okay. so, if the process is killed, then the static variable would have been killed as well, right? when the process is restarted, the static variable holding the activites will be empty - and as new activites get created, they will be added to this list. in my activity's onCreate() method (base class), I add the activity to the static list and in the onDestroy() method (base class), I remove the activity from the list.
So unless the system kills activites (and not tasks) without my knowledge then I'm not sure I see the hole... Dianne Hackborn wrote: > It is not contrived at all, that is the typical behavior when your app is in > the background and more memory is needed elsewhere. On a G1 class device > where memory is tight, this happens all the time. > > When the process is killed, your activity state remains in the system, and > when the user returns to it they activities are re-created as needed so that > it appears like it had continued running. > > On Thu, Sep 17, 2009 at 6:41 PM, sdphil <[email protected]> wrote: > > > > > that situation seems a bit contrived. if the process is killed, then > > when it gets restarted, doesn't it start the activity from whatever I > > have set in my android manifest file? does it remember what the top > > most activity was when the process was killed? > > > > tia. > > > > On Sep 17, 6:07 pm, Dianne Hackborn <[email protected]> wrote: > > > This will probably break if your process gets killed while in the > > > background. For example, run your app so it has some activities, press > > > home, use adb shell's "ps" to find your process and "kill" to kill it, > > then > > > select it again from home. You process will be restarted, with the > > top-most > > > activity started. None of the others will be running at this point. > > > > > > > > > > > > On Thu, Sep 17, 2009 at 5:55 PM, sdphil <[email protected]> > > wrote: > > > > > > > okay, what I wound up doing was to create a base class that all my > > > > activities derive from. then I keep track of the activities in a > > > > static variable. when a derived activity class calls "finishAll()" it > > > > iterates through the activites it knows about and calls "finish()" on > > > > them (except if it equals "this"). > > > > > > > Then the client calls "startActivity()" and then calls "finish()" > > > > > > > On Sep 17, 12:25 pm, Dianne Hackborn <[email protected]> wrote: > > > > > You can't directly replace the root. The only way I can think > > off-hand > > > > to > > > > > do this is to use CLEAR_TOP when starting the same activity component > > as > > > > > your current root to send an intent down to that root (and finish all > > of > > > > the > > > > > activities in-between, and then handle onNewIntent() there to see > > this > > > > > intent and start the new desired activity and finish itself. > > > > > > > > On Thu, Sep 17, 2009 at 11:27 AM, sdphil <[email protected] > > > > > > > wrote: > > > > > > > > > hi, i want to clear the activity stack and replace it with a new > > > > > > activity as the root activity, even if that activity exists > > somewhere > > > > > > on the stack (or not). > > > > > > > > > i see -- FLAG_ACTIVITY_CLEAR_TOP and FLAG_ACTIVITY_NEW_TASK, but > > > > > > it's not obvious to me how to use those in conjunction to achieve > > what > > > > > > I want. > > > > > > > > > it's like i want to completely restart the task with some activity > > > > > > that i specify as the new root. > > > > > > > > > tia. > > > > > > > > -- > > > > > Dianne Hackborn > > > > > Android framework engineer > > > > > [email protected] > > > > > > > > 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 > > > > > answer them. > > > > > > -- > > > Dianne Hackborn > > > Android framework engineer > > > [email protected] > > > > > > 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 > > > answer them. > > > > > > > > -- > Dianne Hackborn > Android framework engineer > [email protected] > > 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 > answer them. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
