Change UITextView text by using its tag number to identify the element due for change

Question

//UITextView Creation
let textarea  = UITextView (frame : CGRect (x: 40, y: 100 ,width:100 , height:100))
                                            textarea.delegate = self
                                            textarea.tag = self.numarr
                                            textarea.backgroundColor = UIColor(red: 0.9686, green: 0.9686, blue: 0.9686, alpha: 1.0)
                                            textarea.layer.cornerRadius = 20.0
                                            textarea.contentInset = UIEdgeInsetsMake(5, 5, 5, 5);
                                            textarea.layer.masksToBounds = true
                                            self.scrollviewxp.addSubview(textarea)   

//Later after, the button function
 @IBAction func loadbutton(_ sender: Any) {

if let hellatextview = self.scrollviewxp.viewWithTag(index) as? UITextView
                        {

                            hellatextview.text = "success"
                        }

                                         }

The above code is not flagged as an error on Xcode but doesn't change the UITextView (hellatextview) value upon execution. A textView with a tag number (index) exists but isn't being changed.

Any ideas why it isn't working? Ive had the same issue with UIButtons

Answer 1

You only need to make sure that the scrollviewxp is the very superview for the view trying to get with tag.

Otherwise, there is absolutely 0 reasons to fail.

Answer 2

SWIFT 4 Working solutions:

1.

if let hellaTextView = scrollviewxp.subviews.first(where: { $0.tag == index }) as? UITextView {
    hellaTextView.text = "success"
}

or

2.

   for subview in scrollviewxp.subviews
{
   if let hellatextview.text = subview as? UITextView 
     {
         if hellatextview.tag == index {
         hellatextview.text = "success"
                              }
    }
 }