I need an Android App

General information for the business: We provide back end services. Description of requirements/functionality: I need simple to use Android App. I will provide JSON data. 1) The user can log in and log out from the app. The log in state should be maintained. Suppose if the user is logged in, he should be logged in until he logs out manually. 2) In app I need 2 pages. The first page is known as Start Activity. Here user will select Distributor from the drop down. This drop down will come from the database via JSON. Then a feature to upload his photo. Then press Start Activity Button. Here I want to collect his exact location like latitude and longitude, date, and time. I need to save it in the database. The second page is known as End Activity. Here he will End Activity which he has started from page one. Here he will get drop down of Distributor of which he started the activity. Then he needs to provide how much sales he made of the product. There are some 9 to 10 products which will be dynamic and come from the database. Suppose he has sold 10 HRM. Then label will be HRM and in the text box, he need to enter 10 number. Then need the feature of uploading photo. Here also I want his exact location, date, and time. Use the code 'droidon' in the first line of your proposal to be considered. 3) The log out feature. Show some of your previously developed Android App. All code will be mine. You will work on this project as the app grows. Thank you for reading requirements. Regards, Rohit Extra notes: