Looks like an easier way to do this might be to set android:nohistory to true in the manifest. (http://developer.android.com/guide/topics/ manifest/activity-element.html#nohist)
On May 18, 9:10 am, blcooley <[email protected]> wrote: > In that case, you could build a "hub" Activity that can start each of > your four Activities via startActivityForResult, then have the > Activities call setResult, passing back an identifier that the hub > Activity inspects in onActivityResult and uses to determine the next > Activity to start. > > That way, your Activities would get destroyed rather that stacking up > until the OS decided to destroy them to reclaim the memory. The bad > thing is that it might break user expectations with respect to the > back button. > > On May 17, 9:09 pm, ls02 <[email protected]> wrote: > > > > > > > The activity stack in my real app is not hard coded. A can start B, or > > C which can start D and D can start A or B or C depending on user > > selection or other flow. And this happens rather frequently. Each of > > them in reality should exist in only one instance and the activity > > should be shown or brought to top rather then re-created. However, I > > can handle re-creating activity when started from another activity, I > > just need to ensure that previous activity instance is completely > > destroyed and all its resources are de-alocated and freed. > > > On May 17, 9:56 pm, blcooley <[email protected]> wrote: > > > > If you need information from B to be fed back to A, then start B by > > > calling startActivityForResult. Then, when B exits, call setResult, > > > and A will be on top of the Activity stack and its onActivityResult > > > will fire. > > > > If you don't need information from B, then you can start B using > > > startActivity. A will still be on top of the Activity stack when B > > > exits. > > > > Best regards, > > > Brian Cooley > > > > On May 17, 7:16 pm, ls02 <[email protected]> wrote: > > > > > My understanding there is no way to start another activity reusing > > > > existing activity instance. Both startActivity and > > > > startActivityForResult create a new activity instance. > > > > -- > > > 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 > > > 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 [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group > > athttp://groups.google.com/group/android-developers?hl=en-Hide quoted text - > > > - Show quoted text - > > -- > 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 > athttp://groups.google.com/group/android-developers?hl=en- Hide quoted text - > > - Show quoted text - -- 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
