Hi Ali, This is perfectly normal.
All is explained in the DevGuide on developer.android.com: http://developer.android.com/guide/topics/resources/runtime-changes.html On Jun 20, 4:07 pm, Ali Chousein <[email protected]> wrote: > Hi, > > I've been experimenting with orientation change and have seen a > strange behavior (at least to my opinion) when I change the > orientation from landscape to portrait. To make the explanation more > concrete let's consider the following super-simple code: > > 1. import android.app.Activity; > 2. import android.os.Bundle; > 3. > 4. public class HelloAndroid extends Activity > 5. { > 6. �...@override > 7. public void onCreate(Bundle savedInstanceState) > 8. { > 9. super.onCreate(savedInstanceState); > 10. } > 11. > 12. �...@override > 13. protected void onDestroy() > 14. { > 15. super.onDestroy(); > 16. } > 17. } > > I put breakpoints at lines 9 and 15 and start the emulator in debug > mode. The application starts and hits the breakpoint at line 9; so far > so good. Then I press Ctrl+F11 to change the orientation from portrait > to landscape. The debugger stops first at line 15 and then line 9. > Everyhting normal so far. I hit once again Ctrl+F11 to change the > orientation from landscape to portrait and some mumbo-jumbo starts > happening. Here is the sequence of function calls I observe: > > 1.onDestroy() > 2.onCreate() > 3.onDestroy() > 4.onCreate() > > I really fail to understand why the platform needs to make the calls > "2.onCreate()" and "3.onDestroy()". Can anyone explain why this is > happening? At least I don't find it convenient because I need to > implement more logic, because the extra calls "2.onCreate()" and > "3.onDestroy()" cause side effects in my case. However, it would be > interesting to know why these extra calls are taking place. > > Thank you in advance, > > -Ali -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
