password textfield on iPhone

I would like to use pas开发者_JS百科sword styled textfield in iPhone (when typing, only: "*"'s will apper...).

The problem: When i check the "secure" checkbox nothing happens - I still see the actual chars I'm typing....

What am I missing?

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UITextField shows the last typed character as the original character (for around 1 sec), and the other characters will be shown as **. This is the default behavior of iOS