Which payment system for Android to choose?

Question

Android

A small Android application is being developed, similar in concept to an online store. Requires the ability to purchase goods through this application.
If I understand correctly, the scheme should be as follows: the user pays in the application through some payment system, it gives him some kind of key confirming his payment, the client application sends this key to the server, he checks it in the same payment system and enters information about the completion of the purchase. Am I imagining the mechanism correctly?
The payment system is required to work with bank cards, all sorts of electronic wallets are not required, but will be a plus. yur face is

Answer 1

Good afternoon!
Not everything is so simple and easy .. each service provider has its own instructions for integration. And there are many services and aggregators on the market, but not all of them have such opportunities as you need.
For information, there are two different methods:
1. Normal HTML redirects are when you redirect to a service provider's payment page.
2. The second one forgot the name. but usually they write payment in one click - there is no redirect, but there is a card binding and payment confirmation
in the first case, for a mobile application you can find many aggregators ... BUT! not everyone has a page adapted to the mobile view and touchscreen capabilities, and you will also take several steps when integrating by sending the client to this page via a secure channel
in the second case, everything is very beautiful for mobile views, BUT! I know only one of the Russian operators who implemented this (an acquaintance used their technology for a charitable foundation to integrate with a mobile application according to the second scheme). are called Best2pay.ru

Answer 2

PayPal