How to change Background of HorizontalFieldManager - blackberry

Question

I want to set the Background of HorizontalFieldManager.
The sample code I've been searching is setting the background using Gradient for the main screen background.
//create gradient linear for background
this.getMainManager().setBackground(BackgroundFactory.createLinearGradientBackground(0x0099CCFF,
0x0099CCFF,0x00336699,0x00336699)
);
Then I try to use the same pattern to set background to HorizontalFieldManager, since it have this method. But it won't work. Here's the code
HorizontalFieldManager hManager = new HorizontalFieldManager();
Bitmap bitmapImage = null;
bitmapImage = Bitmap.getBitmapResource("img/home.png");
tabHome = new BitmapField(bitmapImage, BitmapField.FOCUSABLE
| BitmapField.HIGHLIGHT_FOCUS);
bitmapImage = Bitmap.getBitmapResource("img/in.png");
tabCheckInOut = new BitmapField(bitmapImage, BitmapField.FOCUSABLE
| BitmapField.HIGHLIGHT_FOCUS);
bitmapImage = Bitmap.getBitmapResource("img/barcode.png");
tabBarcode = new BitmapField(bitmapImage, BitmapField.FOCUSABLE
| BitmapField.HIGHLIGHT_FOCUS);
bitmapImage = Bitmap.getBitmapResource("img/options.png");
tabOptions = new BitmapField(bitmapImage, BitmapField.FOCUSABLE
| BitmapField.HIGHLIGHT_FOCUS);
tabHome.setFocusListener(this);
tabCheckInOut.setFocusListener(this);
tabBarcode.setFocusListener(this);
tabOptions.setFocusListener(this);
Background topBack = BackgroundFactory.createSolidBackground(0x00606A85);
hManager.setBackground(topBack);
hManager.add(tabHome);
hManager.add(tabCheckInOut);
hManager.add(tabBarcode);
hManager.add(tabOptions);
add(hManager);
I'm using HorizontalFieldManager and add 4 BitmapField, then I using BackgroundFactory to create solidBackground, and set it to the manager
but when I run it, the background color does not apply. The gradient example work well. Is there anything that I'm missing? Please help me.
Thanks

Answer 1

After doing some deep web search. Here's the answer guys
HorizontalFieldManager manager = new HorizontalFieldManager()
{
public void paint(Graphics graphics)
{
graphics.setBackgroundColor(0x000000FF);//blue
graphics.clear();
super.paint(graphics);
}
};
UPDATE:
You must only use Web Color
such as 0x006699FF should work
but 0x00606A85 would not work.
if you want a specific color, i recommend you using bitmap.
UPDATE:
Another solution
HorizontalFieldManager manager = new HorizontalFieldManager(Field.USE_ALL_WIDTH);
manager.setBackground(BackgroundFactory.BackgroundFactory
.createSolidBackground(0x00cccccc));