Java Development

[simon_hain]

remote the invokeandwait, with uiengine you don't need to synchronize on the event thread.

edit:

if you want the dialog to block use pushModalScreen

[nikita18]

Thank you Simon. Can you please tell me how I can remote the invokeAnd Wait() ? I didn't synchronize the event thread now, but its not showing any dialog box on my application startup. My code below:

Application.getApplication().invokeAndWait(new Runnable(){
            public void run() {                      
                        //with this UiEngine I'm able to pushGlobal dialogs                        
                        UiEngine ui = Ui.getUiEngine();
                        Screen screen = new Dialog(Dialog.D_OK, "View permissions, click on Menu button and Click on Save", Dialog.OK, Bitmap.getPredefinedBitmap(Bitmap.EXCLAMATION), Manager.VERTICAL_SCROLL);                       
                        ui.pushModalScreen(screen);
                        MyBackgroundScreen.scr.invalidate();    //scr is my screen object        	            
            }
		});

 Can you please check again? 

[simon_hain]

in this code i still see invokeandwait, just remove it.

[nikita18]

Okay, my code now is:

UiEngine ui = Ui.getUiEngine();
                        Screen screen = new Dialog(Dialog.D_OK, "View permissions, click on Menu button and Click on Save", Dialog.OK, Bitmap.getPredefinedBitmap(Bitmap.EXCLAMATION), Manager.VERTICAL_SCROLL);
                    
                        ui.pushModalScreen(screen);
                        ShotUpScreen.scr.invalidate();

//invoke permissions

 But its still not showing any pop ups.

[nikita18]

Please help me simon_hain .

[simon_hain]

use http://www.blackberry.com/developers/docs/7.1.0api/net/rim/device/api/ui/UiEngine.html#pushGlobalScr...

[nikita18]

You mean like this:

private void setPermissions(){	
  UiEngine ui = Ui.getUiEngine();
        Screen screen = new Dialog(Dialog.D_OK, "View permissions,    click on Menu button and Click on Save", Dialog.OK, Bitmap.getPredefinedBitmap(Bitmap.EXCLAMATION),    Manager.VERTICAL_SCROLL);
        ui.pushGlobalScreen(screen, 1, UiEngine.GLOBAL_QUEUE);        
        MyBackgroundScreen.scr.invalidate();

  //invoke permissions
}

 But it still hangs/blocks my device screen. What do I do now? 

[simon_hain]

what do you mean with "hangs/blocks my device screen" ?

[nikita18]

I mean when I install my application, my device hangs. I see the cropped image of "Downloading MyBackgroundApp"..