Android开发之适配器-ListView适配器的重复数据

package com.czm.adapter;

import java.util.ArrayList;



import android.R.integer;
import android.content.Context;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

import com.czm.entity.FileItem;
import com.czm.xcfilemanager.R;

/**
 * //设置sd卡的list适配器
 * @author jczmdeveloper
 *
 */

public class SdcardListAdapter extends BaseAdapter{

    private LayoutInflater inflater;
    private Context context;
    private ArrayList listData;
    private boolean[]  checkFlagList;
    static class ListItemView{                //自定义控件集合  
        public ImageView imageView;  
        public TextView tvFileName;
        public TextView tvFileOther;  
        public ImageView ivCheck;
       
 }  
    
    public SdcardListAdapter(Context ctx,ArrayList list){
        this.context = ctx;
        this.listData = list;
        inflater = LayoutInflater.from(context);
        
        checkFlagList = new boolean[listData.size()];
    }
    @Override
    public int getCount() {
        // TODO Auto-generated method stub

        return listData.size();
    }

    @Override
    public Object getItem(int position) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public long getItemId(int position) {
        // TODO Auto-generated method stub
        return 0;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        // TODO Auto-generated method stub
        
        //自定义视图
        ListItemView  listItemView = null;
        if(convertView ==null){
            //获取list_item布局文件的视图
            convertView = inflater.inflate(R.layout.sdcard_list_item, null);
            
            listItemView = new ListItemView();
            //获取控件对象
            listItemView.imageView =  (ImageView) convertView.findViewById(R.id.ivFileLogo);
            listItemView.tvFileName = (TextView)convertView.findViewById(R.id.tvFileName);
            listItemView.tvFileOther = (TextView)convertView.findViewById(R.id.tvFileOther);
            listItemView.ivCheck = (ImageView)convertView.findViewById(R.id.ivCheck);
            
            //设置控件集到convertView
            convertView.setTag(listItemView);
        }else {
            listItemView = (ListItemView)convertView.getTag();
        }
        //设置文字和图片
        FileItem fileItem = (FileItem) listData.get(position);
        
        listItemView.imageView.setImageResource(fileItem.getImageID());
        listItemView.tvFileName.setText(fileItem.getStrFileName().toString());
        listItemView.tvFileOther.setText(fileItem.getnFileSize()+
        fileItem.getStrDateTime().toString());
        if(checkFlagList[position]){
            listItemView.ivCheck.setImageResource(R.drawable.check);
        }else{
            listItemView.ivCheck.setImageResource(R.drawable.uncheck);
        }
        
        
        return convertView;
    }
    public void setCheckFlag(int position,boolean bChecked){
        checkFlagList[position] = bChecked;
    }
    public boolean getCheckFlag(int position){
        return checkFlagList[position];
    }
    public boolean[] getCheckFlags(){
        return checkFlagList;
    }

}