How to toggle a UITextField secure text entry (hide password) in Swift?

Question

I currently have a UITextfield with an eye icon in it that when pressed is supposed to toggle the secure text entry on and off.

I know you can che

Answer 1

Use button with eye image
and make buttonHandler method
set Tag for button with value 1

-(IBAction) buttonHandlerSecureText:(UIButton *)sender{
      if(sender.tag ==1){
            [self.textField setSecureTextEntry:NO];
            sender.tag = 2;
      }
      else{
            [self.textField setSecureTextEntry:YES];
            sender.tag = 1;
      }
}