Realm Auto Increment field example

Question

I need to add auto increment key field in Realm database in Android. How can I do this? Is this possible?

Thanks in advance.

Answer 1

Relam currently doesn't support auto_increment

see this issue on GitHub

you can take work around like this

realm.executeTransaction(new Realm.Transaction() {
    @Override
    public void execute(Realm realm) {
         // increment index
         Number num = realm.where(dbObj.class).max("id");
         int nextID;
         if(num == null) {
            nextID = 1;
         } else {
            nextID = num.intValue() + 1;
         }
         dbObj obj = realm.createObject(dbObj.class, nextID);
         // ...
    }
}