Hi Romain,
Thanks for taking the time to answer this yourself.
You're probably right : the fix was probably made on ListView rather
that on TransitionDrawable.
The reason I need to know where the fix was is that I have to maintain
backward compatibility with Android 1.5, thus I would be happy to find
a workaround for this little bug.
I looked at the diffs (since Android 2.1 source code was pushed on
public git repository today !) but I wasn't able to find the fix yet.
I'll keep looking for it.
PS : Désolé pour mon anglais, et au passage merci pour ce sympatique
framework. :)
On Feb 1, 7:37 pm, Romain Guy <romain...@android.com> wrote:
> Hi,
>
> Why exactly do you need to know what the fix was? I don't remember
> doing anything to fix TransitionDrawable so it's probably one of the
> numerous fixes that went into ListView itself that's responsible for
> the new correct behavior.
>
>
>
> On Mon, Feb 1, 2010 at 8:39 AM, Worgle <lewor...@gmail.com> wrote:
> > Hello,
>
> > It seams to me that a bug was fixed between android 2.0.1 and 2.1
> > about TransitionDrawable (or maybe ImageView).
>
> > When using TransitionDrawable in a ListView (with convert view
> > mechanism) in android 2.0.1 and below, I can't see the Transition if I
> > scroll rapidly to the end of the list, and then go back to the middle
> > (even through I'm calling startTransition). Note that my
> > TransitionDrawable is set as the image of an ImageView.
> > (Tested on emulators from 1.6 to 2.1, and on real devices : G2 with
> > 1.5, G2 with 1.6 and Nexuos One with 2.1)
>
> > But with android 2.1, the bug magically disappeared ! I'm quite happy
> > but I still want backward compatibility...
>
> > So is there anyone on the android team a bit less busy than the others
> > who could run a diff on TransitionDrawable and ImageView between 2.01
> > and 2.1 and tell us what's going on ? :)
>
> > Of course the change could have occured on LayerDrawable or other
> > parent's classes as well...
>
> > Thanks,
>
> > Fabien
>
> > PS : here's part of my code
>
> > Drawable drawableOld = this.getDrawable();
> > Drawable drawableNew = new BitmapDrawable
> > (bitmap);
> > Drawable[] layers = {drawableOld, drawableNew};
> > TransitionDrawable transitionDrawable = new
> > TransitionDrawable(layers);
> > transitionDrawable.setCrossFadeEnabled(true);
> > setImageDrawable(transitionDrawable);
> > transitionDrawable.startTransition
> > (TRANSITION_DURATION);
>
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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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