Realm database initialization

gistfile1.txt

public class SimpleRealmApp extends Application {
      
    private static SimpleRealmApp instance;
    
    @Override
    public void onCreate() {
        super.onCreate();
        instance = this;
        RealmConfiguration config = new RealmConfiguration.Builder(getApplicationContext()).setModules(new SimpleRealmModule()).build();
        Realm.setDefaultConfiguration(config);
    }
    
     public static SimpleRealmApp getInstance() {
        return instance;
    }
}