List<String> data = new ArrayList<String>();
data.add("测试数据1");
data.add("测试数据2");
data.add("测试数据3");
data.add("测试数据4");
return data;
}
}
上面代码使用了ArrayAdapter(Context context, int textViewResourceId, List<T> objects)来装配数据，要
装配这些数据就需要一个连接ListView视图对象和数组数据的适配器来两者的适配工作，ArrayAdapter的构
造需要三个参数，依次为this,布局文件（注意这里的布局文件描述的是列表的每一行的布局，android.R.l
ayout.simple_list_item_1是系统定义好的布局文件只显示一行文字，数据源(一个List集合)。同时用setAd
apter（）完成适配的最后工作。运行后的现实结构如下图：
SimpleCursorAdapter
sdk的解释是这样的：An easy adapter to map columns from a cursor to TextViews or ImageViews de
fined in an XML file. You can specify which columns you want, which views you want to display the colum
ns, and the XML file that defines the appearance of these views。简单的说就是方便把从游标得到的数据
进行列表显示，并可以把指定的列映射到对应的TextView中。
/**
* @author allin
*
*/
public class MyListView2 extends Activity {
private ListView listView;
//private List<String> data = new ArrayList<String>();
@Override
public void onCreate(Bundle savedInstanceState){
super.onCreate(savedInstanceState);
ListAdapter listAdapter = new SimpleCursorAdapter(this, android.R.layout.simple_expandable_list_item_1,
cursor,
new String[]{People.NAME},
new int[]{android.R.id.text1});
/**
* @author allin
*
*/
public class MyListView3 extends ListActivity {
// private List<String> data = new ArrayList<String>();
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
SimpleAdapter adapter = new SimpleAdapter(this,getData(),R.layout.vlist,
new String[]{"title","info","img"},
new int[]{R.id.title,R.id.info,R.id.img});
setListAdapter(adapter);
}
private List<Map<String, Object>> getData() {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
/**
* listview中点击按键弹出对话框
*/
public void showInfo(){
new AlertDialog.Builder(this)
.setTitle("我的listview")
.setMessage("介绍...")
.setPositiveButton("确定", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
})
.show();
}
public final class ViewHolder{
public ImageView img;
public TextView title;
public TextView info;
public Button viewBtn;
}
public class MyAdapter extends BaseAdapter{
private LayoutInflater mInflater;
public MyAdapter(Context context){
this.mInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return mData.size();
}
@Override
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return null;
}
@Override
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return 0;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
rientation="horizontal" android:layout_width="fill_parent"