How can I vertically center a title on Blackberry?

Question

I'm trying to make a design like at the picture:

as you can see, at the top bar of the screen there is a title at the center. I can set it to horizontal center, but how to set it to vertical center?

I allready tryed:

• override RichTextField to make it custom sized. it works for widht, but not height.

• override horizontal/vertical field manager to make it with custon height with vertical centrizing, but it didn't work:

      VerticalFieldManager vfm = new VerticalFieldManager();
      HorizontalFieldManager hfm = new HorizontalFieldManager(Field.FIELD_VCENTER){
          protected void sublayout( int maxWidth, int maxHeight )
          {
              super.sublayout( Display.getWidth(), 50);
          }
      };
      LabelWithCustomSize title = new LabelWithCustomSize("ENTERTAINMENT",Field.NON_FOCUSABLE,Display.getWidth(),50,30,2);
      hfm.add(title);
      vfm.add(hfm);
  

• add an empty RichTextField with small text size, but fiels allways has same height.

How to set text or any other field at vertical center?

Answer 1

The issue that you will need to solve is "How does a Manager centre vertically and Horizontally any field that is added to it". Trying to solve this problem for N number of fields added to Manager might be a bit involved but just for one field, it must be quite easy. I suggest you try this :

 VerticalFieldManager vfm = new VerticalFieldManager(){
        public void sublayout( int maxWidth, int maxHeight )
        {
            int margin = 0;
            int lheight = 0;
            Field f = getField( 0 );
            margin = f.getMarginBottom()+f.getMarginTop();
            layoutChild(f, maxWidth-margin, maxHeight);
            int w = f.getWidth();
            int h = f.getHeight();
            lheight = h+margin;
            int x = (maxWidth - w)/2;
            int y = (maxHeight -h)/2;
            setPositionChild( f, x, y);
            setExtent( maxWidth, lheight);
        }
    };
    vfm.add( field);