CODEWITHSUNDEEP
iosswiftiphoneuitextfieldswift5
Ninjamaster
Ninjamaster

Reputation: 23

Why UITextField added whitespaces at the end of inputed strings?

After spending time for debuging I recognized that UITextField adds whitespaces to my strings pasted from clip board.

func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
        var input: String
        let newString = string.trimmingCharacters(in: .whitespacesAndNewlines)   // newString = "123"
        if let oldString = textField.text {                                      // oldString = "456"
            input = oldString
            input.insert(contentsOf: newString, at: input.index(input.startIndex, offsetBy: range.location))  // rang.location = 2, input = "4 123 56" but it supposed to be "412356"
        } else {
            input = newString
        }
        return true  
}

I have two questions:
1- Why it happens only by pasting at second and more times?
2- How can I avoid adding these whitespaces to my pasted strings?

Upvotes: 1

Views: 50

Answers (1)

Rob C
Rob C

Reputation: 5073

You are probably observing the effects of the smartInsertDeleteType property. You can change that like so:

class ViewController: UIViewController {

    @IBOutlet weak var textField: UITextField!

    override func viewDidLoad() {
        super.viewDidLoad()
        textField.smartInsertDeleteType = .no
    }
}

Upvotes: 2

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