Only in the way that i shows me that i'm actually doing it right...at least not totally wrong. I can happily open my dialog, but it has to happen inside the thread that created the Activity. That's the same one that is active when pressing a key or something. I think of it as some kind of event dispatch thread. However, onDrawFrame() of the renderer doesn't seem to run in this thread...but that's where i want to open the dialog. It's a benchmark and after running all the tests, the dialog with the results should open. But i have no onKeyUp or onCreateOptionsMenu...or whatever. I'm in onDrawFrame() knowing that i want to open my dialog...i just can't. When trying it, it tells me that i have to call Looper.prepare() before doing so. When calling this, it tells me that only the thread that created the Activity is allowed to fiddle around with the views. But i can't find anything to execute something in this thread. I also tried to create the dialog myself and somehow assign it to the Activity, but you can't do that. You can add views...but a dialog isn't a view!?