As Dianne posted.. android takes care of destroying apps for you if you don't do it yourself.. when memory/resources is needed. Unlike any other platform (that I know of) for phones/tablets, Android is multi-process.. in that you can run many programs at once. Unlike a computer OS tho, only the top/front Activity is running along with background services (and android/linux OS processes). When you do not explicitly finish your app on back/home button press, it continues to be a running..yet paused process, unless you started a service, in which case it would continue to run. That is why in most books/articles you read, the onStart(Bundle bundle) is there.. to allow you to resume state from when Android OR the user either paused or actually killed your app to regain resources it might have been consuming. It's to allow you on the onPaus() to save state that may be needed on the onResume or onStart. I could be wrong..still getting my bearings on this as well, but onStart() is called when your app first starts with NULL passed in. If your app was shut down by Android while it was running, then the the onStart() is really a sort of onResume.. only the Bundle passed in won't be null. onResume is called when your app was paused due to the user pressing back/home or something else..like an incoming phone call or sms message or something becomes the front/top activity.. and then control returns to your app.
On Tue, Jan 12, 2010 at 8:27 PM, Kumar Bibek <coomar....@gmail.com> wrote: > Even I was confused as to why the process should be running even after > I exited my app. But then I realized that I dont have to care about > that.' > > Kumar Bibek > http://tech-droid.blogspot.com > > On Jan 13, 9:07 am, Dianne Hackborn <hack...@android.com> wrote: > > That is working as intended, as described here: > > > > http://developer.android.com/guide/topics/fundamentals.html#proclife > > > > On Tue, Jan 12, 2010 at 7:08 PM, Android Developer < > kavithasuni...@gmail.com > > > > > > > > > wrote: > > > Hi, > > > > > I have an application which has one activity. The application is > > > launched. When i say back, OnDestory() would be called. This means > > > that the activity is being killed. > > > > > What will happen to the process? Will the process also be killed? But > > > when i use ps command i could see the process still running. > > > > > Will the process not be killed? > > > Can someone explain this in detail or provide from reference to get > > > information on the same. > > > > > Regards > > > > > -- > > > You received this message because you are subscribed to the Google > > > Groups "Android Developers" group. > > > To post to this group, send email to > android-developers@googlegroups.com > > > To unsubscribe from this group, send email to > > > android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> > <android-developers%2bunsubscr...@googlegroups.com<android-developers%252bunsubscr...@googlegroups.com> > > > > > For more options, visit this group at > > >http://groups.google.com/group/android-developers?hl=en > > > > -- > > 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 > > 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 android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com<android-developers%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en >
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