<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    xmlns:tools="http://schemas.android.com/tools"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:paddingBottom="@dimen/activity_vertical_margin"

    android:paddingLeft="@dimen/activity_horizontal_margin"

    android:paddingRight="@dimen/activity_horizontal_margin"

    android:paddingTop="@dimen/activity_vertical_margin"

    tools:context="com.example.menudemo.ContextMenuDemo" >

  <ListView

      android:id="@+id/listView"

      android:layout_width="match_parent"

      android:layout_height="match_parent"

      ></ListView>

</RelativeLayout>

package com.example.menudemo;

import java.util.ArrayList;

import java.util.List;

import android.app.Activity;

import android.os.Bundle;

import android.view.ContextMenu;

import android.view.Menu;

import android.view.MenuItem;

import android.view.View;

import android.view.ContextMenu.ContextMenuInfo;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.Toast;

/**

 * ContextMenu的组成

 *         标题以及标题图标

 *         菜单内容

 *         菜单内容的点击响应事件

 *

 * ContextMenu与OptionMenu的区别：

 *         OptionMenu对应的是activity，一个activity只能拥有一个选项菜单

 *          ContextMenu对应的是View，每个View都可以设置上下文菜单

 *          一般情况下ContextMenu常用于ListView或者GridView

 *     ContextMenu创建方法

 *        首先给View注册上下文菜单registerForContextMenu()

 *        添加上下文菜单内容onCreateContextMenu()

 *            -通过代码动态添加

 *            -加载xml文件中的菜单项

 *        设置菜单点击后响应事件onContextItemSelected()

 * @author Administrator

 *

 */

public class ContextMenuDemo extends Activity {

    private ListView listview;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.context_menu);

        showListView();

        this.registerForContextMenu(listview);//给ListView注册上下文菜单

    }

    @Override

    public void onCreateContextMenu(ContextMenu menu, View v,

            ContextMenuInfo menuInfo) {

        // TODO Auto-generated method stub

        super.onCreateContextMenu(menu, v, menuInfo);

        //设置Menu显示的内容

        menu.setHeaderIcon(R.drawable.ic_launcher);

        menu.setHeaderTitle("file oprate");

        menu.add(1, 1, 1, "copy");

        menu.add(1, 2, 1, "cut");

        menu.add(1, 3, 1, "delete");

        menu.add(1, 4, 1, "rename");

        /**加载xml文件中的菜单项

         * getMenuInflater().inflate(R.menu.main,menu);

         */

    }

    @Override

    public boolean onContextItemSelected(MenuItem item) {

        // TODO Auto-generated method stub

    switch(item.getItemId()){

        case 1:

            Toast.makeText(this, "copy", Toast.LENGTH_SHORT).show();

            break;

        case 2:

            Toast.makeText(this, "cut", Toast.LENGTH_SHORT).show();

            break;

        case 3:

            Toast.makeText(this, "delete", Toast.LENGTH_SHORT).show();

            break;

        case 4:

            Toast.makeText(this, "rename", Toast.LENGTH_SHORT).show();

            break;

    }

    return super.onContextItemSelected(item);

    }

    /**

     * 设置ListView显示的内容

     */

    private void showListView(){

        listview = (ListView) findViewById(R.id.listView);

        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1,getData());

        listview.setAdapter(adapter);

    }

    /**

     * 构造ListView显示的数据

     * @return

     */

    private List<String> getData() {

        // TODO Auto-generated method stub

        List<String> list = new ArrayList<String>();

        for(int i = 0;i<5;i++){

            list.add("file"+(i+1));

        }

        return list;

    }

}