UIDataPicker 时间选择器

自用时间选择器

 @interface ViewController ()
 {
     UILabel *cityLabel;
     UIDatePicker *datePicker;
 }
 //@property(nonatomic,strong)ZHPickView *pickview;
 @end

 @implementation ViewController

 - (void)viewDidLoad {
     [super viewDidLoad];
     // Do any additional setup after loading the view, typically from a nib.
     cityLabel=[[UILabel alloc]init];
     cityLabel.frame=CGRectMake(, , ,  );
     cityLabel.text=@"abcdefg";
     [self.view addSubview:cityLabel];

     UIButton *btn=[[UIButton alloc]init];
     btn.frame=CGRectMake(, , , );
     btn.backgroundColor=[UIColor yellowColor];
     [btn addTarget:self action:@selector(add) forControlEvents:UIControlEventTouchUpInside];
     [self.view addSubview:btn];

     //datePicker宽度320像素和高度216像素，系统都设置好了，只需设置一下他的远点坐标，
     datePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(, ,[UIScreen mainScreen].bounds.size.width, )];
     NSLocale *locale = [[NSLocale alloc]initWithLocaleIdentifier:@"zh_CN"];
     datePicker.locale = locale;
     //设置datePicker显示模式
     [datePicker setDatePickerMode:UIDatePickerModeDate];
     //DatePicker属于UIControl子类，可以触发事件，当滚动滑轮滑轮停下后就调用这个方法了
     [datePicker addTarget:self action:@selector(dateChanged:) forControlEvents:UIControlEventValueChanged];
     datePicker.hidden=YES;
     [self.view addSubview:datePicker];
 }

 -(void)add{
     datePicker.hidden=NO;
 }

 -(void)dateChanged:(id)sender
 {
     UIDatePicker *control = (UIDatePicker*)sender;
     //把当前控件设置的时间赋给date
     NSDate *date = control.date;
     // 将NSDate格式装换成NSString类型
     NSDateFormatter *dateFormatter = [[NSDateFormatter alloc]init];
     //设置日历显示格式
     [dateFormatter setDateFormat:@"yyyy/MM/dd"];
     //把日历时间传给字符串
     NSString *strDate = [dateFormatter stringFromDate:date];
     NSString *message = [[NSString alloc]initWithFormat:@"%@",strDate];
     cityLabel.text=message;

 }