多种形式的ListView案例

public class MainActivity extends Activity {
     private ListView lv;
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  lv = (ListView) findViewById(R.id.lv);
  MyAdapter adapter = new MyAdapter();
  adapter.addSecondItem("无线和网络");
  adapter.addNormalItem("无线", R.drawable.ic_launcher);
  adapter.addNormalItem("网络", R.drawable.ic_launcher);
  adapter.addSecondItem("设备");
  adapter.addNormalItem("声音", R.drawable.ic_launcher);
  adapter.addNormalItem("存储", R.drawable.ic_launcher);
  adapter.addNormalItem("haha", R.drawable.ic_launcher);
  lv.setAdapter(adapter);
 }
  class  MyAdapter extends BaseAdapter{
    private List<Map<String, Object>> list = new ArrayList<Map<String,Object>>();
    private Set<Integer> set = new TreeSet<Integer>();
    private final int NORMAL_TYPE = 0;
    private final int SECOND_TYPE = 1;
    public void addNormalItem(String content,int imgId){
     Map<String, Object> map = new TreeMap<String, Object>();
     map.put("title", content);
     map.put("logo", imgId);
     list.add(map);
    }
    @Override
    public int getViewTypeCount() {
     return 2;
    }
    @Override
    public int getItemViewType(int position) {
     int type = set.contains(position)?SECOND_TYPE:NORMAL_TYPE;
     return type;
    }
    public void addSecondItem(String content){
     Map<String, Object> map = new TreeMap<String, Object>();
     map.put("title", content);
     map.put("logo", R.drawable.ic_launcher);
     list.add(map);
     set.add(list.size()-1);
    }
   
 @Override
 public int getCount() {
  return list.size();
 }

 @Override
 public Object getItem(int position) {
  return list.get(position);
 }

 @Override
 public long getItemId(int position) {
  return position;
 }

 @Override
 public View getView(int position, View convertView, ViewGroup parent) {
  ViewHolder vHolder = null;
  if(convertView==null){
   vHolder = new ViewHolder();
   int type = getItemViewType(position);
   switch (type) {
   case NORMAL_TYPE:
    convertView = getLayoutInflater().inflate(R.layout.normal_item, null);
    vHolder.iv_logo = (ImageView) convertView.findViewById(R.id.iv_normal);
    vHolder.tv_title = (TextView) convertView.findViewById(R.id.tv_normal);
    break;
   case SECOND_TYPE:
    convertView = getLayoutInflater().inflate(R.layout.second_item, null);
    vHolder.tv_title = (TextView) convertView.findViewById(R.id.tv_second);
    break;
   }
   convertView.setTag(vHolder);
  }else{
   vHolder = (ViewHolder) convertView.getTag();
  }
  Map<String, Object> map = list.get(position);
  vHolder.tv_title.setText(map.get("title").toString());
  if(!set.contains(position)){
   vHolder.iv_logo.setImageResource(Integer.parseInt(map.get("logo").toString()));
  }
  return convertView;
 }
  }
  class ViewHolder{
   TextView tv_title;
   ImageView iv_logo;
  }
}