Android App for my company

The basic structure of the required UI is given below in the image. The app has to work on all latest versions of android phones.(Android 4.2) Functional specifications of each tab is attached below. 1. Customer Details 1.1 Add Customer -- Basic customer details like name,address, email ,phone no etc -- Save image of the customer application -- Read bar code on the application --store signature of the customer -- Email confirmation of Registration 1.2 Get Customer details --display details of the customer 2. Bill Details 2.1 add payment --make payment by getting the Bill details based on customer ID. Bill details will be present in DB --send email for confirmation of payment. 2.2 payment history -- get payment history from DB and display based on customer ID 2.3 Bill details -- get Bill details based on customer ID from DB and display 3. Complaints 3.1 add complaint -- add complaint based on customer id. 3.2 get complaint list -- display all complaints which are open. -- an option against each complaint to edit and close the task. I will share the details of the DB and structure once we reach to [login to view URL] source code has to be shared. the app has to be developed as soon as possible. Let me know the quote and time required.