Default Date for UIDatePicker in iOS

Question

I am new in iOS development. I have this ViewController in my Storyboard (includes a UIDatePicker and a bar button):

I followed Data Cell to call my DatePicker. When user click on a button in the page PickerDate pops up with a done bar button on the navigation bar:

The problem is it shows just the current date as default. Nothing changes when I set it from Properties:

Do you know how can I fix it? (by setting up the properties or programmatically).

Answer 1

I did it programmatically in this way :

NSCalendar *calendar = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
NSDateComponents *components = [[[NSDateComponents alloc] init] autorelease];
[components setYear:1980];
[components setMonth:1];
[components setDay:1];
NSDate *defualtDate = [calendar dateFromComponents:components];
pickerView.date = defualtDate;

But still don't know why it doesn't work by setting up the properties. Any help?