I have already debugged the code lots of times with breakpoints, but I
can not find the cause for the black screen. The thread runs like it
should and no instances are null.
On Sep 7, 10:30 am, MarcoAndroid <marco...@gmail.com> wrote:
> Are you sure you know which code gets executed? I'd add breakpoints/
> logging statements to see what's happening... At least a logstatement
> on all onStart(), onResume() onXYZ() methods entry points. Maybe then
> you get a better idea on what's going on.
>
> On 6 sep, 18:58, MobileVisuals <eyv...@astralvisuals.com> wrote:
>
> > Thanks, I added this code to the app, but the problem remains. I don't
> > know if I should use suspend and resume on the GUI thread, because the
> > documentation says that it could cause deadlocks.Do you know if there
> > is some more that I can do to solve this issue?
>
> > protected void onPause() {
>
> > super.onPause();
>
> > if (!menu2d)
> > glSurfaceView.onPause();
> > else
> > mLunarView.getThread().suspend();
>
> > }
> > protected void onResume() {
> > super.onResume();
> > if (!menu2d)
> > glSurfaceView.onResume();
> > else
> > mLunarView.getThread().resume();
>
> > }
>
> > On Sep 6, 2:43 pm, Daniel Drozdzewski <daniel.drozdzew...@gmail.com>
> > wrote:
>
> > > On 6 September 2011 13:32, MobileVisuals <eyv...@astralvisuals.com> wrote:
>
> > > > My app has a SurfaceView and a GLSurfaceView. I can switch back and
> > > > forth between these. The SurfaceView is the application GUI.
>
> > > > I test switching to another app. I can then switch back to the
> > > > GLSurfaceView in my app. I then try to switch back to the
> > > > GLSurfaceView,where the application GUI is. Here is where the problem
> > > > occurs. A black screen is shown instead of the GUI.
>
> > > > The app still works, because the application menu is shown when the
> > > > menu button is pressed. But nothing is drawn on the screen, it is only
> > > > black. I have tried almost everything to fix this, I have checked that
> > > > the thread is running and that no instance of any object (like the
> > > > SurfaceHolder) is null. What could be the reason for this black screen?
>
> > > Do you call GLSurfaceView.resume() from Activity.resume() ?
>
> > > By the same token you should be calling GLSurfaceView.pause() in the
> > > right moment of your activity lifecycle.
>
> > > HTH
>
> > > --
> > > Daniel Drozdzewski
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