AFAIK, there is no standard widget for this UI feature.. I imagine you
could build one yourself rather easily, however.

Hide the view element by default. Listen for selections on the
checkboxes, when one is made increment a counter and
setVisibility(View.VISIBLE) on your popup. When a box is unchecked,
decrement your counter and check if it is zero, if it is zero
setVisibility(View.GONE) on your popup. For positioning your popup
above screen content (like your list), look into using a
RelativeLayout container.

Hope the helps.

Nick

On Mar 27, 3:58 pm, Eric <[email protected]> wrote:
> Hi,
>
> I notice there is popup menu on gmail application once you click on
> the left checkbox of each message item. If there is no message
> checked, this menu would disappear.  What is that menu? How to
> implement it?
>
> Thanks,
>
> -Eric

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