UIAlertView includes UITextField only display on top half screen
<p>After several hours test, in iOS 4.0 and above I found if I draw an UITextField on an UIAlertView, sdk always make the UIAlertView only display on top half screen.
This case is only available on iOS 4.0 and above.</p>

<p>I guess maybe Apple worry about the prompted keyboard will hide the 'Cancel' or 'Ok' button of UIAlertView if the height of UIAlertView is too high.
Is it possible to disable the above function and make the UIAlertView display at center of screen?
I hope add more controls on UIAlertView and I think I can control the keyboard return button very well.</p>

<p>Welcome any comment</p>

<p>Thanks</p>

<p>interdev</p>
