Yes, I have the same problem. "onSurfaceChanged()" is being called twice.
Em quinta-feira, 12 de abril de 2012 12h57min35s UTC-3, Latimerius escreveu:
>
> Hello,
>
> googling for the following problem got me a lot of hits where people
> ask or rant about this but no actual explanation so I figured I'll ask
> here, perhaps someone has an update on the problem.
>
> I'm using stock GLSurfaceView, only subclassed to get onTouchEvent(),
> the rest of it is standard. When coming back to my app (*not*
> starting it anew, that seems to work as expected) I get the following
> sequence of calls:
>
> onSurfaceCreated()
> onSurfaceChanged()
> onDrawFrame()
> onSurfaceChanged()
> onDrawFrame()
> onDrawFrame()
> onDrawFrame()
> ...
>
> The (by now standard ;-)) question is: why is onSurfaceChanged()
> called twice? The calls are identical as far as the callee can tell,
> the GL10 argument refers to the same GL10 instance, the width & height
> are the same, too.
>
> The other question (might have been asked before, too, I haven't come
> across that if so) is: the single onDrawFrame() call which occurs
> between both onSurfaceChanged() calls is strange because whatever gets
> drawn during that call (might be just a simple glClear(), or a full
> scene render, doesn't matter) never seems to make it to the screen,
> never becomes visible. Why is that?
>
> I'm trying to figure out whether it's safe to ignore the issue or hack
> around it, and to decide that it'd be very helpful to understand the
> causes.
>
> Thanks in advance!
>
>
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