Android CalendarContract class to support Android >= 2.2

CalendarContract class was introduced with Android 4.0 (ICS). Older versions of Android are not supported officially. This class enables the use of the calendar API from Android >= 2.2!

Put this Java file into your project to use it as a wrapper. Pay attention to these issues:

• Not every field is supported on Android < 4. Test carefully! Most properties that are not supported return null in my CalendarContract!
• Some things need extra care on Android < 4! When selecting calendars via query, setting your account in the by query parameters and the sync adapter query is not enough! Also select them via query!

Uri calenderUri = Calendars.CONTENT_URI.buildUpon().appendQueryParameter(CalendarContract.CALLER_IS_SYNCADAPTER, "true")
                .appendQueryParameter(Calendars.ACCOUNT_NAME, myAccountName)
                .appendQueryParameter(Calendars.ACCOUNT_TYPE, myAccountType).build();
Cursor c1 = contentResolver.query(calenderUri, new String[] { BaseColumns._ID },
                Calendars.ACCOUNT_NAME + " = ? AND " + Calendars.ACCOUNT_TYPE + " = ?",
                new String[] { myAccountName, myAccountType }, null);

• Many more problems can occur!

Information

Thanks to Marten Gajda (http://dmfs.org/) for providing the first version, contributed to Birthday Adapter.

How to build this CalendarContract class

1. Copy current version of CalendarContract from Google's Android tree
2. Look at android.provider.Calendar from Android 2.2 how the fields are named there (http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.2_r1.1/android/provider/Calendar.java)
3. Fix CalendarContract based on your findings

Contribute!

If you have fixes or comments please make a issue report or pull request! I appreciate all contributions!