UIDatePicker

.h file

@interface ViewController : UIViewController

{

    IBOutlet UIDatePicker *datePicker;

    IBOutlet UILabel *lblResult;

}

.m file

- (void)viewDidLoad

{

    [super viewDidLoad];

      datePicker.date = [NSDate date];    

    [datePicker addTarget:self

              action:@selector(datechange:)

    forControlEvents:UIControlEventValueChanged];

}

- (void)datechange:(id)sender{

NSDateFormatter *df = [[NSDateFormatter alloc] init];

//[df setDateFormat:@"yyyy-MM-dd"];

   df.dateStyle = NSDateFormatterMediumStyle;

lblResult.text = [NSString stringWithFormat:@"%@",

                      [df stringFromDate:datePicker.date]];

}