Thanks for the quick reply.  I was mistaken in my original post.  I am
indeed getting ACTION_UP events as soon as my finger leaves the screen
while I am dragging on the ADP1.  Therefore, that is good enough to
solve my problem.  Strange that I am not getting ACTION_CANCEL as you
said.  My preference is to receive ACTION_UP events (as I am currently
getting) when the finger leaves the screen, so great!

On Jan 3, 2:31 am, Romain Guy <romain...@android.com> wrote:
> You should receive an ACTION_CANCEL if that happens.
>
>
>
> On Sun, Jan 3, 2010 at 12:27 AM, scastria <scastria...@gmail.com> wrote:
> > I have a motion listener to detect finger down, finger drag, and
> > finger up.  I start my action at finger down and finish my action at
> > finger up.  When the action is finished, I store it in a stack for
> > allowing undo.  My problem is that if I don't get a finger up event, I
> > can't finish my action to add it to the stack for undo.
>
> > How can I detect that the user's finger has left the screen?
>
> > I tried using the emulator to see if getEdgeFlags() ever returned
> > anything useful, and the result was always 0.
>
> > Basically, if a finger leaves the screen, then nothing is touching the
> > screen anymore and I would like to detect that as a finger up event.
> > How can I do this?
>
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> --
> Romain Guy
> Android framework engineer
> romain...@android.com
>
> Note: please don't send private questions to me, as I don't have time
> to provide private support.  All such questions should be posted on
> public forums, where I and others can see and answer them

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