删除日历条目

private void deleteEvent(ContentResolver resolver, Uri eventsUri, int calendarId) {    Cursor cursor;    if (android.os.Build.VERSION.SDK_INT <= 7) { //up-to Android 2.1         cursor = resolver.query(eventsUri, new String[]{ "_id" }, "Calendars._id=" + calendarId, null, null);    } else { //8 is Android 2.2 (Froyo) (http://developer.android.com/reference/android/os/Build.VERSION_CODES.html)        cursor = resolver.query(eventsUri, new String[]{ "_id" }, "calendar_id=" + calendarId, null, null);    }    while(cursor.moveTonext()) {        long eventId = cursor.getLong(cursor.getColumnIndex("_id"));        resolver.delete(ContentUris.withAppendedId(eventsUri, eventId), null, null);    }    cursor.close();}

我这样称呼它：

Uri eventsUri;int osVersion = android.os.Build.VERSION.SDK_INT;if (osVersion <= 7) { //up-to Android 2.1     eventsUri = Uri.parse("content://calendar/events");} else { //8 is Android 2.2 (Froyo) (http://developer.android.com/reference/android/os/Build.VERSION_CODES.html)    eventsUri = Uri.parse("content://com.android.calendar/events");}ContentResolver resolver = this.getContentResolver();deleteEvent(resolver, eventsUri, calendarId);