Android - PopupWindow above a specific view

You just needed to move the popupWindow by the height of its anchor using the yoff parameter in the showAsDropDown(View anchor, int xoff, int yoff) syntax.

popupWindow.showAsDropDown(anchor, 0, -anchor.getHeight()+popupView.getHeight);

Also, be aware that if the max height allowed to anchor does not allow for the transformation, the popup might not show up properly.

popupWindow.showAtLocation(...) actually shows the window absolutely positioned on the screen (not even the application). The anchor in that call is only used for its window token. The coordinates are offsets from the given gravity.

What you actually want to use is:

popupWindow.showAsDropDown(anchor, offsetX, offsetY, gravity);

This call is only available in API 19+, so in earlier versions you need to use:

popupWindow.showAsDropdown(anchor, offsetX, offsetY);

These calls show the popup window relative to the specified anchor view. Note that the default gravity (when calling without specified gravity) is Gravity.TOP|Gravity.START so if you are explicitly using Gravity.LEFT in various spots in your app you will have a bad time :)