Screen blinks when I run my app

Question

I just upgraded my Nexus S to 4.0.3 (different story)

Anyway, my app started to blink on a screen. I unchecked all those developer options but still. It doesn't do it always. But sometime when I turn screen it starts blinking (between black and normal).

Or it can blink when I just run app - on my Login activity. There is no errors in a log..

EDIT

There is no noticeable pattern for blinking. If I kill my app and start - it looks ok. I can use it for a while - OK. When I flip 90 degree blinking may start. Or when I close app and reopen - it may start.

I can kind of operate and switch activities but it is still blinking and doesn't stop even if I leave it alone. Going Home and starting app doesn't help. I can go and kill it and it will be fine at start...

Before I upgraded - I never had such issues and nobody (users) reported it..

EDIT 2

Played with my app little more and I see following pattern in a log (cycles): I tried to comment onResume completely and get cycle between bindData and onCreate

12-28 19:34:47.828: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:47.976: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:48.043: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:48.066: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:48.191: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:48.343: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:48.367: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:48.504: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:48.574: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:48.597: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:48.738: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:48.804: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:48.832: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:49.070: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:49.187: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:49.246: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:49.398: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:49.476: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:49.500: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:49.625: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:49.687: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:49.711: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:49.867: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:50.031: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:50.058: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:50.179: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:50.242: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:50.265: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:50.406: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:50.468: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:50.492: DEBUG/IDATT.HomeActivity(23854): onResume
12-28 19:34:50.621: DEBUG/IDATT.HomeActivity(23854): onCreate
12-28 19:34:50.769: DEBUG/IDATT.HomeActivity(23854): bindData
12-28 19:34:50.797: DEBUG/IDATT.HomeActivity(23854): onResume

Answer 1

I know this is very general, but it might be worth trying anyway:

• Try another phone, with the same firmware. See if it still occurs. After all, it's possible it's a hardware issue.

• See if it happens if you wait a while between switching from and to the application. In other words, press the back arrow, wait ten seconds, see if it ever happens.

• Try writing a trivial app that can reproduce the problem. Or take your existing code and just remove almost all of it.

• Also, what are you doing in your application? Narrow it down.

• Specifically, what are you trying to do when the user hits the back button? Are you trying to kill it completely, or are you just suspending it?