Codename One ComboBox如何突出显示已选择的值

ComboBox<String> comboBox = new ComboBox<>();
comboBox.addItem("Option 1");
comboBox.addItem("Option 2");
comboBox.addItem("Option 3");

// 设置选中项的索引
comboBox.setSelectedIndex(1);

// 设置选中项的样式，包括背景色
comboBox.setSelectedStyle(comboBox.getUnselectedStyle().bgColor(0x3366CC));

ComboBox<String> comboBox = new ComboBox<>();
comboBox.addItem("Option 1");
comboBox.addItem("Option 2");
comboBox.addItem("Option 3");

// 设置自定义渲染器
comboBox.setRenderer(new ListCellRenderer<String>() {
    @Override
    public Component getListCellRendererComponent(List list, String value, int index, boolean isSelected) {
        Label label = new Label(value);

        // 根据选中项的值设置样式
        if (isSelected) {
            label.getAllStyles().setBgColor(0x3366CC);
            label.getAllStyles().setFgColor(0xFFFFFF);
        } else {
            label.getAllStyles().setBgColor(0xFFFFFF);
            label.getAllStyles().setFgColor(0x000000);
        }

        return label;
    }
});

// 设置选中项的索引
comboBox.setSelectedIndex(1);