Trying to capitalize the first letter of each word in a text field Using Swift

Question

I'm trying to capitalize the first letter of each word I put into a text field. I would like to put this code in here:

func textFieldShouldReturn(textField: UITextField) -> Bool {
//Here
}

My issue is that I have no idea what to put. I've tried creating a string like one post told me to do, and I'm having trouble:

nameOfString.replaceRange(nameOfString.startIndex...nameOfString.startIndex, with: String(nameOfString[nameOfString.startIndex]).capitalizedString)

I am not sure what to put inside that function to capitalize the first letter of each word.

Why not set the text field's `autocapitalizationType` property to `Words`? Then as the user types, each word will automatically be capitalized. — rmaddy, Jan 01 '16 at 17:59
@rmaddy why don't you post your comment as as answer? `textField.autocapitalizationType = .Words` — Leo Dabus, Jan 01 '16 at 18:34
@LeoDabus Because my comment doesn't answer the question. It's just a quick comment to offer a possible alternate solution. I don't know if the OP actually has a different need. — rmaddy, Jan 01 '16 at 18:46
try adding a target to your text field for the control events editing changed which calls a method where you can just do something like textField.text = textField.text?.capitalizedString — Leo Dabus, Jan 01 '16 at 18:57

score 19 · Accepted Answer · answered Jan 01 '16 at 18:01

19

Simply set Textfield's Capitalization for words.

answered Jan 01 '16 at 18:01

technerd

14,144
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how to make `UIButton` label as Capitalize. – N J Oct 10 '17 at 13:04
4

Changing Capitalisation option not working for me. :-( – Mehul Solanki Oct 17 '17 at 07:43

score 8 · Answer 2 · answered Aug 03 '16 at 08:50

From the code side of this question, assuming it's connected with IBOutlet.

If the need is to change the text field behavior:
```
textField.autocapitalizationType = .Words
```
If the need is to change the input for the text field, i.e. the String itself:
```
let newText = textField.text?.capitalizedString
```

Not asked in the question but yet: to Capitalize just the first letter:

let text = textField.text
let newText = String(text.characters.first!).capitalizedString + String(text.characters.dropFirst())

score 3 · Answer 3 · answered Mar 14 '18 at 11:23

This is forced capitalization of the first letter:

firstNameTextField.delegate = self

extension YourViewController : UITextFieldDelegate {

    func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
        let empty = textField.text?.isEmpty ?? true
        if(empty) {
            textField.text = string.uppercased()
            return false
        }

        return true
    }

}

Trying to capitalize the first letter of each word in a text field Using Swift

3 Answers3