title: Stop UITextField Secure Text From Clearing Existing Text
body: <p>I have a UITextField that is a password field declared by using </p>
  
  <p><code>passwordField.secureTextEntry = YES;</code></p>
  
  <p>My issue is that when I type half my password, click on a different component, and come back to the passwordField and start typing again, iOS clears the existing text.</p>
  
  <p>Is there a way to prevent this from happening or turn it off?</p>
  
  <p>-Henry</p>