<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="fill_parent"

android:layout_height="fill_parent"

android:orientation="vertical" >

<ListView

android:id="@+id/listView1"

android:layout_width="match_parent"

android:layout_height="wrap_content" >

</ListView>

</LinearLayout>

2 数据适配器ListAdapter及实现类

android.widget.ListAdapter

Known Indirect Subclasses ArrayAdapter<T>, BaseAdapter, CursorAdapter, HeaderViewListAdapter, ResourceCursorAdapter, SimpleAdapter, SimpleCursorAdapter, WrapperListAdapter

Class Overview

---

Extended Adapter that is the bridge between a ListView and the data that backs the list. Frequently that data comes from a Cursor, but that is not required. The ListView can display any data provided that it is wrapped in a ListAdapter.

创建数据适配器：

//getView,getCount方法需要覆写，才会显示List记录

BaseAdapter adapter = new BaseAdapter() {

//List中所存放的View,如果是只是一个TextView(简单数据),则返回的是TextView.

TextView tv = new TextView(AdapterActivity.this);

tv.setPadding(8, 8, 8, 8);

tv.setTextSize(20);

tv.setText(arrs[position]);

//如果是一个自定义的复杂的布局，如微博的列表的布局，一行中包含有图片，摆放不同位置的TextView,返回的就是一个layout

@Override

public View getView(int position, View convertView, ViewGroup parent) {

// TODO Auto-generated method stub

// 1、获得行布局 用LayoutInflater

// 2、更新行布局

return null;

}

//显示List条数

@Override

public int getCount() {

// TODO Auto-generated method stub

return 0;

}

@Override

public long getItemId(int position) {

// TODO Auto-generated method stub

return 0;

}

@Override

public Object getItem(int position) {

// TODO Auto-generated method stub

return null;

}

};

//只有一个TextView的行的布局，listitem.xml (如果是复杂的布局，用布局加控件)

<?xml version="1.0" encoding="utf-8"?>

<TextView xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent" >

</TextView>

public class ArrayAdapterActivity extends Activity {

ListView lv ;

@Override

protected void onCreate(Bundle savedInstanceState) {

// TODO Auto-generated method stub

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

lv = (ListView) findViewById(R.id.listView1);

String[] arr ={"aaa","bbb","ccc","ddd","eee"};

ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, arr);

lv.setAdapter(arrayAdapter);

}

}

simple_list_item_1是android系统提供的一个layout,每个列表项都是一个普通的TextView

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

android:layout_width="match_parent"

android:layout_height="match_parent" >

<ImageView

android:id="@+id/imageView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:layout_alignParentTop="true"

android:layout_marginLeft="20dp"

android:layout_marginTop="20dp"

android:src="@drawable/libai" />

<TextView

android:id="@+id/textView2"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_above="@+id/textView1"

android:layout_marginLeft="16dp"

android:layout_toRightOf="@+id/textView1"

android:textSize="20dp"/>

<TextView

android:id="@+id/textView1"

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_alignParentLeft="true"

android:paddingLeft="20dp"

android:layout_below="@+id/imageView1"

android:text="TextView" />

</RelativeLayout>

public class MainActivity extends Activity {

Public Constructors

public class MainActivity extends Activity {

private String[] names = new String[]{"虎头","李白","弄玉","清照"};

private int[] imagesIds = new int[]{R.drawable.tiger,R.drawable.libai,R.drawable.nongyu,R.drawable.qingzhao};

private String[] contents = new String[]{

"很可爱的小男孩的名字",

"唐代著名诗人，有一首诗，叫举头望明月，啊，故乡。。。。",

"一个小小女孩",

"寻寻觅觅，冷冷清清，凄凄惨惨戚戚。"

};

ListView lv ;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

lv = (ListView)findViewById(R.id.listView1);

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

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

Map<String,Object> listItem = new HashMap<String,Object>();

listItem.put("header", imagesIds[i]);

listItem.put("personName", names[i]);

listItem.put("content",contents[i]);

listItems.add(listItem);

}

SimpleAdapter adapter = new SimpleAdapter(this, listItems, R.layout.custom_list,

new String[]{"personName","header","content"},

new int[]{R.id.name,R.id.header,R.id.content});

lv.setAdapter(adapter);

}

}

public abstract void onItemClick (AdapterView<?> parent, View view, int position, long id)

public abstract boolean onItemLongClick (AdapterView<?> parent, View view, int position, long id)