java.lang.IllegalArgumentException: Object not managed by Realm, so it cannot be removed

I’m trying to delete Object from realm, but first time, I try to delete it, the application crashes, but then I reopen the application and try to delete, it is deleted. (doing this is recycler view)

realm.executeTransaction(new Realm.Transaction() {
                    @Override
                    public void execute(Realm realm) {

                        NotesPOJO note = notes.get(key);
                        note.deleteFromRealm();   //this is the line which shows the error


                    }
                });

For second attempt for item of recycler view, its deleting but for the first attempt the application is crashing.

[Zhuinden]

java.lang.IllegalArgumentException: Object not managed by Realm, so it cannot be removed

That’s simple, it’s because notes is some kind of map, not a RealmResults or anything, and the NotesPOJO you’re storing inside it is not a managed RealmObject (was not obtained by querying Realm).

To delete an object from the Realm, the object you call deleteFromRealm() on has to be managed, aka it must be obtained from a RealmResults.

For second attempt for item of recycler view, its deleting

nah that just means you probably never stored it in the Realm.

[Zhuinden]

https://github.com/Zhuinden/rx-realm-recyclerview-experiment/blob/a5a1bcbecf24203ea2973d6a9223825aa7aa1aff/app/src/main/java/com/zhuinden/rxrealm/path/cat/CatAdapter.java#L18