Can android PopupWindow show another PopupWindow?

Question

Can android PopupWindow show another PopupWindow? How many PopupWindow can be opened in the same time? Only one?

The first PopupWindow is displayed normally. But on

Answer 1

After playing with it i've found that

    window.showAtLocation(getWindow().getDecorView(), Gravity.CENTER, x, y);

works okay, but

    window.showAsDropDown(getWindow().getDecorView(), Gravity.CENTER, x, y);

raises exception! If you use showAtLocation(view) with any view different from getWindow().getDecorView() you'll still have an exception.