Calendarcontract.events

      Intent intent = new Intent(Intent.ACTION_INSERT)
                .setData(CalendarContract.Events.CONTENT_URI)
                .putExtra(CalendarContract.Events.TITLE, title)
                .putExtra(CalendarContract.Events.EVENT_LOCATION, location)
                .putExtra(CalendarContract.EXTRA_EVENT_BEGIN_TIME, begin)
                .putExtra(CalendarContract.EXTRA_EVENT_END_TIME, end);
        if (intent.resolveActivity(getPackageManager()) != null) {
            startActivity(intent);