Realm with pre populated data into assets?

Question

Normally I use Realm as:

RealmConfiguration config = new RealmConfiguration.Builder(applicationContext).deleteRealmIfMigrationNeeded().build();

Answer 1

Realm has a special parameter in its RealmConfiguration.Builder called assetFile. You could use it like:

realmConfiguration = new RealmConfiguration.Builder()
                    .assetFile("dataBase/default.realm") // your app's packaged DB
                    ...
                    .build();

just set yer assets DB path and file name and you are good to go without any android-realm-asset-helper lib or copy-file-from-assets code. In this example my app packaged DB-file lies in "assets/dataBase/default.realm".
Note, version below 2 has a bit another way to call assetFile, you should pass context additionally:

realmConfiguration = new RealmConfiguration.Builder(context)
        .assetFile(context, "dataBase/default.realm")
        .build();