[android-developers] Re: custom dialog frame - how to get a pointy triangle edge

Successfully got a .9.png file created and applied it to my ListView -
looks very nice. Problem - the AlertDialog I want to use it for seems
to add a rectangle with white interior as a container or border around
my ListView. I'd like it to be transparent, and only show the
ListView. Do I have to do an "extends alertdialog" class to get rid of
that white border?

On Mar 30, 6:21 pm, Nick Longinow <nicklongi...@gmail.com> wrote:
> Then that's what I'll do.  Moving the triangle around randomly isn't
> very important. Thanks all.
>
> On Mar 29, 10:29 pm, Dianne Hackborn <hack...@android.com> wrote:
>
>
>
> > No, use a 9-patch.  That said, if you want to actually position the triangle
> > at different places in the border you probably will need to give up on just
> > setting a custom background drawable and have to draw your own background
> > with things positioned where you want.
>
> > On Tue, Mar 29, 2011 at 6:06 PM, Nick Longinow <nicklongi...@gmail.com>wrote:
>
> > > I'm looking for something more like a <shape> where the vertices are
> > > set to like a rectangle, but with one side that has a triangle shape
> > > coming out of it.  I believe I create this as a drawable in the XML
> > > layout, and then set the Dialog to use this drawable as the
> > > background.  True so far?
>
> > > On Mar 27, 11:01 pm, Hari Edo <hari....@gmail.com> wrote:
> > > > If you mean like the SMS app, you can do that with a .9.png
> > > > image file, also called a "Nine Patch."
>
> > > >http://developer.android.com/guide/topics/graphics/2d-graphics.html#n...
>
> > > > On Mar 27, 10:34 pm, Nick Longinow <nicklongi...@gmail.com> wrote:
>
> > > > > Like a balloon-style dialog, with one side of the dialog having a
> > > > > triangle coming out of it so that the dialog appears to point to some
> > > > > portion of the screen.  I've seen these in alot of apps - what is the
> > > > > basic idea here?  Is it use of shapes and themes?  Any simple examples
> > > > > out there?- Hide quoted text -
>
> > > > - Show quoted text -
>
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> > --
> > Dianne Hackborn
> > Android framework engineer
> > hack...@android.com
>
> > Note: please don't send private questions to me, as I don't have time to
> > provide private support, and so won't reply to such e-mails.  All such
> > questions should be posted on public forums, where I and others can see and
> > answer them.- Hide quoted text -
>
> > - Show quoted text -- Hide quoted text -
>
> - Show quoted text -

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