What version of the platform are you running against? It could just be a
bug in the platform.
On Wed, Jul 21, 2010 at 11:17 AM, Matty<busbus...@gmail.com> wrote:
My OpenGL stuff seems to draw just fine until some rotate (this is
most reproducible if you rotate back and forth with about a second
between).
Note that Activity B is "singleTop"
Here's a log from the normal startup:
I/System.out(17209): Activity A:onCreate()
I/System.out(17209): Start Activity B from Activity A
I/System.out(17209): Activity B:onCreate()
I/System.out(17209): Activity B:onResume()
When I rotate and things are fine:
I/System.out(17209): Activity B:onPause()
I/System.out(17209): Activity B:onDestroy()
I/System.out(17209): Activity B:onCreate()
I/System.out(17209): Activity B:onResume()
I/System.out(17209): Activity A:onCreate()
I/System.out(17209): Start Activity B from Activity A
I/System.out(17209): Activity B:onPause()
I/System.out(17209): Activity B:onResume()
So it's actually restoring B before re-creating activity A... But then
A resumes B... I think it's doing B-then-A because A is shown through
the translucent activity B? For normal cases this works fine...
I was able to reproduce the issue by rotating back and forth
repeatedly... I sort of had to do it while the screen stayed grey, so
I'm not sure exactly when the problem started, but I'm seeing
something useful from the log:
I/System.out(17910): Start Activity B from Activity A
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onResume()
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onDestroy()
I/System.out(17910): Activity B:onCreate()
I/System.out(17910): Activity B:onResume()
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onDestroy()
I/System.out(17910): Activity B:onCreate()
I/System.out(17910): Activity B:onResume()
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onDestroy()
I/System.out(17910): Activity B:onCreate()
I/System.out(17910): Activity B:onResume()
I/System.out(17910): Activity B:onPause()
I/System.out(17910): Activity B:onDestroy()
It looks like when you rotate that fast, Android doesn't even get to
tell anything to Activity A! Somehow it got lost, and after that, I
see continuing messsages of:
W/SurfaceComposerClient(17910): lock_layer timed out (is the CPU
pegged?) layer=2, lcblk=0x420d0120, state=0000000e (was 0000000e)
Is there any way around this? Am I being to mean with my rotations?
On Jul 21, 1:12 pm, Dianne Hackborn<hack...@android.com> wrote:
Have you made sure your SurfaceView UI is actually drawing regularly, and
especially redrawing itself as soon as possible with the new size?
On Wed, Jul 21, 2010 at 8:02 AM, Matty<busbus...@gmail.com> wrote:
Thanks for the quick response Dianne.
I have an activity that uses OpenGL, and if I rotate at just the
right time, the log prints
W/SurfaceComposerClient( 749): lock_layer timed out (is the CPU
pegged?) layer=2, lcblk=0x420d0120, state=0000000e (was 0000000e)
I basically don't want the Activity to hang. I'm using a plain
android.opengl.GLSurfaceView.
There are 2 activities involved. A,B. B is started from A using
startActivityForResult, and is "translucent". On rotate, both finish,
and then I start A (which might work) which then starts an intent for
B. If I rotate at the right time, I see the message above, and
sometimes Activity A draws properly, but usually not quite (only draws
some of the screen, or a rotated version of the opposite orientation),
and it seems like B is somehow blocked because of the message above.
Activity B has the GLSurfaceView.
Any advice is greatly appreciated.
On Jul 21, 9:22 am, Dianne Hackborn<hack...@android.com> wrote:
What problem is this causing you that you are trying to fix?
On Wed, Jul 21, 2010 at 5:47 AM, Matty<busbus...@gmail.com> wrote:
I have looked through many posts on this issue, and I've concluded
that there's not much I can do to prevent it... I am able to
reproduce
this error when repeatedly rotating an Activity that uses OpenGL.
W/SurfaceComposerClient( 749): lock_layer timed out (is the CPU
pegged?) layer=2, lcblk=0x420d0120, state=0000000e (was 0000000e)
For reference:
I'm calling GLSurfaceView.onPause() and onResume() on activity
pause
and resume...
My question is:
Can I detect this error in my java code, so I can try to do
something
extra to correct it?
Is there an ErrorListener, or an object I can access to find out
about
when this occurs? I have tried
((EGL10) EGLContext.getEGL()).eglGetError();
but does not report an error. I'm guessing I'd need some sort of
Surface object?
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Note: please don't send private questions to me, as I don't have time to
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Note: please don't send private questions to me, as I don't have time to
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