ios7 uidatepicker

####iOS7 Programming Cookbook 第一章学习笔记 UIDatePicker

#####Picking Date and Time with UIDatePicker

#####ViewController.m

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@interface  ()

@property (nonatomic, strong) UIDatePicker *myDatePicker;
@end

- (void)viewDidLoad{
[super viewDidLoad];

self.myDatePicker = [[UIDatePicker alloc] init];
//居中
self.myDatePicker.center = self.view.center;
//UIDatePickerModeCountDownTimer :日期选择器显示小时和分钟的值
self.myDatePicker.datePickerMode = UIDatePickerModeCountDownTimer;
//添加到view
[self.view addSubview:self.myDatePicker];
//启动默认时间间隔 0hours 2min
NSTimeInterval twoMinutes = 2 * 60;
//设置默认倒数时间
[self.myDatePicker setCountDownDuration:twoMinutes];
}

Reference