Merge pull request #7 from gedoor/master

merge

app/build.gradle

@@ -193,6 +193,9 @@ dependencies {
     implementation 'org.apache.commons:commons-lang3:3.11'
     implementation 'org.apache.commons:commons-text:1.8'
 
+    //字符串比较
+    implementation 'net.ricecode:string-similarity:1.0.0'
+
     //MarkDown
     implementation 'ru.noties.markwon:core:3.1.0'
 
@@ -205,8 +208,6 @@ dependencies {
         exclude group: 'xmlpull'
     }
 
-    //E-Ink 有些手机会出现重影
-    //implementation 'fadeapp.widgets:scrollless-recyclerView:1.0.2'
 }
 
 apply plugin: 'com.google.gms.google-services'

app/src/main/assets/updateLog.md

@@ -3,6 +3,11 @@
 * 关注合作公众号 **[小说拾遗]()** 获取好看的小说。
 * 旧版数据导入教程：先在旧版阅读(2.x)中进行备份，然后在新版阅读(3.x)【我的】->【备份与恢复】，选择【导入旧版本数据】。
 
+**2020/10/18**
+* 优化分组管理,默认分组可以重命名了
+* 修复书架空白的bug,是constraintlayout库新版本的bug
+* 修复分组和崩溃bug
+
 **2020/10/16**
 * 修复排版导入背景失败bug
 * 修改默认度逍遥per为5003,需要重新导入默认

app/src/main/java/io/legado/app/constant/AppConst.kt

@@ -1,9 +1,6 @@
 package io.legado.app.constant
 
 import android.annotation.SuppressLint
-import io.legado.app.App
-import io.legado.app.R
-import io.legado.app.data.entities.BookGroup
 import java.text.SimpleDateFormat
 import javax.script.ScriptEngine
 import javax.script.ScriptEngineManager
@@ -47,10 +44,10 @@ object AppConst {
         )
     }
 
-    val bookGroupAll = BookGroup(-1, App.INSTANCE.getString(R.string.all))
+    const val bookGroupAllId = -1L
-    val bookGroupLocal = BookGroup(-2, App.INSTANCE.getString(R.string.local))
+    const val bookGroupLocalId = -2L
-    val bookGroupAudio = BookGroup(-3, App.INSTANCE.getString(R.string.audio))
+    const val bookGroupAudioId = -3L
-    val bookGroupNone = BookGroup(-4, App.INSTANCE.getString(R.string.no_group))
+    const val bookGroupNoneId = -4L
 
     const val notificationIdRead = 1144771
     const val notificationIdAudio = 1144772

app/src/main/java/io/legado/app/constant/AppPattern.kt

@@ -2,6 +2,7 @@ package io.legado.app.constant
 
 import java.util.regex.Pattern
 
+@Suppress("RegExpRedundantEscape")
 object AppPattern {
     val JS_PATTERN: Pattern =
         Pattern.compile("(<js>[\\w\\W]*?</js>|@js:[\\w\\W]*$)", Pattern.CASE_INSENSITIVE)

app/src/main/java/io/legado/app/data/AppDatabase.kt

@@ -7,8 +7,10 @@ import androidx.room.RoomDatabase
 import androidx.room.migration.Migration
 import androidx.sqlite.db.SupportSQLiteDatabase
 import io.legado.app.App
+import io.legado.app.constant.AppConst
 import io.legado.app.data.dao.*
 import io.legado.app.data.entities.*
+import java.util.*
 
 
 @Database(
@@ -16,7 +18,7 @@ import io.legado.app.data.entities.*
         ReplaceRule::class, SearchBook::class, SearchKeyword::class, Cookie::class,
         RssSource::class, Bookmark::class, RssArticle::class, RssReadRecord::class,
         RssStar::class, TxtTocRule::class, ReadRecord::class, HttpTTS::class],
-    version = 20,
+    version = 21,
     exportSchema = true
 )
 abstract class AppDatabase: RoomDatabase() {
@@ -37,12 +39,50 @@ abstract class AppDatabase: RoomDatabase() {
                     migration_15_17,
                     migration_17_18,
                     migration_18_19,
-                    migration_19_20
+                    migration_19_20,
+                    migration_20_21
                 )
                 .allowMainThreadQueries()
+                .addCallback(dbCallback)
                 .build()
 
-        private val migration_10_11 = object: Migration(10, 11) {
+        private val dbCallback = object : Callback() {
+
+            override fun onCreate(db: SupportSQLiteDatabase) {
+                super.onCreate(db)
+                db.setLocale(Locale.CHINESE)
+            }
+
+            override fun onOpen(db: SupportSQLiteDatabase) {
+                db.setLocale(Locale.CHINESE)
+                db.execSQL(
+                    """
+                    insert into book_groups(groupId, groupName, 'order', show) select ${AppConst.bookGroupAllId}, '全部', -10, 1
+                    where not exists (select * from book_groups where groupId = ${AppConst.bookGroupAllId})
+                """
+                )
+                db.execSQL(
+                    """
+                    insert into book_groups(groupId, groupName, 'order', show) select ${AppConst.bookGroupLocalId}, '本地', -9, 1
+                    where not exists (select * from book_groups where groupId = ${AppConst.bookGroupLocalId})
+                """
+                )
+                db.execSQL(
+                    """
+                    insert into book_groups(groupId, groupName, 'order', show) select ${AppConst.bookGroupAudioId}, '音频', -8, 1
+                    where not exists (select * from book_groups where groupId = ${AppConst.bookGroupAudioId})
+                """
+                )
+                db.execSQL(
+                    """
+                    insert into book_groups(groupId, groupName, 'order', show) select ${AppConst.bookGroupNoneId}, '未分组', -7, 1
+                    where not exists (select * from book_groups where groupId = ${AppConst.bookGroupNoneId})
+                """
+                )
+            }
+        }
+
+        private val migration_10_11 = object : Migration(10, 11) {
             override fun migrate(database: SupportSQLiteDatabase) {
                 database.execSQL("DROP TABLE txtTocRules")
                 database.execSQL(
@@ -112,11 +152,17 @@ abstract class AppDatabase: RoomDatabase() {
                 database.execSQL("ALTER TABLE readRecordNew RENAME TO readRecord")
             }
         }
-        private val migration_19_20 = object: Migration(19, 20) {
+        private val migration_19_20 = object : Migration(19, 20) {
             override fun migrate(database: SupportSQLiteDatabase) {
                 database.execSQL("ALTER TABLE book_sources ADD bookSourceComment TEXT")
             }
         }
+
+        private val migration_20_21 = object : Migration(20, 21) {
+            override fun migrate(database: SupportSQLiteDatabase) {
+                database.execSQL("ALTER TABLE book_groups ADD show INTEGER NOT NULL DEFAULT 1")
+            }
+        }
     }
     
     abstract fun bookDao(): BookDao

app/src/main/java/io/legado/app/data/dao/BookDao.kt

@@ -18,18 +18,22 @@ interface BookDao {
     @Query("SELECT * FROM books WHERE origin = '${BookType.local}'")
     fun observeLocal(): LiveData<List<Book>>
 
+    @Query(
+        """
+        select * from books where ((SELECT sum(groupId) FROM book_groups where groupId > 0) & `group`) = 0 and type != ${BookType.audio} and origin != '${BookType.local}'
+    """
+    )
+    fun observeNoGroup(): LiveData<List<Book>>
+
+    @Query("select count(bookUrl) from books where (SELECT sum(groupId) FROM book_groups where groupId > 0) & `group` = 0")
+    fun observeNoGroupSize(): LiveData<Int>
+
     @Query("SELECT bookUrl FROM books WHERE origin = '${BookType.local}'")
     fun observeLocalUri(): LiveData<List<String>>
 
     @Query("SELECT * FROM books WHERE (`group` & :group) > 0")
     fun observeByGroup(group: Long): LiveData<List<Book>>
 
-    @Query("select * from books where (SELECT sum(groupId) FROM book_groups) & `group` = 0")
-    fun observeNoGroup(): LiveData<List<Book>>
-
-    @Query("select count(bookUrl) from books where (SELECT sum(groupId) FROM book_groups) & `group` = 0")
-    fun observeNoGroupSize(): LiveData<Int>
-
     @Query("SELECT * FROM books WHERE name like '%'||:key||'%' or author like '%'||:key||'%'")
     fun liveDataSearch(key: String): LiveData<List<Book>>
 

app/src/main/java/io/legado/app/data/dao/BookGroupDao.kt

@@ -16,15 +16,27 @@ interface BookGroupDao {
     @Query("SELECT * FROM book_groups ORDER BY `order`")
     fun liveDataAll(): LiveData<List<BookGroup>>
 
-    @get:Query("SELECT sum(groupId) FROM book_groups")
+    @Query("SELECT * FROM book_groups where show > 0 or groupId >= 0 ORDER BY `order`")
+    fun liveDataShow(): LiveData<List<BookGroup>>
+
+    @Query("SELECT * FROM book_groups where groupId >= 0 ORDER BY `order`")
+    fun liveDataSelect(): LiveData<List<BookGroup>>
+
+    @get:Query("SELECT sum(groupId) FROM book_groups where groupId >= 0")
     val idsSum: Long
 
-    @get:Query("SELECT MAX(`order`) FROM book_groups")
+    @get:Query("SELECT MAX(`order`) FROM book_groups where groupId >= 0")
     val maxOrder: Int
 
     @get:Query("SELECT * FROM book_groups ORDER BY `order`")
     val all: List<BookGroup>
 
+    @Query("update book_groups set show = 1 where groupId = :groupId")
+    fun enableGroup(groupId: Long)
+
+    @Query("select groupName from book_groups where groupId > 0 and (groupId & :id) > 0")
+    fun getGroupNames(id: Long): List<String>
+
     @Insert(onConflict = OnConflictStrategy.REPLACE)
     fun insert(vararg bookGroup: BookGroup)
 

app/src/main/java/io/legado/app/data/dao/ReadRecordDao.kt

@@ -10,7 +10,7 @@ interface ReadRecordDao {
     @get:Query("select * from readRecord")
     val all: List<ReadRecord>
 
-    @get:Query("select bookName, sum(readTime) as readTime from readRecord group by bookName order by bookName")
+    @get:Query("select bookName, sum(readTime) as readTime from readRecord group by bookName order by bookName collate localized")
     val allShow: List<ReadRecordShow>
 
     @get:Query("select sum(readTime) from readRecord")

app/src/main/java/io/legado/app/data/entities/BookGroup.kt

@@ -1,8 +1,11 @@
 package io.legado.app.data.entities
 
+import android.content.Context
 import android.os.Parcelable
 import androidx.room.Entity
 import androidx.room.PrimaryKey
+import io.legado.app.R
+import io.legado.app.constant.AppConst
 import kotlinx.android.parcel.Parcelize
 
 @Parcelize
@@ -11,5 +14,18 @@ data class BookGroup(
     @PrimaryKey
     val groupId: Long = 0b1,
     var groupName: String,
-    var order: Int = 0
+    var order: Int = 0,
-) : Parcelable
+    var show: Boolean = true
+) : Parcelable {
+
+    fun getManageName(context: Context): String {
+        return when (groupId) {
+            AppConst.bookGroupAllId -> "$groupName(${context.getString(R.string.all)})"
+            AppConst.bookGroupAudioId -> "$groupName(${context.getString(R.string.audio)})"
+            AppConst.bookGroupLocalId -> "$groupName(${context.getString(R.string.local)})"
+            AppConst.bookGroupNoneId -> "$groupName(${context.getString(R.string.no_group)})"
+            else -> groupName
+        }
+    }
+
+}

app/src/main/java/io/legado/app/help/AppConfig.kt

@@ -97,30 +97,6 @@ object AppConfig {
             App.INSTANCE.putPrefInt(PreferKey.systemTypefaces, value)
         }
 
-    var bookGroupAllShow: Boolean
-        get() = App.INSTANCE.getPrefBoolean("bookGroupAll", true)
-        set(value) {
-            App.INSTANCE.putPrefBoolean("bookGroupAll", value)
-        }
-
-    var bookGroupLocalShow: Boolean
-        get() = App.INSTANCE.getPrefBoolean("bookGroupLocal", false)
-        set(value) {
-            App.INSTANCE.putPrefBoolean("bookGroupLocal", value)
-        }
-
-    var bookGroupAudioShow: Boolean
-        get() = App.INSTANCE.getPrefBoolean("bookGroupAudio", false)
-        set(value) {
-            App.INSTANCE.putPrefBoolean("bookGroupAudio", value)
-        }
-
-    var bookGroupNoneShow: Boolean
-        get() = App.INSTANCE.getPrefBoolean("bookGroupNone", false)
-        set(value) {
-            App.INSTANCE.putPrefBoolean("bookGroupNone", value)
-        }
-
     var elevation: Int
         @SuppressLint("PrivateResource")
         get() = App.INSTANCE.getPrefInt(

app/src/main/java/io/legado/app/help/BookHelp.kt

@@ -15,10 +15,15 @@ import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.Dispatchers.Main
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.withContext
-import org.apache.commons.text.similarity.JaccardSimilarity
+import net.ricecode.similarity.JaroWinklerStrategy
+import net.ricecode.similarity.StringSimilarityServiceImpl
 import org.jetbrains.anko.toast
 import java.io.File
 import java.util.concurrent.CopyOnWriteArraySet
+import java.util.regex.Matcher
+import java.util.regex.Pattern
+import kotlin.math.abs
+import kotlin.math.max
 import kotlin.math.min
 
 object BookHelp {
@@ -202,54 +207,88 @@ object BookHelp {
     }
 
     /**
-     * 找到相似度最高的章节
+     * 根据目录名获取当前章节
      */
-    fun getDurChapterIndexByChapterTitle(
+    fun getDurChapter(
-        title: String?,
+        oldDurChapterIndex: Int,
-        index: Int,
+        oldChapterListSize: Int,
-        chapters: List<BookChapter>,
+        oldDurChapterName: String?,
+        newChapterList: List<BookChapter>
     ): Int {
-        if (title.isNullOrEmpty()) {
+        if (oldChapterListSize == 0) return 0
-            return min(index, chapters.lastIndex)
+        val oldChapterNum = getChapterNum(oldDurChapterName)
-        }
+        val oldName = getPureChapterName(oldDurChapterName)
-        if (chapters.size > index && title == chapters[index].title) {
+        val newChapterSize = newChapterList.size
-            return index
+        val min = max(
-        }
+            0,
-
+            min(
+                oldDurChapterIndex,
+                oldDurChapterIndex - oldChapterListSize + newChapterSize
+            ) - 10
+        )
+        val max = min(
+            newChapterSize - 1,
+            max(
+                oldDurChapterIndex,
+                oldDurChapterIndex - oldChapterListSize + newChapterSize
+            ) + 10
+        )
+        var nameSim = 0.0
         var newIndex = 0
-        val jSimilarity = JaccardSimilarity()
+        var newNum = 0
-        var similarity = if (chapters.size > index) {
+        if (oldName.isNotEmpty()) {
-            jSimilarity.apply(title, chapters[index].title)
+            val service = StringSimilarityServiceImpl(JaroWinklerStrategy())
-        } else 0.0
+            for (i in min..max) {
-        if (similarity == 1.0) {
+                val newName = getPureChapterName(newChapterList[i].title)
-            return index
+                val temp = service.score(oldName, newName)
-        } else {
+                if (temp > nameSim) {
-            for (i in 1..50) {
+                    nameSim = temp
-                if (index - i in chapters.indices) {
+                    newIndex = i
-                    jSimilarity.apply(title, chapters[index - i].title).let {
-                        if (it > similarity) {
-                            similarity = it
-                            newIndex = index - i
-                            if (similarity == 1.0) {
-                                return newIndex
                 }
             }
         }
+        if (nameSim < 0.96 && oldChapterNum > 0) {
+            for (i in min..max) {
+                val temp = getChapterNum(newChapterList[i].title)
+                if (temp == oldChapterNum) {
+                    newNum = temp
+                    newIndex = i
+                    break
+                } else if (abs(temp - oldChapterNum) < abs(newNum - oldChapterNum)) {
+                    newNum = temp
+                    newIndex = i
                 }
-                if (index + i in chapters.indices) {
-                    jSimilarity.apply(title, chapters[index + i].title).let {
-                        if (it > similarity) {
-                            similarity = it
-                            newIndex = index + i
-                            if (similarity == 1.0) {
-                                return newIndex
             }
         }
+        return if (nameSim > 0.96 || abs(newNum - oldChapterNum) < 1) {
+            newIndex
+        } else {
+            min(max(0, newChapterList.size - 1), oldDurChapterIndex)
         }
     }
+
+    private val chapterNamePattern =
+        Pattern.compile("^(.*?第([\\d零〇一二两三四五六七八九十百千万壹贰叁肆伍陆柒捌玖拾佰仟０-９\\s]+)[章节篇回集])[、，。　：:.\\s]*")
+
+    private fun getChapterNum(chapterName: String?): Int {
+        if (chapterName != null) {
+            val matcher: Matcher = chapterNamePattern.matcher(chapterName)
+            if (matcher.find()) {
+                return StringUtils.stringToInt(matcher.group(2))
             }
         }
-        return newIndex
+        return -1
+    }
+
+    private fun getPureChapterName(chapterName: String?): String {
+        // 所有非字母数字中日韩文字 CJK区+扩展A-F区
+        return if (chapterName == null) "" else StringUtils.fullToHalf(chapterName)
+            .replace("\\s".toRegex(), "")
+            .replace("^第.*?章|[(\\[][^()\\[\\]]{2,}[)\\]]$".toRegex(), "")
+            .replace(
+                "[^\\w\\u4E00-\\u9FEF〇\\u3400-\\u4DBF\\u20000-\\u2A6DF\\u2A700-\\u2EBEF]".toRegex(),
+                ""
+            )
     }
 
     private var bookName: String? = null

app/src/main/java/io/legado/app/help/storage/Restore.kt

@@ -228,7 +228,6 @@ object Restore {
             LanguageUtils.setConfiguration(App.INSTANCE)
             App.INSTANCE.applyDayNight()
             postEvent(EventBus.SHOW_RSS, "")
-            postEvent(EventBus.RECREATE, "")
         }
     }
 

app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt

@@ -20,7 +20,7 @@ import kotlin.collections.HashMap
  * 统一解析接口
  */
 @Keep
-@Suppress("unused")
+@Suppress("unused", "RegExpRedundantEscape")
 class AnalyzeRule(var book: BaseBook? = null) : JsExtensions {
     var chapter: BookChapter? = null
     private var content: Any? = null

app/src/main/java/io/legado/app/model/rss/Result.kt

@@ -1,5 +0,0 @@
-package io.legado.app.model.rss
-
-import io.legado.app.data.entities.RssArticle
-
-data class Result(val articles: MutableList<RssArticle>, val nextPageUrl: String?)

app/src/main/java/io/legado/app/model/rss/Rss.kt

@@ -5,8 +5,6 @@ import io.legado.app.data.entities.RssSource
 import io.legado.app.help.coroutine.Coroutine
 import io.legado.app.model.analyzeRule.AnalyzeRule
 import io.legado.app.model.analyzeRule.AnalyzeUrl
-import io.legado.app.model.rss.Result
-import io.legado.app.model.rss.RssParserByRule
 import io.legado.app.utils.NetworkUtils
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
@@ -21,7 +19,7 @@ object Rss {
         page: Int,
         scope: CoroutineScope = Coroutine.DEFAULT,
         context: CoroutineContext = Dispatchers.IO
-    ): Coroutine<Result> {
+    ): Coroutine<RssResult> {
         return Coroutine.async(scope, context) {
             val analyzeUrl = AnalyzeUrl(
                 sortUrl,

app/src/main/java/io/legado/app/model/rss/RssParserByRule.kt

@@ -14,7 +14,12 @@ import java.util.*
 object RssParserByRule {
 
     @Throws(Exception::class)
-    fun parseXML(sortName: String, sortUrl: String, body: String?, rssSource: RssSource): Result {
+    fun parseXML(
+        sortName: String,
+        sortUrl: String,
+        body: String?,
+        rssSource: RssSource
+    ): RssResult {
         val sourceUrl = rssSource.sourceUrl
         var nextUrl: String? = null
         if (body.isNullOrBlank()) {
@@ -29,7 +34,7 @@ object RssParserByRule {
         var ruleArticles = rssSource.ruleArticles
         if (ruleArticles.isNullOrBlank()) {
             Debug.log(sourceUrl, "⇒列表规则为空, 使用默认规则解析")
-            return RssParser.parseXML(sortName, body, sourceUrl)
+            return RssParserDefault.parseXML(sortName, body, sourceUrl)
         } else {
             val articleList = mutableListOf<RssArticle>()
             val analyzeRule = AnalyzeRule()
@@ -72,7 +77,7 @@ object RssParserByRule {
             if (reverse) {
                 articleList.reverse()
             }
-            return Result(articleList, nextUrl)
+            return RssResult(articleList, nextUrl)
         }
     }
 

app/src/main/java/io/legado/app/model/rss/RssParserDefault.kt

@@ -8,10 +8,10 @@ import org.xmlpull.v1.XmlPullParserFactory
 import java.io.IOException
 import java.io.StringReader
 
-object RssParser {
+object RssParserDefault {
 
     @Throws(XmlPullParserException::class, IOException::class)
-    fun parseXML(sortName: String, xml: String, sourceUrl: String): Result {
+    fun parseXML(sortName: String, xml: String, sourceUrl: String): RssResult {
 
         val articleList = mutableListOf<RssArticle>()
         var currentArticle = RssArticle()
@@ -105,7 +105,7 @@ object RssParser {
             Debug.log(sourceUrl, "┌获取文章链接")
             Debug.log(sourceUrl, "└${it.link}")
         }
-        return Result(articleList, null)
+        return RssResult(articleList, null)
     }
 
     /**

app/src/main/java/io/legado/app/model/rss/RssResult.kt

@@ -0,0 +1,5 @@
+package io.legado.app.model.rss
+
+import io.legado.app.data.entities.RssArticle
+
+data class RssResult(val articles: MutableList<RssArticle>, val nextPageUrl: String?)

app/src/main/java/io/legado/app/ui/audio/AudioPlayViewModel.kt

@@ -89,7 +89,9 @@ class AudioPlayViewModel(application: Application) : BaseViewModel(application)
 
     fun changeTo(book1: Book) {
         execute {
+            var oldTocSize: Int = book1.totalChapterNum
             AudioPlay.book?.let {
+                oldTocSize = it.totalChapterNum
                 book1.order = it.order
                 App.db.bookDao().delete(it)
             }
@@ -99,18 +101,23 @@ class AudioPlayViewModel(application: Application) : BaseViewModel(application)
                 AudioPlay.webBook = WebBook(it)
             }
             if (book1.tocUrl.isEmpty()) {
-                loadBookInfo(book1) { upChangeDurChapterIndex(book1, it) }
+                loadBookInfo(book1) { upChangeDurChapterIndex(book1, oldTocSize, it) }
             } else {
-                loadChapterList(book1) { upChangeDurChapterIndex(book1, it) }
+                loadChapterList(book1) { upChangeDurChapterIndex(book1, oldTocSize, it) }
             }
         }
     }
 
-    private fun upChangeDurChapterIndex(book: Book, chapters: List<BookChapter>) {
+    private fun upChangeDurChapterIndex(
+        book: Book,
+        oldTocSize: Int,
+        chapters: List<BookChapter>
+    ) {
         execute {
-            AudioPlay.durChapterIndex = BookHelp.getDurChapterIndexByChapterTitle(
+            AudioPlay.durChapterIndex = BookHelp.getDurChapter(
-                book.durChapterTitle,
                 book.durChapterIndex,
+                oldTocSize,
+                book.durChapterTitle,
                 chapters
             )
             book.durChapterIndex = AudioPlay.durChapterIndex

app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookActivity.kt

@@ -69,8 +69,7 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
         recycler_view.addItemDecoration(VerticalDivider(this))
         adapter = ArrangeBookAdapter(this, this)
         recycler_view.adapter = adapter
-        val itemTouchCallback = ItemTouchCallback()
+        val itemTouchCallback = ItemTouchCallback(adapter)
-        itemTouchCallback.onItemTouchCallbackListener = adapter
         itemTouchCallback.isCanDrag = getPrefInt(PreferKey.bookshelfSort) == 3
         val dragSelectTouchHelper: DragSelectTouchHelper =
             DragSelectTouchHelper(adapter.initDragSelectTouchHelperCallback()).setSlideArea(16, 50)
@@ -112,10 +111,10 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
         booksLiveData?.removeObservers(this)
         booksLiveData =
             when (groupId) {
-                AppConst.bookGroupAll.groupId -> App.db.bookDao().observeAll()
+                AppConst.bookGroupAllId -> App.db.bookDao().observeAll()
-                AppConst.bookGroupLocal.groupId -> App.db.bookDao().observeLocal()
+                AppConst.bookGroupLocalId -> App.db.bookDao().observeLocal()
-                AppConst.bookGroupAudio.groupId -> App.db.bookDao().observeAudio()
+                AppConst.bookGroupAudioId -> App.db.bookDao().observeAudio()
-                AppConst.bookGroupNone.groupId -> App.db.bookDao().observeNoGroup()
+                AppConst.bookGroupNoneId -> App.db.bookDao().observeNoGroup()
                 else -> App.db.bookDao().observeByGroup(groupId)
             }
         booksLiveData?.observe(this, { list ->
@@ -134,26 +133,6 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
         when (item.itemId) {
             R.id.menu_group_manage -> GroupManageDialog()
                 .show(supportFragmentManager, "groupManage")
-            R.id.menu_no_group -> {
-                title_bar.subtitle = getString(R.string.no_group)
-                groupId = AppConst.bookGroupNone.groupId
-                initBookData()
-            }
-            R.id.menu_all -> {
-                title_bar.subtitle = item.title
-                groupId = AppConst.bookGroupAll.groupId
-                initBookData()
-            }
-            R.id.menu_local -> {
-                title_bar.subtitle = item.title
-                groupId = AppConst.bookGroupLocal.groupId
-                initBookData()
-            }
-            R.id.menu_audio -> {
-                title_bar.subtitle = item.title
-                groupId = AppConst.bookGroupAudio.groupId
-                initBookData()
-            }
             else -> if (item.groupId == R.id.menu_group) {
                 title_bar.subtitle = item.title
                 groupId = App.db.bookGroupDao().getByName(item.title.toString())?.groupId ?: 0

app/src/main/java/io/legado/app/ui/book/arrange/ArrangeBookAdapter.kt

@@ -19,7 +19,7 @@ import java.util.*
 
 class ArrangeBookAdapter(context: Context, val callBack: CallBack) :
     SimpleRecyclerAdapter<Book>(context, R.layout.item_arrange_book),
-    ItemTouchCallback.OnItemTouchCallbackListener {
+    ItemTouchCallback.Callback {
     val groupRequestCode = 12
     private val selectedBooks: HashSet<Book> = hashSetOf()
     var actionItem: Book? = null
@@ -112,7 +112,7 @@ class ArrangeBookAdapter(context: Context, val callBack: CallBack) :
     private fun getGroupList(groupId: Long): List<String> {
         val groupNames = arrayListOf<String>()
         callBack.groupList.forEach {
-            if (it.groupId and groupId > 0) {
+            if (it.groupId > 0 && it.groupId and groupId > 0) {
                 groupNames.add(it.groupName)
             }
         }

app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt

@@ -57,7 +57,7 @@ class CacheActivity : VMBaseActivity<CacheViewModel>(R.layout.activity_download)
     }
 
     override fun onCompatCreateOptionsMenu(menu: Menu): Boolean {
-        menuInflater.inflate(R.menu.download, menu)
+        menuInflater.inflate(R.menu.book_cache, menu)
         return super.onCompatCreateOptionsMenu(menu)
     }
 
@@ -95,16 +95,6 @@ class CacheActivity : VMBaseActivity<CacheViewModel>(R.layout.activity_download)
             R.id.menu_log -> {
                 TextListDialog.show(supportFragmentManager, getString(R.string.log), CacheBook.logs)
             }
-            R.id.menu_no_group -> {
-                title_bar.subtitle = getString(R.string.no_group)
-                groupId = AppConst.bookGroupNone.groupId
-                initBookData()
-            }
-            R.id.menu_all -> {
-                title_bar.subtitle = item.title
-                groupId = AppConst.bookGroupAll.groupId
-                initBookData()
-            }
             else -> if (item.groupId == R.id.menu_group) {
                 title_bar.subtitle = item.title
                 groupId = App.db.bookGroupDao().getByName(item.title.toString())?.groupId ?: 0
@@ -123,8 +113,10 @@ class CacheActivity : VMBaseActivity<CacheViewModel>(R.layout.activity_download)
     private fun initBookData() {
         booksLiveData?.removeObservers(this)
         booksLiveData = when (groupId) {
-            AppConst.bookGroupAll.groupId -> App.db.bookDao().observeAll()
+            AppConst.bookGroupAllId -> App.db.bookDao().observeAll()
-            AppConst.bookGroupNone.groupId -> App.db.bookDao().observeNoGroup()
+            AppConst.bookGroupLocalId -> App.db.bookDao().observeLocal()
+            AppConst.bookGroupAudioId -> App.db.bookDao().observeAudio()
+            AppConst.bookGroupNoneId -> App.db.bookDao().observeNoGroup()
             else -> App.db.bookDao().observeByGroup(groupId)
         }
         booksLiveData?.observe(this, { list ->

app/src/main/java/io/legado/app/ui/book/group/GroupManageDialog.kt

@@ -10,6 +10,7 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.EditText
 import androidx.appcompat.widget.Toolbar
+import androidx.core.view.isGone
 import androidx.recyclerview.widget.DiffUtil
 import androidx.recyclerview.widget.ItemTouchHelper
 import androidx.recyclerview.widget.LinearLayoutManager
@@ -20,7 +21,6 @@ import io.legado.app.base.BaseDialogFragment
 import io.legado.app.base.adapter.ItemViewHolder
 import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.data.entities.BookGroup
-import io.legado.app.help.AppConfig
 import io.legado.app.lib.dialogs.*
 import io.legado.app.lib.theme.accentColor
 import io.legado.app.lib.theme.backgroundColor
@@ -41,7 +41,6 @@ import kotlin.collections.ArrayList
 class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
     private lateinit var viewModel: GroupViewModel
     private lateinit var adapter: GroupAdapter
-    private val callBack: CallBack? get() = parentFragment as? CallBack
 
     override fun onStart() {
         super.onStart()
@@ -62,67 +61,41 @@ class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
         tool_bar.setBackgroundColor(primaryColor)
         tool_bar.title = getString(R.string.group_manage)
+        initView()
         initData()
         initMenu()
     }
 
-    private fun initData() {
+    private fun initView() {
         adapter = GroupAdapter(requireContext())
         recycler_view.layoutManager = LinearLayoutManager(requireContext())
         recycler_view.addItemDecoration(VerticalDivider(requireContext()))
         recycler_view.adapter = adapter
+        val itemTouchCallback = ItemTouchCallback(adapter)
+        itemTouchCallback.isCanDrag = true
+        ItemTouchHelper(itemTouchCallback).attachToRecyclerView(recycler_view)
         tv_ok.setTextColor(requireContext().accentColor)
         tv_ok.visible()
         tv_ok.onClick { dismiss() }
+    }
+
+    private fun initData() {
         App.db.bookGroupDao().liveDataAll().observe(viewLifecycleOwner, {
             val diffResult =
                 DiffUtil.calculateDiff(GroupDiffCallBack(ArrayList(adapter.getItems()), it))
             adapter.setItems(it, diffResult)
         })
-        val itemTouchCallback = ItemTouchCallback()
-        itemTouchCallback.onItemTouchCallbackListener = adapter
-        itemTouchCallback.isCanDrag = true
-        ItemTouchHelper(itemTouchCallback).attachToRecyclerView(recycler_view)
     }
 
     private fun initMenu() {
         tool_bar.setOnMenuItemClickListener(this)
         tool_bar.inflateMenu(R.menu.book_group_manage)
-        tool_bar.menu.let {
+        tool_bar.menu.applyTint(requireContext())
-            it.applyTint(requireContext())
-            it.findItem(R.id.menu_group_all)
-                .isChecked = AppConfig.bookGroupAllShow
-            it.findItem(R.id.menu_group_local)
-                .isChecked = AppConfig.bookGroupLocalShow
-            it.findItem(R.id.menu_group_audio)
-                .isChecked = AppConfig.bookGroupAudioShow
-            it.findItem(R.id.menu_group_none)
-                .isChecked = AppConfig.bookGroupNoneShow
-        }
     }
 
     override fun onMenuItemClick(item: MenuItem?): Boolean {
         when (item?.itemId) {
             R.id.menu_add -> addGroup()
-            R.id.menu_group_all -> {
-                item.isChecked = !item.isChecked
-                AppConfig.bookGroupAllShow = item.isChecked
-                callBack?.upGroup()
-            }
-            R.id.menu_group_local -> {
-                item.isChecked = !item.isChecked
-                AppConfig.bookGroupLocalShow = item.isChecked
-                callBack?.upGroup()
-            }
-            R.id.menu_group_audio -> {
-                item.isChecked = !item.isChecked
-                AppConfig.bookGroupAudioShow = item.isChecked
-                callBack?.upGroup()
-            }
-            R.id.menu_group_none -> {
-                item.isChecked = !item.isChecked
-                AppConfig.bookGroupNoneShow = item.isChecked
-            }
         }
         return true
     }
@@ -134,7 +107,7 @@ class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
             customView {
                 layoutInflater.inflate(R.layout.dialog_edit_text, null).apply {
                     editText = edit_view.apply {
-                        hint = "分组名称"
+                        setHint(R.string.group_name)
                     }
                 }
             }
@@ -156,7 +129,7 @@ class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
             customView {
                 layoutInflater.inflate(R.layout.dialog_edit_text, null).apply {
                     editText = edit_view.apply {
-                        hint = "分组名称"
+                        setHint(R.string.group_name)
                         setText(bookGroup.groupName)
                     }
                 }
@@ -191,27 +164,33 @@ class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
         }
 
         override fun areItemsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
-            return true
+            val oldItem = oldItems[oldItemPosition]
+            val newItem = newItems[newItemPosition]
+            return oldItem.groupId == newItem.groupId
         }
 
         override fun areContentsTheSame(oldItemPosition: Int, newItemPosition: Int): Boolean {
             val oldItem = oldItems[oldItemPosition]
             val newItem = newItems[newItemPosition]
             return oldItem.groupName == newItem.groupName
+                    && oldItem.show == newItem.show
         }
 
     }
 
     private inner class GroupAdapter(context: Context) :
         SimpleRecyclerAdapter<BookGroup>(context, R.layout.item_group_manage),
-        ItemTouchCallback.OnItemTouchCallbackListener {
+        ItemTouchCallback.Callback {
 
         private var isMoved = false
 
         override fun convert(holder: ItemViewHolder, item: BookGroup, payloads: MutableList<Any>) {
             holder.itemView.apply {
                 setBackgroundColor(context.backgroundColor)
-                tv_group.text = item.groupName
+                tv_group.text = item.getManageName(context)
+                sw_show.isChecked = item.show
+                tv_del.isGone = item.groupId < 0
+                sw_show.isGone = item.groupId >= 0
             }
         }
 
@@ -219,6 +198,13 @@ class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
             holder.itemView.apply {
                 tv_edit.onClick { getItem(holder.layoutPosition)?.let { editGroup(it) } }
                 tv_del.onClick { getItem(holder.layoutPosition)?.let { deleteGroup(it) } }
+                sw_show.setOnCheckedChangeListener { buttonView, isChecked ->
+                    if (buttonView.isPressed) {
+                        getItem(holder.layoutPosition)?.let {
+                            viewModel.upGroup(it.copy(show = isChecked))
+                        }
+                    }
+                }
             }
         }
 
@@ -240,7 +226,4 @@ class GroupManageDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
         }
     }
 
-    interface CallBack {
-        fun upGroup()
-    }
 }

app/src/main/java/io/legado/app/ui/book/group/GroupSelectDialog.kt

@@ -93,13 +93,11 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
         tool_bar.inflateMenu(R.menu.book_group_manage)
         tool_bar.menu.applyTint(requireContext())
         tool_bar.setOnMenuItemClickListener(this)
-        tool_bar.menu.setGroupVisible(R.id.menu_groups, false)
         adapter = GroupAdapter(requireContext())
         recycler_view.layoutManager = LinearLayoutManager(requireContext())
         recycler_view.addItemDecoration(VerticalDivider(requireContext()))
         recycler_view.adapter = adapter
-        val itemTouchCallback = ItemTouchCallback()
+        val itemTouchCallback = ItemTouchCallback(adapter)
-        itemTouchCallback.onItemTouchCallbackListener = adapter
         itemTouchCallback.isCanDrag = true
         ItemTouchHelper(itemTouchCallback).attachToRecyclerView(recycler_view)
         tv_cancel.onClick { dismiss() }
@@ -111,7 +109,7 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
     }
 
     private fun initData() {
-        App.db.bookGroupDao().liveDataAll().observe(viewLifecycleOwner, {
+        App.db.bookGroupDao().liveDataSelect().observe(viewLifecycleOwner, {
             adapter.setItems(it)
         })
     }
@@ -130,7 +128,7 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
             customView {
                 layoutInflater.inflate(R.layout.dialog_edit_text, null).apply {
                     editText = edit_view.apply {
-                        hint = "分组名称"
+                        setHint(R.string.group_name)
                     }
                 }
             }
@@ -152,7 +150,7 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
             customView {
                 layoutInflater.inflate(R.layout.dialog_edit_text, null).apply {
                     editText = edit_view.apply {
-                        hint = "分组名称"
+                        setHint(R.string.group_name)
                         setText(bookGroup.groupName)
                     }
                 }
@@ -166,7 +164,7 @@ class GroupSelectDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener
 
     private inner class GroupAdapter(context: Context) :
         SimpleRecyclerAdapter<BookGroup>(context, R.layout.item_group_select),
-        ItemTouchCallback.OnItemTouchCallbackListener {
+        ItemTouchCallback.Callback {
 
         private var isMoved: Boolean = false
 

app/src/main/java/io/legado/app/ui/book/info/BookInfoViewModel.kt

@@ -119,13 +119,7 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
 
     fun loadGroup(groupId: Long, success: ((groupNames: String?) -> Unit)) {
         execute {
-            val groupNames = arrayListOf<String>()
+            App.db.bookGroupDao().getGroupNames(groupId).joinToString(",")
-            App.db.bookGroupDao().all.forEach {
-                if (groupId and it.groupId > 0) {
-                    groupNames.add(it.groupName)
-                }
-            }
-            groupNames.joinToString(",")
         }.onSuccess {
             success.invoke(it)
         }
@@ -133,23 +127,36 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
 
     fun changeTo(newBook: Book) {
         execute {
+            var oldTocSize: Int = newBook.totalChapterNum
             if (inBookshelf) {
-                bookData.value?.changeTo(newBook)
+                bookData.value?.let {
+                    oldTocSize = it.totalChapterNum
+                    it.changeTo(newBook)
+                }
             }
             bookData.postValue(newBook)
             if (newBook.tocUrl.isEmpty()) {
-                loadBookInfo(newBook, false) { upChangeDurChapterIndex(newBook, it) }
+                loadBookInfo(newBook, false) {
+                    upChangeDurChapterIndex(newBook, oldTocSize, it)
+                }
             } else {
-                loadChapter(newBook) { upChangeDurChapterIndex(newBook, it) }
+                loadChapter(newBook) {
+                    upChangeDurChapterIndex(newBook, oldTocSize, it)
+                }
             }
         }
     }
 
-    private fun upChangeDurChapterIndex(book: Book, chapters: List<BookChapter>) {
+    private fun upChangeDurChapterIndex(
+        book: Book,
+        oldTocSize: Int,
+        chapters: List<BookChapter>
+    ) {
         execute {
-            book.durChapterIndex = BookHelp.getDurChapterIndexByChapterTitle(
+            book.durChapterIndex = BookHelp.getDurChapter(
-                book.durChapterTitle,
                 book.durChapterIndex,
+                oldTocSize,
+                book.durChapterTitle,
                 chapters
             )
             book.durChapterTitle = chapters[book.durChapterIndex].title

app/src/main/java/io/legado/app/ui/book/read/ReadBookViewModel.kt

@@ -157,8 +157,12 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
 
     fun changeTo(newBook: Book) {
         execute {
+            var oldTocSize: Int = newBook.totalChapterNum
             ReadBook.upMsg(null)
-            ReadBook.book?.changeTo(newBook)
+            ReadBook.book?.let {
+                oldTocSize = it.totalChapterNum
+                it.changeTo(newBook)
+            }
             ReadBook.book = newBook
             App.db.bookSourceDao().getBookSource(newBook.origin)?.let {
                 ReadBook.webBook = WebBook(it)
@@ -171,11 +175,11 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
             }
             if (newBook.tocUrl.isEmpty()) {
                 loadBookInfo(newBook) {
-                    upChangeDurChapterIndex(newBook, it)
+                    upChangeDurChapterIndex(newBook, oldTocSize, it)
                 }
             } else {
                 loadChapterList(newBook) {
-                    upChangeDurChapterIndex(newBook, it)
+                    upChangeDurChapterIndex(newBook, oldTocSize, it)
                 }
             }
         }
@@ -208,11 +212,12 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         }
     }
 
-    private fun upChangeDurChapterIndex(book: Book, chapters: List<BookChapter>) {
+    private fun upChangeDurChapterIndex(book: Book, oldTocSize: Int, chapters: List<BookChapter>) {
         execute {
-            ReadBook.durChapterIndex = BookHelp.getDurChapterIndexByChapterTitle(
+            ReadBook.durChapterIndex = BookHelp.getDurChapter(
-                book.durChapterTitle,
                 book.durChapterIndex,
+                oldTocSize,
+                book.durChapterTitle,
                 chapters
             )
             book.durChapterIndex = ReadBook.durChapterIndex

app/src/main/java/io/legado/app/ui/book/read/ReadMenu.kt

@@ -11,7 +11,6 @@ import android.widget.SeekBar
 import androidx.core.view.isVisible
 import io.legado.app.App
 import io.legado.app.R
-import io.legado.app.constant.EventBus
 import io.legado.app.constant.PreferKey
 import io.legado.app.help.AppConfig
 import io.legado.app.help.ReadBookConfig
@@ -193,7 +192,6 @@ class ReadMenu : FrameLayout {
         fabNightTheme.onClick {
             AppConfig.isNightTheme = !AppConfig.isNightTheme
             App.INSTANCE.applyDayNight()
-            postEvent(EventBus.RECREATE, "")
         }
 
         //上一章

app/src/main/java/io/legado/app/ui/book/read/config/TocRegexDialog.kt

@@ -81,8 +81,7 @@ class TocRegexDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
         recycler_view.layoutManager = LinearLayoutManager(requireContext())
         recycler_view.addItemDecoration(VerticalDivider(requireContext()))
         recycler_view.adapter = adapter
-        val itemTouchCallback = ItemTouchCallback()
+        val itemTouchCallback = ItemTouchCallback(adapter)
-        itemTouchCallback.onItemTouchCallbackListener = adapter
         itemTouchCallback.isCanDrag = true
         ItemTouchHelper(itemTouchCallback).attachToRecyclerView(recycler_view)
         tv_cancel.onClick {
@@ -199,7 +198,7 @@ class TocRegexDialog : BaseDialogFragment(), Toolbar.OnMenuItemClickListener {
 
     inner class TocRegexAdapter(context: Context) :
         SimpleRecyclerAdapter<TxtTocRule>(context, R.layout.item_toc_regex),
-        ItemTouchCallback.OnItemTouchCallbackListener {
+        ItemTouchCallback.Callback {
 
         override fun convert(holder: ItemViewHolder, item: TxtTocRule, payloads: MutableList<Any>) {
             holder.itemView.apply {

app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceActivity.kt

@@ -166,8 +166,7 @@ class BookSourceActivity : VMBaseActivity<BookSourceViewModel>(R.layout.activity
         recycler_view.addItemDecoration(VerticalDivider(this))
         adapter = BookSourceAdapter(this, this)
         recycler_view.adapter = adapter
-        val itemTouchCallback = ItemTouchCallback()
+        val itemTouchCallback = ItemTouchCallback(adapter)
-        itemTouchCallback.onItemTouchCallbackListener = adapter
         itemTouchCallback.isCanDrag = true
         val dragSelectTouchHelper: DragSelectTouchHelper =
             DragSelectTouchHelper(adapter.initDragSelectTouchHelperCallback()).setSlideArea(16, 50)

app/src/main/java/io/legado/app/ui/book/source/manage/BookSourceAdapter.kt

@@ -14,7 +14,7 @@ import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.data.entities.BookSource
 import io.legado.app.lib.theme.backgroundColor
 import io.legado.app.ui.widget.recycler.DragSelectTouchHelper
-import io.legado.app.ui.widget.recycler.ItemTouchCallback.OnItemTouchCallbackListener
+import io.legado.app.ui.widget.recycler.ItemTouchCallback.Callback
 import io.legado.app.utils.invisible
 import io.legado.app.utils.visible
 import kotlinx.android.synthetic.main.item_book_source.view.*
@@ -23,7 +23,7 @@ import java.util.*
 
 class BookSourceAdapter(context: Context, val callBack: CallBack) :
     SimpleRecyclerAdapter<BookSource>(context, R.layout.item_book_source),
-    OnItemTouchCallbackListener {
+    Callback {
 
     private val selected = linkedSetOf<BookSource>()
 

app/src/main/java/io/legado/app/ui/filechooser/utils/ConvertUtils.kt

@@ -17,6 +17,7 @@ import java.text.DecimalFormat
  * @author 李玉江[QQ:1023694760]
  * @since 2014-4-18
  */
+@Suppress("MemberVisibilityCanBePrivate")
 object ConvertUtils {
     const val GB: Long = 1073741824
     const val MB: Long = 1048576

app/src/main/java/io/legado/app/ui/main/MainActivity.kt

@@ -178,36 +178,11 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
     private inner class TabFragmentPageAdapter(fm: FragmentManager) :
         FragmentStatePagerAdapter(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT) {
 
-        val bookshelfFragment: Fragment
+        private fun getId(position: Int): Int {
-            get() {
+            return when (position) {
-                if (!fragmentMap.containsKey(0)) {
+                2 -> if (AppConfig.isShowRSS) 2 else 3
-                    fragmentMap[0] = BookshelfFragment()
+                else -> position
-                }
-                return fragmentMap.getValue(0)
-            }
-
-        val exploreFragment: Fragment
-            get() {
-                if (!fragmentMap.containsKey(1)) {
-                    fragmentMap[1] = ExploreFragment()
-                }
-                return fragmentMap.getValue(1)
-            }
-
-        val rssFragment: Fragment
-            get() {
-                if (!fragmentMap.containsKey(2)) {
-                    fragmentMap[2] = RssFragment()
-                }
-                return fragmentMap.getValue(2)
-            }
-
-        val myFragment: Fragment
-            get() {
-                if (!fragmentMap.containsKey(3)) {
-                    fragmentMap[3] = MyFragment()
             }
-                return fragmentMap.getValue(3)
         }
 
         override fun getItemPosition(`object`: Any): Int {
@@ -215,11 +190,11 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
         }
 
         override fun getItem(position: Int): Fragment {
-            return when (position) {
+            return when (getId(position)) {
-                0 -> bookshelfFragment
+                0 -> BookshelfFragment()
-                1 -> exploreFragment
+                1 -> ExploreFragment()
-                2 -> if (AppConfig.isShowRSS) rssFragment else myFragment
+                2 -> RssFragment()
-                else -> myFragment
+                else -> MyFragment()
             }
         }
 
@@ -229,13 +204,7 @@ class MainActivity : VMBaseActivity<MainViewModel>(R.layout.activity_main),
 
         override fun instantiateItem(container: ViewGroup, position: Int): Any {
             val fragment = super.instantiateItem(container, position) as Fragment
-            val id = when (position) {
+            fragmentMap[getId(position)] = fragment
-                2 -> if (AppConfig.isShowRSS) 2 else 3
-                else -> position
-            }
-            if (!fragmentMap.containsKey(id)) {
-                fragmentMap[id] = fragment
-            }
             return fragment
         }
 

app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfFragment.kt

@@ -15,7 +15,6 @@ import io.legado.app.base.VMBaseFragment
 import io.legado.app.constant.AppConst
 import io.legado.app.constant.PreferKey
 import io.legado.app.data.entities.BookGroup
-import io.legado.app.help.AppConfig
 import io.legado.app.lib.dialogs.alert
 import io.legado.app.lib.dialogs.customView
 import io.legado.app.lib.dialogs.noButton
@@ -36,26 +35,22 @@ import kotlinx.android.synthetic.main.dialog_edit_text.view.*
 import kotlinx.android.synthetic.main.fragment_bookshelf.*
 import kotlinx.android.synthetic.main.view_tab_layout.*
 import kotlinx.android.synthetic.main.view_title_bar.*
-import kotlinx.coroutines.Dispatchers.IO
-import kotlinx.coroutines.launch
-import kotlinx.coroutines.withContext
-import org.jetbrains.anko.startActivity
-
 
+/**
+ * 书架界面
+ */
 class BookshelfFragment : VMBaseFragment<BookshelfViewModel>(R.layout.fragment_bookshelf),
     TabLayout.OnTabSelectedListener,
-    SearchView.OnQueryTextListener,
+    SearchView.OnQueryTextListener {
-    GroupManageDialog.CallBack {
 
     override val viewModel: BookshelfViewModel
         get() = getViewModel(BookshelfViewModel::class.java)
     private val activityViewModel: MainViewModel
         get() = getViewModelOfActivity(MainViewModel::class.java)
+    private lateinit var adapter: FragmentStatePagerAdapter
     private var bookGroupLiveData: LiveData<List<BookGroup>>? = null
-    private var noGroupLiveData: LiveData<Int>? = null
     private val bookGroups = mutableListOf<BookGroup>()
     private val fragmentMap = hashMapOf<Long, BooksFragment>()
-    private var showGroupNone = false
 
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
         setSupportToolbar(toolbar)
@@ -104,63 +99,21 @@ class BookshelfFragment : VMBaseFragment<BookshelfViewModel>(R.layout.fragment_b
         tab_layout.setSelectedTabIndicatorColor(requireContext().accentColor)
         tab_layout.setupWithViewPager(view_pager_bookshelf)
         view_pager_bookshelf.offscreenPageLimit = 1
-        view_pager_bookshelf.adapter = TabFragmentPageAdapter(childFragmentManager)
+        adapter = TabFragmentPageAdapter(childFragmentManager)
+        view_pager_bookshelf.adapter = adapter
     }
 
     private fun initBookGroupData() {
         bookGroupLiveData?.removeObservers(viewLifecycleOwner)
-        bookGroupLiveData = App.db.bookGroupDao().liveDataAll()
+        bookGroupLiveData = App.db.bookGroupDao().liveDataShow()
         bookGroupLiveData?.observe(viewLifecycleOwner, {
             viewModel.checkGroup(it)
-            launch {
+            upGroup(it)
-                synchronized(this) {
-                    tab_layout.removeOnTabSelectedListener(this@BookshelfFragment)
-                }
-                var noGroupSize = 0
-                withContext(IO) {
-                    if (AppConfig.bookGroupNoneShow) {
-                        noGroupSize = App.db.bookDao().noGroupSize
-                    }
-                }
-                synchronized(this@BookshelfFragment) {
-                    bookGroups.clear()
-                    if (AppConfig.bookGroupAllShow) {
-                        bookGroups.add(AppConst.bookGroupAll)
-                    }
-                    if (AppConfig.bookGroupLocalShow) {
-                        bookGroups.add(AppConst.bookGroupLocal)
-                    }
-                    if (AppConfig.bookGroupAudioShow) {
-                        bookGroups.add(AppConst.bookGroupAudio)
-                    }
-                    showGroupNone = if (noGroupSize > 0 && it.isNotEmpty()) {
-                        bookGroups.add(AppConst.bookGroupNone)
-                        true
-                    } else {
-                        false
-                    }
-                    bookGroups.addAll(it)
-                    view_pager_bookshelf.adapter?.notifyDataSetChanged()
-                    tab_layout.getTabAt(getPrefInt(PreferKey.saveTabPosition, 0))?.select()
-                    tab_layout.addOnTabSelectedListener(this@BookshelfFragment)
-                }
-            }
-        })
-        noGroupLiveData?.removeObservers(viewLifecycleOwner)
-        noGroupLiveData = App.db.bookDao().observeNoGroupSize()
-        noGroupLiveData?.observe(viewLifecycleOwner, {
-            if (it > 0 && !showGroupNone && AppConfig.bookGroupNoneShow) {
-                showGroupNone = true
-                upGroup()
-            } else if (it == 0 && showGroupNone) {
-                showGroupNone = false
-                upGroup()
-            }
         })
     }
 
     override fun onQueryTextSubmit(query: String?): Boolean {
-        context?.startActivity<SearchActivity>(Pair("key", query))
+        startActivity<SearchActivity>(Pair("key", query))
         return false
     }
 
@@ -168,38 +121,23 @@ class BookshelfFragment : VMBaseFragment<BookshelfViewModel>(R.layout.fragment_b
         return false
     }
 
-    override fun upGroup() {
+    @Synchronized
-        launch {
+    private fun upGroup(data: List<BookGroup>) {
-            var noGroupSize = 0
+        if (data.isEmpty()) {
-            withContext(IO) {
+            App.db.bookGroupDao().enableGroup(AppConst.bookGroupAllId)
-                if (AppConfig.bookGroupNoneShow) {
-                    noGroupSize = App.db.bookDao().noGroupSize
-                }
-            }
-            synchronized(this@BookshelfFragment) {
-                bookGroups.remove(AppConst.bookGroupAll)
-                bookGroups.remove(AppConst.bookGroupLocal)
-                bookGroups.remove(AppConst.bookGroupAudio)
-                bookGroups.remove(AppConst.bookGroupNone)
-                showGroupNone =
-                    if (noGroupSize > 0 && bookGroups.isNotEmpty()) {
-                        bookGroups.add(0, AppConst.bookGroupNone)
-                        true
         } else {
-                        false
+            bookGroups.clear()
-                    }
+            bookGroups.addAll(data)
-                if (AppConfig.bookGroupAudioShow) {
+            adapter.notifyDataSetChanged()
-                    bookGroups.add(0, AppConst.bookGroupAudio)
+            selectLastTab()
-                }
-                if (AppConfig.bookGroupLocalShow) {
-                    bookGroups.add(0, AppConst.bookGroupLocal)
-                }
-                if (AppConfig.bookGroupAllShow) {
-                    bookGroups.add(0, AppConst.bookGroupAll)
-                }
-                view_pager_bookshelf.adapter?.notifyDataSetChanged()
         }
     }
+
+    @Synchronized
+    private fun selectLastTab() {
+        tab_layout.removeOnTabSelectedListener(this)
+        tab_layout.getTabAt(getPrefInt(PreferKey.saveTabPosition, 0))?.select()
+        tab_layout.addOnTabSelectedListener(this)
     }
 
     @SuppressLint("InflateParams")
@@ -252,14 +190,12 @@ class BookshelfFragment : VMBaseFragment<BookshelfViewModel>(R.layout.fragment_b
             }.show().applyTint()
     }
 
-    override fun onTabReselected(tab: TabLayout.Tab?) = Unit
+    override fun onTabReselected(tab: TabLayout.Tab) = Unit
 
-    override fun onTabUnselected(tab: TabLayout.Tab?) = Unit
+    override fun onTabUnselected(tab: TabLayout.Tab) = Unit
 
-    override fun onTabSelected(tab: TabLayout.Tab?) {
+    override fun onTabSelected(tab: TabLayout.Tab) {
-        tab?.position?.let {
+        putPrefInt(PreferKey.saveTabPosition, tab.position)
-            putPrefInt(PreferKey.saveTabPosition, it)
-        }
     }
 
     fun gotoTop() {
@@ -294,9 +230,7 @@ class BookshelfFragment : VMBaseFragment<BookshelfViewModel>(R.layout.fragment_b
         override fun instantiateItem(container: ViewGroup, position: Int): Any {
             val fragment = super.instantiateItem(container, position) as BooksFragment
             val group = bookGroups[position]
-            if (!fragmentMap.containsKey(group.groupId)) {
             fragmentMap[group.groupId] = fragment
-            }
             return fragment
         }
 

app/src/main/java/io/legado/app/ui/main/bookshelf/BookshelfViewModel.kt

@@ -63,9 +63,8 @@ class BookshelfViewModel(application: Application) : BaseViewModel(application)
     }
 
     fun checkGroup(groups: List<BookGroup>) {
-        execute {
         groups.forEach { group ->
-                if (group.groupId and (group.groupId - 1) != 0L) {
+            if (group.groupId >= 0 && group.groupId and (group.groupId - 1) != 0L) {
                 var id = 1L
                 val idsSum = App.db.bookGroupDao().idsSum
                 while (id and idsSum != 0L) {
@@ -77,6 +76,5 @@ class BookshelfViewModel(application: Application) : BaseViewModel(application)
             }
         }
     }
-    }
 
 }

app/src/main/java/io/legado/app/ui/main/bookshelf/books/BooksFragment.kt

@@ -29,7 +29,6 @@ import io.legado.app.utils.getViewModelOfActivity
 import io.legado.app.utils.observeEvent
 import io.legado.app.utils.startActivity
 import kotlinx.android.synthetic.main.fragment_books.*
-import org.jetbrains.anko.startActivity
 import kotlin.math.max
 
 /**
@@ -61,7 +60,6 @@ class BooksFragment : BaseFragment(R.layout.fragment_books),
             position = it.getInt("position", 0)
             groupId = it.getLong("groupId", -1)
         }
-        tv_empty_msg.setText(R.string.bookshelf_empty)
         initRecyclerView()
         upRecyclerData()
     }
@@ -104,10 +102,10 @@ class BooksFragment : BaseFragment(R.layout.fragment_books),
     private fun upRecyclerData() {
         bookshelfLiveData?.removeObservers(this)
         bookshelfLiveData = when (groupId) {
-            AppConst.bookGroupAll.groupId -> App.db.bookDao().observeAll()
+            AppConst.bookGroupAllId -> App.db.bookDao().observeAll()
-            AppConst.bookGroupLocal.groupId -> App.db.bookDao().observeLocal()
+            AppConst.bookGroupLocalId -> App.db.bookDao().observeLocal()
-            AppConst.bookGroupAudio.groupId -> App.db.bookDao().observeAudio()
+            AppConst.bookGroupAudioId -> App.db.bookDao().observeAudio()
-            AppConst.bookGroupNone.groupId -> App.db.bookDao().observeNoGroup()
+            AppConst.bookGroupNoneId -> App.db.bookDao().observeNoGroup()
             else -> App.db.bookDao().observeByGroup(groupId)
         }
         bookshelfLiveData?.observe(this, { list ->
@@ -139,8 +137,8 @@ class BooksFragment : BaseFragment(R.layout.fragment_books),
     override fun open(book: Book) {
         when (book.type) {
             BookType.audio ->
-                context?.startActivity<AudioPlayActivity>(Pair("bookUrl", book.bookUrl))
+                startActivity<AudioPlayActivity>(Pair("bookUrl", book.bookUrl))
-            else -> context?.startActivity<ReadBookActivity>(
+            else -> startActivity<ReadBookActivity>(
                 Pair("bookUrl", book.bookUrl),
                 Pair("key", IntentDataHelp.putData(book))
             )

app/src/main/java/io/legado/app/ui/main/explore/ExploreFragment.kt

@@ -24,7 +24,7 @@ import io.legado.app.ui.book.source.edit.BookSourceEditActivity
 import io.legado.app.utils.getViewModel
 import io.legado.app.utils.splitNotBlank
 import io.legado.app.utils.startActivity
-import kotlinx.android.synthetic.main.fragment_find_book.*
+import kotlinx.android.synthetic.main.fragment_explore.*
 import kotlinx.android.synthetic.main.view_search.*
 import kotlinx.android.synthetic.main.view_title_bar.*
 import java.text.Collator
@@ -32,7 +32,7 @@ import java.text.Collator
 /**
  * 发现界面
  */
-class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_find_book),
+class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_explore),
     ExploreAdapter.CallBack {
     override val viewModel: ExploreViewModel
         get() = getViewModel(ExploreViewModel::class.java)
@@ -46,7 +46,6 @@ class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_find_
 
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
         setSupportToolbar(toolbar)
-        tv_empty_msg.setText(R.string.explore_empty)
         initSearchView()
         initRecyclerView()
         initGroupData()
@@ -115,7 +114,7 @@ class ExploreFragment : VMBaseFragment<ExploreViewModel>(R.layout.fragment_find_
             App.db.bookSourceDao().liveExplore("%$key%")
         }
         liveExplore?.observe(viewLifecycleOwner, {
-            tv_empty_msg.isGone = it.isNotEmpty()
+            tv_empty_msg.isGone = it.isNotEmpty() || search_view.query.isNotEmpty()
             val diffResult = DiffUtil
                 .calculateDiff(ExploreDiffCallBack(ArrayList(adapter.getItems()), it))
             adapter.setItems(it)

app/src/main/java/io/legado/app/ui/main/rss/RssFragment.kt

@@ -34,7 +34,6 @@ class RssFragment : VMBaseFragment<RssSourceViewModel>(R.layout.fragment_rss),
 
     override fun onFragmentCreated(view: View, savedInstanceState: Bundle?) {
         setSupportToolbar(toolbar)
-        tv_empty_msg.setText(R.string.rss_source_empty)
         initRecyclerView()
         initData()
     }

app/src/main/java/io/legado/app/ui/replace/ReplaceRuleActivity.kt

@@ -87,8 +87,7 @@ class ReplaceRuleActivity :
         adapter = ReplaceRuleAdapter(this, this)
         recycler_view.adapter = adapter
         recycler_view.addItemDecoration(VerticalDivider(this))
-        val itemTouchCallback = ItemTouchCallback()
+        val itemTouchCallback = ItemTouchCallback(adapter)
-        itemTouchCallback.onItemTouchCallbackListener = adapter
         itemTouchCallback.isCanDrag = true
         val dragSelectTouchHelper: DragSelectTouchHelper =
             DragSelectTouchHelper(adapter.initDragSelectTouchHelperCallback()).setSlideArea(16, 50)

app/src/main/java/io/legado/app/ui/replace/ReplaceRuleAdapter.kt

@@ -20,7 +20,7 @@ import java.util.*
 
 class ReplaceRuleAdapter(context: Context, var callBack: CallBack) :
     SimpleRecyclerAdapter<ReplaceRule>(context, R.layout.item_replace_rule),
-    ItemTouchCallback.OnItemTouchCallbackListener {
+    ItemTouchCallback.Callback {
 
     private val selected = linkedSetOf<ReplaceRule>()
 

app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceActivity.kt

@@ -114,8 +114,7 @@ class RssSourceActivity : VMBaseActivity<RssSourceViewModel>(R.layout.activity_r
         recycler_view.addItemDecoration(VerticalDivider(this))
         adapter = RssSourceAdapter(this, this)
         recycler_view.adapter = adapter
-        val itemTouchCallback = ItemTouchCallback()
+        val itemTouchCallback = ItemTouchCallback(adapter)
-        itemTouchCallback.onItemTouchCallbackListener = adapter
         itemTouchCallback.isCanDrag = true
         val dragSelectTouchHelper: DragSelectTouchHelper =
             DragSelectTouchHelper(adapter.initDragSelectTouchHelperCallback()).setSlideArea(16, 50)

app/src/main/java/io/legado/app/ui/rss/source/manage/RssSourceAdapter.kt

@@ -19,7 +19,7 @@ import java.util.*
 
 class RssSourceAdapter(context: Context, val callBack: CallBack) :
     SimpleRecyclerAdapter<RssSource>(context, R.layout.item_rss_source),
-    ItemTouchCallback.OnItemTouchCallbackListener {
+    ItemTouchCallback.Callback {
 
     private val selected = linkedSetOf<RssSource>()
 

app/src/main/java/io/legado/app/ui/widget/LabelsBar.kt

@@ -7,7 +7,7 @@ import android.widget.TextView
 import io.legado.app.ui.widget.text.AccentBgTextView
 import io.legado.app.utils.dp
 
-@Suppress("unused")
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 class LabelsBar(context: Context, attrs: AttributeSet?) : LinearLayout(context, attrs) {
 
     private val unUsedViews = arrayListOf<TextView>()

app/src/main/java/io/legado/app/ui/widget/SearchView.kt

@@ -1,5 +1,6 @@
 package io.legado.app.ui.widget
 
+import android.annotation.SuppressLint
 import android.app.SearchableInfo
 import android.content.Context
 import android.graphics.Canvas
@@ -30,6 +31,7 @@ class SearchView : SearchView {
         defStyleAttr: Int
     ) : super(context, attrs, defStyleAttr)
 
+    @SuppressLint("UseCompatLoadingForDrawables")
     override fun onLayout(
         changed: Boolean,
         left: Int,

app/src/main/java/io/legado/app/ui/widget/SelectActionBar.kt

@@ -16,6 +16,7 @@ import io.legado.app.utils.visible
 import kotlinx.android.synthetic.main.view_select_action_bar.view.*
 import org.jetbrains.anko.sdk27.listeners.onClick
 
+@Suppress("unused")
 class SelectActionBar(context: Context, attrs: AttributeSet?) : FrameLayout(context, attrs) {
     private var callBack: CallBack? = null
     private var selMenu: PopupMenu? = null

app/src/main/java/io/legado/app/ui/widget/ShadowLayout.kt

@@ -17,6 +17,7 @@ import io.legado.app.utils.getCompatColor
  *
  * Created by lijiankun on 17/8/11.
  */
+@Suppress("unused")
 class ShadowLayout(
     context: Context,
     attrs: AttributeSet? = null

app/src/main/java/io/legado/app/ui/widget/TitleBar.kt

@@ -21,6 +21,7 @@ import org.jetbrains.anko.backgroundColor
 import org.jetbrains.anko.bottomPadding
 import org.jetbrains.anko.topPadding
 
+@Suppress("unused")
 class TitleBar(context: Context, attrs: AttributeSet?) : AppBarLayout(context, attrs) {
 
     val toolbar: Toolbar

app/src/main/java/io/legado/app/ui/widget/anima/RefreshProgressBar.kt

@@ -11,6 +11,7 @@ import android.view.View
 
 import io.legado.app.R
 
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 class RefreshProgressBar @JvmOverloads constructor(
     context: Context,
     attrs: AttributeSet? = null,

app/src/main/java/io/legado/app/ui/widget/anima/RotateLoading.kt

@@ -17,6 +17,7 @@ import io.legado.app.utils.dp
  * RotateLoading
  * Created by Victor on 2015/4/28.
  */
+@Suppress("MemberVisibilityCanBePrivate")
 class RotateLoading : View {
 
     private lateinit var mPaint: Paint

app/src/main/java/io/legado/app/ui/widget/anima/explosion_field/ExplosionAnimator.kt

@@ -20,6 +20,7 @@ import android.graphics.*
 import android.view.View
 import android.view.animation.AccelerateInterpolator
 import java.util.*
+import kotlin.math.pow
 
 class ExplosionAnimator(private val mContainer: View, bitmap: Bitmap, bound: Rect) :
     ValueAnimator() {
@@ -99,20 +100,20 @@ class ExplosionAnimator(private val mContainer: View, bitmap: Bitmap, bound: Rec
     }
 
     private inner class Particle {
-        internal var alpha: Float = 0.toFloat()
+        var alpha: Float = 0.toFloat()
-        internal var color: Int = 0
+        var color: Int = 0
-        internal var cx: Float = 0.toFloat()
+        var cx: Float = 0.toFloat()
-        internal var cy: Float = 0.toFloat()
+        var cy: Float = 0.toFloat()
-        internal var radius: Float = 0.toFloat()
+        var radius: Float = 0.toFloat()
-        internal var baseCx: Float = 0.toFloat()
+        var baseCx: Float = 0.toFloat()
-        internal var baseCy: Float = 0.toFloat()
+        var baseCy: Float = 0.toFloat()
-        internal var baseRadius: Float = 0.toFloat()
+        var baseRadius: Float = 0.toFloat()
-        internal var top: Float = 0.toFloat()
+        var top: Float = 0.toFloat()
-        internal var bottom: Float = 0.toFloat()
+        var bottom: Float = 0.toFloat()
-        internal var mag: Float = 0.toFloat()
+        var mag: Float = 0.toFloat()
-        internal var neg: Float = 0.toFloat()
+        var neg: Float = 0.toFloat()
-        internal var life: Float = 0.toFloat()
+        var life: Float = 0.toFloat()
-        internal var overflow: Float = 0.toFloat()
+        var overflow: Float = 0.toFloat()
 
 
         fun advance(factor: Float) {
@@ -130,7 +131,7 @@ class ExplosionAnimator(private val mContainer: View, bitmap: Bitmap, bound: Rec
             alpha = 1f - f
             f = bottom * f2
             cx = baseCx + f
-            cy = (baseCy - this.neg * Math.pow(f.toDouble(), 2.0)).toFloat() - f * mag
+            cy = (baseCy - this.neg * f.toDouble().pow(2.0)).toFloat() - f * mag
             radius = V + (baseRadius - V) * f2
         }
     }

app/src/main/java/io/legado/app/ui/widget/anima/explosion_field/ExplosionView.kt

@@ -29,6 +29,7 @@ import android.view.View
 import java.util.*
 
 
+@Suppress("unused")
 class ExplosionView : View {
 
     private var customDuration = ExplosionAnimator.DEFAULT_DURATION
@@ -75,8 +76,8 @@ class ExplosionView : View {
         this.customDuration = customDuration
     }
 
-    fun addActionEvent(ievents: OnAnimatorListener) {
+    fun addActionEvent(iEvents: OnAnimatorListener) {
-        this.mZAnimatorListener = ievents
+        this.mZAnimatorListener = iEvents
     }
 
 

app/src/main/java/io/legado/app/ui/widget/dynamiclayout/DynamicFrameLayout.kt

@@ -12,6 +12,7 @@ import androidx.appcompat.widget.AppCompatTextView
 import io.legado.app.R
 import kotlinx.android.synthetic.main.view_dynamic.view.*
 
+@Suppress("unused")
 class DynamicFrameLayout(context: Context, attrs: AttributeSet?) : FrameLayout(context, attrs), ViewSwitcher {
 
     private var errorView: View? = null

app/src/main/java/io/legado/app/ui/widget/image/CircleImageView.kt

@@ -24,6 +24,7 @@ import io.legado.app.utils.sp
 import kotlin.math.min
 import kotlin.math.pow
 
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 class CircleImageView(context: Context, attrs: AttributeSet) :
     AppCompatImageView(
         context,

app/src/main/java/io/legado/app/ui/widget/image/CoverImageView.kt

@@ -16,7 +16,10 @@ import io.legado.app.constant.PreferKey
 import io.legado.app.help.ImageLoader
 import io.legado.app.utils.getPrefString
 
-
+/**
+ * 封面
+ */
+@Suppress("unused")
 class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
     internal var width: Float = 0.toFloat()
     internal var height: Float = 0.toFloat()
@@ -171,6 +174,7 @@ class CoverImageView : androidx.appcompat.widget.AppCompatImageView {
             upDefaultCover()
         }
 
+        @SuppressLint("UseCompatLoadingForDrawables")
         fun upDefaultCover() {
             val path = App.INSTANCE.getPrefString(PreferKey.defaultCover)
             var dw = Drawable.createFromPath(path)

app/src/main/java/io/legado/app/ui/widget/image/PhotoView.kt

@@ -24,6 +24,7 @@ import kotlin.math.abs
 import kotlin.math.roundToInt
 
 
+@Suppress("UNUSED_PARAMETER", "unused", "MemberVisibilityCanBePrivate")
 @SuppressLint("AppCompatCustomView")
 class PhotoView : ImageView {
     val MIN_ROTATE = 35
@@ -197,6 +198,7 @@ class PhotoView : ImageView {
         MAX_ANIM_FROM_WAITE = wait
     }
 
+    @SuppressLint("UseCompatLoadingForDrawables")
     override fun setImageResource(resId: Int) {
         var drawable: Drawable? = null
         try {
@@ -832,7 +834,7 @@ class PhotoView : ImageView {
 
     }
 
-    private inner class Transform internal constructor() : Runnable {
+    private inner class Transform : Runnable {
         var isRunning = false
         var mTranslateScroller: OverScroller
         var mFlingScroller: OverScroller
@@ -1230,7 +1232,7 @@ class PhotoView : ImageView {
             val scale = if (scaleX > scaleY) scaleX else scaleY
             mAnimMatrix.postRotate(mDegrees, mScaleCenter.x, mScaleCenter.y)
             mAnimMatrix.mapRect(mImgRect, mBaseRect)
-            mDegrees = mDegrees % 360
+            mDegrees %= 360
             mTranslate.withTranslate(
                 0,
                 0,

app/src/main/java/io/legado/app/ui/widget/image/photo/Info.kt

@@ -6,6 +6,7 @@ import android.graphics.RectF
 import android.widget.ImageView
 
 
+@Suppress("MemberVisibilityCanBePrivate")
 class Info(
     rect: RectF,
     img: RectF,

app/src/main/java/io/legado/app/ui/widget/image/photo/RotateGestureDetector.kt

@@ -26,26 +26,26 @@ class RotateGestureDetector(private val mListener: OnRotateListener) {
             MotionEvent.ACTION_MOVE -> if (event.pointerCount > 1) {
                 mCurrSlope = calculateSlope(event)
 
-                val currDegrees = Math.toDegrees(atan(mCurrSlope.toDouble()));
+                val currDegrees = Math.toDegrees(atan(mCurrSlope.toDouble()))
-                val prevDegrees = Math.toDegrees(atan(mPrevSlope.toDouble()));
+                val prevDegrees = Math.toDegrees(atan(mPrevSlope.toDouble()))
 
-                val deltaSlope = currDegrees - prevDegrees;
+                val deltaSlope = currDegrees - prevDegrees
 
                 if (abs(deltaSlope) <= MAX_DEGREES_STEP) {
-                    mListener.onRotate(deltaSlope.toFloat(), (x2 + x1) / 2, (y2 + y1) / 2);
+                    mListener.onRotate(deltaSlope.toFloat(), (x2 + x1) / 2, (y2 + y1) / 2)
                 }
-                mPrevSlope = mCurrSlope;
+                mPrevSlope = mCurrSlope
             }
         }
 
     }
 
     private fun calculateSlope(event: MotionEvent): Float {
-        val x1 = event.getX(0);
+        val x1 = event.getX(0)
-        val y1 = event.getY(0);
+        val y1 = event.getY(0)
-        val x2 = event.getX(1);
+        val x2 = event.getX(1)
-        val y2 = event.getY(1);
+        val y2 = event.getY(1)
-        return (y2 - y1) / (x2 - x1);
+        return (y2 - y1) / (x2 - x1)
     }
 }
 

app/src/main/java/io/legado/app/ui/widget/number/NumberPickerDialog.kt

@@ -48,7 +48,7 @@ class NumberPickerDialog(context: Context) {
                 listener?.invoke()
             }
         }
-        return this;
+        return this
     }
 
     fun show(callBack: ((value: Int) -> Unit)?) {

app/src/main/java/io/legado/app/ui/widget/prefs/ColorPreference.kt

@@ -16,6 +16,7 @@ import com.jaredrummler.android.colorpicker.*
 import io.legado.app.lib.theme.ATH
 import io.legado.app.utils.ColorUtils
 
+@Suppress("MemberVisibilityCanBePrivate", "unused")
 class ColorPreference(context: Context, attrs: AttributeSet) : Preference(context, attrs),
     ColorPickerDialogListener {
 

app/src/main/java/io/legado/app/ui/widget/recycler/DividerNoLast.kt

@@ -14,6 +14,7 @@ import kotlin.math.roundToInt
 /**
  * 不画最后一条分隔线
  */
+@Suppress("MemberVisibilityCanBePrivate", "RedundantRequireNotNullCall", "unused")
 class DividerNoLast(context: Context, orientation: Int) :
     RecyclerView.ItemDecoration() {
 

app/src/main/java/io/legado/app/ui/widget/recycler/DragSelectTouchHelper.kt

@@ -51,7 +51,7 @@ import kotlin.math.min
  *  |                   | ----------------------------------------------> |                       |
  *  +-------------------+                                                 +-----------------------+
  */
-@Suppress("unused")
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 class DragSelectTouchHelper(
     /**
      * Developer callback which controls the behavior of DragSelectTouchHelper.

app/src/main/java/io/legado/app/ui/widget/recycler/ItemTouchCallback.kt

@@ -12,20 +12,17 @@ import androidx.viewpager.widget.ViewPager
  * Created by GKF on 2018/3/16.
  */
 
-class ItemTouchCallback : ItemTouchHelper.Callback() {
+@Suppress("MemberVisibilityCanBePrivate")
+class ItemTouchCallback(private val callback: Callback) : ItemTouchHelper.Callback() {
 
     private var swipeRefreshLayout: SwipeRefreshLayout? = null
     private var viewPager: ViewPager? = null
 
-    /**
-     * Item操作的回调
-     */
-    var onItemTouchCallbackListener: OnItemTouchCallbackListener? = null
-
     /**
      * 是否可以拖拽
      */
     var isCanDrag = false
+
     /**
      * 是否可以被滑动
      */
@@ -88,13 +85,11 @@ class ItemTouchCallback : ItemTouchHelper.Callback() {
         srcViewHolder: RecyclerView.ViewHolder,
         targetViewHolder: RecyclerView.ViewHolder
     ): Boolean {
-        return onItemTouchCallbackListener
+        return callback.onMove(srcViewHolder.adapterPosition, targetViewHolder.adapterPosition)
-            ?.onMove(srcViewHolder.adapterPosition, targetViewHolder.adapterPosition)
-            ?: false
     }
 
     override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
-        onItemTouchCallbackListener?.onSwiped(viewHolder.adapterPosition)
+        callback.onSwiped(viewHolder.adapterPosition)
     }
 
     override fun onSelectedChanged(viewHolder: RecyclerView.ViewHolder?, actionState: Int) {
@@ -106,10 +101,10 @@ class ItemTouchCallback : ItemTouchHelper.Callback() {
 
     override fun clearView(recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder) {
         super.clearView(recyclerView, viewHolder)
-        onItemTouchCallbackListener?.onClearView(recyclerView, viewHolder)
+        callback.onClearView(recyclerView, viewHolder)
     }
 
-    interface OnItemTouchCallbackListener {
+    interface Callback {
 
         /**
          * 当某个Item被滑动删除的时候

app/src/main/java/io/legado/app/ui/widget/recycler/LoadMoreView.kt

@@ -9,6 +9,7 @@ import io.legado.app.utils.invisible
 import io.legado.app.utils.visible
 import kotlinx.android.synthetic.main.view_load_more.view.*
 
+@Suppress("unused")
 class LoadMoreView(context: Context) : FrameLayout(context) {
 
     var hasMore = true

app/src/main/java/io/legado/app/ui/widget/recycler/UpLinearLayoutManager.kt

@@ -4,6 +4,7 @@ import android.content.Context
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.LinearSmoothScroller
 
+@Suppress("MemberVisibilityCanBePrivate", "unused")
 class UpLinearLayoutManager(val context: Context) : LinearLayoutManager(context) {
 
     fun smoothScrollToPosition(position: Int) {

app/src/main/java/io/legado/app/ui/widget/recycler/scroller/FastScrollRecyclerView.kt

@@ -7,6 +7,7 @@ import androidx.annotation.ColorInt
 import androidx.recyclerview.widget.RecyclerView
 import io.legado.app.R
 
+@Suppress("MemberVisibilityCanBePrivate", "unused")
 class FastScrollRecyclerView : RecyclerView {
 
     private lateinit var mFastScroller: FastScroller

app/src/main/java/io/legado/app/ui/widget/recycler/scroller/FastScroller.kt

@@ -33,9 +33,11 @@ import kotlin.math.min
 import kotlin.math.roundToInt
 
 
+@Suppress("SameParameterValue")
 class FastScroller : LinearLayout {
     @ColorInt
     private var mBubbleColor: Int = 0
+
     @ColorInt
     private var mHandleColor: Int = 0
     private var mBubbleHeight: Int = 0

app/src/main/java/io/legado/app/ui/widget/seekbar/VerticalSeekBar.kt

@@ -16,6 +16,7 @@ import io.legado.app.lib.theme.ThemeStore
 import java.lang.reflect.InvocationTargetException
 import java.lang.reflect.Method
 
+@Suppress("SameParameterValue")
 class VerticalSeekBar : AppCompatSeekBar {
 
     private var mIsDragging: Boolean = false

app/src/main/java/io/legado/app/utils/ACache.kt

@@ -22,7 +22,7 @@ import kotlin.math.min
 /**
  * 本地缓存
  */
-@Suppress("unused")
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 class ACache private constructor(cacheDir: File, max_size: Long, max_count: Int) {
 
     companion object {
@@ -543,6 +543,7 @@ class ACache private constructor(cacheDir: File, max_size: Long, max_count: Int)
             return null
         }
 
+        @Suppress("SameParameterValue")
         private fun indexOf(data: ByteArray, c: Char): Int {
             for (i in data.indices) {
                 if (data[i] == c.toByte()) {

app/src/main/java/io/legado/app/utils/BitmapUtils.kt

@@ -16,7 +16,7 @@ import java.io.IOException
 import kotlin.math.*
 
 
-@Suppress("unused", "WeakerAccess")
+@Suppress("unused", "WeakerAccess", "MemberVisibilityCanBePrivate")
 object BitmapUtils {
 
     /**

app/src/main/java/io/legado/app/utils/ColorUtils.kt

@@ -7,7 +7,7 @@ import androidx.annotation.FloatRange
 import java.util.*
 import kotlin.math.*
 
-@Suppress("unused")
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 object ColorUtils {
 
     fun intToString(intColor: Int): String {

app/src/main/java/io/legado/app/utils/ConstraintUtil.kt

@@ -6,6 +6,7 @@ import androidx.constraintlayout.widget.ConstraintSet
 import androidx.transition.TransitionManager
 
 
+@Suppress("MemberVisibilityCanBePrivate", "unused")
 class ConstraintUtil(private val constraintLayout: ConstraintLayout) {
 
     private var begin: ConstraintBegin? = null
@@ -55,6 +56,7 @@ class ConstraintUtil(private val constraintLayout: ConstraintLayout) {
 
 }
 
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 class ConstraintBegin(
     private val constraintLayout: ConstraintLayout,
     private val applyConstraintSet: ConstraintSet

app/src/main/java/io/legado/app/utils/DocumentUtils.kt

@@ -8,6 +8,7 @@ import androidx.documentfile.provider.DocumentFile
 import java.util.*
 
 
+@Suppress("MemberVisibilityCanBePrivate")
 object DocumentUtils {
 
     fun exists(root: DocumentFile, fileName: String, vararg subDirs: String): Boolean {

app/src/main/java/io/legado/app/utils/EventBusExtensions.kt

@@ -1,3 +1,5 @@
+@file:Suppress("unused")
+
 package io.legado.app.utils
 
 import androidx.appcompat.app.AppCompatActivity

app/src/main/java/io/legado/app/utils/FileUtils.kt

@@ -11,7 +11,7 @@ import java.text.SimpleDateFormat
 import java.util.*
 import java.util.regex.Pattern
 
-@Suppress("unused")
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 object FileUtils {
 
     fun exists(root: File, vararg subDirFiles: String): Boolean {
@@ -489,11 +489,10 @@ object FileUtils {
      */
     @JvmOverloads
     fun writeText(filepath: String, content: String, charset: String = "utf-8"): Boolean {
-        try {
+        return try {
             writeBytes(filepath, content.toByteArray(charset(charset)))
-            return true
         } catch (e: UnsupportedEncodingException) {
-            return false
+            false
         }
 
     }
@@ -569,15 +568,15 @@ object FileUtils {
      * 获取文件名（不包括扩展名）
      */
     fun getNameExcludeExtension(path: String): String {
-        try {
+        return try {
             var fileName = File(path).name
             val lastIndexOf = fileName.lastIndexOf(".")
             if (lastIndexOf != -1) {
                 fileName = fileName.substring(0, lastIndexOf)
             }
-            return fileName
+            fileName
         } catch (e: Exception) {
-            return ""
+            ""
         }
 
     }

app/src/main/java/io/legado/app/utils/FloatExtensions.kt

@@ -1,3 +1,5 @@
+@file:Suppress("unused")
+
 package io.legado.app.utils
 
 import android.content.res.Resources
@@ -7,7 +9,6 @@ val Float.dp: Float
         android.util.TypedValue.COMPLEX_UNIT_DIP, this, Resources.getSystem().displayMetrics
     )
 
-
 val Float.sp: Float
     get() = android.util.TypedValue.applyDimension(
         android.util.TypedValue.COMPLEX_UNIT_SP, this, Resources.getSystem().displayMetrics

app/src/main/java/io/legado/app/utils/FragmentExtensions.kt

@@ -1,3 +1,5 @@
+@file:Suppress("unused")
+
 package io.legado.app.utils
 
 import android.app.Activity
@@ -14,7 +16,8 @@ import org.jetbrains.anko.defaultSharedPreferences
 import org.jetbrains.anko.internals.AnkoInternals
 
 @Suppress("DEPRECATION")
-fun Fragment.isOnline() = requireContext().connectivityManager.activeNetworkInfo?.isConnected == true
+fun Fragment.isOnline() =
+    requireContext().connectivityManager.activeNetworkInfo?.isConnected == true
 
 fun Fragment.getPrefBoolean(key: String, defValue: Boolean = false) =
     requireContext().defaultSharedPreferences.getBoolean(key, defValue)
@@ -40,7 +43,10 @@ fun Fragment.getPrefString(key: String, defValue: String? = null) =
 fun Fragment.putPrefString(key: String, value: String) =
     requireContext().defaultSharedPreferences.edit { putString(key, value) }
 
-fun Fragment.getPrefStringSet(key: String, defValue: MutableSet<String>? = null) =
+fun Fragment.getPrefStringSet(
+    key: String,
+    defValue: MutableSet<String>? = null
+): MutableSet<String>? =
     requireContext().defaultSharedPreferences.getStringSet(key, defValue)
 
 fun Fragment.putPrefStringSet(key: String, value: MutableSet<String>) =
@@ -51,15 +57,23 @@ fun Fragment.removePref(key: String) =
 
 fun Fragment.getCompatColor(@ColorRes id: Int): Int = requireContext().getCompatColor(id)
 
-fun Fragment.getCompatDrawable(@DrawableRes id: Int): Drawable? = requireContext().getCompatDrawable(id)
+fun Fragment.getCompatDrawable(@DrawableRes id: Int): Drawable? =
+    requireContext().getCompatDrawable(id)
 
-fun Fragment.getCompatColorStateList(@ColorRes id: Int): ColorStateList? = requireContext().getCompatColorStateList(id)
+fun Fragment.getCompatColorStateList(@ColorRes id: Int): ColorStateList? =
+    requireContext().getCompatColorStateList(id)
 
 inline fun <reified T : Activity> Fragment.startActivity(vararg params: Pair<String, Any?>) =
     AnkoInternals.internalStartActivity(requireActivity(), T::class.java, params)
 
-inline fun <reified T : Activity> Fragment.startActivityForResult(requestCode: Int, vararg params: Pair<String, Any?>) =
+inline fun <reified T : Activity> Fragment.startActivityForResult(
-    startActivityForResult(AnkoInternals.createIntent(requireActivity(), T::class.java, params), requestCode)
+    requestCode: Int,
+    vararg params: Pair<String, Any?>
+) =
+    startActivityForResult(
+        AnkoInternals.createIntent(requireActivity(), T::class.java, params),
+        requestCode
+    )
 
 inline fun <reified T : Service> Fragment.startService(vararg params: Pair<String, Any?>) =
     AnkoInternals.internalStartService(requireActivity(), T::class.java, params)

app/src/main/java/io/legado/app/utils/JsoupExtensions.kt

@@ -10,41 +10,38 @@ import org.jsoup.select.NodeVisitor
 
 
 fun Element.textArray(): Array<String> {
-    val accum = StringUtil.borrowBuilder()
+    val sb = StringUtil.borrowBuilder()
     NodeTraversor.traverse(object : NodeVisitor {
         override fun head(node: Node, depth: Int) {
             if (node is TextNode) {
-                appendNormalisedText(accum, node)
+                appendNormalisedText(sb, node)
             } else if (node is Element) {
-                if (accum.isNotEmpty() &&
+                if (sb.isNotEmpty() &&
                     (node.isBlock || node.tag().name == "br") &&
-                    !lastCharIsWhitespace(accum)
+                    !lastCharIsWhitespace(sb)
-                ) accum.append("\n")
+                ) sb.append("\n")
             }
         }
 
         override fun tail(node: Node, depth: Int) {
             if (node is Element) {
-                if (node.isBlock && node.nextSibling() is TextNode && !lastCharIsWhitespace(
+                if (node.isBlock && node.nextSibling() is TextNode
-                        accum
+                    && !lastCharIsWhitespace(sb)
-                    )
+                ) {
-                ) accum.append("\n")
+                    sb.append("\n")
+                }
             }
         }
     }, this)
-    val text = StringUtil.releaseBuilder(accum).trim { it <= ' ' }
+    val text = StringUtil.releaseBuilder(sb).trim { it <= ' ' }
     return text.splitNotBlank("\n")
 }
 
-private fun appendNormalisedText(accum: StringBuilder, textNode: TextNode) {
+private fun appendNormalisedText(sb: StringBuilder, textNode: TextNode) {
     val text = textNode.wholeText
     if (preserveWhitespace(textNode.parentNode()) || textNode is CDataNode)
-        accum.append(text)
+        sb.append(text)
-    else StringUtil.appendNormalisedWhitespace(
+    else StringUtil.appendNormalisedWhitespace(sb, text, lastCharIsWhitespace(sb))
-        accum,
-        text,
-        lastCharIsWhitespace(accum)
-    )
 }
 
 private fun preserveWhitespace(node: Node?): Boolean {

app/src/main/java/io/legado/app/utils/LanguageUtils.kt

@@ -72,14 +72,6 @@ object LanguageUtils {
             @Suppress("DEPRECATION")
             locale = context.resources.configuration.locale
         }
-        /*
-        Log.d("h11128", "displayName " + locale.displayName)
-        Log.d("h11128", "displayCountry " + locale.displayCountry)
-        Log.d("h11128", "displayLanguage " + locale.displayLanguage)
-        Log.d("h11128", "Language " + locale.language)
-        Log.d("h11128", "Country " + locale.country)
-
-         */
         return locale
 
     }

app/src/main/java/io/legado/app/utils/NetworkUtils.kt

@@ -8,7 +8,7 @@ import java.net.URL
 import java.util.*
 import java.util.regex.Pattern
 
-@Suppress("unused")
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 object NetworkUtils {
     fun getUrl(response: Response<*>): String {
         val networkResponse = response.raw().networkResponse()

app/src/main/java/io/legado/app/utils/StringUtils.kt

@@ -12,7 +12,7 @@ import kotlin.math.abs
 import kotlin.math.log10
 import kotlin.math.pow
 
-@Suppress("unused")
+@Suppress("unused", "MemberVisibilityCanBePrivate")
 object StringUtils {
     private const val HOUR_OF_DAY = 24
     private const val DAY_OF_YESTERDAY = 2

app/src/main/java/io/legado/app/utils/ViewExtensions.kt

@@ -7,7 +7,6 @@ import android.graphics.Canvas
 import android.os.Build
 import android.view.View
 import android.view.View.*
-import android.view.ViewGroup
 import android.view.inputmethod.InputMethodManager
 import android.widget.RadioGroup
 import android.widget.SeekBar
@@ -80,13 +79,6 @@ fun View.screenshot(): Bitmap? {
     }.getOrNull()
 }
 
-fun View.setMargin(left: Int, top: Int, right: Int, bottom: Int) {
-    if (layoutParams is ViewGroup.MarginLayoutParams) {
-        (layoutParams as ViewGroup.MarginLayoutParams).setMargins(left, top, right, bottom)
-        requestLayout()
-    }
-}
-
 fun SeekBar.progressAdd(int: Int) {
     progress += int
 }

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

@@ -1,15 +1,15 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
-    android:layout_height="match_parent">
+    android:layout_height="match_parent"
+    android:orientation="vertical">
 
     <androidx.viewpager.widget.ViewPager
         android:id="@+id/view_pager_main"
         android:layout_width="match_parent"
         android:layout_height="0dp"
-        app:layout_constraintBottom_toTopOf="@+id/bottom_navigation_view"
+        android:layout_weight="1" />
-        app:layout_constraintTop_toTopOf="parent" />
 
     <com.google.android.material.bottomnavigation.BottomNavigationView
         android:id="@+id/bottom_navigation_view"
@@ -17,7 +17,6 @@
         android:layout_height="50dp"
         android:background="@color/background"
         app:labelVisibilityMode="unlabeled"
-        app:menu="@menu/main_bnv"
+        app:menu="@menu/main_bnv" />
-        app:layout_constraintBottom_toBottomOf="parent" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+</LinearLayout>

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

@@ -25,6 +25,7 @@
         android:gravity="center"
         android:layout_gravity="center"
         android:visibility="gone"
+        android:text="@string/bookshelf_empty"
         tools:text="TextView" />
 
 </FrameLayout>

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

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
@@ -11,14 +11,11 @@
         android:layout_height="wrap_content"
         app:attachToActivity="false"
         app:title="@string/bookshelf"
-        app:contentLayout="@layout/view_tab_layout_min"
+        app:contentLayout="@layout/view_tab_layout_min" />
-        app:layout_constraintTop_toTopOf="parent" />
 
     <androidx.viewpager.widget.ViewPager
         android:id="@+id/view_pager_bookshelf"
         android:layout_width="match_parent"
-        android:layout_height="0dp"
+        android:layout_height="match_parent" />
-        app:layout_constraintTop_toBottomOf="@+id/title_bar"
-        app:layout_constraintBottom_toBottomOf="parent" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+</LinearLayout>

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

@@ -30,6 +30,7 @@
         android:layout_margin="16dp"
         android:gravity="center"
         android:visibility="gone"
+        android:text="@string/explore_empty"
         app:layout_constraintTop_toBottomOf="@+id/title_bar"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintLeft_toLeftOf="parent"

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

@@ -31,6 +31,7 @@
         android:layout_margin="16dp"
         android:gravity="center"
         android:visibility="gone"
+        android:text="@string/rss_source_empty"
         app:layout_constraintTop_toBottomOf="@+id/title_bar"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintLeft_toLeftOf="parent"

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

@@ -1,13 +1,17 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="wrap_content"
+    android:orientation="vertical"
     android:paddingTop="8dp"
-    android:paddingRight="8dp"
     android:paddingLeft="8dp"
-    android:paddingBottom="4dp">
+    android:paddingRight="8dp">
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
 
         <io.legado.app.ui.widget.image.CoverImageView
             android:id="@+id/iv_cover"
@@ -26,8 +30,8 @@
             android:layout_height="wrap_content"
             android:layout_gravity="right"
             android:includeFontPadding="false"
-        app:layout_constraintTop_toTopOf="parent"
             app:layout_constraintRight_toRightOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
             tools:ignore="RtlHardcoded" />
 
         <io.legado.app.ui.widget.anima.RotateLoading
@@ -36,28 +40,28 @@
             android:layout_height="22dp"
             android:layout_gravity="right"
             android:visibility="invisible"
-        app:layout_constraintTop_toTopOf="parent"
+            app:hide_mode="invisible"
             app:layout_constraintRight_toRightOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
             app:loading_width="2dp"
-        app:hide_mode="invisible"
             tools:ignore="RtlHardcoded" />
 
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
     <TextView
         android:id="@+id/tv_name"
-        android:layout_width="0dp"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:paddingLeft="4dp"
+        android:layout_marginTop="6dp"
-        android:paddingRight="4dp"
+        android:ellipsize="end"
-        android:includeFontPadding="false"
         android:gravity="top|center_horizontal"
+        android:includeFontPadding="false"
         android:lines="2"
-        android:ellipsize="end"
         android:text="@string/book_name"
         android:textColor="@color/primaryText"
         android:textSize="12sp"
-        app:layout_constraintLeft_toLeftOf="@+id/iv_cover"
-        app:layout_constraintRight_toRightOf="@+id/iv_cover"
-        app:layout_constraintTop_toBottomOf="@+id/iv_cover"
         tools:ignore="RtlHardcoded,RtlSymmetry" />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
+</LinearLayout>
+
+

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

@@ -29,4 +29,10 @@
         android:padding="8dp"
         android:text="@string/delete" />
 
+    <io.legado.app.lib.theme.view.ATESwitch
+        android:id="@+id/sw_show"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="gone" />
+
 </LinearLayout>

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

@@ -25,6 +25,7 @@
         android:gravity="top|center_horizontal"
         android:lines="2"
         android:ellipsize="end"
+        android:textColor="@color/secondaryText"
         tools:text="RSS"
         app:layout_constraintLeft_toLeftOf="parent"
         app:layout_constraintRight_toRightOf="parent"

app/src/main/res/menu/arrange_book.xml

@@ -14,22 +14,6 @@
                 android:id="@+id/menu_group_manage"
                 android:title="@string/group_manage" />
 
-            <item
-                android:id="@+id/menu_no_group"
-                android:title="@string/no_group" />
-
-            <item
-                android:id="@+id/menu_all"
-                android:title="@string/all" />
-
-            <item
-                android:id="@+id/menu_local"
-                android:title="@string/local" />
-
-            <item
-                android:id="@+id/menu_audio"
-                android:title="@string/audio" />
-
         </menu>
 
     </item>

app/src/main/res/menu/book_cache.xml

@@ -16,17 +16,7 @@
         android:icon="@drawable/ic_groups"
         app:showAsAction="always">
 
-        <menu>
+        <menu />
-
-            <item
-                android:id="@+id/menu_no_group"
-                android:title="@string/no_group" />
-
-            <item
-                android:id="@+id/menu_all"
-                android:title="@string/all" />
-
-        </menu>
 
     </item>
 

app/src/main/res/menu/book_group_manage.xml

@@ -10,36 +10,4 @@
         app:showAsAction="always"
         tools:ignore="AlwaysShowAction" />
 
-    <group android:id="@+id/menu_groups">
-
-        <item
-            android:id="@+id/menu_group_all"
-            android:title="@string/all"
-            android:checkable="true"
-            android:checked="true"
-            app:showAsAction="never" />
-
-        <item
-            android:id="@+id/menu_group_local"
-            android:title="@string/local"
-            android:checkable="true"
-            android:checked="false"
-            app:showAsAction="never" />
-
-        <item
-            android:id="@+id/menu_group_audio"
-            android:title="@string/audio"
-            android:checkable="true"
-            android:checked="false"
-            app:showAsAction="never" />
-
-        <item
-            android:id="@+id/menu_group_none"
-            android:title="@string/no_group"
-            android:checkable="true"
-            android:checked="false"
-            app:showAsAction="never" />
-
-    </group>
-
 </menu>

app/src/main/res/values-zh-rTW/strings.xml

@@ -45,7 +45,7 @@
     <string name="recent_reading">最近閱讀</string>
     <string name="last_read">最後閱讀</string>
     <string name="update_log">更新日誌</string>
-    <string name="bookshelf_empty">書架還空著，先去搜索書籍或從發現裏添加吧！\n如果初次使用請先關註公眾號[開源閱讀]獲取書源！</string>
+    <string name="bookshelf_empty">書架還空著，先去搜尋書籍或從發現裡添加吧！\n如果初次使用請先關注公眾號[开源阅读]獲取書源！</string>
     <string name="action_search">搜尋</string>
     <string name="action_download">下載</string>
     <string name="layout_list">列表</string>
@@ -767,7 +767,7 @@
     <string name="share_selected_source">分享選中書源</string>
     <string name="sort_by_lastUpdateTime">時間排序</string>
     <string name="search_content">全文搜尋</string>
-    <string name="rss_source_empty">关注公众号[开源阅读]获取订阅源!</string>
+    <string name="rss_source_empty">關注公眾號[开源阅读]獲取訂閱源!</string>
-    <string name="explore_empty">当前没有发现源,关注公众号[开源阅读]添加带发现的书源!</string>
+    <string name="explore_empty">目前沒有發現源,關注公眾號[开源阅读]添加包含發現的書源!</string>
 
 </resources>