1:FragmentHack4.java

/** * Created by y on 15-1-2. */public class FragmentHack4 extends Fragment{    View view;    List
     
       names;    ListView lvNames;    NameSectionAdapter adapter;    TextView tvHeader;    int topVisiblePos;    @Override    public void onAttach(Activity activity) {        super.onAttach(activity);        names = new ArrayList
      
       ();        //测试数据        String []t={"A","B","C","D","E","F"};        for(int i=0;i
      
     

2:NameSectionAdapter.java

/** * Created by y on 15-1-2. */public class NameSectionAdapter extends ArrayAdapter
     
      {    private int resourceId;    public NameSectionAdapter(Context context, int resourceId, List
      
        objects){        super(context,resourceId,objects);        this.resourceId = resourceId;    }    @Override    public View getView(int position, View convertView, ViewGroup parent) {        String name = getItem(position);        ViewHolder holder;        if(convertView==null){            convertView = LayoutInflater.from(getContext()).inflate(resourceId,null);            holder = new ViewHolder();            holder.tvHeader = (TextView)convertView.findViewById(R.id.tvHeader);            holder.tvName = (TextView)convertView.findViewById(R.id.tvName);           convertView.setTag(holder);        }else{            holder = (ViewHolder)convertView.getTag();        }        holder.tvName.setText(name);        //如果是第一项或者首字母发生了变化,则显示分组栏,否则隐藏        if(position==0 || getItem(position-1).charAt(0)!=name.charAt(0)){            holder.tvHeader.setVisibility(View.VISIBLE);            holder.tvHeader.setText(name.substring(0,1));        }else{            holder.tvHeader.setVisibility(View.GONE);        }        return convertView;    }    static class ViewHolder{        public TextView tvHeader;        public TextView tvName;    }}
      
     

3:布局文件:

(1)fragment_hack4.xml

(2)list_header.xml

(3)list_name_item.xml

4:运行结果