Android当前月Facebook好友生日

Question

我正在编写一个应用程序，其中我正在抓取列表Facebook朋友使用Hackbook示例代码，但现在我想获取列表Facebook朋友那些生日在当前月份，以获得所有朋友的列表我使用此代码:

 public static void requestFriends(FacebookRequest facebookRequest) {
    Log.d(LOG_TAG, "requestFriends(" + ")");
    String query = "select name, birthday, uid, pic_square from user where uid in (select uid2 from friend where uid1=me()) order by birthday_date";
    Bundle params = new Bundle();
    params.putString("method", "fql.query");
    params.putString("query", query);
    FacebookUtility.asyncRunner.request(null, params, new FacebookRequestListener(FacebookRequestListener.FRIENDS, facebookRequest));
}

我仍然使用下面的代码来获取朋友的列表，这些生日在当前月份:

 Calendar c = Calendar.getInstance(); 
    int month = c.get(Calendar.MONTH)+ 1;
    String query = "select name, birthday, uid, pic_square from user where uid in " +
    "(select uid2 from friend where uid1=me())AND birthday_date >= '" + month + "/01' AND birthday_date <= '" + month + "/31' ORDER BY birthday_date ASC";

但是我没有得到任何记录，我错过了什么

Answer 1

你可以做的是使用你正在使用的语言计算以下值，并在你的FQL中使用它们:

1st's day of the current month (17),
Today's month of the year (01)
End date day of the current month (31)

确保分别使用dd和MM格式化日期和月份(如果是个位数，则用零填充)。然后您的FQL看起来像这样:

SELECT name, birthday_date
  FROM user 
  WHERE uid IN (SELECT uid2 FROM friend WHERE uid1 = me())
  AND strlen(birthday_date) != 0
  AND (
       substr(birthday_date, 0, 2) = '01'
       AND substr(birthday_date, 3, 5) >= '01'
       AND substr(birthday_date, 3, 5) < '31'
  ) 
  ORDER BY birthday_date

这将返回生日在1月1日到1月31日之间的朋友

更新:计算当前月份和当前月份最后日期:

Calendar cal=Calendar.getInstance();
int currentmonth=cal.get(Calendar.MONTH)+1
public static Date getLastDateOfMonth(int year, int month) {
   Calendar calendar = new GregorianCalendar(year, month, Calendar.DAY_OF_MONTH);
   calendar.set(Calendar.DAY_OF_MONTH, calendar.getActualMaximum(Calendar.DAY_OF_MONTH));
   return calendar.getTime();
}

Answer 2

使用此查询以升序获取当前月份的facebook好友。

SELECT name, birthday, uid, pic_square FROM user WHERE uid in (SELECT uid2 FROM friend WHERE uid1=me())AND birthday_date >= '01/01/2013' AND birthday_date <= '31/01/2013' ORDER BY birthday_date