How to resolve screen ghosting issue in Kindle?

Question

I am using KRepaintManager.paintImmediately(root, true) from start() in my main class that extends AbstractKindlet to refresh the screen, but there are still ghosting issue there. When pressing and dismissing Menu - the screen clears up. I am wondering what code is doing after the Menu is dismissed?

How to resolve ghosting issue Kindle device?

Code:

KPages pages = new KPages() {
        /**
         * A place holder serialization version ID
         */
        private static final long serialVersionUID = 1L;

        /** {@inheritDoc} */
        public Insets getInsets() {
            return new Insets(00, 20, 20, 20);
        }
};

public static void flashScreen()
{
    EventQueue.invokeLater(new Runnable(){ 
        public void run(){
            KRepaintManager.currentManager(pages).addDirtyRegion(pages, 0, 0, pages.getWidth(), pages.getHeight());
            KRepaintManager.currentManager(pages).paintDirtyRegions(true);
        }
    });

}

Calling flashScreen() while back, forward navigation of KPages.

Yes, It is for flashing the screen. I have used KPages component. I wanted to flash whole screen while page navigation takes place. — nisha.113a5, Mar 26 '12 at 05:28
I'm saying, is it actually flashing the screen, though? Do you see the entire screen flash — Waynn Lue, Mar 26 '12 at 05:48
Are you developing this for the touch or the other devices? do you see anythign flash? — Waynn Lue, Mar 26 '12 at 06:00

score 1 · Accepted Answer · answered Apr 09 '12 at 10:13

1

KRepaintManager.paintImmediately(root, true) is the correct way to flash the entire screen -- sometimes you'll end up with artifacts, still, but there's nothing you can do to prevent that. Hitting the Menu button in general will refresh the screen similarly.

answered Apr 09 '12 at 10:13

Waynn Lue

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Thank you so much for solution. I have used KPages Component. This component contains 100 pages. Each page contains UI. While navigating through pages, I can see ghosting on screen. During back and forward navigation, I wanted to repaint the screen. – nisha.113a5 Apr 09 '12 at 11:02

How to resolve screen ghosting issue in Kindle?

1 Answers1