ios 在 Swift 中的弹出式 datePickerView 中添加完成按钮？

Add a Done button within a pop-up datePickerView in Swift?

提问by u2603230

I want to add a Done button within a popped up datePickerView in Swift.

我想在 Swift 中弹出的 datePickerView 中添加一个完成按钮。

Here is the code:

这是代码：

@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)
}

I can use this code to pop up a datePickerView successfully.

我可以使用此代码成功弹出一个 datePickerView。

But after I've selected the date, it does not have a "Done" button to dismiss it.

但是在我选择了日期之后，它没有一个“完成”按钮来关闭它。

So how can I add the Done button into it?

那么如何将“完成”按钮添加到其中？

回答by Rob

I made this extension to close the picker. Swift 2

我做了这个扩展来关闭选择器。斯威夫特 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

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
}

}

And you can use it simply in your viewController:

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)

}

回答by rakeshbs

You can use a generic UIViewfor the inputViewproperty of the UITextField. We can add the UIDatePickerand UIButtonto this UIView.

您可以使用一个通用UIView的inputView财产UITextField。我们可以将UIDatePicker和添加UIButton到 this 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.
}

回答by Vinod Joshi

if you are using a button instead of text field:

如果您使用的是按钮而不是文本字段：

/** * MARK - Advance booking action */

/** * 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

回答by iOS

In Swift 5

在斯威夫特 5

If you want only Donebutton on DatePicker use my code

如果你只想要DatePicker 上的Done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)
}