public static final String[] EVENT_PROJECTION = new String[] {
    Calendars._ID,
    Calendars.ACCOUNT_NAME,
    Calendars.CALENDAR_DISPLAY_NAME,
    Calendars.ACCOUNT_TYPE,
    Calendars.CALENDAR_ACCESS_LEVEL,
    Calendars.IS_PRIMARY
};

// Run query
Cursor cur = null;
ContentResolver cr = getContentResolver();
Uri uri = Calendars.CONTENT_URI;
// Submit the query and get a Cursor object back.
cur = cr.query(uri, EVENT_PROJECTION, "", null, null);