Diseño de App para Android

Hi! I´m looking to make a very simple app using MercadoPago´s SDK.
It needs to have:
Login (username, password)
Register (name, username, password)
A home screen with:
EditText for inputing a service
EditText for inputing an amount (in AR$, pesos argentinos).
Using the MercadoPago library it need to take the amount and process it with the SDK´s
paymentMethodActivity (to select credit card), CardActivity (to imput credit card info), finalVaultActivity(to input CVC, the cards 3 digit security code).

GoPay App.
Developers site: https://www.mercadopago.com.ar/developers/
Android SDK link: https://www.mercadopago.com.ar/developers/en/tools/sdk/client/android/
MercadoPago Library: https://github.com/mercadopago/sdk-android

Hi! I´m looking to make a very simple app using MercadoPago´s SDK.
App needs to have:
-    Login page (username, password)
-    Register page (name, username, password)
-    Home Page with: EditText for inputing a service, EditText for inputing an amount (in AR$, pesos argentinos).

Using the MercadoPago library it needs to take the editable amount and process it with:
-    SDK´s paymentMethodActivity (to select credit card),
-    SDK´s CardActivity (to imput credit card info),
-    SDK´s finalVaultActivity(to input CVC, the cards 3 digit security code and select installments (1-3-6-9-12 payments with credit card).
Design:
Very simple design, White and the same blues as the MercadoPago Library´s.
Logo:

Application Data (to associate to my mercadopago account):
App ID:5875682010486719
Secret Key:0yF7lvNEsnBmVDBK8gwndoztXC1y6BXk
Name:GoPay
Short Name:go
Description:Payment Processing