List 怎么让指定行选中状态 或者 设置 某行的颜色(在线等待)!!!!

[热烈的红颜]

List 怎么让指定行选中状态 或者 设置 某行的颜色(在线等待)!!!!

[zwgs1985]

实现ListCellRenderer，或者从DefaultListCellRenderer继承，在getListCellRendererComponent方法中可以设置某行的颜色
下面是DefaultListCellRenderer的源代码，修改一下就行，可以设置选中的颜色，也可以设置有焦点的border：

public Component getListCellRendererComponent(
        JList list,
	Object value,
        int index,
        boolean isSelected,
        boolean cellHasFocus)
    {
        setComponentOrientation(list.getComponentOrientation());

        Color bg = null;
        Color fg = null;

        JList.DropLocation dropLocation = list.getDropLocation();
        if (dropLocation != null
                && !dropLocation.isInsert()
                && dropLocation.getIndex() == index) {

            bg = UIManager.getColor("List.dropCellBackground");
            fg = UIManager.getColor("List.dropCellForeground");

            isSelected = true;
        }

	if (isSelected) {
            setBackground(bg == null ? list.getSelectionBackground() : bg);
	    setForeground(fg == null ? list.getSelectionForeground() : fg);
	}
	else {
	    setBackground(list.getBackground());
	    setForeground(list.getForeground());
	}

	if (value instanceof Icon) {
	    setIcon((Icon)value);
	    setText("");
	}
	else {
	    setIcon(null);
	    setText((value == null) ? "" : value.toString());
	}

	setEnabled(list.isEnabled());
	setFont(list.getFont());

        Border border = null;
        if (cellHasFocus) {
            if (isSelected) {
                border = UIManager.getBorder("List.focusSelectedCellHighlightBorder");
            }
            if (border == null) {
                border = UIManager.getBorder("List.focusCellHighlightBorder");
            }
        } else {
            border = getNoFocusBorder();
        }
	setBorder(border);

	return this;
    }

[热烈的红颜]

哦 谢谢了 我搞一下