Android: PopupWindow.showAtLocation(anchorView) -> how to get the whole screen as a anchorView?

I have PopupWindow, which I'd like to place in the center of the screen. However, I only have access to the KeyboardView (since I'm开发者_开发问答 implementing an IME) at the bottom of the screen and whenever I center my PopupWindow by using the KeyboardView and Gravity.CENTER it is of course only centered above the keyboard, but not in the whole screen.

Is there a way to get the whole screen as an anchor view?

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You cannot do this with a popup window. You should create your own window using a WindowManager instance.