title: How to get do calculations including date from datePicker in Xcode/
body: <p>I need to build a mortgage calculator for iPhone as a task and I need to be able to read startdate from DatePicker in MainView, then an enddate for another DatePicker in FlipView and calculate the difference in the number of months between both dates. As I am new to Apple programming I do not know how to do it. Help, please :)</p>