I have a question about iOS UIKeyboard
.
I have a UITextField
and I would to have the keyboard
with only uppercase characters.
I use a storyboard
and I tried to set the Cpitalization
as "All characters
" to UITextField properties
.
But this not solve my problem...any suggestion?
To convert a String to Uppercase in Swift, use String. uppercased() function. Call uppercased() function on the String. The function returns a new string with the contents of the original string transformed to uppercase alphabets.
An object that displays an editable text area in your interface.
Set your textfield type autocapitalizationType
to UITextAutocapitalizationTypeAllCharacters
on the UITextField
self.yourTexField.autocapitalizationType = UITextAutocapitalizationTypeAllCharacters;
After call delegate
// delegate method
- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string { NSRange lowercaseCharRange = [string rangeOfCharacterFromSet:[NSCharacterSet lowercaseLetterCharacterSet]]; if (lowercaseCharRange.location != NSNotFound) { textField.text = [textField.text stringByReplacingCharactersInRange:range withString:[string uppercaseString]]; return NO; } return YES; }
Swift 5.4.2
self.yourTextField.autocapitalizationType = .allCharacters
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