Question 68030 in IOS Swift Question posted in
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How to adjust the height of the textview depends on the content in correct way? – Ios swift

I have tried 2 more methods. But those are not giving me the correct solution.
If i tried this one

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

i can only type a one letter per a line.

If i tried this one

 func textViewDidChange(_ textView: UITextView) {
self.comments.translatesAutoresizingMaskIntoConstraints = true
self.comments.isScrollEnabled = false
let fixedWidth = passedOut.frame.size.width
let newSize = comments.sizeThatFits(CGSize(width: fixedWidth, height: CGFloat.greatestFiniteMagnitude))
comments.frame.size = CGSize(width: max(newSize.width, fixedWidth), height: newSize.height)
    }

Its working.
But at the viewDidLoad stage, the width of textview is certain less than which i constraints to the textview. But i gave the leading, trailing , height as same as passedOut textfield to that textview.

If i start typing in textview,This image shown at viewDidLoad when i m using second method the width of textview will become exact size which i want.

So pls suggest me what mistake i made?

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2

Answers


  1. 0

    1. Assign a height constraint to the text view

    2. Use the following method to change the height:

       func textViewDidChange(_ textView: UITextView) {
    let size = textView.bounds.size
    let newSize = textView.sizeThatFits(
     CGSize(width: size.width, height: CGFloat.greatestFiniteMagnitude)
    )

    if size.height != newSize.height {
        self.userMessageTextViewHeightConstraint.constant = newSize.height
        textView.layoutIfNeeded()
    }
 }
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  2. 0

    You can achieve this behavior by doing 2 things in textview

    1. Disable scrolling in textview
    2. Assign the following constraints to textview

    a) leading

    b) trailing

    c) top

    d) height >= 30 ,assuming 30 is the minimum height of your textview.

    Now when your text will grow textview will grow with it.

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