how to make UITextView height dynamic according to text length?

Question

As you can see in this image

the UITextView changes it\'s height according to the text length, I want to make it adjust it\'s height according to the te

Answer 1

SWIFT 4

Change the size when typing

UITextViewDelegate

func textViewDidChange(_ textView: UITextView) {
        yourTextView.translatesAutoresizingMaskIntoConstraints = true
        yourTextView.sizeToFit()
        yourTextView.isScrollEnabled = false

        let calHeight = yourTextView.frame.size.height
        yourTextView.frame = CGRect(x: 16, y: 193, width: self.view.frame.size.width - 32, height: calHeight)
    }

Change the size when load

func textViewNotasChange(arg : UITextView) {
        arg.translatesAutoresizingMaskIntoConstraints = true
        arg.sizeToFit()
        arg.isScrollEnabled = false

        let calHeight = arg.frame.size.height
        arg.frame = CGRect(x: 16, y: 40, width: self.view.frame.size.width - 32, height: calHeight)
    }

Call the function of the second option like this:

textViewNotasChange(arg: yourTextView)

Answer 2

this Works for me, all other solutions didn't.

func adjustUITextViewHeight(arg : UITextView)
{
    arg.translatesAutoresizingMaskIntoConstraints = true
    arg.sizeToFit()
    arg.scrollEnabled = false
}

In Swift 4 the syntax of arg.scrollEnabled = false has changed to arg.isScrollEnabled = false.

Answer 3

This answer may be late but I hope it helps someone.

For me, these 2 lines of code worked:

textView.isScrollEnabled = false
textView.sizeToFit()

But don't set height constraint for your Textview

Answer 4

Swift 5, Use extension:

extension UITextView {
    func adjustUITextViewHeight() {
        self.translatesAutoresizingMaskIntoConstraints = true
        self.sizeToFit()
        self.isScrollEnabled = false
    }
}

Usecase:

textView.adjustUITextViewHeight()

And don't care about the height of texeView in the storyboard (just use a constant at first)

Answer 5

its working

func textViewDidChange(_ textView: UITextView) {
    let fixedWidth = textviewconclusion.frame.size.width
    textviewconclusion.sizeThatFits(CGSize(width: fixedWidth, height: CGFloat.greatestFiniteMagnitude))
    let newSize = textviewconclusion.sizeThatFits(CGSize(width: fixedWidth, height: CGFloat.greatestFiniteMagnitude))
    var newFrame = textviewconclusion.frame
    newFrame.size = CGSize(width: max(newSize.width, fixedWidth), height: newSize.height)
    textviewconclusion.frame = newFrame
}

Answer 6

Swift 4

Add It To Your Class

UITextViewDelegate

func textViewDidChange(_ textView: UITextView) {
      let fixedWidth = textView.frame.size.width
      textView.sizeThatFits(CGSize(width: fixedWidth, height: CGFloat.greatestFiniteMagnitude))
      let newSize = textView.sizeThatFits(CGSize(width: fixedWidth, height: CGFloat.greatestFiniteMagnitude))
      var newFrame = textView.frame
      newFrame.size = CGSize(width: max(newSize.width, fixedWidth), height: newSize.height)
      textView.frame = newFrame
}