学步园

Xml代码  

1. <?xml version="1.0" encoding="utf-8"?>  
2. <shape xmlns:android="http://schemas.android.com/apk/res/android"    
3.        android:shape="rectangle"  
4.        >  
5.        <gradient     
6.        android:startColor="@android:color/white"     
7.        android:endColor="#FFCCCCCC"     
8.        android:angle="180"    
9.        />  
10.        <stroke android:width="0px"    
11.        android:color="@android:color/white"    
12.        />    
13.        <solid android:color="@android:color/white"    
14.        />    
15.        <corners    
16.        android:bottomRightRadius="20px"    
17.        android:bottomLeftRadius="20px"    
18.        android:topLeftRadius="20px"    
19.        android:topRightRadius="20px"    
20.        />  
21. </shape>   

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" 
       android:shape="rectangle"
       >
       <gradient  
       android:startColor="@android:color/white"  
       android:endColor="#FFCCCCCC"  
       android:angle="180" 
       />
       <stroke android:width="0px" 
       android:color="@android:color/white" 
       /> 
       <solid android:color="@android:color/white" 
       /> 
       <corners 
       android:bottomRightRadius="20px" 
       android:bottomLeftRadius="20px" 
       android:topLeftRadius="20px" 
       android:topRightRadius="20px" 
       />
</shape> 

然后在ListView中引用它，注意android:listSelector为了去掉选中效果：

Xml代码  

1. <ListView android:id="@+id/list"    
2.         android:layout_width="fill_parent"    
3.         android:layout_height="wrap_content"  
4.         android:layout_margin="20.0dip"  
5.         android:cacheColorHint="@null"    
6.                 android:listSelector="@drawable/shape_bg_listview"  
7.         android:background="@drawable/shape_bg_listview"  
8.         />  

<ListView android:id="@+id/list" 
		android:layout_width="fill_parent" 
		android:layout_height="wrap_content"
		android:layout_margin="20.0dip"
		android:cacheColorHint="@null" 
                android:listSelector="@drawable/shape_bg_listview"
		android:background="@drawable/shape_bg_listview"
		/>

代码：

Java代码  

1. public class App extends Activity {   
2.     private ListView mListView = null;   
3.        
4.     /** Called when the activity is first created. */  
5.     @Override  
6.     public void onCreate(Bundle savedInstanceState) {   
7.         super.onCreate(savedInstanceState);   
8.         setContentView(R.layout.main);   
9.         ArrayList<String> list =new ArrayList<String>();   
10.         list.add("1");   
11.         list.add("2");   
12.         list.add("3");   
13.         mListView =  (ListView)findViewById(R.id.list);   
14.         mListView.setAdapter(new AppAdapter(this,list));   
15.     }   
16.        
17.     class AppAdapter extends BaseAdapter{   
18.   
19.         Context context;   
20.         ArrayList<String> list;   
21.         AppAdapter(Context context,ArrayList<String> list){   
22.             this.context=context;   
23.             this.list=list;   
24.         }   
25.         @Override  
26.         public int getCount() {   
27.             // TODO Auto-generated method stub   
28.             return list.size();   
29.         }   
30.   
31.         @Override  
32.         public Object getItem(int position) {   
33.             // TODO Auto-generated method stub   
34.             return list.get(position);   
35.         }   
36.   
37.         @Override  
38.         public long getItemId(int position) {   
39.             // TODO Auto-generated method stub   
40.             return position;   
41.         }   
42.   
43.         @Override  
44.         public View getView(int position, View convertView, ViewGroup parent) {   
45.             // TODO Auto-generated method stub   
46.             TextView tv;   
47.             if(convertView==null){   
48.                 convertView=LayoutInflater.from(context).inflate(R.layout.simple_item_2, null);   
49.             }   
50.             tv=(TextView)convertView.findViewById(R.id.name);   
51.             tv.setText(list.get(position));   
52.             return convertView;   
53.         }   
54.            
55.     }   
56. }  

public class App extends Activity {
	private ListView mListView = null;
	
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        ArrayList<String> list =new ArrayList<String>();
        list.add("1");
        list.add("2");
        list.add("3");
        mListView =  (ListView)findViewById(R.id.list);
        mListView.setAdapter(new AppAdapter(this,list));
    }
    
    class AppAdapter extends BaseAdapter{

    	Context context;
    	ArrayList<String> list;
    	AppAdapter(Context context,ArrayList<String> list){
    		this.context=context;
    		this.list=list;
    	}
		@Override
		public int getCount() {
			// TODO Auto-generated method stub
			return list.size();
		}

		@Override
		public Object getItem(int position) {
			// TODO Auto-generated method stub
			return list.get(position);
		}

		@Override
		public long getItemId(int position) {
			// TODO Auto-generated method stub
			return position;
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {
			// TODO Auto-generated method stub
			TextView tv;
			if(convertView==null){
				convertView=LayoutInflater.from(context).inflate(R.layout.simple_item_2, null);
			}
			tv=(TextView)convertView.findViewById(R.id.name);
			tv.setText(list.get(position));
			return convertView;
		}
    	
    }
}

simple_item_2.xml定义如下：

Xml代码  

1. <?xml version="1.0" encoding="utf-8"?>  
2. <RelativeLayout  
3.     xmlns:android="http://schemas.android.com/apk/res/android"  
4.     android:layout_width="fill_parent"  
5.     android:layout_height="wrap_content"  
6.     >  
7.     <TextView  
8.         android:id="@+id/name"  
9.         android:textSize="17.0sp"  
10.         android:textColor="@android:color/black"  
11.         android:layout_width="wrap_content"  
12.         android:layout_height="wrap_content"  
13.         android:layout_marginLeft="20.0dip"  
14.         android:layout_alignParentLeft="true"  
15.         android:layout_centerVertical="true"  
16.         >  
17.     </TextView>  
18.     <ImageView  
19.         android:layout_width="wrap_content"  
20.         android:layout_height="wrap_content"  
21.         android:layout_marginRight="20.0dip"  
22.         android:src="@drawable/arrow"  
23.         android:layout_alignParentRight="true"  
24.         android:layout_centerVertical="true"  
25.         >  
26.     </ImageView>  
27. </RelativeLayout>  

from:http://gundumw100.iteye.com/blog/1085930