Thanks for replying, Xavier. Sorry if I'm missing something, but onDestroy() is called on the stack of Activities in the Task. The default behaviour of Activity.onKeyDown() results in a call to Activity.finish(), hence the onDestroy() call. Thus, I would have expected onDestroy() to free allocs?
I have 3 Activities (A, B and C). A starts B, B starts C. DDMS states that 2.673MB is allocated in total. ** Going BACK and forth from C <-> B a few times and staying on B **. DDMS states that 2.893MB is allocated in total. >From B, BACK to A. DDMS states that 2.890MB is allocated in total. >From A, BACK is pressed to return to HOME. DDMS states that 2.888MB is allocated in total. Cheers James On Apr 14, 10:17 pm, Xavier Ducrohet <[email protected]> wrote: > When hitting back, the application that was at the front is simply > paused. It is not destroyed or quit. > > This allows the app to "restart" instantly if you launch it again. > However if the system needs more memory (to run new app) it can get > killed automatically. > > You should read the lifecycle documentation > athttp://developer.android.com/guide/topics/fundamentals.html#lcycles > > Xav > > > > On Wed, Apr 14, 2010 at 2:04 PM, jamesc <[email protected]> wrote: > > Hi > > > I've just started looking at DDMS with my app, and have been using the > > Heap tool. > > > Whilst I observe memory allocations occur and the occasional freeing > > up of memory upon GC, there is a general trend upwards. I also > > noticed this on the APIDemos example code. Furthermore, when I press > > BACK to return to the homescreen, I would have expected that all the > > allocated memory (for the app) would have been freed. Instead, I see > > the 'allocated' value remain as it was before I pressed the BACK key. > > Is memory management as straight forward as I am assuming, or is there > > more to it than this? Or am I misunderstanding what the Heap tool is > > telling me? > > > Cheers > > > James > > > -- > > 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 > > > To unsubscribe, reply using "remove me" as the subject. > > -- > Xavier Ducrohet > Android SDK Tech Lead > Google Inc. > > Please do not send me questions directly. Thanks! -- 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
