How to resize NSTextField when content increase in NSTextField

Question

i have NSTextField but content that i have to show is not fixed , it will grow dynamically. is there any way in simple way through which we can change size dynamically. Thanks in Advance :)

Answer 1

The text field's delegate needs to update the size as the text changes.

The trick is you have to manually update the stringValue property, to avoid bugs:

override func controlTextDidChange(obj: NSNotification) {
  guard let field = obj.object as? NSTextField else {
    return
  }

  // re-apply the string value, this is necessary for the text field to correctly calculate it's width
  field.stringValue = field.stringValue

  // calculate the new dimensions
  let maxWidth: CGFloat = 500
  let maxHeight: CGFloat = 50
  let size = renameField.sizeThatFits(NSSize(width: maxWidth, height: maxHeight))

  // apply them
  field.frame = NSRect(x: field.frame.origin.x, y: field.frame.origin.y, width: size.width, height: size.height)
}