How to delete object from Realm Database Android?

Question

I want remove all message object from realm those are equal to userid

RealmQuery<Message> rowQuery = realm.where(Message.class).equalTo(Message.USER_ID, userId); realm.beginTransaction(); //TODO : here I want to remove all messages where userId is equal to "9789273498708475" realm.commitTransaction(); 

Answer 1

In 0.88.3 and below you can do:

realm.executeTransaction(new Realm.Transaction() {     @Override     public void execute(Realm realm) {         RealmResults<Message> rows = realm.where(Message.class).equalTo(Message.USER_ID,userId).findAll();         rows.clear();     } }); 

From 0.89 (next release) this will be deleteAllFromRealm() instead.

realm.executeTransaction(new Realm.Transaction() {     @Override     public void execute(Realm realm) {         RealmResults<Message> result = realm.where(Message.class).equalTo(Message.USER_ID,userId).findAll();         result.deleteAllFromRealm();     } });