How to build a UI of two textfields in a 'panel' on iOS?

I want to build a UI with textfields.

I need two textfields appear in a "panel" and I have control of that "panel" to have it display or not display. Ho开发者_开发技巧w can I make that?

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You can add the two text fields to a view, then implement the current view controller to present a modal view controller on some event (perhaps a button click)