利用ListView批量删除item

利用CheckBox选中一个或多个item，最后批量删除它们。

程序运行效果图如下：

package com.test.adapter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.app.ListActivity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import com.test.adapter.ArrayAdapterActivity.ListVIewAdapter.ViewHolder;

/**
 * ListView 批量删除Item
 * @author manymore13
 *
 */
public class ArrayAdapterActivity extends ListActivity {  

    private ListVIewAdapter ladapter;
    private List<String> strList = new ArrayList<String>();
    private List<Boolean> boolList = new ArrayList<Boolean>();

    boolean visflag = false;
    ListView lv;
    static String str[] ={"1苹果","2香蕉","3桔子","4猕猴桃","5李子","6甘蔗","7荔枝","8桃子","9香瓜","10葡萄","11哈密瓜","12桂圆","13龙眼","14","15","16","17","18","19","20"};
    CheckBox cb;
    {
        for(int i=0;i<str.length;i++)
        {
            strList.add(str[i]);
            boolList.add(false);
        }
    }  

    @Override
    protected void onCreate(Bundle savedInstanceState)
    {  

        super.onCreate(savedInstanceState);  

        ladapter = new ListVIewAdapter(this);  

        lv = this.getListView();
        lv.setAdapter(ladapter);  

        lv.setScrollBarStyle(1);  

        lv.setOnItemClickListener(new OnItemClickListener()
        {  

            @Override
            public void onItemClick(AdapterView<?> parent,
                    View view, int position, long id)
            {
                if(visflag)
                {
                    ViewHolder viewHolder = (ViewHolder) view.getTag();
                    viewHolder.cb.toggle();
                     if(viewHolder.cb.isChecked())
                    {

                        boolList.set(position, true);
                    }else{
                        boolList.set(position, false);
                    }
                 }
            }
        });  

    }  

    class ListVIewAdapter extends BaseAdapter
    {  

        Context c;
        LayoutInflater mInflater ;
        ListVIewAdapter(Context context)
        {
            c = context;
            mInflater = getLayoutInflater();
        }
        @Override
        public int getCount()
        {
            return strList.size();
        }  

        @Override
        public Object getItem(int position)
        {
            return strList.get(position);
        }  

        @Override
        public long getItemId(int position)
        {
            return position;
        }  

        @Override
        public View getView(final int position, View convertView,
                ViewGroup parent)
        {
            ViewHolder holder = null ;
            if(convertView == null)
            {  

                holder = new ViewHolder();
                convertView  = mInflater.inflate(R.layout.list_item, null);
                holder.tv = (TextView)convertView.findViewById(R.id.textView);
                holder.cb = (CheckBox)convertView.findViewById(R.id.checkBox);
                convertView.setTag(holder);

            }else{
                holder = (ViewHolder) convertView.getTag();
            }
            holder.tv.setText(strList.get(position));
            holder.cb.setChecked(boolList.get(position));  

            if(visflag)
            {
                holder.cb.setVisibility(View.VISIBLE);
            }
            else
            {
                holder.cb.setVisibility(View.INVISIBLE);
            }  

            return convertView;
        }
        class ViewHolder
        {
            TextView tv;
            CheckBox cb;
        }  

    }  

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {  

        menu.add(0, 0, 0, "批量处理");
        menu.add(0, 1, 0, "确定删除");
        return super.onCreateOptionsMenu(menu);
    }  

    @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        switch(item.getItemId())
        {
            case 0:  // 批量处理
                {
                    if(visflag)
                    {
                        visflag = false;
                        for(int i=0; i<boolList.size();i++)
                        {
                            boolList.set(i, false);
                        }
                    }
                    else
                    {
                        visflag = true;
                    }
                    this.ladapter.notifyDataSetInvalidated();
                    break;
                }
            case 1: //确定删除
                {
                    if(boolList.size()>0)
                    {
                        if(visflag)
                        {
                            for(int location=0; location<boolList.size(); )
                            {
                                if(boolList.get(location))
                                {
                                    boolList.remove(location);
                                    strList.remove(location);
                                    continue;
                                }
                                location++;
                            }
                        }

                    }
                    this.ladapter.notifyDataSetChanged();
                    break;
                }
        }
        return super.onOptionsItemSelected(item);
    }  

}  

list_item.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content">
        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/hello"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"  

            />
        <CheckBox
            android:id="@+id/checkBox"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:visibility="gone"
            android:focusable="false"
            android:focusableInTouchMode="false"
            android:clickable="false"
           />
    </RelativeLayout>
</LinearLayout>