</string>
     <string name="undo">Undo</string>
     <string name="copy">Copy</string>
@@ -175,6 +184,7 @@
     <!-- Settings options -->
     <string name="language_option">App language</string>
     <string name="dark_theme_option">Dark theme</string>
+    <string name="pure_dark_option">Pure dark (OLED)</string>
     <string name="theme_contrast_option">Theme contrast</string>
     <string name="app_theme_option">App theme</string>
     <string name="font_family_option">Font family</string>
@@ -196,6 +206,11 @@
     <string name="dark_theme_on">Enabled</string>
     <string name="dark_theme_follow_system">System</string>
 
+    <!-- Pure Dark properties -->
+    <string name="pure_dark_off">Disabled</string>
+    <string name="pure_dark_on">Enabled</string>
+    <string name="pure_dark_power_saver">Saver</string>
+
     <!-- Theme Contrast properties -->
     <string name="theme_contrast_standard">Standard</string>
     <string name="theme_contrast_medium">Medium</string>
@@ -272,10 +287,105 @@
     <string name="slava_ukraini_option_desc">Heroyam Slava! 🐉</string>
 
     <!-- Help -->
-    <string name="clickable_note_1">Please note, that</string>
+    <string name="help_clickable_note_1">Please note, that</string>
-    <string name="clickable_note_2">such highlighted text</string>
+    <string name="help_clickable_note_2">such highlighted text</string>
-    <string name="clickable_note_3">can be clicked.</string>
+    <string name="help_clickable_note_3">
-    <string name="clickable_note_action">I\'m clickable!</string>
+        can be clicked.
+        Also you can hide this note by clicking the icon, try it out!
+    </string>
+    <string name="help_clickable_note_action">I\'m clickable!</string>
+
+    <string name="help_title_how_to_find_books">How do I find and download books?</string>
+    <string name="help_desc_how_to_find_books">
+        You can try to find desired books using sites from provided note
+        or you can use text field to search for books online.
+    </string>
+    <string name="help_field_placeholder">Book\'s name</string>
+    <string name="help_field_support">Useful sites with books:</string>
+    <string name="help_field_error">Book\'s name should not be empty</string>
+
+    <string name="help_title_how_to_add_books">How do I add books to the Library?</string>
+    <string name="help_desc_how_to_add_books_1">Go to the</string>
+    <string name="help_desc_how_to_add_books_2">Browse</string>
+    <string name="help_desc_how_to_add_books_3">
+        If you don\'t see downloaded books try to refresh list by pulling it down.
+        Make sure your books has supported file format.
+        Then click the book to select it or hold to show it\'s location.
+        After you selected all books you want, click the checkmark icon in the upper right corner,
+        wait for all books to load and click «Add».
+        Now you should see all books you have added in the
+    </string>
+    <string name="help_desc_how_to_add_books_4">Library</string>
+
+    <string name="help_title_how_to_customize_app">How do I customize the app?</string>
+    <string name="help_desc_how_to_customize_app_1">Go to the</string>
+    <string name="help_desc_how_to_customize_app_2">Settings</string>
+    <string name="help_desc_how_to_customize_app_3">
+        You can do this from the Library, History and Browse screens
+        by clicking three dots in the upper right corner
+        and selecting «Settings» from the drop-down menu.
+        Then you will see all available settings for this app.
+        Feel free to experiment with those!
+    </string>
+
+    <string name="help_title_how_to_move_or_delete_books">How do I move or delete books?</string>
+    <string name="help_desc_how_to_move_or_delete_books_1">Go to the</string>
+    <string name="help_desc_how_to_move_or_delete_books_2">Library</string>
+    <string name="help_desc_how_to_move_or_delete_books_3">
+        Hold down the first book\'s cover image until it is selected,
+        now you can simply click all cover images of books you want to select.
+        You can also select books in multiple categories.
+        After you have chosen all desired books, you can click the arrow icon to move
+        and trash bin icon to delete books.
+    </string>
+
+    <string name="help_title_how_to_edit_book">How do I edit a book?</string>
+    <string name="help_desc_how_to_edit_book_1">Go to the</string>
+    <string name="help_desc_how_to_edit_book_2">Library</string>
+    <string name="help_desc_how_to_edit_book_3">
+        and click the book\'s cover image to see book\'s details.
+        Now you can hold down the book\'s title to edit title
+        or cover image to change or delete cover image.
+    </string>
+
+    <string name="help_title_how_to_read_book">How do I read a book?</string>
+    <string name="help_desc_how_to_read_book_1">Go to the</string>
+    <string name="help_desc_how_to_read_book_2">Library</string>
+    <string name="help_desc_how_to_read_book_3">
+        To start reading the book click the button in the bottom right corner of the book you want to read.
+        Also you can start reading the book by clicking it\'s cover image
+        to see book\'s details and then click the button in the bottom right corner.
+        The progress will be saved and restored automatically.
+        You can bring top and bottom bars by clicking anywhere on the screen.
+        By clicking the title of the book you will be transferred to the book\'s details.
+        By clicking the gear icon you will see Reader settings.
+        You can use bottom bar\'s slider to change progress.
+    </string>
+
+    <string name="help_title_how_to_customize_reader">How do I customize the Reader?</string>
+    <string name="help_desc_how_to_customize_reader_1">
+        Start reading the book(see: How do I read a book?),
+        after that bring top and bottom bars by clicking anywhere on the screen.
+        Then click the gear icon in the upper right corner.
+        This will show all Reader settings.
+        Second way is to go to the
+    </string>
+    <string name="help_desc_how_to_customize_reader_2">
+        Settings
+    </string>
+    <string name="help_desc_how_to_customize_reader_3">
+        and select Reader category to customize General settings,
+        or Appearance category to customize Colors settings.
+    </string>
+
+    <string name="help_title_how_to_update_book">How do I update a book?</string>
+    <string name="help_desc_how_to_update_book_1">Go to the</string>
+    <string name="help_desc_how_to_update_book_2">Library</string>
+    <string name="help_desc_how_to_update_book_3">
+        and click the book\'s cover image to see book\'s details.
+        Pull down the screen or click the refresh icon in the upper right corner to update the book.
+        If book\'s file changed you may confirm and update the book or cancel update.
+    </string>
 
     <!-- Font families -->
     <string name="default_font">Default</string>
@@ -309,5 +419,10 @@
     <string name="app_icon_content_desc">App icon</string>
     <string name="note_content_desc">Note</string>
     <string name="delete_history_element_content_desc">Delete history element</string>
+    <string name="library_content_desc">Your library</string>
+    <string name="history_content_desc">Reading history</string>
+    <string name="browse_content_desc">Add books</string>
+    <string name="arrow_content_desc">Arrow</string>
+    <string name="arrow_anim_content_desc">Arrow animation</string>
 
 </resources>

app/src/main/res/values/themes.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <resources xmlns:tools="http://schemas.android.com/tools">
 
-    <style name="Theme.BooksHistoryResurrection" parent="Theme.AppCompat.NoActionBar">
+    <style name="Theme.BookStory" parent="Theme.AppCompat.NoActionBar">
         <item name="android:forceDarkAllowed" tools:ignore="NewApi">false</item>
         <item name="android:windowContentTransitions">false</item>
 
@@ -12,7 +12,7 @@
 
     <style name="Theme.Start.Splash" parent="Theme.SplashScreen">
         <item name="android:forceDarkAllowed" tools:ignore="NewApi">false</item>
-        <item name="postSplashScreenTheme">@style/Theme.BooksHistoryResurrection</item>
+        <item name="postSplashScreenTheme">@style/Theme.BookStory</item>
 
         <item name="windowSplashScreenBackground">@color/splash_bg_light</item>
         <item name="windowSplashScreenAnimatedIcon">@drawable/splash_icon</item>