Ios 如何防止日期选择器滚动到过去的日期？

我有一个日期选择器，看起来像这样：

[super viewDidLoad];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    NSDate *currentDate = [NSDate date];
    NSDateComponents *comps = [[NSDateComponents alloc] init];
    NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
    [self.DatePicker setMinimumDate:minDate];

我从DatePicker设置所选日期的通知，很明显我不需要过去的日期，我如何隐藏它们？我尝试了在另一个问题中找到的东西，但不起作用，如下所示：

[super viewDidLoad];
NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
    NSDate *currentDate = [NSDate date];
    NSDateComponents *comps = [[NSDateComponents alloc] init];
    NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
    [self.DatePicker setMinimumDate:minDate];

谢谢

试试这个

[picker setMinimumDate: [NSDate date]];

或者试试这个代码

 NSCalendar *calendar = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
 NSDate *currentDate = [NSDate date];
 NSDateComponents *comps = [[[NSDateComponents alloc] init] autorelease];
 [comps setYear:30];
 NSDate *maxDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
 [comps setYear:-30];
 NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];

 [datePicker setMaximumDate:maxDate];
 [datePicker setMinimumDate:minDate];

希望它能对你有用。

不客气。太好了：）请把我的答案投上去，这样它也会帮助别人。谢谢