What exactly an anti-pop?

I have the origins of an application, and I was debugging some screens.  When I selected a menu item for which to run the function looks like this:

            public void run()
                {
                Contact c= (Contact) contacts.elementAt(listField.getSelectedIndex());
                if (c != null)
                    {
                    RoloContact rc= new RoloContact(c);
                    selectedContact(rc);
                    }
                }

or, like this:

            public void run()
                {
                Contact c= (Contact) contacts.elementAt(listField.getSelectedIndex());
                if (c != null)
                    {
                    RoloContact rc= new RoloContact(c);
                    selectedContact(rc);
                    myApp.popScreen(selScreen);
                    }
                }

the screen doesn't go away (here, myApp is a UIApplication, and, in the first quotation above I placed the myApp.popScreen in function selectedContact).  When I'm right now in the code, I'm not pushing another screen on it again - in fact, she returns to the event loop and there is nothing else to do.

So my question is: the last screen is still visible even though it was released?  I will continue the experiments and can get my answer simply play, but if I do something wrong and, if I get another screen on top of it and the top is visible, this means that screen (or earlier) prior is still hanging around somewhere, consumes resources?

I'll post all other results I have.

TIA,

ANW

It is an interesting experience that you ran. I think you're right - the last screen of closure will leave the app, but apparently to burst the last screen does not work.

Obviously, handed back one battery to the event loop means that the screen is not updated with a new screen (at least as long as your application is in the foreground). That leaves the last screen painted on the screen. I don't think you have a screen damaged lurking everywhere - just the 'ghost' of the screen of the last image always lurking on the screen. I have not tried, but my guess is that if you changed to another application, the ghost would not reappear when you changed back.

Tags: BlackBerry Developers

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