You should also read the Application Fundamentals doc, which describes the relationship between activities and tasks and how these are -not- related to processes or threads: http://developer.android.com/guide/topics/fundamentals.html
On Fri, Jun 26, 2009 at 4:18 PM, Doug <[email protected]> wrote: > > The startActivity() methods require the calling context to be an > Activity - otherwise the 'FLAG_ACTIVITY_NEW_TASK' flag is required. > This is why when you try to start an activity from the Application > object, or a Receiver you must specify this flag. > > See: > http://developer.android.com/reference/android/app/Activity.html#startActivity(android.content.Intent)<http://developer.android.com/reference/android/app/Activity.html#startActivity%28android.content.Intent%29> > (note that it specifical mentions "This implementation overrides the > base version, providing information about the activity performing the > launch. Because of this additional information, the > FLAG_ACTIVITY_NEW_TASK launch flag is not required") > > Doug > > On Jun 22, 9:37 pm, ani <[email protected]> wrote: > > Guys, > > > > I would like to know the reason behind this behaviour.I have a > > broadcast reciever and in onrecieve i am trying to start an > > activity,however if i am not giving the flags it is giving an > > exception .On declaring the flags it is working perfectly fine,why? > > > > I was under the impression that onRecieve runs in the main UI thread > > and we can launch an activity in onRecieve.Error given by the emulator > > is self explanatory but still why do i need to create an activity in a > > new task(only in onRecieve)? > > > > onRecieve { > > Intent intent4activity2 = new Intent > > ("android.intent.action.activity2"); > > //intent4activity2.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK); > > arg0.startActivity(intent4activity2); > > > > } > > > > regards, > > ani > > > -- 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 -~----------~----~----~----~------~----~------~--~---
