优化

app/src/main/java/io/legado/app/ui/book/toc/TocActivity.kt

@@ -131,10 +131,13 @@ class TocActivity : VMBaseActivity<ActivityChapterListBinding, TocViewModel>(),
             waitDialog.show()
             viewModel.upBookTocRule(book) {
                 waitDialog.dismiss()
-            }
+                ReadBook.book?.let { readBook ->
-            ReadBook.book?.let { readBook ->
+                    if (readBook == book) {
-                if (readBook == book) {
+                        readBook.tocUrl = tocRegex
-                    readBook.tocUrl = tocRegex
+                        ReadBook.chapterSize = book.totalChapterNum
+                        ReadBook.upMsg(null)
+                        ReadBook.loadContent(resetPageOffset = true)
+                    }
                 }
             }
         }

app/src/main/java/io/legado/app/ui/book/toc/TocViewModel.kt

@@ -6,7 +6,6 @@ import androidx.lifecycle.MutableLiveData
 import io.legado.app.base.BaseViewModel
 import io.legado.app.data.appDb
 import io.legado.app.data.entities.Book
-import io.legado.app.model.ReadBook
 import io.legado.app.model.localBook.LocalBook
 
 class TocViewModel(application: Application) : BaseViewModel(application) {
@@ -34,9 +33,6 @@ class TocViewModel(application: Application) : BaseViewModel(application) {
                     appDb.bookChapterDao.delByBook(book.bookUrl)
                     appDb.bookChapterDao.insert(*it.toTypedArray())
                     appDb.bookDao.update(book)
-                    ReadBook.chapterSize = it.size
-                    ReadBook.upMsg(null)
-                    ReadBook.loadContent(resetPageOffset = true)
                 }
             }
         }.onFinally {