ListField (s) nested in VerticalFieldManager-> SWIPE/SCROLL with HorizontalFieldManager

I have 2 ListField objects. Each within its own VerticalFieldManager object. 2 VFMs are inside a HorizontalFieldManager object. I am trying to allow the user to BLOW/scrolling of one ListField to another (LEFT/RIGHT). I did not have the TouchEvent portion this again (I guess I'll have to put in place something there).

Here's what I have so far... However, only the first ListField shows with data (random numbers right now). The other is empty. I also want to allow the user to select individual lines in each ListField

All the suggestions/help is appreciated.

See you soon,.

public final class MyScreen extends MainScreen {

    public MyScreen() {
        super(MyScreen.NO_VERTICAL_SCROLL);
        Random rand = new Random();
        HorizontalFieldManager hm = new HorizontalFieldManager(HorizontalFieldManager.HORIZONTAL_SCROLL);
        Vector v1 = new Vector();
        Vector v2 = new Vector();
        for (int i = 0; i < 10; i++) {
            v1.addElement(Integer.toString(rand.nextInt(200)));
            v2.addElement(Integer.toString(rand.nextInt(300)));
        }
        hm.add(new ListManager(v1, "VM lf1"));
        hm.add(new ListManager(v2, "VM lf2"));
        add(hm);

        // Set the displayed title of the screen
        setTitle("MyTitle");

    }

    class ListManager extends VerticalFieldManager {
        private Vector _elements;
        ListField _lf;

        ListManager(Vector elements, String title) {
            super(Manager.VERTICAL_SCROLL | Manager.VERTICAL_SCROLLBAR);
            _lf = new ListField();
            _lf.setCallback(new ListCallback());
            this._elements = elements;
            add(new RichTextField(title));
            add(_lf);
            updateList();
        }

        private class ListCallback implements ListFieldCallback {

            public void drawListRow(ListField list, Graphics g, int index, int y, int w) {
                g.setColor(Color.BLACK);
                String text = (String) _elements.elementAt(index);
                g.drawText(text, 5, y, 0, w);
            }

            public Object get(ListField list, int index) {
                return _elements.elementAt(index);
            }

            public int indexOfList(ListField list, String p, int s) {
                return _elements.indexOf(p, s);
            }

            public int getPreferredWidth(ListField list) {
                return Display.getWidth();
            }
        }

        protected void sublayout(int width, int height) {
            super.sublayout(width, height);

            setExtent(width, height);
        }

        private void updateList() {
            _lf.setSize(_elements.size());
        }

    }
}

The two lists show up... However, the halves just in the same HM. My goal is to have everyone take full screen (visible at the time) only... then the user has to SWIPE (from EAST to WEST) to see the list of the other.

So I changed the following line

super.sublayout(Display.getWidth(), height);

Thanks Peter

Tags: BlackBerry Developers

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