获取Android 2.1的联系人生日字段

获取有生日信息的联系人的生日字段：

ContentResolver cr = getContentResolver（）;

Uri uri = ContactsContract.Data.CONTENT_URI;

String [] projection = new String[]{Event.DATA1};

String selection = Data.MIMETYPE+"=""+Event.CONTENT_ITEM_TYPE+"""+" and "+Event.TYPE+"=""+Event.TYPE_BIRTHDAY+""";

Cursor cursor = cr.query（uri, projection, selection, null, null）;

List<Contacts> listcontacts = new ArrayList<Contacts>（）;

if（cursor！=null）{

if（cursor.moveToFirst（））{

do{

Contacts contacts = new Contacts（）;

contacts.setBirthday（cursor.getString（0））;

listcontacts.add（contacts）;

}while（cursor.moveToNext（））;

}

return listcontacts;