Starting a service doesn't have anything to do with the activity stack. It is only needed if you actually must have a service running even after the user leaves your app. (And of course you must have a good plan for how you will stop the service, so it doesn't get left running forever.)
On Tue, Apr 20, 2010 at 9:05 PM, Kenneth WON <kenneth...@gmail.com> wrote: > Hi, Dianne Hackborn, > > Thank you! > In the main activity, I will start a service, so I am calling > startService() in onCreate(). > Is that not necessary? > > > > On Apr 21, 11:25 am, Dianne Hackborn <hack...@android.com> wrote: > > Make sure you aren't calling startActivity() anywhere, such as in > > onCreate(). > > > > Look at the log (adb logcat) and event log (adb logcat -b events) to see > > what the system is saying about launching and handling activities. > > > > Please don't use singleTask or singleInstance to fix such problems, they > are > > not needed and have other repercussions you probably don't want. > > > > > > > > > > > > On Tue, Apr 20, 2010 at 7:07 PM, Kenneth WON <kenneth...@gmail.com> > wrote: > > > Hi, thank you for your help! > > > But I tried to add android:launchMode="singleTask" or > > > android:launchMode="singleInstance" in the <activity> before, but it > > > seems not work. > > > The app still running twice or more at the same time by rotate screen > > > or press return button, and launch the app. > > > > > On Apr 21, 4:38 am, "~ TreKing" <treking...@gmail.com> wrote: > > > > On Tue, Apr 20, 2010 at 2:06 AM, Kenneth WON <kenneth...@gmail.com> > > > wrote: > > > > > But my expected result is just have one and only one app A launch. > > > > > > > http://developer.android.com/intl/fr/guide/topics/manifest/activity-e... > > > > < > http://developer.android.com/intl/fr/guide/topics/manifest/activity-e.. > > > .> > > > > > > --------------------------------------------------------------------------- > > > ---------------------- > > > > TreKing - Chicago transit tracking app for Android-powered > deviceshttp:// > > > sites.google.com/site/rezmobileapps/treking > > > > > > -- > > > > 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%2Bunsubs > cr...@googlegroups.com> > > > > For more options, visit this group athttp:// > > > groups.google.com/group/android-developers?hl=en > > > > > -- > > > 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%2Bunsubs > cr...@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 athttp:// > groups.google.com/group/android-developers?hl=en > > -- > 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 > -- 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 For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
