iPhone UIDatePicker 设置MaximumDate

发布于 2024-09-17 07:38:56 字数 292 浏览 15 评论 0原文

我正在尝试构建一个日期选择器，其中今天作为最小日期，2011 年 2 月 1 日作为最大日期。

我已按如下方式设置了最小日期

[picker setMinimumDate: [NSDate date]];

，效果很好，但最大日期似乎不正确。

[picker setMaximumDate: [NSDate dateWithNaturalLanguageString:@"11/02/01"]];

如何正确设置最大日期？

原文

I am trying to build a datepicker which has today as a minimum date and 1 Feb 2011 as Maximum date.

I have set the minimum date as followed

[picker setMinimumDate: [NSDate date]];

and this works just fine but the MaximumDate does not seem to be correct.

[picker setMaximumDate: [NSDate dateWithNaturalLanguageString:@"11/02/01"]];

How do I set the maximum date correctly?

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淡水深流 2024-09-24 07:38:56

找到了答案。不管怎样，谢谢你的帮助。

[picker setDatePickerMode:UIDatePickerModeDate];

NSDateFormatter* formatter1 = [[NSDateFormatter alloc] init];
[formatter1 setLenient:YES];
[formatter1 setDateStyle:NSDateFormatterShortStyle];
[formatter1 setTimeStyle:NSDateFormatterShortStyle];

NSString* dateString = @"February 1 2011 10:00am";
NSDate* maxDate = [formatter1 dateFromString:dateString];

[picker setMinimumDate: [NSDate date]];
[picker setMaximumDate: maxDate];

Found the answer. Thanks anyway for your help.

[picker setDatePickerMode:UIDatePickerModeDate];

NSDateFormatter* formatter1 = [[NSDateFormatter alloc] init];
[formatter1 setLenient:YES];
[formatter1 setDateStyle:NSDateFormatterShortStyle];
[formatter1 setTimeStyle:NSDateFormatterShortStyle];

NSString* dateString = @"February 1 2011 10:00am";
NSDate* maxDate = [formatter1 dateFromString:dateString];

[picker setMinimumDate: [NSDate date]];
[picker setMaximumDate: maxDate];

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够运 2024-09-24 07:38:56

 NSCalendar *calendar = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
        NSDate *currentDate = [NSDate date];
        NSDateComponents *comps = [[[NSDateComponents alloc] init] autorelease];
        [comps setYear:0];
        NSDate *maxDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
        [comps setYear:-5];
        NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];

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

听到显示日期当前日期到 minDate 以及五年（向后）到 maxDate
它只展示了五年......

 NSCalendar *calendar = [[[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar] autorelease];
        NSDate *currentDate = [NSDate date];
        NSDateComponents *comps = [[[NSDateComponents alloc] init] autorelease];
        [comps setYear:0];
        NSDate *maxDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];
        [comps setYear:-5];
        NSDate *minDate = [calendar dateByAddingComponents:comps toDate:currentDate options:0];

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

hear showing date current date to minDate and five year(back) to maxDate
it's show only five year.....

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