Android application orientation change behavior

Question

I'm done with developing an android application and in phase of testing it. I've tested it with the simulator and everything is working perfect, but when I deploy it on devices, some of them when you change the screen orientation the application screen starts to flicker.

Any clue where to start the problem investigation from?

Answer 1

When orientation changes from portrait to landscape or vice versa, onCreate gets called again, making the application to start from the beginning. Make sure you are handling it in manifest by declaring android:configChanges="keyboardHidden|orientation" infront of your class name or override onConfigChanged() function.