Hey Dianne, Thanks for your reply! I need this functionality and I've
built something similar into the internals. However, something tells
me that you guys did a much better job. :) I can see that most of
your work is still there, but I can't seem to follow it completely.
Can you tell me where to turn it back on and/or move this thread to
the internals discussion?
On Jan 21, 1:46 pm, Dianne Hackborn <hack...@android.com> wrote:
> This is not currently supported. We weren't using it anywhere in the UI on
> the G1, so we turned it off to avoid wasting time/space.
>
>
>
> On Wed, Jan 21, 2009 at 6:46 AM, drasticp <drast...@gmail.com> wrote:
>
> > I'd like to get some thumbnail images of the running applications. The
> > combination of RunningTaskInfo.thumbnail and
> > Activity.onCreateThumbnail seems like just the thing but I don't see
> > it working. I've overridden onCreateThumbnail in my main Activity.
> > According to the documentation, this method is called by the framework
> > when the activity is paused. I've set a breakpoint in the method and
> > it never seems to be hit. The base implementation of onCreateThumbnail
> > would work just fine if it would fire.
>
> > @Override
> > public boolean onCreateThumbnail(Bitmap outBitmap, Canvas canvas)
> > {
> > return super.onCreateThumbnail(outBitmap, canvas);
> > }
>
> > Also, I've written some simple code to getRunningTasks from the
> > ActivityManager. The RunningTaskInfo.thumbnail property is always
> > null. Is there something I need to set within an application so that
> > it will generate it's thumbnail before onPause? Is something needed in
> > the manifest. The documentation on this feature is sparse.
>
> > Here's some [simplified] code I use in an extension of BaseAdapter to
> > fetch the running tasks:
>
> > ActivityManager manager = (ActivityManager)context.getSystemService
> > (Context.ACTIVITY_SERVICE);
> > List<RunningTaskInfo> tasks = manager.getRunningTasks(10);
> > RunningTaskInfo info = tasks.get(arg0);
> > LayoutInflater inflater = (LayoutInflater)context.getSystemService
> > (Context.LAYOUT_INFLATER_SERVICE);
> > View view = inflater.inflate(R.layout.taskitem, null);
> > ImageView image = (ImageView)view.findViewById(R.id.image);
> > TextView label = (TextView)view.findViewById(R.id.label);
> > label.setText(info.baseActivity.getPackageName());
> > Bitmap bmp = info.thumbnail;
> > image.setImageBitmap(bmp);
>
> --
> 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. All such questions should be posted on public
> forums, where I and others can see and answer them.
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