在Swift中popup的datePickerView中添加完成button？

我想在Swift中popup的datePickerView中添加一个完成button。

这里是代码：

@IBOutlet var datePicker: UITextField! @IBAction func dateTextInputPressed(sender: UITextField) { var datePickerView : UIDatePicker = UIDatePicker() datePickerView.datePickerMode = UIDatePickerMode.Date sender.inputView = datePickerView datePickerView.addTarget(self, action: Selector("handleDatePicker:"), forControlEvents: UIControlEvents.ValueChanged) } func handleDatePicker(sender: UIDatePicker) { var dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "yyyy-MM-dd" datePicker.text = dateFormatter.stringFromDate(sender.date) } 

我可以使用此代码成功popup一个datePickerView。

但问题是我selectdate后，它没有一个“完成”button，所以我不能解雇它。

那么我怎样才能把完成button添加到它呢？

谢谢！

Answer 1

你可以使用通用的UIView作为UITextField的inputView属性。 我们可以添加UIDatePicker和UIButton到这个UIView 。

 @IBAction func dateTextInputPressed(sender: UITextField) { //Create the view let inputView = UIView(frame: CGRectMake(0, 0, self.view.frame.width, 240)) var datePickerView : UIDatePicker = UIDatePicker(frame: CGRectMake(0, 40, 0, 0)) datePickerView.datePickerMode = UIDatePickerMode.Date inputView.addSubview(datePickerView) // add date picker to UIView let doneButton = UIButton(frame: CGRectMake((self.view.frame.size.width/2) - (100/2), 0, 100, 50)) doneButton.setTitle("Done", forState: UIControlState.Normal) doneButton.setTitle("Done", forState: UIControlState.Highlighted) doneButton.setTitleColor(UIColor.blackColor(), forState: UIControlState.Normal) doneButton.setTitleColor(UIColor.grayColor(), forState: UIControlState.Highlighted) inputView.addSubview(doneButton) // add Button to UIView doneButton.addTarget(self, action: "doneButton:", forControlEvents: UIControlEvents.TouchUpInside) // set button click event sender.inputView = inputView datePickerView.addTarget(self, action: Selector("handleDatePicker:"), forControlEvents: UIControlEvents.ValueChanged) handleDatePicker(datePickerView) // Set the date on start. } func handleDatePicker(sender: UIDatePicker) { var dateFormatter = NSDateFormatter() dateFormatter.dateFormat = "yyyy-MM-dd" datePicker.text = dateFormatter.stringFromDate(sender.date) } func doneButton(sender:UIButton) { datePicker.resignFirstResponder() // To resign the inputView on clicking done. } 

Answer 2

我做了这个扩展来closuresselect器。 Swift 2

 extension UIToolbar { func ToolbarPiker(mySelect : Selector) -> UIToolbar { let toolBar = UIToolbar() toolBar.barStyle = UIBarStyle.Default toolBar.translucent = true toolBar.tintColor = UIColor.blackColor() toolBar.sizeToFit() let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Plain, target: self, action: mySelect) let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil) toolBar.setItems([ spaceButton, doneButton], animated: false) toolBar.userInteractionEnabled = true return toolBar } } 

斯威夫特3 – 4

 extension UIToolbar { func ToolbarPiker(mySelect : Selector) -> UIToolbar { let toolBar = UIToolbar() toolBar.barStyle = UIBarStyle.default toolBar.isTranslucent = true toolBar.tintColor = UIColor.black toolBar.sizeToFit() let doneButton = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.plain, target: self, action: mySelect) let spaceButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.flexibleSpace, target: nil, action: nil) toolBar.setItems([ spaceButton, doneButton], animated: false) toolBar.isUserInteractionEnabled = true return toolBar } } 

你可以简单地在你的viewController中使用它：

  override func viewDidLoad() { super.viewDidLoad() //SWIFT2 /* let toolBar = UIToolbar().ToolbarPiker(#selector(MyViewController.dismissPicker)) */ // Swift3 - 4 let toolBar = UIToolbar().ToolbarPiker(mySelect: #selector(MyViewController.dismissPicker)) myTextField.inputAccessoryView = toolBar } // Swift 2 - 3 func dismissPicker() { view.endEditing(true) } // Swift 4 @objc func dismissPicker() { view.endEditing(true) } 

Answer 3

如果您使用的是button而不是文本字段：

/ ** * MARK – 提前预订操作* /

 @IBAction func advanceBookingAction(sender: UIButton) { var datePicker : UIDatePicker = UIDatePicker() var datePickerContainer = UIView() datePickerContainer.frame = CGRectMake(0.0, self.view.frame.height/2, 320.0, 300.0) datePickerContainer.backgroundColor = UIColor.whiteColor() var pickerSize : CGSize = datePicker.sizeThatFits(CGSizeZero) datePicker.frame = CGRectMake(0.0, 20, pickerSize.width, 460) datePicker.setDate(NSDate(), animated: true) datePicker.maximumDate = NSDate() datePicker.datePickerMode = UIDatePickerMode.DateAndTime datePicker.addTarget(self, action: "dateChangedInDate:", forControlEvents: UIControlEvents.ValueChanged) datePickerContainer.addSubview(datePicker) var doneButton = UIButton() doneButton.setTitle("Done", forState: UIControlState.Normal) doneButton.setTitleColor(UIColor.blueColor(), forState: UIControlState.Normal) doneButton.addTarget(self, action: Selector("dismissPicker:"), forControlEvents: UIControlEvents.TouchUpInside) doneButton.frame = CGRectMake(250.0, 5.0, 70.0, 37.0) datePickerContainer.addSubview(doneButton) self.view.addSubview(datePickerContainer) }// end advanceBookingAction /** * MARK - observer to get the change in date */ func dateChangedInDate(sender:UIDatePicker){ var dateFormatter = NSDateFormatter() dateFormatter.dateStyle = NSDateFormatterStyle.LongStyle dateFormatter.timeStyle = NSDateFormatterStyle.NoStyle objMethodInc.printvj("date selected \(datePicker.date)") }// end dateChangedInDate /* * MARK - dismiss the date picker value */ func dismissPicker(sender: UIButton) { objMethodInc.printvj("dismiss date picker") datePickerContainer.removeFromSuperview() }// end dismissPicker