编辑时在文本字段上隐藏键盘

Question

How to hide a keyboard when I am using DateTime picker on UITextField . When I click on UITextField that time first show a keyboard than it shows DateTime Picker on selected UITextField . Please give me appropriate solution for this.

Answer 1

1. Set the textField delegate to the object in which the textfield is initialise

   textfield.delegate = self //object which will handle textfield delegate methods.

2. Implement the textfield delegate methods

    (BOOL)textFieldShouldReturn:(UITextField *)textField{ if ([textField canResignFirstResponder]) { [textField resignFirstResponder]; } return YES; } (BOOL)textFieldShouldEndEditing:(UITextField *)textField{ // add your method here return YES; } (void)textFieldDidEndEditing:(UITextField *)textField{ } 

In Swift

func textFieldDidEndEditing(textField: UITextField!) {    //delegate method

}

func textFieldShouldEndEditing(textField: UITextField!) -> Bool {  //delegate method
    return true
}

func textFieldShouldReturn(textField: UITextField!) -> Bool {   //delegate method
  textField.resignFirstResponder()

    return true
}

Answer 2

In the below delegate method of UITextField you can return false so that keypad won't come, and you can add the code to show your datepicker.

func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {

            //Your code to show datepicker

            return false
}

Answer 3

You can use Keyboard notifications to find find out wether Keyboard complete shown or not. When you find out keyboard is shown then show DateTime picker on your current textField .

Here is a code for Keyboard Notifications

let center = NotificationCenter.default
center.addObserver(self,
                   selector: #selector(keyboardWillShow(_:)),
                   name: .UIKeyboardWillShow,
                   object: nil)

center.addObserver(self,
                   selector: #selector(keyboardWillHide(_:)),
                   name: .UIKeyboardWillHide,
                   object: nil)

Answer 4

I would suggest you use the inputView of the the textField to replace the keyboard with a date picker

dateTextField.inputView = datePicker

Like so

Or you can prevent the keyboard from showing up in the first place by using the

func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
    return false
}

You'll need to return false and add your custom code to show a datepicker before

Answer 5

Text field picker View use this

    let pickerView = UIDatePicker (frame: CGRect(x: 0, y: 240, width:    self.view.frame.size.width, height: 250))
    pickerView.backgroundColor = UIColor.white
    pickerView.minuteInterval = 30
    textField.inputView = pickerView

    pickerView.addTarget(self, action: #selector(yourvc. datePickerChanged(sender:)), for: UIControlEvents.valueChanged)
    let toolbar = UIToolbar (frame: CGRect(x: 0, y: 0, width: self.view.frame.size.width, height: 56))
    toolbar.barStyle = UIBarStyle.black
    toolbar.sizeToFit()

    var items = [UIBarButtonItem]()

    items.append(
        UIBarButtonItem(title: "Done".localized(lang:  self.language!), style: .plain, target: self, action: #selector(yourvc.pickerDoneClicked(sender:)))
    )
    toolbar.setItems(items, animated: true)
    toolbar.tintColor = UIColor.black
    textField.inputAccessoryView = toolbar


   func datePickerChanged(sender: UIDatePicker)
    {
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "dd MMM yyyy"
    print("date picker --->%@",sender.date)
    }

  func pickerDoneClicked(sender: UIBarButtonItem)
   {
    textfield.resignFirstResponder()
    self.view.endEditing(true)
   }

Answer 6

1.Set the textField delegate like below image

(A)

(B)

2.Add textField delegate methods

Swift

func textFieldShouldBeginEditing(_ textField: UITextField) -> Bool {
    // Implement your Date Time Picker initial Code here
  return false
}

Objective C

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField{
   // Implement your Date Time Picker initial Code here
    return NO;
}