自定义BaseAdapter[转]

主类：

public class
MyActivity extends Activity {

 

 
  private ListView listView;

 
  private ImageButton
imageButton;

 
  private ListViewAdapter
listViewAdapter;

 
  private
List<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 = new
ListViewAdapter(this,listItems);

 
     
listView.setAdapter(listViewAdapter);

 
  }

 
  private
List<Map<String,Object>>
getListItems(){

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

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

 
  Map<String,Object>
map = new
HashMap<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 implements
OnClickListener{

 
  public void onClick(View v){

 
  String goodsList="";

 
  int sun=0;

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

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

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

 
 

 
  }

 
  new
AlertDialog.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 extends
BaseAdapter{

    private Context
context;

    

    private
List<Map<String,Object>>
listItems;

    

    private LayoutInflater
listContainer;

    

    private boolean[]
hasChecked;

    public final class
ListItemView{

    public ImageView image;

    public TextView title;

    public TextView info;

    public CheckBox check;

    public Button detail;

    }

    

    public
ListViewAdapter(Context
context,List<Map<String,Object>>
listItems){

    this.context = context;

    listContainer =
LayoutInflater.from(context);

    this.listItems =
listItems;

    hasChecked = new
boolean[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, ViewGroup
parent) {

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(new
CheckBox.OnCheckedChangeListener(){

public void onCheckedChanged(CompoundButton buttonView,boolean
isChecked){

checkedChange(selectID);

}

});

return convertView;

}

}

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