[android-developers] Re: RunningTaskInfo.thumbnail is always null and onCreateThumbnail never called
There is just an if statement in android.app.ActivityThread.java that has it
currently turned off.
On Fri, Jan 23, 2009 at 8:34 PM, drasticp drast...@gmail.com wrote:
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);
ListRunningTaskInfo 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.
--
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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[android-developers] Re: RunningTaskInfo.thumbnail is always null and onCreateThumbnail never called
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);
ListRunningTaskInfo 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.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers-unsubscr...@googlegroups.com
For more options, visit this group at
http://groups.google.com/group/android-developers?hl=en
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[android-developers] Re: RunningTaskInfo.thumbnail is always null and onCreateThumbnail never called
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);
ListRunningTaskInfo 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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You received this message because you are subscribed to the Google
Groups Android Developers group.
To post to this group, send email to android-developers@googlegroups.com
To unsubscribe from this group, send email to
android-developers-unsubscr...@googlegroups.com
For more options, visit this group at
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