How to change keyboard background color in iOS?
For the dark background use: mytextfield.keyboardAppearance = UIKeyboardAppearanceAlert; Read to find more information about UITextInputTraits (use UIKeyboardAppearanceDark at iOS 7+).
iphone-keypad
How to get keyboard with Next, Previous and Done Button?
You’ll find the answer on this other post. I checked the iOS Library and the inputAccessoryView of a UITextField is exactly what you’re looking for ! Hope this helps !