一、案例介绍：点击屏幕中的UIButton,将在UIDatePicker选择的日期显示在UILabel中，如图01，02
图01
图02
二、案例步骤：
1、选择Simple View Aplication,取名cq.36.日期选择器，如图03
图03
2、Main.storyboard,如图04
3、CQ36ViewController.h
#import <UIKit/UIKit.h> @interface CQ36ViewController : UIViewController @property (weak,nonatomic) IBOutlet UIDatePicker *datePicker; @property (weak,nonatomic) IBOutlet UILabel *label; - (IBAction)onclick:(id)sender; @end
4、CQ36ViewController.m
- (IBAction)onclick:(id)sender { NSDate *theDate = self.datePicker.date; NSLog(@"the date picked is: %@",[theDate descriptionWithLocale:[NSLocale currentLocale]]); NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init]; [dateFormatter setDateFormat:@"YYYY-MM-dd HH:mm:ss"]; NSLog(@"the date format is: %@",[dateFormatter stringFromDate:theDate]); self.label.text = [dateFormatter stringFromDate:theDate]; }