基于MVC模式的Adapter的ListView

package com.example.mylistview3.adapter;import java.util.ArrayList;import android.content.Context;import android.content.res.Resources;import android.graphics.Bitmap;import android.graphics.BitmapFactory;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ImageView;import android.widget.TextView;import com.example.chocolate.model.Chocolate;import com.example.mylistview3.R;public class ChocolateAdapter extends BaseAdapter {// 数据源private ArrayList<Chocolate> mChocolate;private LayoutInflater minflater;Context mContext;Resources mResources;public ChocolateAdapter(Context context, ArrayList<Chocolate> list) {mContext = context;mChocolate = list;minflater = LayoutInflater.from(context);mResources = context.getResources();}@Overridepublic int getCount() {return mChocolate.size();}@Overridepublic Object getItem(int position) {return mChocolate.get(position);}@Overridepublic long getItemId(int position) {return mChocolate.get(position).getId();}@Overridepublic View getView(int position, View convertView, ViewGroup parent) {View view = convertView;ViewHolder vh = new ViewHolder();if (view == null) {view = minflater.inflate(R.layout.view_chocolate_item, null);vh.tvId = (TextView) view.findViewById(R.id.tv_serial);vh.ivPic = (ImageView) view.findViewById(R.id.iv_image);vh.tvName = (TextView) view.findViewById(R.id.tv_name);vh.tvDescription = (TextView) view.findViewById(R.id.tv_description);view.setTag(vh);} else {vh = (ViewHolder) view.getTag();}Chocolate c = mChocolate.get(position);vh.tvId.setText(String.valueOf(c.getId()));// vh.ivPic.setImageResource(c.getImgReaId());Bitmap bm = BitmapFactory.decodeResource(mResources, c.getImgReaId());vh.ivPic.setImageBitmap(bm);vh.tvName.setText(c.getName());vh.tvDescription.setText(c.getDescription());// View view = getLayoutInflater().inflate(// R.layout.view_chocolate_item, null);// tvId = (TextView) view.findViewById(R.id.tv_serial);// ivPic = (ImageView) view.findViewById(R.id.iv_image);// tvName = (TextView) view.findViewById(R.id.tv_name);// tvDescription = (TextView)// view.findViewById(R.id.tv_description);//// Chocolate c = mChocolate.get(position);// tvId.setText(String.valueOf(c.getId()));// ivPic.setImageResource(c.getImgReaId());// tvName.setText(c.getName());// tvDescription.setText(c.getDescription());return view;}private class ViewHolder {TextView tvId;ImageView ivPic;TextView tvName;TextView tvDescription;}}