Question

我正在开发一个我已经用iOS-7发布的项目。但现在因为操作表出现问题所以我现在正在实现UIAlertController。以下是我用来显示带有UIPicker的UIAlertController的代码。

alertController = [UIAlertController alertControllerWithTitle:@"" message:@"" preferredStyle:UIAlertControllerStyleActionSheet];

        UIAlertAction *alertAction = [UIAlertAction actionWithTitle:@"" style:UIAlertActionStyleDefault handler:nil];
        [alertController addAction:alertAction];
        [alertController addAction:alertAction];
        [alertController addAction:alertAction];
        [alertController addAction:alertAction];
        [pickerToolbar setFrame:CGRectMake(0, 0, self.view.frame.size.width-20, 44)];
        [alertController.view addSubview:pickerToolbar];
        [alertController.view addSubview:picker];

        [alertController.view setBounds:CGRectMake(0, 0, self.view.frame.size.width, 485)];
        [self presentViewController:alertController animated:YES completion:nil];

但我无法在其中添加datepicker。它与普通选择器不同，应用程序挂起。有关在UIAlertController中添加UIDatePicker的任何示例代码，请提供建议。提前致谢

Answer 1

Apple始终不鼓励将UIDatePicker添加到操作表中。自iOS 7以来，Apple已经引入了内联日期选择器的使用（请参阅在日历应用程序中完成的操作）。

如果您设法使用UIAlertController破解解决方法，它可能会在未来的iOS版本中再次破解。

Answer 2

对于iOS9 + Swift代码。

将目标添加到日期按钮或其他视图。

     dateBtn.addTarget(self,action: #selector(YourViewController.dateSelect(_:)),forControlEvents: UIControlEvents.TouchDown) //my date button      


    func dateSelect(sender:UIButton)  {


    if (UI_USER_INTERFACE_IDIOM() == .Phone)
    {

        //init date picker
        self.datePicker = UIDatePicker(frame: CGRectMake(0, 0, self.view.frame.size.width,260))
        self.datePicker.datePickerMode = UIDatePickerMode.Date

        //add target
        self.datePicker.addTarget(self, action: #selector(YourViewController.dateSelected(_:)), forControlEvents: UIControlEvents.ValueChanged)

        //add to actionsheetview
        if(UIDevice.currentDevice().systemVersion >= "8.0")
        {

            let alertController = UIAlertController(title: "Date Selection", message:" " , preferredStyle: UIAlertControllerStyle.ActionSheet)

            alertController.view.addSubview(self.datePicker)//add subview

            let cancelAction = UIAlertAction(title: "Done", style: .Cancel) { (action) in

                self.dateSelected(self.datePicker)
                self.tableView.reloadData()

            }

            //add button to action sheet
            alertController.addAction(cancelAction)


            let height:NSLayoutConstraint = NSLayoutConstraint(item: alertController.view, attribute: NSLayoutAttribute.Height, relatedBy: NSLayoutRelation.Equal, toItem: nil, attribute: NSLayoutAttribute.NotAnAttribute, multiplier: 1, constant: 300)
            alertController.view.addConstraint(height);

            self.presentViewController(alertController, animated: true, completion: nil)

        }


    }

}


//selected date func
func dateSelected(datePicker:UIDatePicker)
{

    let dateFormatter = NSDateFormatter()
    dateFormatter.dateStyle = NSDateFormatterStyle.ShortStyle

    let currentDate = datePicker.date
    let day = currentDate.day()
    let month = currentDate.month()
    let year = currentDate.year()

    let date  = "\(day)/\(month)/\(year)"

    print(date)

}

Answer 3

这对我有用

UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"\n\n\n\n\n\n\n\n\n\n\n" message:nil preferredStyle:UIAlertControllerStyleActionSheet];
UIDatePicker *picker = [[UIDatePicker alloc] init];
[picker setDatePickerMode:UIDatePickerModeDate];
[alertController.view addSubview:picker];
[alertController addAction:({
    UIAlertAction *action = [UIAlertAction actionWithTitle:@"OK" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        NSLog(@"OK");
        NSLog(@"%@",picker.date);
    }];
    action;
})];
UIPopoverPresentationController *popoverController = alertController.popoverPresentationController;
popoverController.sourceView = sender;
popoverController.sourceRect = [sender bounds];
[self presentViewController:alertController  animated:YES completion:nil];

Answer 4

这是我在iOS 7和iOS 8上测试的代码

    - (id)initWithDatePicker:(NSString*)title parentView:(UIView*)parentView {
    self = [super init];
    if (self) {
        datePickerView = [[UIDatePicker alloc] init];
        datePickerView.datePickerMode = UIDatePickerModeDateAndTime;
        if (IS_IOS8_AND_UP) {
            alertViewController = [UIAlertController
                                   alertControllerWithTitle:EMPTY_STRING
                                   message:title
                                   preferredStyle:UIAlertControllerStyleActionSheet];
            UIView* aboveBlurLayer = alertViewController.view.subviews[0];
            [aboveBlurLayer addSubview:datePickerView];
            [aboveBlurLayer setWidth:SCREEN_WIDTH - 16];
            [datePickerView setWidth:SCREEN_WIDTH - 16];
            [alertViewController.view setWidth:SCREEN_WIDTH - 16];
            [alertViewController.view setBackgroundColor:[UIColor whiteColor]];

            UIAlertAction* alertAction =
            [UIAlertAction actionWithTitle:EMPTY_STRING
                                     style:UIAlertActionStyleDefault
                                   handler:nil];
            [alertViewController addAction:alertAction];
            [alertViewController addAction:alertAction];
            [alertViewController addAction:alertAction];
            [alertViewController addAction:alertAction];

            [datePickerView setBackgroundColor:[UIColor whiteColor]];
            [aboveBlurLayer addSubview:datePickerView];
        } else {
            actionSheet = [[UIActionSheet alloc] initWithTitle:title
                                                      delegate:self
                                             cancelButtonTitle:nil
                                        destructiveButtonTitle:nil
                                             otherButtonTitles:nil];

            [actionSheet addSubview:datePickerView];
        }

        [self addToolBar];
        isDatePicker = YES;
        parent = parentView;
    }
  return self;
}

在工具栏上我有两个按钮完成并取消完成我通过代表发送回选择日期的电话和取消我解雇。此代码适用于iOS 7和iOS 8

Answer 5

在Swift 2中执行此操作的简洁方法：

let vc = UIAlertController(title: "Pickup time", message: nil, preferredStyle: .Alert)
        vc.addTextFieldWithConfigurationHandler({ (textfield) -> Void in
            let datepicker = UIDatePicker()
            // add delegate ... here

            textfield.inputView = datepicker
        })
        vc.addAction(UIAlertAction(title: "OK", style: .Default, handler: nil))
        vc.addAction(UIAlertAction(title: "Cancel", style: .Cancel, handler: nil))
        presentViewController(vc, animated: true, completion: nil)

Answer 6

swift3中的@idris代码

//Function Start  
func dateSelect()  {

    //init date picker
    let datePicker = UIDatePicker(frame: CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: 260))
    datePicker.datePickerMode = UIDatePickerMode.date

    //add target
    datePicker.addTarget(self, action: #selector(dateSelected(datePicker:)), for: UIControlEvents.valueChanged)

    //add to actionsheetview
    let alertController = UIAlertController(title: "Date Selection", message:" " , preferredStyle: UIAlertControllerStyle.actionSheet)

    alertController.view.addSubview(datePicker)//add subview

    let cancelAction = UIAlertAction(title: "Done", style: .cancel) { (action) in
        self.dateSelected(datePicker: datePicker)
    }

    //add button to action sheet
    alertController.addAction(cancelAction)

    let height:NSLayoutConstraint = NSLayoutConstraint(item: alertController.view, attribute: .height, relatedBy: .equal, toItem: nil, attribute: .notAnAttribute, multiplier: 1, constant: 300)
    alertController.view.addConstraint(height);

    self.present(alertController, animated: true, completion: nil)

}


//selected date func
@objc func dateSelected(datePicker:UIDatePicker) {

    let dateFormatter = DateFormatter()
    dateFormatter.dateStyle = DateFormatter.Style.short

    let currentDate = datePicker.date

    print(currentDate)

}

Answer 7

可以通过一些技巧来完成。到目前为止，这是我使用很少的维护工具。

let alertController = UIAlertController(title: alertTitle, message: nil, preferredStyle: .actionSheet)

let picker = UIDatePicker()
picker.translatesAutoresizingMaskIntoConstraints = false
alertController.view.addSubview(picker)
alertController.view.heightAnchor.constraint(equalToConstant: 350).isActive = true
picker.leadingAnchor.constraint(equalTo: alertController.view.leadingAnchor).isActive = true
picker.trailingAnchor.constraint(equalTo: alertController.view.trailingAnchor).isActive = true
picker.topAnchor.constraint(equalTo: alertController.view.topAnchor, constant: 10).isActive = true
/// Add your actions here....

如何在iOS8中的UIAlertController中添加UIDatePicker？

7 个答案: