android根据电话号码查询联系人名称，导出通讯录所有联系人的方法
1 /* 2 * 根据电话号码取得联系人姓名 3 */ 4 public static String getContactNameByPhoneNumber(Context context, String address) { 5 String[] projection = { ContactsContract.PhoneLookup.DISPLAY_NAME, 6 ContactsContract.CommonDataKinds.Phone.NUMBER }; 7 8 // 将自己添加到 msPeers 中 9 Cursor cursor = context.getContentResolver().query( 10 ContactsContract.CommonDataKinds.Phone.CONTENT_URI, 11 projection, // Which columns to return. 12 ContactsContract.CommonDataKinds.Phone.NUMBER + " = '" 13 + address + "'", // WHERE clause. 14 null, // WHERE clause value substitution 15 null); // Sort order. 16 17 if (cursor == null) { 18 Log.d(TAG, "getPeople null"); 19 return null; 20 } 21 for ( int i = 0; i < cursor.getCount(); i++) { 22 cursor.moveToPosition(i); 23 24 // 取得联系人名字 25 int nameFieldColumnIndex = cursor 26 .getColumnIndex(ContactsContract.PhoneLookup.DISPLAY_NAME); 27 String name = cursor.getString(nameFieldColumnIndex); 28 return name; 29 } 30 return null; 31 } 32 33 /** 34 * 获取所有联系人内容 35 * @param context 36 * @param address 37 * @return 38 */ 39 public static String getContacts(Context context) { 40 StringBuilder sb = new StringBuilder(); 41 42 ContentResolver cr = context.getContentResolver(); 43 Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, 44 null, null, null); 45 46 if (cursor.moveToFirst()) { 47 do { 48 String contactId = cursor.getString(cursor 49 .getColumnIndex(ContactsContract.Contacts._ID)); 50 String name = cursor 51 .getString(cursor 52 .getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)); 53 // 第一条不用换行 54 if(sb.length() == 0){ 55 sb.append(name); 56 } else{ 57 sb.append("\n" + name); 58 } 59 60 Cursor phones = cr.query( 61 ContactsContract.CommonDataKinds.Phone.CONTENT_URI, 62 null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID 63 + " = " + contactId, null, null); 64 while (phones.moveToNext()) { 65 String phoneNumber = phones 66 .getString(phones 67 .getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); 68 // 添加Phone的信息 69 sb.append("\t").append(phoneNumber); 70 71 } 72 phones.close(); 73 74 } while (cursor.moveToNext()); 75 } 76 cursor.close(); 77 return sb.toString();
78 }