Improve details activity

app/src/main/kotlin/org/koitharu/kotatsu/browser/BaseBrowserActivity.kt

@@ -20,7 +20,7 @@ abstract class BaseBrowserActivity : BaseActivity<ActivityBrowserBinding>(), Bro
 
 	private lateinit var onBackPressedCallback: WebViewBackPressedCallback
 
-	final override fun onCreate(savedInstanceState: Bundle?) {
+	override fun onCreate(savedInstanceState: Bundle?) {
 		super.onCreate(savedInstanceState)
 		if (!setContentViewWebViewSafe { ActivityBrowserBinding.inflate(layoutInflater) }) {
 			return

app/src/main/kotlin/org/koitharu/kotatsu/core/image/CoilMemoryCacheKey.kt

@@ -0,0 +1,48 @@
+package org.koitharu.kotatsu.core.image
+
+import android.os.Parcel
+import android.os.Parcelable
+import android.view.View
+import androidx.collection.ArrayMap
+import coil3.memory.MemoryCache
+import coil3.request.SuccessResult
+import coil3.util.CoilUtils
+import kotlinx.parcelize.Parceler
+import kotlinx.parcelize.Parcelize
+
+@Parcelize
+class CoilMemoryCacheKey(
+	val data: MemoryCache.Key
+) : Parcelable {
+
+	companion object : Parceler<CoilMemoryCacheKey> {
+		override fun CoilMemoryCacheKey.write(parcel: Parcel, flags: Int) = with(data) {
+			parcel.writeString(key)
+			parcel.writeInt(extras.size)
+			for (entry in extras.entries) {
+				parcel.writeString(entry.key)
+				parcel.writeString(entry.value)
+			}
+		}
+
+		override fun create(parcel: Parcel): CoilMemoryCacheKey = CoilMemoryCacheKey(
+			MemoryCache.Key(
+				key = parcel.readString().orEmpty(),
+				extras = run {
+					val size = parcel.readInt()
+					val map = ArrayMap<String, String>(size)
+					repeat(size) {
+						map.put(parcel.readString(), parcel.readString())
+					}
+					map
+				},
+			),
+		)
+
+		fun from(view: View): CoilMemoryCacheKey? {
+			return (CoilUtils.result(view) as? SuccessResult)?.memoryCacheKey?.let {
+				CoilMemoryCacheKey(it)
+			}
+		}
+	}
+}

app/src/main/kotlin/org/koitharu/kotatsu/core/model/MangaSource.kt

@@ -18,6 +18,7 @@ import org.koitharu.kotatsu.core.parser.external.ExternalMangaSource
 import org.koitharu.kotatsu.core.util.ext.getDisplayName
 import org.koitharu.kotatsu.core.util.ext.getThemeColor
 import org.koitharu.kotatsu.core.util.ext.toLocale
+import org.koitharu.kotatsu.core.util.ext.toLocaleOrNull
 import org.koitharu.kotatsu.parsers.model.ContentType
 import org.koitharu.kotatsu.parsers.model.MangaParserSource
 import org.koitharu.kotatsu.parsers.model.MangaSource
@@ -80,7 +81,7 @@ tailrec fun MangaSource.unwrap(): MangaSource = if (this is MangaSourceInfo) {
 	this
 }
 
-fun MangaSource.getLocale(): Locale? = (unwrap() as? MangaParserSource)?.locale?.toLocale()
+fun MangaSource.getLocale(): Locale? = (unwrap() as? MangaParserSource)?.locale?.toLocaleOrNull()
 
 fun MangaSource.getSummary(context: Context): String? = when (val source = unwrap()) {
 	is MangaParserSource -> {

app/src/main/kotlin/org/koitharu/kotatsu/core/nav/AppRouter.kt

@@ -29,6 +29,7 @@ import org.koitharu.kotatsu.bookmarks.ui.AllBookmarksActivity
 import org.koitharu.kotatsu.browser.BrowserActivity
 import org.koitharu.kotatsu.browser.cloudflare.CloudFlareActivity
 import org.koitharu.kotatsu.core.exceptions.CloudFlareProtectedException
+import org.koitharu.kotatsu.core.image.CoilMemoryCacheKey
 import org.koitharu.kotatsu.core.model.FavouriteCategory
 import org.koitharu.kotatsu.core.model.MangaSourceInfo
 import org.koitharu.kotatsu.core.model.appUrl
@@ -180,11 +181,12 @@ class AppRouter private constructor(
 		)
 	}
 
-	fun openImage(url: String, source: MangaSource?, anchor: View? = null) {
+	fun openImage(url: String, source: MangaSource?, anchor: View? = null, preview: CoilMemoryCacheKey? = null) {
 		startActivity(
 			Intent(contextOrNull(), ImageActivity::class.java)
 				.setData(url.toUri())
-				.putExtra(KEY_SOURCE, source?.name),
+				.putExtra(KEY_SOURCE, source?.name)
+				.putExtra(KEY_PREVIEW, preview),
 			anchor?.let { scaleUpActivityOptionsOf(it) },
 		)
 	}
@@ -768,6 +770,7 @@ class AppRouter private constructor(
 		const val KEY_MANGA = "manga"
 		const val KEY_MANGA_LIST = "manga_list"
 		const val KEY_PAGES = "pages"
+		const val KEY_PREVIEW = "preview"
 		const val KEY_QUERY = "query"
 		const val KEY_READER_MODE = "reader_mode"
 		const val KEY_SORT_ORDER = "sort_order"

app/src/main/kotlin/org/koitharu/kotatsu/core/util/ext/LocaleList.kt

@@ -21,7 +21,13 @@ inline fun <T> LocaleListCompat.mapToSet(block: (Locale) -> T): Set<T> {
 
 fun LocaleListCompat.getOrThrow(index: Int) = get(index) ?: throw NoSuchElementException()
 
-fun String.toLocale() = Locale(this)
+fun String.toLocale(): Locale = Locale.forLanguageTag(this)
+
+fun String.toLocaleOrNull() = if (isEmpty()) {
+	null
+} else {
+	toLocale().takeUnless { it.displayName == this }
+}
 
 fun Locale?.getDisplayName(context: Context): String = when (this) {
 	null -> context.getString(R.string.all_languages)

app/src/main/kotlin/org/koitharu/kotatsu/details/data/MangaDetails.kt

@@ -1,5 +1,6 @@
 package org.koitharu.kotatsu.details.data
 
+import org.koitharu.kotatsu.core.model.getLocale
 import org.koitharu.kotatsu.core.model.isLocal
 import org.koitharu.kotatsu.local.domain.model.LocalManga
 import org.koitharu.kotatsu.parsers.model.Manga
@@ -7,6 +8,7 @@ import org.koitharu.kotatsu.parsers.model.MangaChapter
 import org.koitharu.kotatsu.parsers.util.ifNullOrEmpty
 import org.koitharu.kotatsu.parsers.util.nullIfEmpty
 import org.koitharu.kotatsu.reader.data.filterChapters
+import java.util.Locale
 
 data class MangaDetails(
 	private val manga: Manga,
@@ -39,6 +41,13 @@ data class MangaDetails(
 
 	fun toManga() = manga
 
+	fun getLocale(): Locale? {
+		findAppropriateLocale(chapters.keys.singleOrNull())?.let {
+			return it
+		}
+		return manga.source.getLocale()
+	}
+
 	fun filterChapters(branch: String?) = MangaDetails(
 		manga = manga.filterChapters(branch),
 		localManga = localManga?.run {
@@ -69,4 +78,16 @@ data class MangaDetails(
 		}
 		return result
 	}
+
+	private fun findAppropriateLocale(name: String?): Locale? {
+		if (name.isNullOrEmpty()) {
+			return null
+		}
+		return Locale.getAvailableLocales().find { lc ->
+			name.contains(lc.getDisplayName(lc), ignoreCase = true) ||
+				name.contains(lc.getDisplayName(Locale.ENGLISH), ignoreCase = true) ||
+				name.contains(lc.getDisplayLanguage(lc), ignoreCase = true) ||
+				name.contains(lc.getDisplayLanguage(Locale.ENGLISH), ignoreCase = true)
+		}
+	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/DetailsActivity.kt

@@ -43,6 +43,7 @@ import kotlinx.coroutines.flow.filterNotNull
 import kotlinx.coroutines.flow.map
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.bookmarks.domain.Bookmark
+import org.koitharu.kotatsu.core.image.CoilMemoryCacheKey
 import org.koitharu.kotatsu.core.model.FavouriteCategory
 import org.koitharu.kotatsu.core.model.LocalMangaSource
 import org.koitharu.kotatsu.core.model.UnknownMangaSource
@@ -100,10 +101,12 @@ import org.koitharu.kotatsu.list.ui.adapter.mangaGridItemAD
 import org.koitharu.kotatsu.list.ui.model.ListModel
 import org.koitharu.kotatsu.list.ui.model.MangaListModel
 import org.koitharu.kotatsu.list.ui.size.StaticItemSizeResolver
+import org.koitharu.kotatsu.parsers.model.ContentRating
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaTag
 import org.koitharu.kotatsu.parsers.util.ifNullOrEmpty
 import org.koitharu.kotatsu.parsers.util.nullIfEmpty
+import org.koitharu.kotatsu.parsers.util.toTitleCase
 import org.koitharu.kotatsu.scrobbling.common.domain.model.ScrobblingInfo
 import javax.inject.Inject
 import kotlin.math.roundToInt
@@ -179,16 +182,6 @@ class DetailsActivity :
 		viewModel.isStatsAvailable.observe(this, menuInvalidator)
 		viewModel.remoteManga.observe(this, menuInvalidator)
 		viewModel.tags.observe(this, ::onTagsChanged)
-		viewModel.branches.observe(this) {
-			val branch = it.singleOrNull()
-			infoBinding.textViewTranslation.textAndVisible = branch?.name
-			infoBinding.textViewTranslation.drawableStart = branch?.locale?.let {
-				LocaleUtils.getEmojiFlag(it)
-			}?.let {
-				TextDrawable.compound(infoBinding.textViewTranslation, it)
-			}
-			infoBinding.textViewTranslationLabel.isVisible = infoBinding.textViewTranslation.isVisible
-		}
 		viewModel.chapters.observe(this, PrefetchObserver(this))
 		viewModel.onDownloadStarted
 			.filterNot { appRouter.isChapterPagesSheetShown() }
@@ -202,7 +195,7 @@ class DetailsActivity :
 		addMenuProvider(menuProvider)
 	}
 
-	override fun isNsfwContent(): Flow<Boolean> = viewModel.manga.map { it?.isNsfw == true }
+	override fun isNsfwContent(): Flow<Boolean> = viewModel.manga.map { it?.contentRating == ContentRating.ADULT }
 
 	override fun onClick(v: View) {
 		when (v.id) {
@@ -232,6 +225,7 @@ class DetailsActivity :
 				router.openImage(
 					url = viewModel.coverUrl.value ?: return,
 					source = manga.source,
+					preview = CoilMemoryCacheKey.from(viewBinding.imageViewCover),
 					anchor = v,
 				)
 			}
@@ -407,10 +401,20 @@ class DetailsActivity :
 		with(viewBinding) {
 			textViewTitle.text = manga.title
 			textViewSubtitle.textAndVisible = manga.altTitles.joinToString("\n")
-			textViewNsfw.isVisible = manga.isNsfw
+			textViewNsfw16.isVisible = manga.contentRating == ContentRating.SUGGESTIVE
+			textViewNsfw18.isVisible = manga.contentRating == ContentRating.ADULT
 			textViewDescription.text = details.description.ifNullOrEmpty { getString(R.string.no_description) }
 		}
 		with(infoBinding) {
+			val translation = details.getLocale()
+			infoBinding.textViewTranslation.textAndVisible = translation?.getDisplayLanguage(translation)
+				?.toTitleCase(translation)
+			infoBinding.textViewTranslation.drawableStart = translation?.let {
+				LocaleUtils.getEmojiFlag(it)
+			}?.let {
+				TextDrawable.compound(infoBinding.textViewTranslation, it)
+			}
+			infoBinding.textViewTranslationLabel.isVisible = infoBinding.textViewTranslation.isVisible
 			textViewAuthor.textAndVisible = manga.author
 			textViewAuthorLabel.isVisible = textViewAuthor.isVisible
 			if (manga.hasRating) {

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/model/MangaBranch.kt

@@ -2,7 +2,6 @@ package org.koitharu.kotatsu.details.ui.model
 
 import org.koitharu.kotatsu.list.ui.ListModelDiffCallback
 import org.koitharu.kotatsu.list.ui.model.ListModel
-import java.util.Locale
 
 data class MangaBranch(
 	val name: String?,
@@ -11,8 +10,6 @@ data class MangaBranch(
 	val isCurrent: Boolean,
 ) : ListModel {
 
-	val locale: Locale? by lazy(::findAppropriateLocale)
-
 	override fun areItemsTheSame(other: ListModel): Boolean {
 		return other is MangaBranch && other.name == name
 	}
@@ -28,16 +25,4 @@ data class MangaBranch(
 	override fun toString(): String {
 		return "$name: $count"
 	}
-
-	private fun findAppropriateLocale(): Locale? {
-		if (name.isNullOrEmpty()) {
-			return null
-		}
-		return Locale.getAvailableLocales().find { lc ->
-			name.contains(lc.getDisplayName(lc), ignoreCase = true) ||
-			name.contains(lc.getDisplayName(Locale.ENGLISH), ignoreCase = true) ||
-				name.contains(lc.getDisplayLanguage(lc), ignoreCase = true) ||
-				name.contains(lc.getDisplayLanguage(Locale.ENGLISH), ignoreCase = true)
-		}
-	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/bookmarks/BookmarksViewModel.kt

@@ -71,7 +71,7 @@ class BookmarksViewModel @Inject constructor(
 			if (b.isNullOrEmpty()) {
 				continue
 			}
-			result += ListHeader(chapter.name)
+			result += ListHeader(chapter)
 			result.addAll(b)
 		}
 		if (result.isEmpty()) {

app/src/main/kotlin/org/koitharu/kotatsu/details/ui/pager/pages/PagesViewModel.kt

@@ -130,7 +130,7 @@ class PagesViewModel @Inject constructor(
 			for (page in snapshot) {
 				if (page.chapterId != previousChapterId) {
 					chaptersLoader.peekChapter(page.chapterId)?.let {
-						add(ListHeader(it.name))
+						add(ListHeader(it))
 					}
 					previousChapterId = page.chapterId
 				}

app/src/main/kotlin/org/koitharu/kotatsu/image/ui/ImageActivity.kt

@@ -11,21 +11,20 @@ import androidx.core.view.WindowInsetsCompat
 import androidx.core.view.isVisible
 import androidx.core.view.updateLayoutParams
 import androidx.swiperefreshlayout.widget.CircularProgressDrawable
-import coil3.Image
 import coil3.ImageLoader
-import coil3.asDrawable
 import coil3.request.CachePolicy
 import coil3.request.ErrorResult
 import coil3.request.ImageRequest
 import coil3.request.SuccessResult
 import coil3.request.lifecycle
-import coil3.target.ViewTarget
+import coil3.target.GenericViewTarget
 import com.davemorrissey.labs.subscaleview.ImageSource
 import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView
 import com.google.android.material.snackbar.Snackbar
 import dagger.hilt.android.AndroidEntryPoint
 import org.koitharu.kotatsu.R
 import org.koitharu.kotatsu.core.exceptions.resolve.SnackbarErrorObserver
+import org.koitharu.kotatsu.core.image.CoilMemoryCacheKey
 import org.koitharu.kotatsu.core.model.MangaSource
 import org.koitharu.kotatsu.core.nav.AppRouter
 import org.koitharu.kotatsu.core.ui.BaseActivity
@@ -36,6 +35,7 @@ import org.koitharu.kotatsu.core.util.ext.end
 import org.koitharu.kotatsu.core.util.ext.enqueueWith
 import org.koitharu.kotatsu.core.util.ext.getDisplayIcon
 import org.koitharu.kotatsu.core.util.ext.getDisplayMessage
+import org.koitharu.kotatsu.core.util.ext.getParcelableExtraCompat
 import org.koitharu.kotatsu.core.util.ext.getThemeColor
 import org.koitharu.kotatsu.core.util.ext.mangaSourceExtra
 import org.koitharu.kotatsu.core.util.ext.observe
@@ -63,7 +63,6 @@ class ImageActivity : BaseActivity<ActivityImageBinding>(),
 		setContentView(ActivityImageBinding.inflate(layoutInflater))
 		viewBinding.buttonBack.setOnClickListener(this)
 		viewBinding.buttonMenu.setOnClickListener(this)
-		val imageUrl = requireNotNull(intent.data)
 
 		val menuProvider = ImageMenuProvider(
 			activity = this,
@@ -74,14 +73,14 @@ class ImageActivity : BaseActivity<ActivityImageBinding>(),
 		viewModel.isLoading.observe(this, ::onLoadingStateChanged)
 		viewModel.onError.observeEvent(this, SnackbarErrorObserver(viewBinding.root, null))
 		viewModel.onImageSaved.observeEvent(this, ::onImageSaved)
-		loadImage(imageUrl)
+		loadImage()
 	}
 
 	override fun onClick(v: View) {
 		when (v.id) {
 			R.id.button_back -> dispatchNavigateUp()
 			R.id.button_menu -> menuMediator.onLongClick(v)
-			else -> loadImage(intent.data)
+			else -> loadImage()
 		}
 	}
 
@@ -122,10 +121,11 @@ class ImageActivity : BaseActivity<ActivityImageBinding>(),
 		return insets.consumeAll(typeMask)
 	}
 
-	private fun loadImage(url: Uri?) {
+	private fun loadImage() {
 		ImageRequest.Builder(this)
-			.data(url)
+			.data(intent.data)
-			.memoryCachePolicy(CachePolicy.DISABLED)
+			.memoryCacheKey(intent.getParcelableExtraCompat<CoilMemoryCacheKey>(AppRouter.KEY_PREVIEW)?.data)
+			.memoryCachePolicy(CachePolicy.READ_ONLY)
 			.lifecycle(this)
 			.listener(this)
 			.mangaSourceExtra(MangaSource(intent.getStringExtra(AppRouter.KEY_SOURCE)))
@@ -158,11 +158,13 @@ class ImageActivity : BaseActivity<ActivityImageBinding>(),
 
 	private class SsivTarget(
 		override val view: SubsamplingScaleImageView,
-	) : ViewTarget<SubsamplingScaleImageView> {
+	) : GenericViewTarget<SubsamplingScaleImageView>() {
 
-		override fun onError(error: Image?) = setDrawable(error?.asDrawable(view.resources))
+		override var drawable: Drawable? = null
-
+			set(value) {
-		override fun onSuccess(result: Image) = setDrawable(result.asDrawable(view.resources))
+				field = value
+				setImageDrawable(value)
+			}
 
 		override fun equals(other: Any?): Boolean {
 			return (this === other) || (other is SsivTarget && view == other.view)
@@ -172,7 +174,7 @@ class ImageActivity : BaseActivity<ActivityImageBinding>(),
 
 		override fun toString() = "SsivTarget(view=$view)"
 
-		private fun setDrawable(drawable: Drawable?) {
+		private fun setImageDrawable(drawable: Drawable?) {
 			if (drawable != null) {
 				view.setImage(ImageSource.bitmap(drawable.toBitmap()))
 			} else {

app/src/main/kotlin/org/koitharu/kotatsu/list/ui/model/ListHeader.kt

@@ -2,8 +2,11 @@ package org.koitharu.kotatsu.list.ui.model
 
 import android.content.Context
 import androidx.annotation.StringRes
+import org.koitharu.kotatsu.core.model.getLocalizedTitle
 import org.koitharu.kotatsu.core.ui.model.DateTimeAgo
+import org.koitharu.kotatsu.parsers.model.MangaChapter
 
+@ConsistentCopyVisibility
 data class ListHeader private constructor(
 	private val textRaw: Any,
 	@StringRes val buttonTextRes: Int,
@@ -25,6 +28,13 @@ data class ListHeader private constructor(
 		badge: String? = null,
 	) : this(textRaw = textRes, buttonTextRes, payload, badge)
 
+	constructor(
+		chapter: MangaChapter,
+		@StringRes buttonTextRes: Int = 0,
+		payload: Any? = null,
+		badge: String? = null,
+	) : this(textRaw = chapter, buttonTextRes, payload, badge)
+
 	constructor(
 		dateTimeAgo: DateTimeAgo,
 		@StringRes buttonTextRes: Int = 0,
@@ -36,6 +46,7 @@ data class ListHeader private constructor(
 		is CharSequence -> textRaw
 		is Int -> if (textRaw != 0) context.getString(textRaw) else null
 		is DateTimeAgo -> textRaw.format(context)
+		is MangaChapter -> textRaw.getLocalizedTitle(context.resources)
 		else -> null
 	}
 

app/src/main/kotlin/org/koitharu/kotatsu/reader/ui/ReaderViewModel.kt

@@ -50,6 +50,7 @@ import org.koitharu.kotatsu.list.domain.ReadingProgress.Companion.PROGRESS_NONE
 import org.koitharu.kotatsu.local.data.LocalStorageChanges
 import org.koitharu.kotatsu.local.domain.DeleteLocalMangaUseCase
 import org.koitharu.kotatsu.local.domain.model.LocalManga
+import org.koitharu.kotatsu.parsers.model.ContentRating
 import org.koitharu.kotatsu.parsers.model.Manga
 import org.koitharu.kotatsu.parsers.model.MangaPage
 import org.koitharu.kotatsu.parsers.util.ifNullOrEmpty
@@ -177,7 +178,7 @@ class ReaderViewModel @Inject constructor(
 		}.stateIn(viewModelScope + Dispatchers.Default, SharingStarted.Eagerly, null),
 	)
 
-	val isMangaNsfw = manga.map { it?.isNsfw == true }
+	val isMangaNsfw = manga.map { it?.contentRating == ContentRating.ADULT }
 
 	val isBookmarkAdded = readingState.flatMapLatest { state ->
 		val manga = mangaDetails.value?.toManga()

app/src/main/res/layout-w600dp-land/activity_details.xml

@@ -74,19 +74,27 @@
 					tools:ignore="ContentDescription,UnusedAttribute" />
 
 				<TextView
-					android:id="@+id/textView_nsfw"
+					android:id="@+id/textView_nsfw_16"
+					style="@style/Widget.Kotatsu.TextView.Badge"
 					android:layout_width="wrap_content"
 					android:layout_height="wrap_content"
 					android:layout_margin="@dimen/card_indicator_offset"
-					android:background="@drawable/bg_chip"
+					android:backgroundTint="@color/nsfw_16"
-					android:backgroundTint="@color/warning"
+					android:text="@string/nsfw_16"
-					android:gravity="center"
+					android:visibility="gone"
-					android:paddingHorizontal="4dp"
+					app:layout_constraintBottom_toBottomOf="@id/imageView_cover"
-					android:paddingVertical="2dp"
+					app:layout_constraintEnd_toEndOf="@id/imageView_cover"
+					tools:visibility="visible" />
+
+				<TextView
+					android:id="@+id/textView_nsfw_18"
+					style="@style/Widget.Kotatsu.TextView.Badge"
+					android:layout_width="wrap_content"
+					android:layout_height="wrap_content"
+					android:layout_margin="@dimen/card_indicator_offset"
+					android:backgroundTint="@color/nsfw_18"
 					android:text="@string/nsfw"
-					android:textAlignment="center"
+					android:visibility="gone"
-					android:textAppearance="?textAppearanceLabelMedium"
-					android:textColor="?colorOnError"
 					app:layout_constraintBottom_toBottomOf="@id/imageView_cover"
 					app:layout_constraintEnd_toEndOf="@id/imageView_cover" />
 

app/src/main/res/layout/activity_details.xml

@@ -66,19 +66,27 @@
 					tools:ignore="ContentDescription,UnusedAttribute" />
 
 				<TextView
-					android:id="@+id/textView_nsfw"
+					android:id="@+id/textView_nsfw_16"
+					style="@style/Widget.Kotatsu.TextView.Badge"
 					android:layout_width="wrap_content"
 					android:layout_height="wrap_content"
 					android:layout_margin="@dimen/card_indicator_offset"
-					android:background="@drawable/bg_chip"
+					android:backgroundTint="@color/nsfw_16"
-					android:backgroundTint="@color/warning"
+					android:text="@string/nsfw_16"
-					android:gravity="center"
+					android:visibility="gone"
-					android:paddingHorizontal="4dp"
+					app:layout_constraintBottom_toBottomOf="@id/imageView_cover"
-					android:paddingVertical="2dp"
+					app:layout_constraintEnd_toEndOf="@id/imageView_cover"
+					tools:visibility="visible" />
+
+				<TextView
+					android:id="@+id/textView_nsfw_18"
+					style="@style/Widget.Kotatsu.TextView.Badge"
+					android:layout_width="wrap_content"
+					android:layout_height="wrap_content"
+					android:layout_margin="@dimen/card_indicator_offset"
+					android:backgroundTint="@color/nsfw_18"
 					android:text="@string/nsfw"
-					android:textAlignment="center"
+					android:visibility="gone"
-					android:textAppearance="?textAppearanceLabelMedium"
-					android:textColor="?colorOnError"
 					app:layout_constraintBottom_toBottomOf="@id/imageView_cover"
 					app:layout_constraintEnd_toEndOf="@id/imageView_cover" />
 

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

@@ -10,6 +10,8 @@
 	<color name="common_green">#81C784</color>
 	<color name="common_red">#E57373</color>
 	<color name="dim2">#C8000000</color>
+	<color name="nsfw_18">#BF360C</color>
+	<color name="nsfw_16">#FF6F00</color>
 
 	<!-- Color schemes colors -->
 	<color name="background_miku">#191C1C</color>

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

@@ -20,6 +20,8 @@
 	<color name="launcher_background">#FFFFFF</color>
 	<color name="common_green">#388E3C</color>
 	<color name="common_red">#D32F2F</color>
+	<color name="nsfw_18">#FF8A65</color>
+	<color name="nsfw_16">#FFD54F</color>
 
 	<!-- Color schemes colors -->
 	<color name="background_miku">#F7FAF8</color>

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

@@ -215,6 +215,7 @@
 	<string name="preload_pages">Preload pages</string>
 	<string name="logged_in_as">Logged in as %s</string>
 	<string name="nsfw">18+</string>
+	<string name="nsfw_16">16+</string>
 	<string name="various_languages">Various languages</string>
 	<string name="search_chapters">Find chapter</string>
 	<string name="chapters_empty">No chapters in this manga</string>

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

@@ -229,6 +229,18 @@
 		<item name="android:textAppearance">?textAppearanceLabelMedium</item>
 	</style>
 
+	<style name="Widget.Kotatsu.TextView.Badge" parent="Widget.MaterialComponents.TextView">
+		<item name="android:background">@drawable/bg_chip</item>
+		<item name="android:gravity">center</item>
+		<item name="android:textAlignment">center</item>
+		<item name="android:paddingStart">4dp</item>
+		<item name="android:paddingEnd">4dp</item>
+		<item name="android:paddingTop">2dp</item>
+		<item name="android:paddingBottom">2dp</item>
+		<item name="android:textAppearance">?textAppearanceLabelMedium</item>
+		<item name="android:textColor">?colorOnBackground</item>
+	</style>
+
 	<style name="ThemeOverlay.Kotatsu.MainToolbar" parent="">
 		<item name="colorControlHighlight">@color/selector_overlay</item>
 	</style>