Format UITextField text without having cursor move to the end

Question

I am trying to apply NSAttributedString styles to a UITextField after processing a new text entry, keystroke by keystroke. The problem is t

Answer 1

Thanks @Stonz2 by the code in Objective-C. It works like a charm! I used it in my Swift project. The same code in Swift:

func textField(textField: UITextField, shouldChangeCharactersInRange range: NSRange, replacementString string: String) -> Bool {

    let positionOriginal = textField.beginningOfDocument
    let cursorLocation = textField.position(from: positionOriginal, offset: (range.location + NSString(string: string).length))

    /* MAKE YOUR CHANGES TO THE FIELD CONTENTS AS NEEDED HERE */

    if let cursorLoc = cursorLocation {
        textField.selectedTextRange = textField.textRange(from: cursorLoc, to: cursorLoc)
    }
    return false 
}