Changes

If you have spent an appreciable amount of time interacting with the iPhone’s built-in calendar application then the chances are very good that you have also used an instance of the UIDatePicker class. This class provides a user friendly and intuitive way for the user of an application to make date and time selections. The following figure illustrates the appearance of a typical DatePicker component implementation:

[[Image:ios_4_date_picker.jpg|The iOS 4 UIDatePicker object]]