I have a textbox with a button inside. When the user presses the Action, a progress bas is displayed, the screen goes dark, and some magic happens.
My problem is that since the action doesn’t result in the textbox losing focus, the on-screen keyboard is not hidden, and keeps covering half the screen.
Just set focus to the main page:
this will focus a control that doesn’t use the keyboard and thus hide the keyboard. Unfortunately there is no API to the keyboard to hide it.