public void OnGestureLearned(GestureRecognitionService source, string gestureName)
{
if (source == internalRecognitionService) {
RunOnUiThread(() => vibrator.Vibrate(100));
} else if (source == externalRecognitionService) {
RunOnUiThread(() => Toast.MakeText(this, "Gesture " + gestureName + " learned", ToastLength.Short).Show());
}
}
// gesture recognition callbacks
public void OnGestureRecognized(GestureRecognitionService source, Distribution distribution)
{
if (source == internalRecognitionService) {
if (distribution.BestDistance > 8) return;
RunOnUiThread(() => vibrator.Vibrate(100));
} else if (source == externalRecognitionService) {
if (distribution.BestDistance > 8) return;
RunOnUiThread(() => Toast.MakeText(this, "Gesture " + distribution.BestMatch + " recognized", ToastLength.Short).Show());
}
if (distribution.BestMatch == "left") {
PreviousSlide();
} else if (distribution.BestMatch == "right") {
NextSlide();
} else if (distribution.BestMatch == "pause") {
SwitchPause();
}
}
// entry point
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
clientId = GetClientId();
// gesture recognition
internalRecognitionService = new GestureRecognitionService(new PhoneSensorSource(this));
externalRecognitionService = new GestureRecognitionService(new BluetoothSensorSource(this));
// register callbacks
internalRecognitionService.RegisterListener(this);
externalRecognitionService.RegisterListener(this);
// start detecting gestures
internalRecognitionService.StartClassificationMode();
externalRecognitionService.StartClassificationMode();
// keep light on and screen unlocked
Window.AddFlags(WindowManagerFlags.KeepScreenOn);
// get a vibrator service for feedback
vibrator = (Vibrator) GetSystemService(VibratorService);
// init screen layout
SetContentView(Resource.Layout.Main);
// init server connection
InitializePresItServiceClient();
// register button click events
var authenticateButton = FindViewById<Button>(Resource.Id.AuthenticateButton);
authenticateButton.Click += async (sender, e) => {
var scanner = new MobileBarcodeScanner(this);
var result = await scanner.Scan();
if (result != null) new Thread(() => service.AuthenticateId(clientId, result.Text)).Start();
};
var nextSlideButton = FindViewById<Button>(Resource.Id.NextSlideButton);
nextSlideButton.Click += (sender, e) => NextSlide();
var previousSlideButton = FindViewById<Button>(Resource.Id.PreviousSlideButton);
previousSlideButton.Click += (sender, e) => PreviousSlide();
var pauseButton = FindViewById<Button>(Resource.Id.PauseButton);
pauseButton.Click += (sender, e) => SwitchPause();
var trainingButton = FindViewById<Button>(Resource.Id.TrainingButton);
trainingButton.Click += (sender, e) => {
var text = trainingButton.Text;
SetTraining(internalRecognitionService, ref text);
trainingButton.Text = text;
};
var externalTrainingButton = FindViewById<Button>(Resource.Id.ExternalTrainingButton);
externalTrainingButton.Click += (sender, e) => {
var text = externalTrainingButton.Text;
SetTraining(externalRecognitionService, ref text);
externalTrainingButton.Text = text;
};
var trainingDataSaveButton = FindViewById<Button>(Resource.Id.TrainingDataSaveButton);
trainingDataSaveButton.Click += (sender, e) => {
var prefs = PreferenceManager.GetDefaultSharedPreferences(this);
var editor = prefs.Edit();
editor.PutString("internalRecognitionService", internalRecognitionService.SerializeTrainingSet());
editor.PutString("externalRecognitionService", externalRecognitionService.SerializeTrainingSet());
editor.Commit();
};
var trainingDataLoadButton = FindViewById<Button>(Resource.Id.TrainingDataLoadButton);
trainingDataLoadButton.Click += (sender, e) => {
var prefs = PreferenceManager.GetDefaultSharedPreferences(this);
if (!prefs.Contains("internalRecognitionService") || !prefs.Contains("externalRecognitionService")) return;
internalRecognitionService.DeserializeTrainingSet(prefs.GetString("internalRecognitionService", ""));
externalRecognitionService.DeserializeTrainingSet(prefs.GetString("externalRecognitionService", ""));
};
}
public void OnTrainingSetDeleted(GestureRecognitionService source)
{
}
private void SetTraining(GestureRecognitionService s, ref string buttonText)
{
switch (buttonText) {
case "Start Training Left":
buttonText = "Start Training Right";
s.StartLearnMode("left");
break;
case "Start Training Right":
buttonText = "Start Training Pause";
s.StopLearnMode();
s.StartLearnMode("right");
break;
case "Start Training Pause":
buttonText = "Stop Training";
s.StopLearnMode();
s.StartLearnMode("pause");
break;
default:
buttonText = "Start Training Left";
s.StopLearnMode();
break;
}
}