是不是安装完成后没有启动Wamp服务？您说的课程的收藏吗

R文件没了，clean一下就好了，工具栏project，有个clean，选择选中的项目clean

package com.example.shipeiqi;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import java.util.Map;

import android.os.Bundle;

import android.app.Activity;

import android.util.Log;

import android.view.Menu;

import android.view.View;

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 Activity implements OnItemClickListener,OnScrollListener{

ListView listview;

ArrayAdapter<String> arr_adapter;

SimpleAdapter simp_leAdapter;

List<Map<String,Object>>dataList;

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

listview=(ListView) this.findViewById(R.id.listView1);

//1.新建一个数据适配器

//ArrayAdapter(上下文，当前ListView加载的每一个列表项所对应的布局文件，数据源)

  //2.适配器加载数据源

/*

* context:上下文，

* data：数据源 一个map所组成的List集合

*      每一个Map都会去对应Listview列表中的一行。

*/

String []arr_adap={"慕课网1","慕课网2","慕课网3","慕课网4"};

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

arr_adapter=new ArrayAdapter<String>(this, android.R.layout.simple_expandable_list_item_1, arr_adap );

  //3.视图（listview）加载适配器

simp_leAdapter=new SimpleAdapter(this, getdata(), R.layout.activity_atap_adapter, new String []{"pic","text"}, new int []{R.id.imageView1,R.id.textView1});

//listview.setAdapter(arr_adapter);

listview.setAdapter(simp_leAdapter);

listview.setOnItemClickListener(this);

        listview.setOnScrollListener(this);

}

private List<Map<String,Object>> getdata(){

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

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

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

map.put("text", "慕课网"+i);

dataList.add(map);

}

return dataList;

}

@Override

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

// TODO Auto-generated method stub

switch(arg1){

case SCROLL_STATE_FLING:

Log.i("Main","用户在手指离开屏幕之前，由于用力滑了一下，视图还会");

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

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

       map.put("txet", "再加一项");

       dataList.add(map);

       simp_leAdapter.notifyDataSetInvalidated();

       break;

case SCROLL_STATE_IDLE:

break;

case SCROLL_STATE_TOUCH_SCROLL:

break;

}

}

@Override

public void onScrollStateChanged(AbsListView arg0, int arg1) {

// TODO Auto-generated method stub

}

@Override

public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {

// TODO Auto-generated method stub

String text=listview.getItemAtPosition(arg2)+"";  

Toast.makeText(this, "arg2="+arg2+"text="+text, Toast.LENGTH_LONG).show();

}

}