Android: Activity.onDestroy() is not called when Dalvik kills this Activity
I’m confused about
Activity.onDestroy(). I need to free some resources when my Activity is destroyed, but it seems like onDestroy() is called just when i press “Back” key, but not when my Activity is killed by Dalvik. I tested it just by adding log:
Log.v("my_tag", "onDestroy() called");
and the same in onCreate() method too:
Log.v("my_tag", "onCreate() called");
Then i start my Activity, and i see in logs:
onCreate() called. I press “Back” key and then start Activity again, then i see:
onDestroy() called onCreate() called
Then i press “Home” key and go to my Activity again, logs does not change. All right here.
Then i press “Home” key again and start some really “heavy” applications. In logs is nothing about onDestroy(), but when i start my Activity again, i see in logs:
onCreate() called! So, onDestroy() was not called, but my Activity was killed. What’s wrong?
One Solution collect form web for “Android: Activity.onDestroy() is not called when Dalvik kills this Activity”
From the onDestroy() documentation:
[..] There are situations where the system will simply kill the activity’s
hosting process without calling this method (or any others) in it, so
it should not be used to do things that are intended to remain around
after the process goes away.
In Android, you won’t get a guaranteed
If you want to release some resources, you should do that in