pushGlobalScreen restrictions?

Is it possible to display several showing global screens at the same time in the order that they are pushed on the stack?

If I push a full screen of a background application using

synchronized (Application.getEventLock()){   Ui.getUiEngine().pushGlobalScreen(paramGui, 10, UiApplication.GLOBAL_QUEUE);}

The screen is displayed as expected, but if I press another overall screen (which extends PopupScreen) since the first one in the same way with priority 9 - it is shown, but one disappears showing the homescreen in the background.

After closing the popup on the screen, the first full-screen appears again.

JDE 4.2.1

Tests on 8100 4.5.0.37

Good question!

Today, the only limit to the global screen on the BlackBerry is that only the overall screen can be shown at once.  Each global screen is placed in a queue based on the priority of the specified screen.  The screen with the highest priority will appear to the user, while other global screens will be held off the screen in the queue.  Once the screen of higher priority is popped, the screen with the next highest priority will appear.

Note that there are two screens that will always be a higher priority than anything that can define the application third - the dialog box to phone incoming and the lock screen.

Finally, remember that the call to push a global screen does NOT block.  Therefore, you must add additional logic to your application (by comparison with modal dialog boxes in your own application) to manage this reality if you expect to block waiting for the answer.

Tags: BlackBerry Developers

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