Android下使用iCal4j库
很简单，将iCal4j库的jar包以及其dependencies的jar包加到Android工程的lib目录下即可：
iCal4j包下载：http://build.mnode.org/snapshots/org/mnode/ical4j/ical4j/
当前最新版本是ical4j-1.0.2
也可以下载代码自己编译：http://ical4j.hg.sourceforge.net/hgweb/ical4j/ical4j/
当前最新版本是ical4j-1.0.3
backport-util-concurrent包下载：http://backport-jsr166.sourceforge.net/
当前最新版本是3.1
commons-lang 2.x包下载：http://commons.apache.org/lang/download_lang.cgi
当前最新版本是commons-lang-2.6
commons-codec包下载：http://commons.apache.org/codec/download_codec.cgi
当前最新版本是commons-codec-1.6
commons-logging包下载：http://commons.apache.org/logging/download_logging.cgi
当前最新版本是commons-logging-1.1.1
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注意：commons-lang一定要是2.x版本，而不是最新的3.x版本。
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参考：
http://wiki.modularity.net.au/ical4j/index.php?title=Android
http://ical4j.hg.sourceforge.net/hgweb/ical4j/ical4j-android-test/
http://code.google.com/p/caldav4j/source/browse/android/Android.mk
http://code.google.com/p/ical4android/
http://wiki.modularity.net.au/ical4j/index.php?title=FAQ
Q. Does iCal4j work with Android? I tried using it in my Android project but I get a "verifier rejected class" error.
A. iCal4j does seem to work with Android, however you must remember to include the following iCal4j dependencies in addition to the iCal4j library:
commons-lang commons-logging (Possibly optional - due to unofficial inclusion with Android) commons-codec (Possibly optional - due to unofficial inclusion with Android)?
