android room ORM具有初始值

您可以使用RoomDatabase实现这一点。最新版本的Room library中提供的回调。

RoomDatabase。回调

  RoomDatabase.Callback rdc = new RoomDatabase.Callback(){
        public void onCreate (SupportSQLiteDatabase db){
        // do something after database has been created
        }
        public void onOpen (SupportSQLiteDatabase db){
        //do something every time database is open
        }
    };

将回调添加到房间数据库生成器

 yourDatabase = Room.databaseBuilder(context,
                            YourDatabase.class, "your db").addCallback(rdc).build();

https://medium.com/@srinuraop/database-create-and-open-callbacks-in-room-7ca98c3286ab