Realm Delete Object on Android - Java Example

This example shows how to delete single object or all objects data in Realm Database on Android.

Below Java code uses Realm Java SDK / Library on Android.

— Delete Realm Object Query – Realm Database

try (Realm realm = Realm.getDefaultInstance()) {

    // Obtain the results of a query
    RealmResults results = realm.where(Model.class).findAll();

    // All changes to database must happen in transaction
    realm.executeTransaction(real -> {

        // Delete first or last object from results
        results.deleteFirstFromRealm();
        results.deleteLastFromRealm();

        // Delete single object at index of results
        Model model = results.get(5);
        model.deleteFromRealm();

        // Delete all objects from results
        results.deleteAllFromRealm();
    });

}

try (Realm realm = Realm.getDefaultInstance()) {

// Obtain the results of a query

RealmResults results = realm.where(Model.class).findAll();

// All changes to database must happen in transaction

realm.executeTransaction(real -> {

// Delete first or last object from results

results.deleteFirstFromRealm();

results.deleteLastFromRealm();

// Delete single object at index of results

Model model = results.get(5);

model.deleteFromRealm();

// Delete all objects from results

results.deleteAllFromRealm();

});

}

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