package com.example.Galleryphotoshow;

import com.example.Galleryphotoshow.R;

import android.app.Activity;

import android.content.Context;

import android.os.Bundle;

import android.view.View;

import android.view.ViewGroup;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemSelectedListener;

import android.widget.BaseAdapter;

import android.widget.Gallery;

import android.widget.ImageSwitcher;

import android.widget.ImageView;

import android.widget.ViewSwitcher.ViewFactory;

public   class MainActivity extends Activity implements OnItemSelectedListener,ViewFactory

{

    private int[] resIds = new int[]

    { R.drawable.item1, R.drawable.item2, R.drawable.item3, R.drawable.item4,

      R.drawable.item5, R.drawable.item6, R.drawable.item7,

      R.drawable.item8, R.drawable.item9, R.drawable.item10,

      R.drawable.item11, R.drawable.item12, R.drawable.item13,

      R.drawable.item14, R.drawable.item15 };

    private Gallery gallery;

    private ImageSwitcher is;

    public void onCreate(Bundle savedInstanceState) {

       super.onCreate(savedInstanceState);

       setContentView(R.layout.activity_main);

       gallery = (Gallery) findViewById(R.id.gallery1);

       is = (ImageSwitcher) findViewById(R.id.imageSwitcher1);  

       gallery.setAdapter(new ImageAdapter(this));

     //让选定的图片在中心显示

       gallery.setSelection(resIds.length/);

       //为Gallery绑定监听器；

       gallery.setOnItemSelectedListener(new OnItemSelectedListener() {

           public void onItemSelected(AdapterView<?> parent, View view,

                   int position, long id) {

               //当在Gallery中选定一张图片是 ImageSwitcher同步显示同一张

               //position%images.length  为了让图片循环显示

               is.setImageResource(resIds[position%resIds.length]);  

           }

           public void onNothingSelected(AdapterView<?> parent) {  

           }

       });  

       is.setFactory(new ImageFactory(this));  

   }  

   private class ImageAdapter extends BaseAdapter{

       private Context context;

       public ImageAdapter(Context context) {

           this.context = context;

       }

       //可以return images.lenght(),在这里返回Integer.MAX_VALUE

       //是为了使图片循环显示

       public int getCount() {

           return Integer.MAX_VALUE;

       }

       public Object getItem(int position) {

           return null;

       }

       public long getItemId(int position) {

           return ;

       }

       public View getView(int position, View convertView, ViewGroup parent) {

           ImageView iv = new ImageView(context);

           iv.setImageResource(resIds[position%resIds.length]);

           iv.setLayoutParams(new Gallery.LayoutParams(,));

           iv.setAdjustViewBounds(true);

           return iv;

       }

   }  

   private class ImageFactory implements ViewFactory{

       private Context context;

       public ImageFactory(Context context){

           this.context = context;

       }

       public View makeView() {

           ImageView iv = new ImageView(context);

           iv.setLayoutParams(new ImageSwitcher.LayoutParams(,));

           return iv;

       }

   }

@Override

public View makeView() {

    // TODO Auto-generated method stub

    return null;

}

@Override

public void onItemSelected(AdapterView<?> arg0, View arg1, int arg2, long arg3) {

    // TODO Auto-generated method stub

}

@Override

public void onNothingSelected(AdapterView<?> arg0) {

    // TODO Auto-generated method stub

}

}