我的手机管家（7）骚扰拦截 适配器

package com.chb.myphonesave.adapter;

import java.util.List;

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;

import com.chb.myphonesave.R;
import com.chb.myphonesave.entity.BlackNumberInfo;

public class BlackNumberAdapter extends BaseAdapter {
    private List<BlackNumberInfo> list;

    LayoutInflater layoutInflater;
    public BlackNumberAdapter(Context context, List<BlackNumberInfo> list) {
        layoutInflater = LayoutInflater.from(context);
        this.list = list;
    }
    public int getCount() {
        return list.size();
    }

    public BlackNumberInfo getItem(int position) {
        return list.get(position);
    }

    public long getItemId(int position) {
        return position;
    }
    public View getView(final int position, View convertView, ViewGroup parent) {
        ViewHolder holder;
        if (convertView == null) {
            holder = new ViewHolder();
            convertView = layoutInflater.inflate(
                    R.layout.abn_item, null);
            holder.tvNumber = (TextView) convertView
                    .findViewById(R.id.black_tv_number);
            holder.tvMode = (TextView) convertView
                    .findViewById(R.id.black_tv_mode);
            holder.ivDelete = (ImageView) convertView
                    .findViewById(R.id.black_iv_delete);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }
        final BlackNumberInfo info = getItem(position);
        holder.tvNumber.setText(info.number);
        switch (info.mode) {
        case 1:
            holder.tvMode.setText("拦截电话");
            break;
        case 2:
            holder.tvMode.setText("拦截短信");
            break;
        case 3:
            holder.tvMode.setText("拦截电话和短信");
            break;
        default:
            break;
        }

        return convertView;
    }
    class ViewHolder {
        public TextView tvNumber;
        public TextView tvMode;
        public ImageView ivDelete;
    }
}