This project is to produce a Simple tip calculator, User needs to enter the bill amount and tip percentage. Application will calculate and show the tip amount and total bill amunt.
Issues: I was not able to define the navigation controller and attach it as root view controller as shown in walk through video. I was able to make it focus after view appear, but failing to load the keyboard http://stackoverflow.com/questions/24727489/xcode-6-beta-3-keyboard-doesnt-show-up-when-selecting-textfield