What happens after onDestroy()

Question

When my activity is destroyed by OS because of memory (for example when a phone call is interrupting it), then when my activity tries to start again, it doesn't come back to any expected call back except onDestroy(), how can I restore my activity again.

Note: - it doesn't go back to neither onCreate() nor onRestoreInstanceState(). - my activity contains a thread.

Edit: isFinishing() returns false at onPause() (before interruption) and it returns true at onDestroy() when come back again (after interruption is gone).

score 2 · Answer 1 · answered Jul 03 '12 at 11:49

2

You should override the onPause() and the onResume() methods.

When a phonecall or an other event interrupts the execution of you activity, the onPause() is called.

then, when your activity goes on again the onResume will be executed.

answered Jul 03 '12 at 11:49

Thanos Karpouzis

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I already did that, but it doesn't come back to onResume() so I cann't figure out how can I restore my activity. – Alaa Eldin Jul 03 '12 at 11:50
Thanks Thanos for your help, but as I said, it doesn't go to onRsume() after come back, it just goes to onDestroy(). – Alaa Eldin Jul 03 '12 at 11:54
yes, to be honest the onRestoreInstanceState() is the safest way to go... I can't think why is not executed! – Thanos Karpouzis Jul 03 '12 at 11:55
Unless if you haven't override the onSaveInstanceState(), maybe then you have a null state and that why is not executed – Thanos Karpouzis Jul 03 '12 at 11:57
no Thanos, I have overrided it ! anyway, it's mentioned at the life cycle in android website [link](http://developer.android.com/reference/android/app/Activity.html#ActivityLifecycle), but it should go to onCreate() after onDestroy(), but it doesn't !!! – Alaa Eldin Jul 03 '12 at 12:01
Well actually that connection between onDestroy() and onCreate() is not clear, you can see it also on the diagram. This link may be helpful http://stackoverflow.com/a/2441702/1340659 – Thanos Karpouzis Jul 03 '12 at 12:05

score 0 · Accepted Answer · answered Jul 05 '12 at 07:35

My program needs only to set "No History" option of my activity to "false"

at Manifest, Application, Application nodes, then select my activity-

after that I found it doesn't call onDestroy() when try to come back again to my activity, it calls onResume() as expected. and also set "config changes" to "orientation".

What happens after onDestroy()

2 Answers2