zymurgeek / TipOnDiscount

Tip On Discount is an Android tip calculator. It figures a tip based on the actual cost of a meal. The actual cost is the amount paid on the bill, excluding sales tax, but including any discounts that were applied. This insures your server gets tipped fairly. TOD will split a bill between multiple parties and let you round each share to, say, the nearest dollar. It will show you the actual tip percentage after rounding. TOD also supports bumping the tip up or down to the next rounded amount. There is no "calculate" button in TOD. All calculations are performed on the fly as you type. The code makes full use of JUnit test cases and Android JUnit test cases. Since it is a relatively small application, it should be useful to those who want to learn Android development and automated unit testing.