Documentation / Support Request about ical4j

[benfortuna]

Do you have a sample calendar file to demonstrate the issue? ical4j should only create XComponents/XProperties when it can't identify an appropriate factory.

[rfc2822]

(Have created a new issue for that, see #43)

[benfortuna]

Since the last release (ical4j-2.0-alpha1) I have refactored the registration of factories to reduce code duplication and make it a bit more extensible. To do this I am using the java.util.ServiceLoader, which relies on resource files in the META-INF/services directory.

I suspect what is happening is that the META-INF/services folder isn't being packaged into the APK, and so the factories aren't being registered properly. This would explain why all the components are XComponents and properties are XProperties. I found a bug report on the ApkBuilder that strips the META-INF directory, which may be the cause depending on how you are building the APK:

https://code.google.com/p/android/issues/detail?id=59658

I haven't tried to build an APK from the latest ical4j code so I may be off the mark, but it sounds like the Gradle based build doesn't have this issue. Would you be able to confirm whether the META-INF/services directory is being packaged into your APK?

[FredFirestone]

Thank's for your efforts, you seem to have hit the issue: My apk does indeed not have the META-INF/services directory.
I've likely not used gradle, so you may be right that Gradle based builds would not have this issue. Thanks again for getting to the bottom of this.

[pxg0]

I am in the same situation. I am trying to parse the iCal below and am encountering the same problems with XProperties and XComponents. Ideally, I was hoping to be able to get 'EST' after the iCal is parsed. I tried adding the files manually, zipping the apk and resigning it, but android does not like the apk. I am using 2.0.1 beta jar. Any ideas/works-arounds would be appreciated.

BEGIN:VCALENDAR
PRODID:-//Microsoft Corporation//Outlook 10.0 MIMEDIR//EN
VERSION:2.0
METHOD:REQUEST
BEGIN:VTIMEZONE
TZID:Eastern Time
BEGIN:STANDARD
DTSTART:20131101T020000
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=1SU;BYMONTH=11
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
TZNAME:Standard Time
END:STANDARD
BEGIN:DAYLIGHT
DTSTART:20130301T020000
RRULE:FREQ=YEARLY;INTERVAL=1;BYDAY=2SU;BYMONTH=3
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
TZNAME:Daylight Savings Time
END:DAYLIGHT
END:VTIMEZONE
BEGIN:VEVENT
ATTENDEE;CN="A B";ROLE=REQ-PARTICIPANT;RSVP=TRUE:MAILTO:[email protected]
ORGANIZER;CN="A C":MAILTO:[email protected]
DTSTART;TZID="Eastern Time":20150813T200453
DTEND;TZID="Eastern Time":20150813T201953
LOCATION:https://blackberry.webex.com/blackberry
TRANSP:OPAQUE
SEQUENCE:1439510693
UID:f9e4688f-4e92-405a-943a-a611ea8d8692
DTSTAMP:20150814T000453Z
DESCRIPTION:\nJOIN WEBEX MEETING\n
SUMMARY:test1
PRIORITY:5
CLASS:PUBLIC
END:VEVENT
END:VCALENDAR

[benfortuna]

I still don't have a solution for this, as I haven't had time to experiment with Android. Here is some more info about the issue and what other devs are trying (some successfully it seems):

http://stackoverflow.com/questions/5760607/using-serviceloader-on-android