This simple app turns your Android phone into a Draggable Tree View Demo App.
To use this app the user just clicks the 'High Score' demo app icon and they are taken right into the app. This app allows a person to add numbers to a score using the '+1' button. Then when done click the 'END' button and get taken to the Last Score / High Score screen and see how their current score compares with the rest entered previously. The last three Best scores are saved and the rest disguarded.
Production App screen caps taken from App running on Motorola Moto X Developer Edition running Android 5.1 Lollipop (API level 22) with Ad's added.