Charge meter Android app

A proof of concept Android phone app needs to be developed. The deadline is very short (3 days). The app will only be run on a particular Android phone and will initially have extremelly simple logic and interface. I do not expect a good developer to take more than a few hours to write this app. The objective is to obtain a working app (apk and source code) to show certain people. The phone is an HTC One X with Android version 4.2.2 The app will do the following: On starting, will display a banner that will occupy the full screen for 2 seconds with the title of the app. "Charge Meter" in yellow bold embossed letters on an titanium metal looking background in a thick black frame. The app has only one screen which displays the following, in the below order: The Rate the current "run" is based on, which is an input field that allows only an integer number to be entered. The keyboard should automatically be switched to Num lock mode when this input field gets focus. The Start time (hh:mm:ss) which shows a functioning digital clock (e.g. 14:35:30) of the current time. This time will be locked to the current time when the Start button is pressed. The Elapsed time, initally 00:00:00, which shows the number of hours, minutes and seconds that have elapsed since the Start button at the bottom of the screen was pressed. The End time which shows a functioning digital clock (e.g. 14:35:30) of the current time which initially should display no numbers. The Total charge which is the product of the rate the user has entered in the Rate field multiplied by the Elapsed time. (e.g Rate = 30, Start time = 1:30:30, Elapsed time = 2:00:00, End time = 3:30:30, Charge = 60) The Rate and Charge boxes should allow/display two decimal places and no more than 6 digits in total. Two buttons at the bottom of the app (on same horizontal line, next to each other) allow the user to Start/Pause the meter, Reset the *times* and return the app to its initial state but *without* clearing the Rate field. When the meter is not running the first button should display Charge (and the audio Play sign). When the meter is running the first button should display Wait (and the audio Pause sign) The second button will always display Clear (and the audio Eject sign). When the Clear button is pressed the app will ask the user to confirm the clearing with a pop-up dialog that allow the user to Confirm the action by prompting: Reset Meter? [OK] [Cancel] While the meter is runnning, the Total Charge display should display the calculated charge thus far in realtime. The background (body) of the app is glossy plastic looking royal blue. The Rate input field is an embossed frame with pale yellow background. The Start time label looks exactly like the screen of an LCD digital watch. (Light grey background and black digital numbers) The Elapsed time label looks exactly like the screen of an LCD digital watch. (Light grey background and black digital numbers) The End time label looks exactly like the screen of an LCD digital watch. (Light grey background and black digital numbers) The Total charge label looks exactly like the screen of an LCD digital watch. (Light grey background and black digital numbers) Upon pressing the phone's Settings or Menu button the only option shown will be to exit the app. As you can see the app is extremelly simple, however it must look extremelly well made. Since there is practically no business logic implementation involved, 90% of your time will be spent on the look and feel of the app. Develop a good looking app please! Questions for clarifications further specifications, welcome.