Hello. I have a simple 3 field signup form on my iOS app. I'd like to detect when the user is entering data into a specific field and then adjust the camera (or something) so that the each field is still visible to the user when the iOS keyboard pops up, like most iOS apps seem to do. What's the best way to accomplish this? Secondly, but not as important, is there any way to show the "next" button on the iOS keyboard and have it move to the next field. Thanks!