How to update UILabel that is a subview of inputView?

I have UITextView where user types a text. When the keyboard is shown, I add inputView with UIlabel on it. I want this UIlabel to hold character length of the text. It seems very easy task, but unfortunatelly it does not update t开发者_C百科his word counter UILabel when user change text..

this is how I load the inputView

_textView.inputView = [self inputAccessoryView];

in inputAccessoryView I simply add UILabel as a subview. When keyboard is show, UILabel is also show with inputView. I track changes on

- (void)textViewDidChange:(UITextView *)textView

unfortunatelly the UILabel is never updated (redrawn). When I log in to console its value, the value is correct, so its updating, but the UIlabel is never redrawn and holds the default value.

Can anyone help me with this?

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did you

_textView.delegate = self;

?

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I know it was 5 years ago, but it might help others, who like me stumble upon your question.

I use a UIToolbar as my inputAccessoryView (in my case it has a label, a flexible separator and a button). On textFieldEditingChanged event I rebuild part of the toolbar like this

@IBAction func textFieldEditingChanged(_ sender: UITextField) {

    //get a reference to the toolbar
    let toolBar = sender.inputAccessoryView as! UIToolbar

    //create a new label and set size + other properties
    toolbarLabel = UILabel(frame: CGRect(x: 0, y: 0, width: 40, height: 22))
    toolbarLabel.text = mySpecificCalculatedString(sender.text!)
    toolbarLabel.font = defaultFont(17)
    toolbarLabel.adjustsFontSizeToFitWidth = true
    let width = toolbarLabel.textRect(forBounds: CGRect(x: 0, y: 0, width: maxWidthForLabel, height: 0), limitedToNumberOfLines: 1).size.width
    toolbarLabel.frame = CGRect(x: 0, y: 0, width: width, height: 22)
    toolbarLabel.textColor = .black
    toolbarLabel.tag = 666

    //rebuild the specific tolbar item
    let customView = UIBarButtonItem(customView: toolbarLabel)
    toolBar.items![0] = customView
}

Note: simply changing the text of the label did not work for me either, I had to reinitialize it.

Hope it helps.