Hi, thank you for the message. I came up with this approach as well.
Finally I was happy to see a decent way of configuring the icons of an
ExpandableListView. The trick lies in having a stateful Drawable for
the group indicator. When I find time I'll post a code excerpt as
well, because I
TreKing, Maka,
Thank you for your attention and messages during this discussion. I
posted a very simple example showing a decent way (at least I believe
that it's decent) of overriding the default icons of an
ExpandableListView. I pasted the location below. Hopefully it will be
useful for people
TreKing, thank you for your messages so far. I won't give up for some
more days and will try to make it work. If I find a way I'll share
with the group as well, because as it seems many other people
attempted doing what I try to do now and faced similar issues.
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Hi Ali,
You need to create your icons as NinePathDrawable with the corners as
stretchable areas so that only the transparent areas are stretched.
Look at expander_ic_maximized.9.png in the Android source code to see
how they did it.
Makas
On Mar 15, 2:26 pm, Ali Chousein ali.chous...@gmail.com
Hi Maka,
Thank you for your message. Stretching is not the main problem though.
As I wrote above, changing the icon based on the state of a group is
the main problem. Anyway, finally I could find some time to sit down
to see this problem again. I'll investigate it for some more time.
Hope to come
To have different icons showing based on the the state of the group,
such as expanded or collapse. You need to create an xml file in
res/drawable to indicate such behavior and 2 different icons for each
state. For example, create an XML called expandable_icon.xml an icon
called expanded.9.png and
Yes, I tried to use ExpandableListView.setIndicatorBounds but this
affects the stretching only on the x-axis. I couldn't find any
function to do stretching on the y-axis. Anyway, there is always the
dirty trick of designing your icon accordingly, but if you care about
clear design, choosing this
Actually ExpandableListView.setGroupIndicator doesn't do the job
either, because it changes the icon for all groups. If you want to
override the icons for minimized and maximized states, the maximized
group icon will be different than the rest of the groups. It's not
possible to implement this
Yeah, I actually haven't tried fiddling with the icons, I was just going off
of what I saw in the docs. I know someone else on here was having a similar
issue and it appears that the ExpandableListView was not designed to allow
major controls over the icons.
Sorry, don't know what else to tell
Thanks that'll help.
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Hi TreKing,
The ExpandableListView.setGroupIndicator does the job indeed, except
it stretches the new icon. Is there a way to disable this stretching?
I find it a bit strange that stretching is the default behavior
instead of displaying an icon in it's original size. Any feedback
would be very
On Sat, Mar 13, 2010 at 3:53 PM, Ali Chousein ali.chous...@gmail.comwrote:
Is there a way to disable this stretching?
Did you also set the bounds for the indicator?
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TreKing - Chicago transit
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