Ios 在Swift中的弹出式datePickerView中添加“完成”按钮？

我想在Swift中弹出的datePickerView中添加一个“完成”按钮

代码如下：

@IBOutlet var datePicker: UITextField!

@IBAction func dateTextInputPressed(sender: UITextField) {

    var datePickerView = 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地弹出datePickerView

但是在我选择了日期之后，它没有一个“完成”按钮来关闭它

---

那么，如何将“完成”按钮添加到它中？

您可以对

UITextField

的

inputView

属性使用通用的

UIView

。我们可以将

ui日期选择器

和

ui按钮

添加到此

ui视图

@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.
}

---

如果使用按钮而不是文本字段：

/** *马克-预订行动 */

---

我做这个扩展是为了关闭选择器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
}

}

Swift 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
}

}

您可以在viewController中简单地使用它：

  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)

}

斯威夫特5

如果您只想在DatePicker上单击“完成”按钮，请使用我的代码

//Write toolbar code for done button
let toolBar = UIToolbar()
toolBar.barStyle = .default
toolBar.isTranslucent = true
let space = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let doneButton = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(onClickDoneButton))
toolBar.setItems([space, doneButton], animated: false)
toolBar.isUserInteractionEnabled = true
toolBar.sizeToFit()
dobTF.inputAccessoryView = toolBar //Change your TextField name here

@objc func onClickDoneButton() {
    self.view.endEditing(true)
}

---

很好的解决方案。关于swift 3代码的一个小更正：let toolBar=UIToolbar（）#selector@JUL2791在前面的代码myTextField.inputView=myPikerView之后，例如，在UITextField（myTextField）的内部编辑确实开始了功能我想在点击按钮时显示选择器，并在从选择器中选择后将其分配给按钮标题。因此inputAccessoryView对UIButton不起作用。还有其他解决方案吗？在Swift 5中，结合以上对Swift 5的回答

//Write toolbar code for done button
let toolBar = UIToolbar()
toolBar.barStyle = .default
toolBar.isTranslucent = true
let space = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
let doneButton = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(onClickDoneButton))
toolBar.setItems([space, doneButton], animated: false)
toolBar.isUserInteractionEnabled = true
toolBar.sizeToFit()
dobTF.inputAccessoryView = toolBar //Change your TextField name here

@objc func onClickDoneButton() {
    self.view.endEditing(true)
}

@IBOutlet weak var txtDate: UITextField!
override func viewDidLoad() {
    super.viewDidLoad()
    
    //Write toolbar code for done button
    let toolBar = UIToolbar()
    toolBar.barStyle = .default
    toolBar.isTranslucent = true
    let space = UIBarButtonItem(barButtonSystemItem: .flexibleSpace, target: nil, action: nil)
    let doneButton = UIBarButtonItem(title: "Done", style: .done, target: self, action: #selector(onClickDoneButton))
    toolBar.setItems([space, doneButton], animated: false)
    toolBar.isUserInteractionEnabled = true
    toolBar.sizeToFit()
    txtDate.inputAccessoryView = toolBar //Change your TextField name here
    
    let datePickerView = UIDatePicker()
    datePickerView.datePickerMode = UIDatePicker.Mode.date
    
    txtDate.inputView = datePickerView
    datePickerView.addTarget(self, action: #selector(handleDatePicker(sender:)), for: UIControl.Event.valueChanged)
    
}

@objc func onClickDoneButton() {
    self.view.endEditing(true)
}

@objc func handleDatePicker(sender: UIDatePicker) {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "yyyy-MM-dd"
    txtDate.text = dateFormatter.string(from: sender.date)
}