Android编程基于Contacts读取联系人的方法(附demo源码)

package com.homer.phone; 
import java.util.ArrayList; 
import java.util.HashMap; 
import android.app.Activity; 
import android.database.Cursor; 
import android.os.Bundle; 
import android.provider.ContactsContract; 
import android.provider.ContactsContract.CommonDataKinds.Phone; 
import android.widget.ListView; 
import android.widget.SimpleAdapter; 
public class phoneRead extends Activity { 
 @Override 
 public void onCreate(Bundle savedInstanceState){ 
  super.onCreate(savedInstanceState); 
  showListView(); 
 } 
 private void showListView(){ 
  ListView listView = new ListView(this); 
  ArrayList<HashMap<String, String>> list = getPeopleInPhone2(); 
  SimpleAdapter adapter = new SimpleAdapter( 
         this, 
         list, 
         android.R.layout.simple_list_item_2, 
         new String[] {"peopleName", "phoneNum"}, 
         new int[]{android.R.id.text1, android.R.id.text2} 
        ); 
  listView.setAdapter(adapter); 
  setContentView(listView); 
 } 
 private ArrayList<HashMap<String, String>> getPeopleInPhone2(){ 
  ArrayList<HashMap<String, String>> list = new ArrayList<HashMap<String, String>>(); 
  Cursor cursor = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);  // 获取手机联系人 
  while (cursor.moveToNext()) { 
   HashMap<String, String> map = new HashMap<String, String>(); 
   int indexPeopleName = cursor.getColumnIndex(Phone.DISPLAY_NAME); // people name 
   int indexPhoneNum = cursor.getColumnIndex(Phone.NUMBER);   // phone number 
   String strPeopleName = cursor.getString(indexPeopleName); 
   String strPhoneNum = cursor.getString(indexPhoneNum); 
   map.put("peopleName", strPeopleName); 
   map.put("phoneNum", strPhoneNum); 
   list.add(map); 
  } 
  if(!cursor.isClosed()){ 
   cursor.close(); 
   cursor = null; 
  } 
  return list; 
 } 
}