LancherTest,使用ViewSwitcher

package org.hjw.lanchertest;

import java.util.ArrayList;

import android.os.Bundle;
import android.app.Activity;
import android.graphics.drawable.Drawable;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.ViewSwitcher;
import android.widget.ViewSwitcher.ViewFactory;

public class MainActivity extends Activity {
    
    public static final int NUMBER_PER_SCREEN=16;
    public static class DataItem{//存放应用的图标和名字
        public String dataname;
        public Drawable drawable;
    }
    private ArrayList<DataItem> items=new ArrayList<DataItem>();
    private int screenNo=-1;//当前屏
    private int screenCount;//屏数
    ViewSwitcher switcher;
    LayoutInflater inflater;
    

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        inflater=LayoutInflater.from(MainActivity.this);
        
        for(int i=0;i<40;i++){
            String label=""+i;
            Drawable drawable=getResources().getDrawable(R.drawable.ic_launcher);
            DataItem item=new DataItem();
            item.dataname=label;
            item.drawable=drawable;
            items.add(item);
        }
        
        screenCount=items.size()%NUMBER_PER_SCREEN==0?
                items.size()/NUMBER_PER_SCREEN:
                    items.size()/NUMBER_PER_SCREEN+1;
        switcher=(ViewSwitcher)findViewById(R.id.viewSwitcher);
        switcher.setFactory(new ViewFactory() {
            
            public View makeView() {
                // TODO Auto-generated method stub
            return inflater.inflate(R.layout.slidelistview, null);
            }
        });
        next(null);
    }
    
    public void next(View v){
        if(screenNo<screenCount-1){
            screenNo++;
            switcher.setInAnimation(this,R.anim.slide_in_right);
            switcher.setOutAnimation(this,R.anim.slide_out_left);
            
            ((GridView) switcher.getNextView()).setAdapter(adpter);
            switcher.showNext();
        }
    }
    
    public void prev(View v){
        if(screenNo>0){
            screenNo--;
            switcher.setInAnimation(this,R.anim.slide_out_left);
            switcher.setOutAnimation(this,R.anim.slide_in_right);
            
            ((GridView) switcher.getNextView()).setAdapter(adpter);
            switcher.showPrevious();
        }
    }
    
    private BaseAdapter adpter=new BaseAdapter() {
        
        @Override
        public View getView(int arg0, View arg1, ViewGroup arg2) {
            View view=arg1;
            if(arg1==null){
                view=inflater.inflate(R.layout.labelicon, null);
            }
            
            ImageView imageView=(ImageView)
                    view.findViewById(R.id.imageview);
            imageView.setImageDrawable(getItem(arg0).drawable);
            
            TextView textView=(TextView)view.findViewById(R.id.textview);
            textView.setText(getItem(arg0).dataname);
            return view;
            
        }
        
        @Override
        public long getItemId(int arg0) {
            // TODO Auto-generated method stub
            return arg0;
        }
        
        @Override
        public DataItem getItem(int arg0) {
            // TODO Auto-generated method stub
            return items.get((screenNo)*NUMBER_PER_SCREEN+arg0);
        }
        
        @Override
        public int getCount() {
            if(screenNo==screenCount-1&&items.size()%NUMBER_PER_SCREEN!=0){
                return items.size()%NUMBER_PER_SCREEN;
            }
            return NUMBER_PER_SCREEN;
        }
    };

    @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;
    }

}

ps:1.最关键的代码无非是setFactory那一段，加载GridView组件

     2.BaseAdapter的使用，负责为每屏为显示GridView提供列表项

　　3.动画资源文件的使用，下面是往右拖的动画资源文件

<set xmlns:android="http://schemas.android.com/apk/res/android">
    <!-- 设置从右边拖进来的动画
    android:duration指定动画持续时间  -->
    <translate
        android:fromXDelta="100%p"
        android:toXDelta="0"
        android:duration="@android:integer/config_mediumAnimTime" />
</set>