Java Development

[mico]

Hello, forum

I have a custom VerticalFieldManager with this sublayout method:

protected void sublayout( int maxWidth, int maxHeight ) {            int iNumFields = getFieldCount();            int iYPos = 7;            for (int i = 0; i < iNumFields; i++)            {                Field fField = this.getField(i);                setPositionChild(fField, 10, iYPos);                layoutChild(fField, maxWidth-10, maxHeight);                iYPos = iYPos + fField.getHeight();            }                        setExtent(Display.getWidth(), getPreferredHeight());}

 And of course if I put another Manager based instance into it using 'add' method I get nothing, because there is no manager layout processing here. How to do that?

Thanks 

[simon_hain · Accepted solution]

a manager is a field. but unless the manager has a size, either because fields are added or because you set one, it does not need space and thus does not get layouted.

[mico]

Thanks for you quick reply, Simon.

But what if I have usual VerticalFieldManager testvfm = new VerticalFieldManager();

I just put these into it:

testvfm.add(new LabelField("test"));testvfm.add(new LabelField("tset")); 

 And that works when I add it into the screen but not if I add it into that manager I've described above. 

 How can I set height to this  testvfm so my 'sublayout' method will know that it is not zero height.

[mico]

Also, here is the getPreferredHeight method:

        public int getPreferredHeight()        {            int iNumFields = getFieldCount();            int h = 14;            for (int i = 0; i < iNumFields; i++)            {                Field fField = this.getField(i);                h += fField.getHeight();            }            return h;        }

 And for usual fields like LabelField or TextField this custom class works fine.

[mico]

Sorry, that mentioned sublayout method works fine for managers.