优化

app/src/main/java/io/legado/app/api/controller/BookController.kt

@@ -73,11 +73,7 @@ object BookController {
                 appDb.bookChapterDao.delByBook(book.bookUrl)
                 appDb.bookChapterDao.insert(*toc.toTypedArray())
                 appDb.bookDao.update(book)
-                return if (toc.isEmpty()) {
-                    returnData.setErrorMsg(appCtx.getString(R.string.error_load_toc))
-                } else {
-                    returnData.setData(toc)
-                }
+                return returnData.setData(toc)
             } else {
                 val bookSource = appDb.bookSourceDao.getBookSource(book.origin)
                     ?: return returnData.setErrorMsg("未找到对应书源,请换源")
@@ -90,11 +86,7 @@ object BookController {
                 appDb.bookChapterDao.delByBook(book.bookUrl)
                 appDb.bookChapterDao.insert(*toc.toTypedArray())
                 appDb.bookDao.update(book)
-                return if (toc.isEmpty()) {
-                    returnData.setErrorMsg(appCtx.getString(R.string.error_load_toc))
-                } else {
-                    returnData.setData(toc)
-                }
+                return returnData.setData(toc)
             }
         } catch (e: Exception) {
             return returnData.setErrorMsg(e.localizedMessage ?: "refresh toc error")

app/src/main/java/io/legado/app/model/Debug.kt

@@ -251,14 +251,10 @@ object Debug {
         log(debugSource, "︾开始解析目录页")
         val chapterList = WebBook.getChapterList(scope, bookSource, book)
             .onSuccess {
-                if (it.isNotEmpty()) {
                 log(debugSource, "︽目录页解析完成")
                 log(debugSource, showTime = false)
                 val nextChapterUrl = it.getOrNull(1)?.url
                 contentDebug(scope, bookSource, book, it[0], nextChapterUrl)
-                } else {
-                    log(debugSource, "︽目录列表为空", state = -1)
-                }
             }
             .onError {
                 log(debugSource, it.msg, state = -1)

app/src/main/java/io/legado/app/model/localBook/LocalBook.kt

@@ -2,6 +2,7 @@ package io.legado.app.model.localBook
 
 import android.net.Uri
 import androidx.documentfile.provider.DocumentFile
+import io.legado.app.R
 import io.legado.app.constant.AppConst
 import io.legado.app.constant.AppPattern
 import io.legado.app.data.appDb
@@ -37,7 +38,7 @@ object LocalBook {
             }
         }
         if (chapters.isEmpty()) {
-            throw AppException("目录为空")
+            throw AppException(appCtx.getString(R.string.chapter_list_empty))
         }
         return chapters
     }

app/src/main/java/io/legado/app/model/webBook/BookChapterList.kt

@@ -99,7 +99,7 @@ object BookChapterList {
             }
         }
         if (chapterList.isEmpty()) {
-            throw AppException("目录为空")
+            throw AppException(appCtx.getString(R.string.chapter_list_empty))
         }
         //去重
         if (!reverse) {

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

@@ -66,16 +66,12 @@ class AudioPlayViewModel(application: Application) : BaseViewModel(application)
             AudioPlay.bookSource?.let {
                 WebBook.getChapterList(this, it, book)
                     .onSuccess(Dispatchers.IO) { cList ->
-                        if (cList.isNotEmpty()) {
                         if (changeDruChapterIndex == null) {
                             appDb.bookChapterDao.insert(*cList.toTypedArray())
                         } else {
                             changeDruChapterIndex(cList)
                         }
                         AudioPlay.upDurChapter(book)
-                        } else {
-                            context.toastOnUi(R.string.error_load_toc)
-                        }
                     }.onError {
                         context.toastOnUi(R.string.error_load_toc)
                     }

app/src/main/java/io/legado/app/ui/book/changesource/ChangeSourceViewModel.kt

@@ -192,11 +192,9 @@ class ChangeSourceViewModel(application: Application) : BaseViewModel(applicatio
     private fun loadBookToc(source: BookSource, book: Book) {
         WebBook.getChapterList(viewModelScope, source, book)
             .onSuccess(IO) { chapters ->
-                if (chapters.isNotEmpty()) {
                 book.latestChapterTitle = chapters.last().title
                 val searchBook: SearchBook = book.toSearchBook()
                 searchFinish(searchBook)
-                }
             }.onError {
                 it.printOnDebug()
             }

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

@@ -110,7 +110,6 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
                 bookSource?.let { bookSource ->
                     WebBook.getChapterList(this, bookSource, book)
                         .onSuccess(IO) {
-                            if (it.isNotEmpty()) {
                             if (inBookshelf) {
                                 appDb.bookDao.update(book)
                                 appDb.bookChapterDao.insert(*it.toTypedArray())
@@ -120,9 +119,6 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
                             } else {
                                 changeDruChapterIndex(it)
                             }
-                            } else {
-                                context.toastOnUi(R.string.chapter_list_empty)
-                            }
                         }.onError {
                             chapterListData.postValue(emptyList())
                             context.toastOnUi(R.string.error_get_chapter_list)