2 keyboards at the same time

I have created a mobile application for an ipad, and every time I press an analog input , 2 keyboards appear at the same time. One of them it’s a small popup and the other one is located on the bottom of the screen.The last one, you can show/hide by using the Utility bar but I would like to hide it permanently to show only the popup.
Does anyone know how to hide it?
Thank you very much