Scroll UITextView when keyboard appears in swift

Question

The problem I am facing now is that there is a UITextField in UIScrollView. When i clicks the UITextField, i am showing UIPickerView with UIToolBar. I need to move UITextField to up when PickerView presents.

Here is my design enter image description here

Here is my code

 func keyboardWillShow(notification: NSNotification)
{
    let userInfo = notification.userInfo
    if let info = userInfo
    {
        let animationDurationObject =
        info[UIKeyboardAnimationDurationUserInfoKey] as NSValue

        let keyboardEndRectObject =
        info[UIKeyboardFrameEndUserInfoKey] as NSValue

        var animationDuration = 0.0
        var keyboardEndRect = CGRectZero

        animationDurationObject.getValue(&animationDuration)
        keyboardEndRectObject.getValue(&keyboardEndRect)

        let window = UIApplication.sharedApplication().keyWindow

        keyboardEndRect = view.convertRect(keyboardEndRect, fromView: window)

        let intersectionOfKeyboardRectAndWindowRect =
        CGRectIntersection(view.frame, keyboardEndRect);

        UIView.animateWithDuration(animationDuration, animations: {[weak self] in

            self!.scrollView.contentInset = UIEdgeInsets(top: 0,
                left: 0,
                bottom: intersectionOfKeyboardRectAndWindowRect.size.height,
                right: 0)
            self?.scrollView.scrollRectToVisible(self!.activeTextField.frame, animated: true)
        })
    }
}

func keyboardWillHide(notification: NSNotification)
{
    let userInfo = notification.userInfo

    if let info = userInfo{
        let animationDurationObject =
        info[UIKeyboardAnimationDurationUserInfoKey]
            as NSValue

        var animationDuration = 0.0;

        animationDurationObject.getValue(&animationDuration)

        UIView.animateWithDuration(animationDuration, animations: {
            [weak self] in
            self?.scrollView.contentInset = UIEdgeInsetsZero
            self?.scrollView.scrollIndicatorInsets = UIEdgeInsetsZero
        })
    }
}

func textFieldShouldReturn(textField: UITextField) -> Bool
{
    textField.resignFirstResponder()
    return true
}

func textFieldShouldBeginEditing(textField: UITextField) -> Bool
{
    var returnVal = true
    self.activeTextField = textField
    if textField == self.pickerTextField
    {
        returnVal = false
        var yval:CGFloat = self.view.bounds.size.height - 206
        self.pickerContainerView.frame = CGRectMake(0, yval, self.view.bounds.size.width, self.pickerContainerView.frame.size.height)
        self.pickerContainerView.hidden = false
        self.view.addSubview(self.pickerContainerView)
    }
    return returnVal
}

func textFieldDidEndEditing(textField: UITextField) {
    self.activeTextField = nil
    textField.resignFirstResponder()
}

When i click other TextFields, those TextField goes up when keyboard presents. But what to do for PickerTextField

Any ideas for UItextView too

Thanks.

Steve Forbes · Accepted Answer · 2017-09-21 01:12:26Z

3

Swift 3 Version:

func textViewDidBeginEditing(_ textView: UITextView) {
    let scrollPoint : CGPoint = CGPoint.init(x:0, y:textView.frame.origin.y)
    self.scrollView.setContentOffset(scrollPoint, animated: true)
}

func textViewDidEndEditing(_ textView: UITextView) {
    self.scrollView.setContentOffset(CGPoint.zero, animated: true)
}

answered Sep 21, 2017 at 1:12

Steve Forbes

2301 silver badge6 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Nuibb · Accepted Answer · 2015-03-04 06:18:03Z

2

 You can try like below with textView delegate - 

 // MARK: UITextViewDelegate
    func textViewDidBeginEditing(textView: UITextView) {
        var scrollPoint : CGPoint = CGPointMake(0, self.textView.frame.origin.y)
        self.scrollView.setContentOffset(scrollPoint, animated: true)
    }

    func textViewDidEndEditing(textView: UITextView) {
        self.scrollView.setContentOffset(CGPointZero, animated: true)
    }

answered Mar 4, 2015 at 6:18

Nuibb

1,8604 gold badges24 silver badges40 bronze badges

2 Comments

user1831389 Over a year ago

I tried your code. Its not working for my condition. I am getting TextView y value as 93. Because i added TextView inside of UIView. U can see this in my design.

Nuibb Over a year ago

You should add your textView in scrollView and it will work then. You must inherit textViewDelegate in your view Controller as well as set the delegate of textView in storyboard.

Collectives™ on Stack Overflow

Scroll UITextView when keyboard appears in swift

2 Answers 2

Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related