Can I use a Activity that does not display nothing, ie, no calls to setContentView and make it manage what activity shall be displayed? I will have a service running while user is logged in. So my application will be running "forever" until I stop the service. While the service is running, will Android drop the stack of activities?
Example. User logs in , I start the service, switch to contact list actvity ( calling finish() on login) . The user press back or home key to get back to idle. When user selects the application again by clicking on my app's icon, will it always display the contact list or will it show the contact list(ie, the UI stack was dropped, restarting UI again) ? Thanks, André Oriani On 21 abr, 22:44, "Dan U." <[EMAIL PROTECTED]> wrote: > I think the intention is that a login screen activity will always be > launched. You should be able to just check to see if the user is > logged in inside the onCreate of the login activity, then forward to > the main activity (and I think make a finish() call in the login > activity) if they are logged in, else continue to display the login > activity. > > On Apr 21, 6:23 pm, André Oriani <[EMAIL PROTECTED]> wrote: > > > Manmath, > > > Are you talking about using an Activity to 2 views? > > > hackbod, > > > But when user clicks on the app icon, the Activity for login screen > > will always be launched, am I right ? > > And did you mean ApiDemos/src/com/google/android/samples/app/ > > Forwarding.java ? > > > Thanks, > > André > > > On 21 abr, 02:14, Manmath <[EMAIL PROTECTED]> wrote: > > > > Hi André, > > > > The answers are as follows : > > > Ans 1: Use Prefs file to store a boolean value for user logged in > > > status. You can put the following condition on the onCreate(). > > > If(user logged in ) then show list. > > > else show login screen. > > > Ans 2: I am agreed with hackbod. You need to finish the Login > > > activity as soon as your login is completed. > > > > Regards > > > Manmath > > > > On Apr 21, 9:25 am, hackbod <[EMAIL PROTECTED]> wrote: > > > > > The typical way for you to do this is to have the login screen check > > > > to see if it needs to login and, if not, call startActivity() > > > > immediately to display the "real" main screen of the app. In both the > > > > login and no login cases, call finish() immediately after > > > > startActivity() so the user can't navigate back to the login screen. > > > > > In the ApiDemos activity section you will find an example that does > > > > this, though I don't recall off-hand what it is called. > > > > > On Apr 20, 8:24 pm, André Oriani <[EMAIL PROTECTED]> wrote:> Hi all, > > > > > > I am working on a Instant Messaging Application. Okay, The > > > > > applications starts with a login screen that asks for username and > > > > > password. When login key is pressed I start a subactivity to show the > > > > > contact list. > > > > > > I see 2 potential problems here; > > > > > > 1)When user leaves the application, it is still running ( i've > > > > > implemented a service). When user go to Apps folders and selects my > > > > > app. I want it to show the contact list, not to display the login > > > > > screen again > > > > > > 2) if in the account list the user press back key , the app will > > > > > return to login screen and not to home screen > > > > > > Any tips or advices to solve these situations? > > > > > > Tks, > > > > > André --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] Announcing the new M5 SDK! http://android-developers.blogspot.com/2008/02/android-sdk-m5-rc14-now-available.html For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
