Hello, How are you?
I have gone through initial your requirement and it's understand.
I'v already developed many android programs for 3 years, sometimes i was used to develop App that have any functionality such as transfer files through the wi-fi, etc.
And i can not only build but also design.
If you employ me, i do my best to carry out the task.
How do you like me?
I hope to hear from you.
Thank you.