自定义BaseAdapter[转]

主类：

public classMyActivity extends Activity {

 

   private ListView listView;

   private ImageButtonimageButton;

   private ListViewAdapterlistViewAdapter;

   privateList<Map<String,Object>>listItems;

   private Integer[] imgeIDs ={

  R.drawable.niao,R.drawable.niao,R.drawable.rui,R.drawable.rui,

  R.drawable.ning,R.drawable.ning

   };

   private String[]goodsNames={

   "土豆丝","土豆块","土豆泥","红烧土豆",

   "麻辣土豆","清蒸土豆"

   };

   private String[]goodsDetails={

   "土豆丝：便宜又好吃", "土豆丝：便宜又好吃","土豆丝：便宜又好吃",

   "土豆丝：便宜又好吃", "土豆丝：便宜又好吃","土豆丝：便宜又好吃",

   };

   private int[] money={

   2,3,3,10,8,13

   };

  

   public void onCreate(Bundle savedInstanceState){

      super.onCreate(savedInstanceState);

      setContentView(R.layout.main);

      listView=(ListView)this.findViewById(R.id.listview);

      imageButton = (ImageButton)this.findViewById(R.id.imagebutton);

      imageButton.setOnClickListener(new ClickEvent());

       listItems= getListItems();

      listViewAdapter = newListViewAdapter(this,listItems);

      listView.setAdapter(listViewAdapter);

   }

   privateList<Map<String,Object>>getListItems(){

  List<Map<String,Object>>listItems = newArrayList<Map<String,Object>>();

   for(inti=0;i<goodsNames.length;i++){

   Map<String,Object>map = newHashMap<String,Object>();

   map.put("image",imgeIDs[i]);

   map.put("title",goodsNames[i]);

   map.put("info",money[i]+"元");

   map.put("detail",goodsDetails[i]);

   listItems.add(map);

   }

   return listItems;

   }

   class ClickEvent implementsOnClickListener{

   public void onClick(View v){

   String goodsList="";

   int sun=0;

   for(inti=0;i<listItems.size();i++){

   goodsList +=listViewAdapter.hasChecked(i)?goodsNames[i]+"":"";

   sun+=listViewAdapter.hasChecked(i)?money[i]:0;

  

   }

   newAlertDialog.Builder(MyActivity.this)

   .setTitle("点菜清单")

  .setMessage("你好，你选择的菜：\n"+goodsList+"\n"+"总消费额为："+sun+"元")

  .setPositiveButton("确定",null)

   .show();

  

   }

   }

}

自定义类：

public class ListViewAdapter extendsBaseAdapter{

    private Contextcontext;

    

    privateList<Map<String,Object>>listItems;

    

    private LayoutInflaterlistContainer;

    

    private boolean[]hasChecked;

    public final classListItemView{

    public ImageView image;

    public TextView title;

    public TextView info;

    public CheckBox check;

    public Button detail;

    }

    

    publicListViewAdapter(Contextcontext,List<Map<String,Object>>listItems){

    this.context = context;

    listContainer =LayoutInflater.from(context);

    this.listItems =listItems;

    hasChecked = newboolean[getCount()];

    }

@Override

public int getCount() {

// TODO Auto-generated method stub

return listItems.size();

}

@Override

public Object getItem(int position) {

// TODO Auto-generated method stub

return null;

}

@Override

public long getItemId(int position) {

// TODO Auto-generated method stub

return 0;

}

private void checkedChange(int checkedID){

hasChecked[checkedID] = !hasChecked[checkedID];

}

public boolean hasChecked(int checkedID){

return hasChecked[checkedID];

}

private void showDetailInfo(int clickID){

new AlertDialog.Builder(context)

 .setTitle("本菜详情:"+listItems.get(clickID).get("title"))

 .setMessage(listItems.get(clickID).get("detail").toString())

     .setPositiveButton("确定",null)

     .show();

}

@Override

public View getView(int position, View convertView, ViewGroupparent) {

final int selectID= position;

ListItemView listItemView = null;

if(convertView ==null){

listItemView = new ListItemView();

convertView = listContainer.inflate(R.layout.list_item,null);

//获得控件对象

listItemView.image =(ImageView)convertView.findViewById(R.id.imageitem);

listItemView.title =(TextView)convertView.findViewById(R.id.textview);

listItemView.info =(TextView)convertView.findViewById(R.id.textview1);

listItemView.detail=(Button)convertView.findViewById(R.id.button);

listItemView.check = (CheckBox)convertView.findViewById(R.id.checkItem);

  //设置空间集到convertView

convertView.setTag(listItemView);

}else{

listItemView = (ListItemView) convertView.getTag();

}

//设置文字图片

listItemView.image.setBackgroundResource((Integer)listItems.get(position).get("image"));

listItemView.title.setText((String)listItems.get(position).get("title"));

listItemView.info.setText((String)listItems.get(position).get("info"));

listItemView.detail.setText("本菜介绍");

listItemView.detail.setOnClickListener(new View.OnClickListener(){

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

showDetailInfo(selectID);

}

});

listItemView.check.setOnCheckedChangeListener(newCheckBox.OnCheckedChangeListener(){

public void onCheckedChanged(CompoundButton buttonView,booleanisChecked){

checkedChange(selectID);

}

});

return convertView;

}

}

reprinted from:http://www.oschina.net/code/snippet_203635_7475