Build a prototype application for Android

The task is to assemble a working prototype of the future application for business.
The purpose of the prototype is to confirm or refute the assumptions of the business + configure the server part and the application API.

Description:
A prototype app for truck drivers who carry cargo, it is important to get tracks about the location of the cargo and events on the flight using the app.

What do you need?
Make an SDK build that can be put on an Android phone. Designing with templates that are in Google play

The application should have the following functionality:
1 - Log in to the application with the existing login + pass, which will be generated on the server
2 - sending location coordinates using the existing protocol (soap or rest) - description on request
3 - sending events on the flight. (multiple buttons)

Possible implementation options can be discussed:
- Native appendix
- Assembly on sencha or jquery mobile frameworks + packaging (phone gap)

I will send more information to the TC upon request.
As an advantage - experience with GIS
PS in response indicates the implementation date