Write an Android application

I need a simple Android vehicle trip logging APP very similar to the TripLog software. The app does not need the complexity of logging the trips using the cell phone GPS etc. The data will already be present in a sqlite database on the phone. Some points:- 1. Simple vehicle editing screen. The system must cater for multiple vehicles on one phone. 2. The app must read the trip table and allow editing - allocating of the trip to private or business use. It must also allow the merging of 2 trips (2 records combined into 1). 3. Have a facility to enter fuel purchases and store the odo reading with the purchase entry. Also store a picture of the fuel slip. 4. Generate a PDF report of the trips and a summary page with the different trip allocations. 5. Automatic upgrade of any database changes and software updates 6. Must be able to compile the source with Android Studio and be written with meaningful variables with easy to understand code. 7. Must be extremely easy to use. 8. I will supply the database structure, and the screen will be for the programmer to design.