或者把你的代码回复给我看看（企业是刚入门囧）

你把这两个文件（activity_main.xml和MainActivity.java）和你的对比一下，看看少些了哪些

MainActivity.java

package com.example.listview;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import android.os.Bundle;

import android.support.v4.app.FragmentActivity;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.AbsListView;

import android.widget.AbsListView.OnScrollListener;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.ArrayAdapter;

import android.widget.ListView;

import android.widget.SimpleAdapter;

import android.widget.Toast;

public class MainActivity extends FragmentActivity implements OnItemClickListener, OnScrollListener {

    private ListView listView;

    private ArrayAdapter<String> arrayAdapter;

    private SimpleAdapter simpleAdapter;

    private List<Map<String, Object>> dataList;

    @Override

    protected void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

        listView = (ListView) findViewById(R.id.listView1);

        String[] arrData = new String[] { "apple", "banana", "orange", "pear" };

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

        listView.setAdapter(arrayAdapter);

        dataList = new ArrayList<Map<String, Object>>();

        for (int i = 0; i < 20; i ++) {

            Map<String, Object> map = new HashMap<String, Object>();

            map.put("pic", R.drawable.ic_lena);

            map.put("text", "Item number : " + i);

            dataList.add(map);

        }

        simpleAdapter = new SimpleAdapter(this, dataList, R.layout.item, new String[] {"pic", "text"}, new int[] {R.id.pic, R.id.text});

        listView.setAdapter(simpleAdapter);

        listView.setOnItemClickListener(this);

        listView.setOnScrollListener(this);

    }

    @Override

    public void onScroll(AbsListView arg0, int arg1, int arg2, int arg3) {

        // TODO Auto-generated method stub

    }

    @Override

    public void onScrollStateChanged(AbsListView view, int scrollState) {

        String scrollStatString = "";

        switch (scrollState) {

        case SCROLL_STATE_FLING:

            scrollStatString = "用户手指离开屏幕之前，由于用力滑了一下，视图仍在继续滑动";

            Map<String, Object> map = new HashMap<String, Object>();

            map.put("pic", R.drawable.ic_lena);

            map.put("text", "新增项");

            dataList.add(map);

            simpleAdapter.notifyDataSetChanged();

            break;

        case SCROLL_STATE_IDLE:

            scrollStatString = "视图已经停止滑动";

            break;

        case SCROLL_STATE_TOUCH_SCROLL:

            scrollStatString = "手指没有离开屏幕，试图正在滑动";

            break;

        }

        Toast.makeText(this, scrollStatString, Toast.LENGTH_SHORT).show();

    }

    @Override

    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {

        String text = "position=" + position + " item=" + listView.getItemAtPosition(position);

        Toast.makeText(this, text, Toast.LENGTH_SHORT).show();

    }

}

MainActivity.java

activity_main.xml

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

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

    xmlns:android1="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent"

    android:orientation="vertical" >

    <ListView

        android1:id="@+id/listView1"

        android1:layout_width="match_parent"

        android1:layout_height="wrap_content" >

    </ListView>

</LinearLayout>

亲，你是不是没有写gridView.setOnItemClickListener(this);

定义了监听器之后还要把监听器关联到gridView上去。