Thanks for the answer Dianne. Yes, i meant calling new Dialog manually in option 2. I will save the instance state and go about it that way.
On Tue, Oct 6, 2009 at 11:39 AM, Dianne Hackborn <[email protected]>wrote: > I'm not sure what you mean by option 2 -- an application should pretty much > never create a dialog that is not owned by an activity. It needs to be > associated with an owning activity to be properly Z-ordered and otherwise > managed with other apps/activities. > > If you are talking about the difference between using onCreateDialog() vs. > manually calling new Dialog() to display a dialog on the activity, well in > the second case your activity just need to take care of all of the > management of the dialog without really much help from the system: in > particular, make sure that you properly save and restore its state as your > activity's onSaveInstanceState() is called and you later receive that state > in onCreate(). > > > On Mon, Oct 5, 2009 at 10:34 PM, Android Development > <[email protected]>wrote: > >> Hello, >> I have a requirement for showing dialogs in my application. Alert dialogs >> fulfill by needs for now. >> >> I wish to discuss..and conceptually understand in the process, the exact >> relationship between the Activity that is being displayed at a given point >> of time...and the Dialog that pops up on the screen. >> >> The Android documentation provides us with 2 options regarding this: >> >> 1. To bind the dialog with the activity, making the current activity the >> 'owner' of this dialog for managing its state. In this case, we create the >> Dialog in the onCreateDialog callback. >> >> 2. To create a dialog 'outside' of the activity's context, where the >> activity is no longer the owner of this dialog. >> >> I wish to understand what extra liabilities will the developer face if I >> follow Option # 2? >> >> My requirement is for option 2 above. I wish to display a dialog for an >> incoming call. However, the user may be at any 'page' (activity) of my >> application when the call is received. Hence, i cannot predict the activity >> that would be displaying at that instant, when i need to display the dialog >> for the incoming call. >> >> My questions are as follows: >> >> a) Who manages the Dialog state in case of Option 2 and how ? >> >> b) What if the user flips the screen when the dialog is being displayed by >> following Option 2 above ? >> >> c) Can any user defined object (Eg: CallManager in my case) be assigned >> the owner of the Dialog being displayed ? >> >> Any insight/answers are very much appreciated.... >> >> Thanks for the help >> >> Best Regards >> >> AD. >> >> >> > > > -- > 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 -~----------~----~----~----~------~----~------~--~---
