ios 如何从目标c中的日期选择器获取日期？
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How to get date from datepicker in objective c?
提问by sharataka
In header file I have:
在头文件中，我有：
#import <UIKit/UIKit.h>
@interface ViewController : UIViewController
- (IBAction)displayDay:(id)sender;
@property (weak, nonatomic) IBOutlet UIDatePicker *datePicker;
@end
Implementation:
执行：
- (IBAction)displayDay:(id)sender {
NSDate *chosen = [UIDatePicker date];
}
Xcode is telling me I should have UIdatePicker, but when I make that change it says "No know class method for selector 'date'".
Xcode 告诉我应该有 UIdatePicker，但是当我进行更改时，它说“不知道选择器‘日期’的类方法”。
Any advice on how to deal with this?
有关如何处理此问题的任何建议？
回答by Midhun MP
The following code won't work:
以下代码将不起作用：
NSDate *chosen = [UIDatePicker date];
Because the dateis not a class method it's a property of UIDatePickerclass.
因为date它不是类方法，所以它是UIDatePicker类的属性。
date
The date displayed by the date picker.
@property(nonatomic, retain) NSDate *date;Discussion
The default is the date when the UIDatePicker object is created. The date is ignored in the mode UIDatePickerModeCountDownTimer; for that mode, the date picker starts at 0:00. Setting this property does not animate the date picker by spinning the wheels to the new date and time; to do that you must use the setDate:animated: method.
日期
日期选择器显示的日期。
@property(nonatomic, retain) NSDate *date;讨论
默认是创建 UIDatePicker 对象的日期。在 UIDatePickerModeCountDownTimer 模式下忽略日期；对于该模式，日期选择器从 0:00 开始。设置此属性不会通过将轮子旋转到新的日期和时间来为日期选择器设置动画；为此，您必须使用 setDate:animated: 方法。
You need to use it like:
你需要像这样使用它：
NSDate *chosen = [datePicker date];
回答by Anil Varghese
Do like this
这样做
- (IBAction)displayDay:(id)sender
{
NSDate *chosen = [self.datePicker date];
}
回答by Balu
- (IBAction)displayDay:(id)sender {
NSDate *chosen = [yourdatepicker date];
NSLog(@"%@",chosen);
}
try like this.
像这样尝试。
