优化

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

@@ -364,6 +364,10 @@ data class Book(
         }
     }
 
+    fun update() {
+        appDb.bookDao.update(this)
+    }
+
     fun delete() {
         if (ReadBook.book?.bookUrl == bookUrl) {
             ReadBook.book = null

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

@@ -171,7 +171,7 @@ object AudioPlay {
                         book.getUseReplaceRule()
                     )
                 }
-                book.save()
+                book.update()
             }
         }
     }

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

@@ -26,10 +26,12 @@ import io.legado.app.utils.stackTraceStr
 import io.legado.app.utils.toastOnUi
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers.IO
+import kotlinx.coroutines.Job
 import kotlinx.coroutines.MainScope
 import kotlinx.coroutines.SupervisorJob
 import kotlinx.coroutines.cancelChildren
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.ensureActive
 import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.receiveAsFlow
 import kotlinx.coroutines.launch
@@ -64,7 +66,7 @@ object ReadBook : CoroutineScope by MainScope() {
     /* web端阅读进度记录 */
     var webBookProgress: BookProgress? = null
 
-    var preDownloadTask: Coroutine<*>? = null
+    var preDownloadTask: Job? = null
     val downloadedChapters = hashSetOf<Int>()
     val downloadFailChapters = hashMapOf<Int, Int>()
     var contentProcessor: ContentProcessor? = null
@@ -169,9 +171,10 @@ object ReadBook : CoroutineScope by MainScope() {
 
     fun uploadProgress() {
         book?.let {
-            Coroutine.async {
+            launch(IO) {
                 AppWebDav.uploadBookProgress(it)
-                it.save()
+                ensureActive()
+                it.update()
             }
         }
     }
@@ -651,7 +654,7 @@ object ReadBook : CoroutineScope by MainScope() {
                 return@execute
             }
             preDownloadTask?.cancel()
-            preDownloadTask = Coroutine.async(executeContext = IO) {
+            preDownloadTask = launch(IO) {
                 //预下载
                 launch {
                     val maxChapterIndex =

app/src/main/java/io/legado/app/service/CacheBookService.kt

@@ -119,7 +119,7 @@ class CacheBookService : BaseService() {
                     WebBook.getChapterListAwait(cacheBook.bookSource, book).onFailure {
                         if (book.totalChapterNum > 0) {
                             book.totalChapterNum = 0
-                            book.save()
+                            book.update()
                         }
                         val msg = "《$name》目录为空且加载目录失败\n${it.localizedMessage}"
                         AppLog.put(msg, it, true)
@@ -127,7 +127,7 @@ class CacheBookService : BaseService() {
                     }.getOrNull()?.let { toc ->
                         appDb.bookChapterDao.insert(*toc.toTypedArray())
                     }
-                    book.save()
+                    book.update()
                 }
             }
             val end2 = if (end < 0) {

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

@@ -122,6 +122,7 @@ import io.legado.app.utils.visible
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
+import kotlinx.coroutines.ensureActive
 import kotlinx.coroutines.launch
 import kotlinx.coroutines.withContext
 
@@ -1439,7 +1440,8 @@ class ReadBookActivity : BaseReadBookActivity(),
             delay(300000)
             ReadBook.book?.let {
                 AppWebDav.uploadBookProgress(it)
-                it.save()
+                ensureActive()
+                it.update()
                 Backup.autoBack(this@ReadBookActivity)
             }
         }