How to set the currency of card transaction in mobile SDK for Android

There are 2 mobile SDK's available on the Tpay.com website:

1. Handmade - available on Github - they provide developers with an embedded Tpay.com transactions panel, which can be displayed in mobile devices, available at https://tpay.com/dokumentacje
2. Generated automatically from our docs - they implement all available payment methods except receiving notifications. They are available at https://docs.tpay.com/

In the case of when implementing credit card API,  you should choose the second option and download the Android client from https://docs.tpay.com/ . After the page is loaded, choose on the right side:

Downloading the client with a ready SDK should start immediately. Currency can be set to use in SecuresaleFields.java , which implements the Currency.java model