Android入门- listView的实现 SimpleAdapter

public class MainActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String[]data={"的萨芬的","阿萨德发送","阿瓦尔维权","违法打算","怀仁堂噶","七4人","圣达菲尔","阿凡达岁的","犹太人","阿尔","温柔的"," 抢 ","高峰时段低点",};
int[]imges={R.drawable.image1,R.drawable.image2,R.drawable.image3,R.drawable.image4,R.drawable.image5,R.drawable.image6,R.drawable.image7,R.drawable.image8,R.drawable.image9,R.drawable.image10,R.drawable.image11,R.drawable.image12,R.drawable.image13};
ArrayList<HashMap<String,Object>> dataList=new ArrayList<HashMap<String,Object>>();
for(int i=0;i<data.length;i++){
HashMap<String,Object> map=new HashMap<String,Object>();
map.put("image",imges[i]);
map.put("text",data[i]);
dataList.add(map);
}
ListView simpleList=(ListView)findViewById(R.id.simpeList);
SimpleAdapter simpleadapter=new SimpleAdapter(MainActivity.this,dataList,R.layout.listitem,new String[]{"image","text"},new int[]{R.id.item_img,R.id.item_tv});
simpleList.setAdapter(simpleadapter);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >

<ListView
android:id="@+id/simpeList"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal" >

<ImageView
android:id="@+id/item_img"
android:layout_width="75dp"
android:layout_height="75dp"
android:src="@drawable/ic_launcher" />

<TextView
android:id="@+id/item_tv"
android:layout_width="match_parent"
android:layout_height="75dp"
android:layout_marginLeft="5dp"
android:layout_weight="1"
android:gravity="center_vertical"
android:text="kjdflka"
android:textSize="20sp" />
</LinearLayout>