Re: [android-developers] Re: onPause not being followed by onStop and onDestroy...

2010-10-07 Thread Kostya Vasilyev
 Are you careful about calling superclass methods in all your onStart / 
onStop / onPause / onResume?


-- Kostya

07.10.2010 19:15, sdphil пишет:

okay, if the system decides to kill your activity, it won't call it.
but what i'm seeing is really weird.  I have an activity stack A, B
(with B being on top / visible).  When I hit back on B, i get to
activity A, but onStop is never called.  Now, when I hit back on A, I
go back to the home screen, and then B's onStop (and then onDestroy)
is called.

The other strange thing is that if from activity A, i do a
startActivity on activity B, it won't start it; i think my activity B
is in some wonked out state.

On Oct 7, 7:55 am, Kostya Vasilyev  wrote:

   See here:

http://developer.android.com/reference/android/app/Activity.html#Acti...

onPause is guaranteed to be called, but onStop/onDestroy is not.

If Android needs memory after your activity has been paused, it may kill
your process. This happens without invoking any callbacks.

-- Kostya

07.10.2010 18:51, sdphil пишет:




it should at least call onStop -- because the activity is no longer
visible.
On Oct 7, 7:10 am, Prakash Iyerwrote:

It is not required that an onPause is always followed by onStop - in fact if
you press the home key that's what I have seen as the default behavior. This
way if the user goes back to your app, thru the home key press or from
launchpad, the onResume will be called and it will all be much faster than
doing an onCreate which would otherwise have been required.
On Thu, Oct 7, 2010 at 10:06 AM, sdphilwrote:

I am seeing an issue where when I hit the "back" button, I get the
onPause call, but it isn't followed by onStop and onDestroy.
On most phones, I see this, but on one particular phone (Droid-X), I
don't
Any ideas?
tia.
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Re: [android-developers] Re: onPause not being followed by onStop and onDestroy...

2010-10-07 Thread Kostya Vasilyev

 See here:

http://developer.android.com/reference/android/app/Activity.html#ActivityLifecycle

onPause is guaranteed to be called, but onStop/onDestroy is not.

If Android needs memory after your activity has been paused, it may kill 
your process. This happens without invoking any callbacks.


-- Kostya

07.10.2010 18:51, sdphil пишет:

it should at least call onStop -- because the activity is no longer
visible.

On Oct 7, 7:10 am, Prakash Iyer  wrote:

It is not required that an onPause is always followed by onStop - in fact if
you press the home key that's what I have seen as the default behavior. This
way if the user goes back to your app, thru the home key press or from
launchpad, the onResume will be called and it will all be much faster than
doing an onCreate which would otherwise have been required.

On Thu, Oct 7, 2010 at 10:06 AM, sdphil  wrote:

I am seeing an issue where when I hit the "back" button, I get the
onPause call, but it isn't followed by onStop and onDestroy.
On most phones, I see this, but on one particular phone (Droid-X), I
don't
Any ideas?
tia.
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