优化

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

@@ -287,10 +287,6 @@ data class Book(
         newBook.customTag = customTag
         newBook.canUpdate = canUpdate
         newBook.readConfig = readConfig
-        if (appDb.bookDao.has(bookUrl) == true) {
-            delete()
-            appDb.bookDao.insert(newBook)
-        }
         return newBook
     }
 

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

@@ -16,6 +16,7 @@ import io.legado.app.constant.BookType
 import io.legado.app.constant.EventBus
 import io.legado.app.constant.Status
 import io.legado.app.constant.Theme
+import io.legado.app.data.appDb
 import io.legado.app.data.entities.Book
 import io.legado.app.data.entities.BookChapter
 import io.legado.app.data.entities.BookSource
@@ -212,6 +213,7 @@ class AudioPlayActivity :
             launch {
                 withContext(IO) {
                     AudioPlay.book?.changeTo(book, toc)
+                    appDb.bookDao.insert(book)
                 }
                 startActivity<ReadBookActivity> {
                     putExtra("bookUrl", book.bookUrl)

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

@@ -78,7 +78,9 @@ class AudioPlayViewModel(application: Application) : BaseViewModel(application)
 
     fun changeTo(source: BookSource, book: Book, toc: List<BookChapter>) {
         execute {
-            AudioPlay.book = AudioPlay.book!!.changeTo(book, toc)
+            AudioPlay.book?.changeTo(book, toc)
+            appDb.bookDao.insert(book)
+            AudioPlay.book = book
             AudioPlay.bookSource = source
             appDb.bookChapterDao.insert(*toc.toTypedArray())
             AudioPlay.upDurChapter(book)

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

@@ -178,18 +178,19 @@ class BookInfoViewModel(application: Application) : BaseViewModel(application) {
         }
     }
 
-    fun changeTo(source: BookSource, newBook: Book, toc: List<BookChapter>) {
+    fun changeTo(source: BookSource, book: Book, toc: List<BookChapter>) {
         changeSourceCoroutine?.cancel()
         changeSourceCoroutine = execute {
             bookSource = source
-            bookData.value!!.changeTo(newBook, toc)
-            bookData.postValue(newBook)
-            chapterListData.postValue(toc)
+            bookData.value?.changeTo(book, toc)
             if (inBookshelf) {
+                appDb.bookDao.insert(book)
                 appDb.bookChapterDao.insert(*toc.toTypedArray())
             }
+            bookData.postValue(book)
+            chapterListData.postValue(toc)
         }.onFinally {
-            postEvent(EventBus.SOURCE_CHANGED, newBook.bookUrl)
+            postEvent(EventBus.SOURCE_CHANGED, book.bookUrl)
         }
     }
 

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

@@ -50,6 +50,7 @@ class BookshelfManageViewModel(application: Application) : BaseViewModel(applica
                     .getOrNull()?.let { newBook ->
                         val toc = WebBook.getChapterListAwait(this, source, newBook)
                         book.changeTo(newBook, toc)
+                        appDb.bookDao.insert(newBook)
                         appDb.bookChapterDao.insert(*toc.toTypedArray())
                     }
             }

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

@@ -724,6 +724,7 @@ class ReadBookActivity : BaseReadBookActivity(),
             ReadAloud.stop(this)
             launch {
                 ReadBook.book?.changeTo(book, toc)
+                appDb.bookDao.insert(book)
             }
             startActivity<AudioPlayActivity> {
                 putExtra("bookUrl", book.bookUrl)

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

@@ -195,7 +195,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
         changeSourceCoroutine?.cancel()
         changeSourceCoroutine = execute {
             ReadBook.upMsg(context.getString(R.string.loading))
-            ReadBook.book!!.changeTo(book, toc)
+            ReadBook.book?.changeTo(book, toc)
             val nextChapter = toc.getOrElse(book.durChapterIndex) {
                 toc.first()
             }
@@ -206,6 +206,7 @@ class ReadBookViewModel(application: Application) : BaseViewModel(application) {
                 bookChapter = toc[book.durChapterIndex],
                 nextChapterUrl = nextChapter.url
             )
+            appDb.bookDao.insert(book)
             appDb.bookChapterDao.insert(*toc.toTypedArray())
             ReadBook.resetData(book)
             ReadBook.upMsg(null)