Question

我可以在UIPicker中通过[NSDate date]设置最长日期。但有没有办法只设置最大年份。还有一件事我希望日期和月份滚动，但年度应该最多只能到2015年。

Answer 1

有UIDatePicker的属性

@property(nonatomic, retain) NSDate *maximumDate

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Answer 2

在属性检查器中，您可以选择设置最大值。

Answer 3

我认为这会帮助你

NSCalendar *calendar = [[NSCalendar alloc] initWithCalendarIdentifier:NSGregorianCalendar];
NSDate *currentDate = [NSDate date];
NSDateComponents *comps = [[NSDateComponents alloc] init];
[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];

Answer 4

  //Get Current Date
    NSDate *currentTime = [NSDate date];
    [DatePicker setMinimumDate:currentTime];

尝试设置最大日期，它将完全设置为年度

    NSString *dateString = @"01-02-2010";
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    // this is imporant - we set our input date format to match our input string
    // if format doesn't match you'll get nil from your string, so be careful
    [dateFormatter setDateFormat:@"dd-MM-yyyy"];
    NSDate *dateFromString = [[NSDate alloc] init];

    dateFromString = [dateFormatter dateFromString:dateFromString];
    [datePicker setMaximumDate: dateFromString];

如何修复UIDatePicker中的最大年份而不是日期和月份？

4 个答案: