/// <summary>
/// Check if this feature is supported for your device
/// </summary>
/// <returns></returns>
private async System.Threading.Tasks.Task <bool> ValidateSpeechRecognition()
{
if (!this.speech.IsSupported)
{
App.ShowToast("Speech recognition is not supported for this device at this moment..");
return(false);
}
else
{
var status = await speech.RequestPermission();
if (status != SpeechRecognizerStatus.Available)
{
App.AddLog("Permission denied for speech recognition");
App.ShowToast("Don't have the permission for the mic");
return(false);
}
}
return(true);
}
public DictationViewModel(ISpeechRecognizer speech)
{
IDisposable token = null;
speech
.WhenListeningStatusChanged()
.Subscribe(x => this.ListenText = x
? "Stop Listening"
: "Start Dictation"
);
this.ToggleListen = new Command(async() =>
{
if (speech.Status != SpeechRecognizerStatus.Available)
{
this.ListenText = "Problem with speech recognition engine - " + speech.Status;
return;
}
var granted = await speech.RequestPermission();
if (!granted)
{
this.ListenText = "Invalid Permissions";
return;
}
if (token == null)
{
token = speech
.ContinuousDictation()
//.Catch<string, Exception>(ex => Observable.Return(ex.ToString()))
.Subscribe(x => this.Text += " " + x);
}
else
{
token.Dispose();
token = null;
}
});
}
public ChatViewModel(ITextToSpeech tts, ISpeechRecognizer speech, ISpeechDialogs dialogs)
{
this.tts = tts;
speech.WhenListeningStatusChanged().Subscribe(x => this.IsListening = x);
this.Start = new Command(async() =>
{
if (speech.Status != SpeechRecognizerStatus.Available)
{
await tts.Speak("Problem with speech recognition engine - " + speech.Status);
return;
}
var granted = await speech.RequestPermission();
if (!granted)
{
await tts.Speak("Hey Dummy! Ya you! You didn't enable permissions for the microphone");
return;
}
var answer = await dialogs.Prompt("Hello, please tell me your name?");
await tts.Speak($"Hello {answer}");
});
}