iPhone：DatePicker dd / mm / yyyy [英] iPhone:DatePicker dd/mm/yyyy

问题描述

当用户单击textField时，我正在使用带有弹出窗口的DatePicker。但是，Picker显示月份首先，而不是首先显示日期，并不是英国的写日期的方式。
有没有办法将DatePicker的日期格式设置为英制的方式，如dd / mm / yyyy？
我正在使用Achtionsheet：

I am using a DatePicker with popups when a user click a textField. However, the Picker displays Month first, not date first and it isn't British way to write a date. Is there any way to set the date format in DatePicker to British way such as dd/mm/yyyy? I am using an Achtionsheet:

-(IBAction)acsheet:(id)sender
{

    actionSheet = [[UIActionSheet alloc] initWithTitle:nil 
                                              delegate:nil
                                     cancelButtonTitle:nil
                                destructiveButtonTitle:nil
                                     otherButtonTitles:nil];
    [actionSheet setActionSheetStyle:UIActionSheetStyleBlackTranslucent];

    //CGRect pickerFrame = CGRectMake(0, 45, 0, 0);
    pickerView1 = [[UIDatePicker alloc] init];
    pickerView1.datePickerMode = UIDatePickerModeDate;  

    [actionSheet addSubview:pickerView1];

    UISegmentedControl *closeButton = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObject:@"Close"]];
    closeButton.momentary = YES; 
    closeButton.frame = CGRectMake(260, 7.0f, 50.0f, 30.0f);
    closeButton.segmentedControlStyle = UISegmentedControlStyleBar;
    closeButton.tintColor = [UIColor blackColor];
    [closeButton addTarget:self action:@selector(dismissActionSheet:)                    
                      forControlEvents:UIControlEventValueChanged];
    [actionSheet addSubview:closeButton];
    [actionSheet showInView:[[UIApplication sharedApplication] keyWindow]];    
    [actionSheet setBounds:CGRectMake(0, 0, 320, 485)];

    [pickerView1 addTarget:self
                    action:@selector(updateLabel:)
          forControlEvents:UIControlEventValueChanged]; 

    UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
    UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self  action:@selector(dismissDatePicker:)] ;
    UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height, 320, 44)];
    toolBar.tag = 11;
    toolBar.barStyle = UIBarStyleBlackTranslucent;

    [toolBar setItems:[NSArray arrayWithObjects:spacer, doneButton, nil]];
    [self.view addSubview:toolBar];

}

推荐答案

code> UIDatePicker ，默认情况下，使用任何 [NSLocale currentLocale] 命令。

The UIDatePicker, by default, uses whatever [NSLocale currentLocale] dictates.

在iOS 5中已经不推荐使用 UIDatePicker 上的 locale 属性，但我相信您可以执行以下操作：

The locale property on UIDatePicker was deprecated in iOS 5, but I believe that you could do the following:

NSCalendar *cal = [NSCalendar currentCalendar];
cal.locale = [[NSLocale alloc] initWithLocaleIdentifier:@"en_GB"];
myDatePicker.calendar = cal;

这个应该工作。如果没有，请提交错误，我会解决它。 ：）

This should work. If it doesn't, please file a bug and I'll fix it. :)

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