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> 

[解决办法]
[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 ("

+ Contacts.HAS_PHONE_NUMBER + "=1) AND ("
+ Contacts.DISPLAY_NAME + " != '' ))";
Cursor c =
getContentResolver().query(Contacts.CONTENT_URI, CONTACTS_SUMMARY_PROJECTION, select,
null, Contacts.DISPLAY_NAME + " COLLATE LOCALIZED ASC");
startManagingCursor(c);
ContactListItemAdapter adapter = new ContactListItemAdapter(this, R.layout.quick_contacts, c);
setListAdapter(adapter);

}

private final class ContactListItemAdapter extends ResourceCursorAdapter {
public ContactListItemAdapter(Context context, int layout, Cursor c) {
super(context, layout, c);
}

@Override
public void bindView(View view, Context context, Cursor cursor) {
final ContactListItemCache cache = (ContactListItemCache) view.getTag();
TextView nameView = cache.nameView;
QuickContactBadge photoView = cache.photoView;
// Set the name
cursor.copyStringToBuffer(SUMMARY_NAME_COLUMN_INDEX, cache.nameBuffer);
int size = cache.nameBuffer.sizeCopied;
cache.nameView.setText(cache.nameBuffer.data, 0, size);
final long contactId = cursor.getLong(SUMMARY_ID_COLUMN_INDEX);
final String lookupKey = cursor.getString(SUMMARY_LOOKUP_KEY);
cache.photoView.assignContactUri(Contacts.getLookupUri(contactId, lookupKey));
}

@Override
public View newView(Context context, Cursor cursor, ViewGroup parent) {
View view = super.newView(context, cursor, parent);
ContactListItemCache cache = new ContactListItemCache();
cache.nameView = (TextView) view.findViewById(R.id.name);
cache.photoView = (QuickContactBadge) view.findViewById(R.id.badge);
view.setTag(cache);

return view;
}
}

final static class ContactListItemCache {
public TextView nameView;
public QuickContactBadge photoView;
public CharArrayBuffer nameBuffer = new CharArrayBuffer(128);
}
}

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