feat: 优化代码

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

@@ -147,6 +147,10 @@ class ArrangeBookActivity : VMBaseActivity<ArrangeBookViewModel>(R.layout.activi
                     okButton { viewModel.deleteBook(*adapter.selectedBooks.toTypedArray()) }
                     noButton { }
                 }.show().applyTint()
+            R.id.menu_update_enable ->
+                viewModel.upCanUpdate(adapter.selectedBooks.toTypedArray(), true)
+            R.id.menu_update_disable ->
+                viewModel.upCanUpdate(adapter.selectedBooks.toTypedArray(), true)
         }
         return false
     }

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

@@ -8,6 +8,15 @@ import io.legado.app.data.entities.Book
 
 class ArrangeBookViewModel(application: Application) : BaseViewModel(application) {
 
+    fun upCanUpdate(books: Array<Book>, canUpdate: Boolean) {
+        execute {
+            books.forEach {
+                it.canUpdate = canUpdate
+            }
+            App.db.bookDao().update(*books)
+        }
+    }
+
     fun updateBook(vararg book: Book) {
         execute {
             App.db.bookDao().update(*book)