android获取联系人列表xml代码和activity代码解决方案

android获取联系人列表xml代码和activity代码
android获取联系人列表xml代码和activity代码 要可以运行的，我在网上找的都不可以运行，我用的版本是2.3的，求解
声明： 以下代码编译没问题，运行报错，本人亲测，我要可以运行，能出正确结果的代码！

Java code

public class MainActivity extends ListActivity  {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        Cursor cr=getContentResolver().query(People.CONTENT_URI, null, null, null, null);        startManagingCursor(cr);                ListAdapter adapter = new SimpleCursorAdapter(this,                 // Use a template that displays a text view                android.R.layout.simple_list_item_1,                 // Give the cursor to the list adatper                cr,                 // Map the NAME column in the people database to...                new String[] {People.NAME} ,                // The "text1" view defined in the XML template                new int[] {android.R.id.text1});         setListAdapter(adapter);    }}

XML code

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android"      package="com.amker.getContact"      android:versionCode="1"      android:versionName="1.0">      <uses-permission android:name="android.permission.READ_CONTACTS" />          <application android:icon="@drawable/icon" android:label="@string/app_name">        <activity android:name=".MainActivity"                  android:label="@string/app_name">            <intent-filter>                <action android:name="android.intent.action.MAIN" />                <category android:name="android.intent.category.LAUNCHER" />            </intent-filter>        </activity>    </application></manifest> 

------解决方案--------------------
[code=Java][/code]

import com.example.android.apis.R;

import android.app.ListActivity;
import android.content.Context;
import android.database.CharArrayBuffer;
import android.database.Cursor;
import android.os.Bundle;
import android.provider.ContactsContract.Contacts;
import android.view.View;
import android.view.ViewGroup;
import android.widget.QuickContactBadge;
import android.widget.ResourceCursorAdapter;
import android.widget.TextView;

public class QuickContactsDemo extends ListActivity {
static final String[] CONTACTS_SUMMARY_PROJECTION = new String[] {
Contacts._ID, // 0
Contacts.DISPLAY_NAME, // 1
Contacts.STARRED, // 2
Contacts.TIMES_CONTACTED, // 3
Contacts.CONTACT_PRESENCE, // 4
Contacts.PHOTO_ID, // 5
Contacts.LOOKUP_KEY, // 6
Contacts.HAS_PHONE_NUMBER, // 7
};

static final int SUMMARY_ID_COLUMN_INDEX = 0;
static final int SUMMARY_NAME_COLUMN_INDEX = 1;
static final int SUMMARY_STARRED_COLUMN_INDEX = 2;
static final int SUMMARY_TIMES_CONTACTED_COLUMN_INDEX = 3;
static final int SUMMARY_PRESENCE_STATUS_COLUMN_INDEX = 4;
static final int SUMMARY_PHOTO_ID_COLUMN_INDEX = 5;
static final int SUMMARY_LOOKUP_KEY = 6;
static final int SUMMARY_HAS_PHONE_COLUMN_INDEX = 7;


@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
String select = "((" + Contacts.DISPLAY_NAME + " NOTNULL) AND ("