1
我需要一些幫助來理解ICAL重複生成規則。ICAL重複規則生成(RRULE)
我已經創建了一個只有一個事件的日曆。該事件有一個規則在接下來的5天內每兩天重新發生。
谷歌日曆與此生成一個ICS文件。
...
BEGIN:VTIMEZONE
TZID:America/New_York
X-LIC-LOCATION:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
...
這是讓我困惑的部分。
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
編輯
由谷歌產生全ICS文件。
BEGIN:VCALENDAR
PRODID:-//Google Inc//Google Calendar 70.9054//EN
VERSION:2.0
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Public
X-WR-TIMEZONE:America/New_York
X-WR-CALDESC:dsdadsa
BEGIN:VTIMEZONE
TZID:America/New_York
X-LIC-LOCATION:America/New_York
BEGIN:DAYLIGHT
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:EDT
DTSTART:19700308T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:EST
DTSTART:19701101T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;VALUE=DATE:20140415
DTEND;VALUE=DATE:20140416
DTSTAMP:20140319T053224Z
UID:[email protected]
RECURRENCE-ID;VALUE=DATE:20140415
CLASS:PUBLIC
CREATED:20140319T053209Z
DESCRIPTION:
LAST-MODIFIED:20140319T053209Z
LOCATION:
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:event details
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20140413
DTEND;VALUE=DATE:20140414
DTSTAMP:20140319T053224Z
UID:[email protected]
RECURRENCE-ID;VALUE=DATE:20140413
CLASS:PUBLIC
CREATED:20140319T053209Z
DESCRIPTION:
LAST-MODIFIED:20140319T053209Z
LOCATION:
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:event details
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20140411
DTEND;VALUE=DATE:20140412
DTSTAMP:20140319T053224Z
UID:[email protected]
RECURRENCE-ID;VALUE=DATE:20140411
CLASS:PUBLIC
CREATED:20140319T053209Z
DESCRIPTION:
LAST-MODIFIED:20140319T053209Z
LOCATION:
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:event details
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20140409
DTEND;VALUE=DATE:20140410
DTSTAMP:20140319T053224Z
UID:[email protected]
RECURRENCE-ID;VALUE=DATE:20140409
CLASS:PUBLIC
CREATED:20140319T053209Z
DESCRIPTION:
LAST-MODIFIED:20140319T053209Z
LOCATION:
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:event details
TRANSP:TRANSPARENT
END:VEVENT
BEGIN:VEVENT
DTSTART;VALUE=DATE:20140407
DTEND;VALUE=DATE:20140408
DTSTAMP:20140319T053224Z
UID:[email protected]
RECURRENCE-ID;VALUE=DATE:20140407
CLASS:PUBLIC
CREATED:20140319T053209Z
DESCRIPTION:
LAST-MODIFIED:20140319T053209Z
LOCATION:
SEQUENCE:0
STATUS:CONFIRMED
SUMMARY:event details
TRANSP:TRANSPARENT
END:VEVENT
END:VCALENDAR
而不是給創建的所有5個事件分別此
RRULE:FREQ=DAILY;COUNT=5;INTERVAL=2
谷歌。爲什麼。??從四月-7-2014
事件開始是否有任何包在Java中這樣做,節省了我大量的時間
謝謝,這是一個很好的解釋。 :)我認爲谷歌正在以不同的方式構建東西。 爲什麼谷歌建立單獨的VEVENT而不是創建像'RRULE:FREQ = DAILY; COUNT = 5; INTERVAL = 2'這樣的規則? – Dileep
請您可以顯示完整的日曆,包括'VEVENT',以便我可以解釋? – jgm
檢查編輯,我已經添加了所有的細節.. :) – Dileep