1 <?xml version="1.0" encoding="utf-8"?>
 2 <LinearLayout
 3     xmlns:android="http://schemas.android.com/apk/res/android"
 4     xmlns:tools="http://schemas.android.com/tools"
 5     android:layout_width="match_parent"
 6     android:layout_height="wrap_content"
 7     android:orientation="vertical"
 8     tools:context="com.example.administrator.lineview_sows.MainActivity">
 9 
10     <ListView
11         android:id="@+id/list_item"
12         android:layout_width="match_parent"
13         android:layout_height="wrap_content"></ListView>
14 
15 </LinearLayout>

 1 import android.support.v7.app.AppCompatActivity;
 2 import android.os.Bundle;
 3 import android.widget.ArrayAdapter;
 4 import android.widget.ListView;
 5 
 6 public class MainActivity extends AppCompatActivity {
 7 
 8     @Override
 9     protected void onCreate(Bundle savedInstanceState) {
10         super.onCreate(savedInstanceState);
11         setContentView(R.layout.main);
12 
13         //1:获取ListView对象
14         ListView listView = (ListView) findViewById(R.id.list_item);
15 
16         //2:准备数据源
17         String[] data = {"风马一族","杰克",
18                         "风月","ceo","sows","12345","Android"};
19                         
20 
21         //3:准备适配器Adapter
22         ArrayAdapter<String> adapter = new ArrayAdapter<String>(
23                 this,   //上下方
24                 android.R.layout.simple_expandable_list_item_1, //行布局
25                 data    //数据源
26         );
27 
28         //4:将适配器移Adapter
29         listView.setAdapter(adapter);
30     }
31 }