Array of Images - layout

Question

I'm working on a blackberry project and for that I need to create grid layout. I'm working on "Blackberry java sdk".
I'm using this code
public class GridScreen extends UiApplication {
// main method
public static void main(String[] args) {
GridScreen theApp = new GridScreen();
UiApplication.getUiApplication().pushScreen(new GFMScreen());
theApp.enterEventDispatcher();
}
}
// VFM
class GFMScreen extends MainScreen {
public GFMScreen() {
// this doesnt do anything for VCENTER!!
//super(Field.USE_ALL_HEIGHT);
// create a grid field manager, with 2 cols and 0 style param for super class
// style of Manager.FIELD_VCENTER | Field.USE_ALL_HEIGHT doesnt do a thing!
int columns = 2;
final GridFieldManager gfm = new GridFieldManager(columns, 0);
// add some items to the screen
int size = 6;
BitmapField[] fRay = new BitmapField[size];
for (int i = 0; i < size; i++) {
// create an bitmap field that's centered H + V (inside grid space)
fRay[i] = new BitmapField(loadBitmap("images/" + (i + 1) + ".png"),
Field.FIELD_HCENTER | Field.FIELD_VCENTER | Field.FOCUSABLE);
gfm.add(fRay[i]);
}
// set padding on top/bottom
{
// add gfm to screen - this does not center the gfm on the screen... is top aligned no matter what!
add(gfm);
int gfmHeight = 48 * (size / columns);
int borderHeight = (Display.getHeight() - gfmHeight) / 2;
gfm.setBorder(BorderFactory.createSimpleBorder(
new XYEdges(borderHeight, 0, borderHeight, 0),
Border.STYLE_TRANSPARENT));
System.out.println("border=" + borderHeight);
System.out.println("display=" + Display.getHeight());
System.out.println("gfm=" + gfmHeight);
}
}
/** #param res eg "images/icon.png" */
public static Bitmap loadBitmap(String res) {
EncodedImage img = EncodedImage.getEncodedImageResource(res);
return img.getBitmap();
}
}// end class
What is wrong in this code?
Is there any best approch to create grid layout in BlackBerry.
In above code error is "Display.getHeight() is not define".

Answer 1

Hope this code helps:
Bitmap[] images = new Bitmap[6];
for ((int i = 0; i < 6; i++) {
string filename = "images/" + String.valueOf(i + 1) + ".png";
images[i] = Bitmap.getBitmapResource(filename);
}
}