Java Development

[ZevsVU]

I need make two buttons.

-first button at the left side of the display

-second button at the right side of the display

i try make like this but it dosn't work(

HorizontalFieldManager titleHFM = new HorizontalFieldManager(HorizontalFieldManager.FIELD_HCENTER);
HorizontalFieldManager leftHFM = new HorizontalFieldManager(HorizontalFieldManager.FIELD_LEFT);
leftHFM.add(new ButtonField("Left"));
HorizontalFieldManager rightHFM = new HorizontalFieldManager(HorizontalFieldManager.FIELD_RIGHT);
rightHFM.add(new ButtonField("Right",ButtonField.RIGHT));
titleHFM.add(leftHFM);
titleHFM.add(rightHFM);
add(titleHFM);

[peter_strange]

Welcome to the forums.

I recommend that you use the EvenlySpacedHorizontalFieldmanager or HorizontalButtonFieldSet from here:

http://supportforums.blackberry.com/t5/Java-Development/Implement-advanced-buttons-fields-and-manage...

[lakshman9687 · Accepted solution]

Hi,

You can get this by overridng sublayout of the title manager and no need to take seperate manager for each and every button.

Try like this,

HorizontalFieldManager titleHFM = new HorizontalFieldManager(HorizontalFieldManager.FIELD_HCENTER)
        {
            protected void sublayout(int maxWidth, int maxHeight)
            {
                setPositionChild(getField(0), 0, 0);
                layoutChild(getField(0), getField(0).getPreferredWidth(),getField(0).getPreferredHeight());
                
                setPositionChild(getField(1), Display.getWidth() - getField(1).getPreferredWidth(), 0);
                layoutChild(getField(1), getField(1).getPreferredWidth(),getField(1).getPreferredHeight());
                
                setExtent(maxWidth, maxHeight);
            }
        };

titleHFM.add(new ButtonField("Left"));
titleHFM.addnew ButtonField("Right");

Regards,

Lakshman K

[peter_strange]

I recommend you look at the code supplied in the KB article I previously pointed you at and use that code.  The samples supplied are well written and demonstrate best practice. 

Unfortunately the example given above by lakshman9687 has a number of issues.  For example, the last line

setExtent(maxWidth, maxHeight);

will grab the maximum amount of space for the Manager, in fact it only needs enough height for the two buttons.