run method

@override Future<void> run()

This application uses platform speech-to-text to listen to audio from the host mic, convert to text, and send the text to the Frame. A Wiki query is also sent, and the resulting content is shown in Frame. The lifetime of this run() is short, it sets up the listeners for taps and speech but keeps application state as running. It has a running main loop on the Frame (frame_app.lua)

Implementation

@override
Future<void> run() async {
  currentState = ApplicationState.running;
  if (mounted) setState(() {});

  // listen for taps for next(1)/prev(2) page and new query (3)
  _tapSubs?.cancel();
  _tapSubs = RxTap().attach(frame!.dataResponse).listen((taps) async {
    _log.fine(() =>
        'taps: $taps, currentPageBeforeTap: $_currentPage, extractLength: ${_extract?.length}');
    switch (taps) {
      case 1:
        // next
        if (_extract != null) {
          if (nextPage()) {
            await frame!.sendMessage(
                TxPlainText(msgCode: 0x0a, text: getCurrentPageText()));
            setState(() {});
          }
        }
        break;
      case 2:
        // prev
        if (_extract != null) {
          if (previousPage()) {
            await frame!.sendMessage(
                TxPlainText(msgCode: 0x0a, text: getCurrentPageText()));
            setState(() {});
          }
        }
        break;
      case 3:
        // new query
        _currentPage = -1;
        setState(() {});
        await _speechToText.listen(
          listenOptions: SpeechListenOptions(
              cancelOnError: true,
              onDevice: true,
              listenMode: ListenMode.search),
          onResult: processSpeechRecognitionResult,
        );
        break;
      default:
    }
  });

  // let Frame know to subscribe for taps and send them to us
  await frame!.sendMessage(TxCode(msgCode: 0x10, value: 1));

  // prompt the user to begin tapping
  await frame!.sendMessage(TxPlainText(
      msgCode: 0x0a,
      text:
          '3-Tap for new query\n____\n1-Tap next page\n2-Tap previous page'));
}