Fragment界面切換--適配器

MyAdapter.java:

package com.example.fragment;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

public class MyAdapter extends BaseAdapter {
  private LayoutInflater mInflater = null;  
  String[] s1 ;
  String[] s2 ;

  int[] i;
     public MyAdapter(Context context,String[] s1,String[] s2,int[] i){ 
         super(); 
         this.s1=s1;
         this.s2=s2;
         this.i=i;
         mInflater = (LayoutInflater) context 
         .getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
     } 

 @Override
 public int getCount() {
  // TODO 自動生成的方法存根
  return s1.length;
 }

 @Override
 public Object getItem(int arg0) {
  // TODO 自動生成的方法存根
  return arg0;
 }

 @Override
 public long getItemId(int arg0) {
  // TODO 自動生成的方法存根
  return arg0;
 }

 @Override
 public View getView(int arg0, View arg1, ViewGroup arg2) {
  // TODO 自動生成的方法存根
     HolderView holder=null;
     if(arg1==null||arg1.getTag()==null){
      arg1 = mInflater.inflate(R.layout.demo1, null);
      holder = new HolderView(arg1);
      arg1.setTag(holder);
     }else{
      holder=(HolderView) arg1.getTag();
     }  
     holder.im.setImageResource(i[arg0]);
     holder.tv1.setText(s1[arg0].toString());
     holder.tv2.setText(s2[arg0].toString());   
     return arg1;
    } 
    class HolderView{
     ImageView im;
     TextView tv1,tv2;
     public HolderView(View v){
      im=(ImageView) v.findViewById(R.id.iv_people);
      tv1=(TextView) v.findViewById(R.id.tv_people);
      tv2=(TextView) v.findViewById(R.id.tv_foodname);
     }
    }
 }