Android shape和selector 结合使用实例代码

<?xml version="1.0" encoding="utf-8" ?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
<!-- 默认时的背景图片--> 
<item android:drawable="@drawable/pic1" /> 
 
<!-- 没有焦点时的背景图片 --> 
<item 
 android:state_window_focused="false" 
 android:drawable="@drawable/pic_blue" 
 /> 
 
<!-- 非触摸模式下获得焦点并单击时的背景图片 --> 
<item 
 android:state_focused="true" 
 android:state_pressed="true" 
 android:drawable= "@drawable/pic_red" 
 /> 
 
<!-- 触摸模式下单击时的背景图片--> 
<item 
 android:state_focused="false" 
 android:state_pressed="true" 
 android:drawable="@drawable/pic_pink" 
 /> 
 
<!--选中时的图片背景--> 
<item 
 android:state_selected="true" 
 android:drawable="@drawable/pic_orange" 
 /> 
 
<!--获得焦点时的图片背景--> 
<item 
 android:state_focused="true" 
 android:drawable="@drawable/pic_green" 
 /> 
</selector> 

<?xml version="1.0" encoding="utf-8"?> 
<selector xmlns:android="http://schemas.android.com/apk/res/android"> 
 
 <item android:state_selected="true"> 
 <shape> 
  <gradient android:angle="270" android:endColor="#99BD4C" 
  android:startColor="#A5D245" /> 
  <size android:height="60dp" android:width="320dp" /> 
  <corners android:radius="8dp" /> 
 </shape> 
 </item> 
 <item android:state_pressed="true"> 
 <shape> 
  <gradient android:angle="270" android:endColor="#99BD4C" 
  android:startColor="#A5D245"/> 
  <size android:height="60dp" android:width="320dp" /> 
  <corners android:radius="8dp" /> 
 </shape> 
 </item> 
 <item> 
 <shape> 
  <gradient android:angle="270" android:endColor="#A8C3B0" 
  android:startColor="#C6CFCE" /> 
  <size android:height="60dp" android:width="320dp" /> 
  <corners android:radius="8dp" /> 
 </shape> 
 </item> 
</selector> 
 

<?xml version="1.0" encoding="utf-8"?> 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 android:orientation="horizontal" 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:background="@drawable/selector" 
 >   
 <ImageView 
 android:id="@+id/img" 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content"  
 android:layout_gravity="center_vertical" 
 android:layout_marginLeft="20dp"  
 />    
 <TextView 
  android:text="data" 
  android:id="@+id/title" 
  android:layout_width="fill_parent" 
  android:layout_height="wrap_content" 
  android:gravity="center_vertical" 
  android:layout_marginLeft="20dp" 
  android:layout_marginTop="20dp" 
  android:textSize="14sp"    
  android:textStyle="bold" 
  android:textColor="@color/black"    
  > 
 </TextView>  
 </LinearLayout> 

<?xml version="1.0" encoding="utf-8"?> 
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
 android:orientation="vertical" 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:background="#253853" 
 >     
 <ListView 
  android:id="@+id/list" 
  android:layout_width="match_parent" 
  android:layout_height="match_parent" 
  android:cacheColorHint="#00000000" 
  android:divider="#2A4562" 
  android:dividerHeight="3px" 
  android:listSelector="#264365" 
  android:drawSelectorOnTop="false" 
  > 
 </ListView> 
</LinearLayout> 

<?xml version="1.0" encoding="utf-8"?> 
<resources> 
 <color name="white">#FFFFFFFF</color> 
 <color name="transparency">#00000000</color> 
 <color name="title_bg">#1C86EE</color> 
 <color name="end_color">#A0cfef83</color> 
 <color name="black">#464646</color> 
</resources> 

package com.lingdududu.customlist; 
 
import java.util.ArrayList; 
import java.util.HashMap; 
 
import xb.customlist.R; 
 
import android.R.array; 
import android.app.Activity; 
import android.os.Bundle; 
import android.widget.ArrayAdapter; 
import android.widget.ListView; 
import android.widget.SimpleAdapter; 
 
public class MainActivity extends Activity { 
 ListView list; 
 
 String data[] = new String[]{ 
  "China","UK","USA","Japan","German","Canada","ET","Narotu" 
 }; 
 
 
 /** Called when the activity is first created. */ 
 @Override 
 public void onCreate(Bundle savedInstanceState) { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.main); 
  
  
 list =(ListView) findViewById(R.id.list);  
  
 SimpleAdapter adapter = new SimpleAdapter(this, getData(), R.layout.list_item, 
  new String[]{"title","img"}, new int[]{R.id.title,R.id.img}); 
  
 list.setAdapter(adapter);  
 } 
 
 private ArrayList<HashMap<String, Object>> getData() { 
 ArrayList<HashMap<String, Object>> dlist = new ArrayList<HashMap<String,Object>>(); 
  
 for(int i =0;i<data.length;i++){ 
  HashMap<String, Object>map = new HashMap<String, Object>();  
  map.put("title", data[i]); 
  map.put("img", R.drawable.item_left2); 
  dlist.add(map); 
 } 
 return dlist; 
 } 
}