UITextField has trailing whitespace after secureTextEntry toggle

i've just encounter this case and finally solved this problem.

works on Latest iOS SDK, iOS 8.1

First of all, there is no trailing space at all.

The dot(shown in SecureEntry) character and normal character have different width and after you toggle isSecureEntry switch, the cursor didn't refresh it's position.

so i use this workaround to solved this problem.

- (void)toggle
{
    NSString *tmpString;
    [self.passwordTextField setSecureTextEntry:!self.passwordTextField.isSecureTextEntry];
    if (self.passwordTextField.isSecureTextEntry) {
       // do stuffs
    } else {
       // do other stuffs
    }
    // Workaround to refresh cursor
    tmpString = self.passwordTextField.text;
    self.passwordTextField.text = @" ";
    self.passwordTextField.text = tmpString;
}

Swift 3+

   // Workaround to refresh cursor

    let currentText: String = self.userPassword.text!
    self.userPassword.text = "";
    self.userPassword.text = currentText

hope it helps!

I have a clean solution not going dirty with text property of UITextField.

Wrap them in this style.

[self.passwordTextField resignFirstResponder]; // first resign its first responder.

// change `secureTextEntry` property's value if necessary.

if (self.passwordTextField.secureTextEntry) {
    self.passwordTextField.secureTextEntry = NO;
    self.passwordEcryptButton.selected = YES;
}else{
    self.passwordTextField.secureTextEntry = YES;
    self.passwordEcryptButton.selected = NO;
}

[self.passwordTextField becomeFirstResponder];  // finally gain its first responder again.

PRE-iOS-8.0 (dated solution)... In your button's action method (toggling between secureTextEntry YES and NO), simply set UITextField's text property to its current text value. Although this may seem redundant and a bit like a hack, this will redraw the cursor in the right position. Here's an example of what your button's action method should look like now...

-(void)toggleButtonPressed:(UIButton*)sender
{
    // Toggle between secure and not-so-secure entry
    self.toggleButton.selected = !self.toggleButton.selected;
    self.textfield.secureTextEntry = !self.toggleButton.selected;

    // * Redundant (but necessary) line *
    [self.textfield setText:self.textfield.text];
}

POST-iOS-8.0... As of iOS 8.0, it appears that UITextField's text setter no longer redraws the cursor when called with a string equal to its current string value. Now, we need to take this a step further and actually change the text value before resetting it again. Replace the above setText: line with something like these lines.

// * Extra redundant (but necessary) lines *
NSString *currentText = self.textfield.text;
[self.textfield setText:@"Arbitrary string..."]; // Change the value
[self.textfield setText:currentText]; // Reset the value