If you want the virtual keyboard to popup when you display a text field in a view do the following:
In your viewDidLoad or if you call any method to do “things” before displaying then the variable that points to the text field should have the becomeFirstResponder message sent to it.
In the .h of your viewcontroller or class
In the .m of your viewcontroller or class
} // viewDidLoad
This should also set the focus to the UITextField.