Simple app to receive bluetooth sensor data, display, relay to server

We've created / put together a test app which connects to a bluetooth sensor, transforms the data for display, and starts/stops the data stream. Now we need to rebuild the app into a 'proper' app with login/register screen user must get to first before main screen, and 4 sub view pages which either show web server data from script (3 views) or one that sets a global variable for use in the data display on home page (1 view). Here are the specifics that we need the winning bidder to do: - add in splash page with two buttons to either login or register - login screen will validate against a web script and return success or fail, if success on to main screen, fail display error message - register screen has simple form with 5 values, pass on to web script and receive success or fail - redo the current home screen display of data to be more visually appealing (will supply graphic assets), current displays in table - auto upload session data on user button event - add in buttons on main screen to following page views (graphic assets supplied): * add button and view for 'user settings' screen which interfaces with web script to pull user info/submits for update to web w/ error/success message (5 values) * add button for 'sensor calibration' screen in which the user can choose from a drop down of 5 presets, the value of which carries over to the home screen/global variable to affect the data transforms of the display data * add button and simple web view for 'data page' that passes user id in call to web script and displays web page in view * add button and simple web view for 'group page' that passes user id in call and displays web page page - lastly, 'clean' up our code for any potential data leaks, etc, so the parts we already made work properly What we have now: * apk, workfiles (from android studio), graphic assets of our existing app * main screen of app which connects, pauses and starts data stream from bluetooth sensor. this is already working with our sensor * main screen also has table display of data from sensor, along with math transforms used (doesn't display raw data, we already added in formulas to use to display and break up data string) * example buttons (do not link to views) * all graphic assets needed (may talk some on options for better display of data) * web application script URLs that this app talks to for login, register, posting data, data page and group page views I can answer any specific questions by bidders such as code, framework and objective questions that aren't covered above, other than specific content questions that require a NDA signature.