listView添加多个不同的adapter

有时候我们想在listView上分类，或者呢有时候一行显示两列内容，有时候需要三列内容，那怎么实现呢，这里呢就要使用
Java代码
class Section {
        String caption;
        Adapter adapter;

        Section(String caption, Adapter adapter) {
            this.caption=caption;
            this.adapter=adapter;
        }
    }

自定义一个类，这个类呢包含多个adapter就可以了，想用那种就用那种。
Java代码
abstract public class SectionedAdapter extends BaseAdapter {
    abstract protected View getHeaderView(String caption,int index,View convertView,ViewGroup parent);

    private List<Section> sections=new ArrayList<Section>();
    private static int TYPE_SECTION_HEADER=0;

    public SectionedAdapter() {
        super();
    }

    public void addSection(String caption, Adapter adapter) {
        sections.add(new Section(caption, adapter));
    }

    public Object getItem(int position) {
        for (Section section : this.sections) {
            if (position==0) {
                return(section);
            }

            int size=section.adapter.getCount()+1;

            if (position<size) {
                return(section.adapter.getItem(position-1));
            }

            position-=size;
        }

        return(null);
    }

    public int getCount() {
        int total=0;

        for (Section section : this.sections) {
            total+=section.adapter.getCount()+1; // add one for header
        }

        return(total);
    }

    public int getViewTypeCount() {
        int total=1;    // one for the header, plus those from sections

        for (Section section : this.sections) {
            total+=section.adapter.getViewTypeCount();
        }

        return(total);
    }

    public int getItemViewType(int position) {
        int typeOffset=TYPE_SECTION_HEADER+1;   // start counting from here

        for (Section section : this.sections) {
            if (position==0) {
                return(TYPE_SECTION_HEADER);
            }

            int size=section.adapter.getCount()+1;

            if (position<size) {
                return(typeOffset+section.adapter.getItemViewType(position-1));
            }

            position-=size;
            typeOffset+=section.adapter.getViewTypeCount();
        }

        return(-1);
    }

    public boolean areAllItemsSelectable() {
        return(false);
    }

    public boolean isEnabled(int position) {
        return(getItemViewType(position)!=TYPE_SECTION_HEADER);
    }

    @Override
    public View getView(int position, View convertView,
                      &nb

补充：移动开发 , Android ,