package gdp.switcherview2;

 import java.util.ArrayList;

 import java.util.HashMap;

 import java.util.List;

 import java.util.Map;

 import android.app.Activity;

 import android.os.Bundle;

 import android.view.Menu;

 import android.view.View;

 import android.view.ViewGroup.LayoutParams;

 import android.widget.AdapterView;

 import android.widget.AdapterView.OnItemClickListener;

 import android.widget.AdapterView.OnItemSelectedListener;

 import android.widget.GridView;

 import android.widget.ImageSwitcher;

 import android.widget.ImageView;

 import android.widget.SimpleAdapter;

 import android.widget.Toast;

 import android.widget.ViewSwitcher.ViewFactory;

 public class MainActivity extends Activity {

     //声明一个数组，用来装载图片资源

     int[] imageIds = new int[]{R.drawable.baiyang, R.drawable.chunv, R.drawable.jinniu, R.drawable.juxie,

                             R.drawable.mojie, R.drawable.sheshou, R.drawable.shizi, R.drawable.shuangyu,

                             R.drawable.shuangzi, R.drawable.shuiping, R.drawable.tiancheng, R.drawable.tianxie};

     //声明ImageSwitcher对象

     private ImageSwitcher switcher ;

     @Override

     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.main);

         //创建一个List对象，其元素Map

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

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

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

             listItem.put("image", imageIds[i]);

             listItems.add(listItem);

         }

         //获取显示图片的ImageSwitcher

         switcher = (ImageSwitcher)findViewById(R.id.switcher);

         //为imageSwicher设置图片切换的动画效果

         switcher.setFactory(new ViewFactory() {

             @Override

             public View makeView() {

                 // 创建imageView对象

                 ImageView imageView = new ImageView(MainActivity.this);

                 imageView.setScaleType(ImageView.ScaleType.FIT_CENTER);

                 imageView.setLayoutParams(new ImageSwitcher.LayoutParams(LayoutParams.WRAP_CONTENT,

                                         LayoutParams.WRAP_CONTENT));

                 //返回ImageView对象

                 return imageView;

             }

         });

         //创建Adapter

         SimpleAdapter simpleAdapter = new SimpleAdapter(this, listItems, R.layout.cell, new String[]{"image"}, new int[]{R.id.image1});

         GridView grid = (GridView)findViewById(R.id.grid01);

         grid.setAdapter(simpleAdapter);

         //添加列表项被点击的监听器

         grid.setOnItemClickListener(new ItemClick());

         //添加列表项被选中的监听器

         grid.setOnItemSelectedListener(new ItemSelect());

     }

     class ItemClick implements OnItemClickListener{

         @Override

         public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,

                 long arg3) {

             // TODO Auto-generated method stub

             switcher.setImageResource(imageIds[arg2]);

         }

     }

     class ItemSelect implements OnItemSelectedListener{

         @Override

         public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2,

                 long arg3) {

             // TODO Auto-generated method stub

             switcher.setImageResource(imageIds[arg2]);

         }

         @Override

         public void onNothingSelected(AdapterView<?> arg0) {

             // TODO Auto-generated method stub

             Toast.makeText(MainActivity.this, "Nothing Selected" , Toast.LENGTH_LONG).show();

         }

     }

     @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;

     }

 }

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

     android:layout_width="fill_parent"

     android:layout_height="fill_parent"

     android:orientation="vertical"

     android:gravity="center_horizontal" >

     <!-- 定义一个GridView组件 -->

     <GridView

         android:id="@+id/grid01"

         android:layout_width="fill_parent"

         android:layout_height="wrap_content"

         android:horizontalSpacing="2dp"

         android:verticalSpacing="2dp"

         android:numColumns="4"

         android:gravity="center"

         />

     <!-- 定义一个ImageSwitcher组件 -->

     <ImageSwitcher

         android:id="@+id/switcher"

         android:layout_width="300dp"

         android:layout_height="300dp"

         android:layout_gravity="center_horizontal"

         android:inAnimation="@android:anim/fade_in"

         android:outAnimation="@android:anim/fade_out"

         />

 </LinearLayout>

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

     android:layout_width="fill_parent"

     android:layout_height="fill_parent"

     android:orientation="vertical" >

     <ImageView

         android:id="@+id/image1"

         android:layout_width="fill_parent"

         android:layout_height="fill_parent"

         android:scaleType="fitXY"

         />

 </LinearLayout>