Java Development

[wpbbmg]

Hello,

I'm really new in BlackBerry development and I have a question.

I want to show a VerticalFieldManager at top of the main screen and everytime I scroll the mainscreen the vfm will be shown. I know i could do this with setTitle(), but the Problem is, that after this title is a gap and on the BlackBerry Curve 8300 I see the startscreen in this little gap. This isn't beautiful!

Anyone understand what I mean and can help me? I serched the hole forum and no thread could answer my question!

best regards

Maja

[simon_hain]

the title manager does not only add the field or text but also a small gradient shadow and a separatorfield.

you can make your own title manager like this:

create a verticalfieldmanager (vfm) with USE_ALL_HEIGHT | USE_ALLWIDTH | NO_VERTICAL_SCROLL

add it to the screen

add your title manager to the vfm

create a screen-verticalfieldmanager to manage your normal fields with the VERTICAL_SCROLL style and add it to the vfm.

add all your fields to the screen-vfm. you can scroll it while the title manager stays on top.

a status manager would be similar, but would need some sublayout mojo to be correctly placed.

[wpbbmg]

I tried it! Here's my code:

VerticalFieldManager fieldManagerAll = new VerticalFieldManager(USE_ALL_HEIGHT | USE_ALL_WIDTH | NO_VERTICAL_SCROLL){
			protected void paint(Graphics graphics)
	        {
	            graphics.setBackgroundColor(0x0060AC);
	            graphics.setColor(Color.WHITE);
	            graphics.clear();
	            super.subpaint(graphics);
	        }
			
			protected void subpaint(Graphics graphics){
				int height = Display.getHeight();
				int width = Display.getWidth();
				
				super.sublayout(width, height);
			}
		};

		VerticalFieldManager fieldManagerTop = new VerticalFieldManager(USE_ALL_WIDTH | NO_VERTICAL_SCROLL){
			protected void paint(Graphics graphics)
	        {
	            graphics.setBackgroundColor(0x0060AC);
	            graphics.setColor(Color.WHITE);
	            graphics.clear();
	            super.subpaint(graphics);
	        }
			
			protected void subpaint(Graphics graphics){
				int height = Display.getHeight() / 8;
				int width = Display.getWidth();
				
				super.sublayout(width, height);
			}
		};
		

		VerticalFieldManager fieldManagerMiddle = new VerticalFieldManager(USE_ALL_WIDTH | VERTICAL_SCROLL){
			protected void paint(Graphics graphics){
				graphics.setBackgroundColor(0x0060AC);
				graphics.setColor(Color.WHITE);
	            graphics.clear();
	            super.subpaint(graphics);
			}
			
			protected void subpaint(Graphics graphics){
				int height = (Display.getHeight() / 8) * 7;
				int width = Display.getWidth();
				
				super.sublayout(width, height);
			}
		};

                fieldManagerAll.add(fieldManagerTop);
		fieldManagerAll.add(fieldManagerMiddle);
                add(fieldManagerAll);

But it doesn't act! When I scroll the vfm in the middle the title disappear!

[simon_hain · Accepted solution]

yes, you are right, i checked my own code and forgot something:

use super(NO_VERTICAL_SCROLL) in the screen constructor to disable the scrolling in the screens own manager.

[wpbbmg]

Thanks a lot. Now, the title remain where he is

[simon_hain]

please mark the thread as solved.