优化

app/src/main/java/io/legado/app/data/AppDatabase.kt

@@ -50,8 +50,8 @@ abstract class AppDatabase : RoomDatabase() {
 
         private const val DATABASE_NAME = "legado.db"
 
-        fun createDatabase(context: Context) =
+        fun createDatabase(context: Context) = Room
-            Room.databaseBuilder(context, AppDatabase::class.java, DATABASE_NAME)
+            .databaseBuilder(context, AppDatabase::class.java, DATABASE_NAME)
             .fallbackToDestructiveMigrationFrom(1, 2, 3, 4, 5, 6, 7, 8, 9)
             .addMigrations(*DatabaseMigrations.migrations)
             .allowMainThreadQueries()