You can use this to transfer active objects across activity instances when a
configuration change is happening:
http://developer.android.com/reference/android/app/Activity.html#onRetainNonConfigurationInstance()
On Fri, Dec 31, 2010 at 2:24 AM, mani wrote:
> I am confused between screen rotation and activity sent back.
>
> My requirement i am trying out in my application is
>
> - when activity goes to idle( meant pressing back ) , i need to stop a
> timer.
> - When screen rotation happens i shouldnt stop a timer.
>
> I also registered for action_configuration_changed to know when the
> screen rotation happens.
>
>IntentFilter filter = new IntentFilter();
>filter.addAction(Intent.ACTION_CONFIGURATION_CHANGED);
>mContext.registerReceiver(mBroadcastReceiver, filter);
>
> private BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver()
> {
>public void onReceive(Context context, Intent intent) {
>String action = intent.getAction();
>if (Intent.ACTION_CONFIGURATION_CHANGED.equals(action)) {
>//updateBackground();
>screeChanged = true;
>System.out.println("On screen changed");
>}
>}
>};
>
>
> When i traced the flow, when back happens this is wat i observed.
>
> Screen rotated from landscape to portrait
>
> I/System.out( 1666): On stop
> I/System.out( 1666): On Destroy
> I/System.out( 1666): On create
> I/System.out( 1666): On resume
> I/System.out( 1666): On screen changed
>
> Screen rotated from portrait to landscape
>
> I/System.out( 1666): On pause
> I/System.out( 1666): On stop
> I/System.out( 1666): On Destroy
> I/System.out( 1666): On create
> I/System.out( 1666): On resume
> I/System.out( 1666): On screen changed
>
> When back pressed:
> --
> I/System.out( 1666): On pause
> I/System.out( 1666): On stop
> I/System.out( 1666): On Destroy
>
>
> All these function calls are similar for both usecase... so any clue
> how do i differentiate my activity is went back or screen changed.
>
> Could somebody throw lights on my problem.
>
> Thanks,
> Mani
>
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--
Dianne Hackborn
Android framework engineer
hack...@android.com
Note: please don't send private questions to me, as I don't have time to
provide private support, and so won't reply to such e-mails. All such
questions should be posted on public forums, where I and others can see and
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