list filed with menu navigation problem

I list filed and I ' I use navigation () method to get the row index selected by a click but navigation click () method does not work, when I click on list fied line menu will open here is my code

list = new ListField() {}
protected boolean navigationClick (int status, int time)
{
index = list.getSelectedIndex ();
System.out.println ("index is" + index);
Dialog.Inform(""+index);
Returns true;
}

};
list.setEmptyString ("Empty", DrawStyle.HCENTER);
list.setRowHeight (2 * getFont () .getHeight ());
list.setCallback (this);
List.Invalidate ();

{public drawListRow Sub (ListField listField, Graphics g, int index, int y, int width)}
TODO self-generating method stub

String text = (String) favector.elementAt (index);

g.setColor (0x000000);
g.drawLine (0, y, Display.getWidth (), y);
g.drawText (text, 0, y, DrawStyle.ELLIPSIS, width);

}

public Object get (ListField listField, int index) {}
TODO self-generating method stub
Return favector.elementAt (index);
}

public int getPreferredWidth (ListField listField) {}
TODO self-generating method stub

Return Display.getWidth ();
}
public int indexOfList (String prefix, int start, ListField listField) {}
TODO self-generating method stub
return 0;
}

Here is my update of the code, sorry the bad code

public class Mysearch extends MainScreen implements FieldChangeListener, ListFieldCallback{

    private VerticalFieldManager mainManager;
    private VerticalFieldManager subManager;
    private Bitmap _backgroundBitmap = Bitmap.getBitmapResource("a.png");
    private int deviceWidth = Display.getWidth();
    private int deviceHeight = Display.getHeight();
    ButtonField gobtn;
    EditField editfild = new EditField();
    ListField list;
    String getedtflddata;
    Vector favector;
    URI str;
    Database db = null;
    int index;
    String text;

    public Mysearch() {
        // TODO Auto-generated constructor stub
        super(NO_VERTICAL_SCROLL);
        setTitle("Search");

        editfild.setBorder( BorderFactory.createSimpleBorder( new XYEdges(2, 2, 2, 2),
                new XYEdges(Color.BLACK, Color.BLACK, Color.BLACK, Color.BLACK), Border.STYLE_SOLID));
        editfild.setBackground(BackgroundFactory.createSolidBackground(Color.WHITE));
        gobtn = new ButtonField("go",ButtonField.CONSUME_CLICK);

        list = new ListField(){

            protected boolean navigationClick(int status, int time) {
                // TODO Auto-generated method stub
                index = list.getSelectedIndex();
                Dialog.alert(""+index);
                return super.navigationClick(status, time);
            }

        };
        list.setEmptyString("Empty", DrawStyle.HCENTER);
        list.setRowHeight(2*getFont().getHeight());
        list.setCallback(this);
        list.invalidate();

        //this manager is used for the static background image
        mainManager = new VerticalFieldManager(Manager.NO_VERTICAL_SCROLL | Manager.NO_VERTICAL_SCROLLBAR )
        {
            public void paint(Graphics graphics)
            {
                graphics.clear();
                graphics.drawBitmap(0, 0, deviceWidth, deviceHeight, _backgroundBitmap, 0, 0);
                super.paint(graphics);
            }
        };

        //this manger is used for adding the componentes
        subManager = new VerticalFieldManager( Manager.VERTICAL_SCROLL |  Manager.VERTICAL_SCROLLBAR )
        {
            protected void sublayout(int maxWidth, int maxHeight)
            {
                int displayWidth = deviceWidth;
                int displayHeight = deviceHeight;

                super.sublayout( displayWidth, displayHeight);
                setExtent( displayWidth, displayHeight);
            }
        };

        /// add your component to this subManager
        subManager.add(editfild);
        subManager.add(gobtn);
        subManager.add(list);
        gobtn.setChangeListener(this);

        //add subManager over the mainManager
        mainManager.add(subManager);

        //finally add the mainManager over the screen
        this.add(mainManager);   

    }

    public void fieldChanged(Field field, int arg1) {
        // TODO Auto-generated method stub
            getedtflddata = editfild.getText().toString();
            System.out.println("string value"+getedtflddata.length());
            if(!(getedtflddata.length() == 0)){
            favector = new Vector();
            try{
                System.out.println("inside try======");
                str = URI.create("file:///SDCard/mydatabase.db");
                db = DatabaseFactory.open(str);
                db.beginTransaction();
                Statement statmnt1 = db.createStatement(
                                "select * from tbthought where goldenquote like '% "
                                        + getedtflddata + " %' or goldenquote like '"
                                        + getedtflddata + "' or goldenquote like '"
                                        + getedtflddata + " ' or goldenquote like '% "
                                        + getedtflddata + "' or goldenquote like ' "
                                        + getedtflddata + "' or goldenquote like '"
                                        + getedtflddata
                                        + " %' or goldenquote like '% "
                                        + getedtflddata + ".'");

                statmnt1.prepare();
                Cursor c = statmnt1.getCursor();
                if(c.isEmpty())
                {
                    Status.show("no match found");
                    System.out.println("no data found");
                }else
                {
                    c.first();
                    Row mr = null;
                     int il = 0;
                     while(c.next()) {

                       mr = c.getRow();
                       il++;
                       System.out.println("---"+mr.getString(5));

                       favector.addElement(mr.getString(5));
                     }
                     list.setSize(favector.size());
                     }
                     statmnt1.execute();
                     statmnt1.close();

                     db.commitTransaction();
                     db.close();

                     System.out.println("gfavector.size()="+favector.size());
                }catch(Exception e)
                {
                    try {
                        db.close();
                    } catch (Exception e1) {
                        // TODO Auto-generated catch block
                        System.out.println("go btn excptn="+e1.getMessage());
                        e1.printStackTrace();
                    }
                    System.out.println("go btn excptn="+e.getMessage());
                }
            }else{

                Status.show("please write some word..");
                System.out.println("else part----------");
            }

    }

    public void drawListRow(ListField listField, Graphics g, int index,int y, int width) {
        // TODO Auto-generated method stub

        String text = (String)favector.elementAt(index);

        g.setColor(0x000000);
        g.drawLine(0, y, Display.getWidth(), y);
        g.drawText(text,0, y, DrawStyle.ELLIPSIS, width);   

    }

    public Object get(ListField listField, int index) {
        // TODO Auto-generated method stub
        return favector.elementAt(index);
    }

    public int getPreferredWidth(ListField listField) {
        // TODO Auto-generated method stub

        return  Display.getWidth();
    }
    public int indexOfList(ListField listField, String prefix, int start) {
        // TODO Auto-generated method stub
        return favector.indexOf(prefix, start);
    }

}

Tags: BlackBerry Developers

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