是否可以更改 UIDatePickerModeCountDownTimer 标签

Question

我创建了一个 UIDatePicker 并将其模式设置为 UIDatePickerModeCountDownTimer，我想知道是否可以更改其默认标签的文本（小时、分钟）

Answer 1

是的，你可以

These two labels (hours, min) basically subview of UIDatePicker. So, you can access these label by accessing subviews of UIDatePicker and then customise as you want.

在viewDidAppear方法中添加这三行

-(void)viewDidAppear:(BOOL)animated
{
     NSInteger totalSubView = [[datePicker.subviews[0] subviews] count];
     ((UILabel *)[[datePicker.subviews[0] subviews] objectAtIndex:(totalSubView-2)]).text = @"hr";
     ((UILabel *)[[datePicker.subviews[0] subviews] objectAtIndex:(totalSubView-1)]).text = @"m";
}

Note:- every time you change the value of UIDatePicker these label are reset. So, you need call these three line every time when value of UIDatePicker changed.

是否可以更改 UIDatePickerModeCountDownTimer 标签

Is it possible to change UIDatePickerModeCountDownTimer labels

objective-c

uidatepicker

是的，你可以