protected override void OnCreate(Bundle savedInstanceState)
{
AppController.CheckStrictMode();
base.OnCreate(savedInstanceState);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
btnSayIt = FindViewById <Button>(Resource.Id.btnSpeak);
btnShare = FindViewById <Button>(Resource.Id.btnShare);
btnClear = FindViewById <Button>(Resource.Id.btnClear);
cbShareText = FindViewById <CheckBox>(Resource.Id.checkBoxShareText);
spinLanguages = FindViewById <Spinner>(Resource.Id.spinLanguage);
var editWhatToSay = FindViewById <EditText>(Resource.Id.editSpeech);
var txtSpeedVal = FindViewById <TextView>(Resource.Id.textSpeed);
var txtPitchVal = FindViewById <TextView>(Resource.Id.textPitch);
var seekSpeed = FindViewById <SeekBar>(Resource.Id.seekSpeed);
var seekPitch = FindViewById <SeekBar>(Resource.Id.seekPitch);
var lblVersion = FindViewById <TextView>(Resource.Id.lblVersion);
// create the TTS callback handler
listner = new UtteranceProgressListenerWrapper(
(string x) =>
{
//onDone
saveDone = true;
return(true);
},
(string x) =>
{
//onError
saveDone = false;
AlertDialog.InfoMessage(this, ":(", GetText(Resource.String.say_error), null);
return(false);
},
(string x) =>
{
//onBegin
saveDone = false;
return(true);
}
);
controller = new AppController(this, this, this, listner);
// set up the initial pitch and speed values then the onscreen values
// the pitch and rate both go from 0f to 1f, however if you have a seek bar with a max of 1, you get a single step
// therefore, a simpler option is to have the slider go from 0 to 255 and divide the position of the slider by 255 to get
// the float
seekPitch.Progress = 254;
seekSpeed.Progress = 254;
txtPitchVal.Text = "1.00";
txtSpeedVal.Text = "1.00";
// connect up the events
btnSayIt.Click += delegate
{
// if there is nothing to say, don't say it
if (!string.IsNullOrEmpty(editWhatToSay.Text))
{
controller.Speak(editWhatToSay.Text);
}
else
{
Toast.MakeText(this, GetText(Resource.String.no_text), ToastLength.Long).Show();
}
saveDone = false;
};
btnClear.Click += delegate
{
editWhatToSay.Text = "";
saveDone = false;
};
btnShare.Click += delegate
{
SaveAudio(editWhatToSay.Text);
};
// sliders
seekPitch.StopTrackingTouch += (object sender, SeekBar.StopTrackingTouchEventArgs e) =>
{
var seek = sender as SeekBar;
var progress = seek.Progress / 255f;
controller.SetPitch(progress);
txtPitchVal.Text = progress.ToString("F2");
};
seekSpeed.StopTrackingTouch += (object sender, SeekBar.StopTrackingTouchEventArgs e) =>
{
var seek = sender as SeekBar;
var progress = seek.Progress / 255f;
controller.SetSpeechRate(progress);
txtSpeedVal.Text = progress.ToString("F2");
};
spinLanguages.ItemSelected += (object sender, AdapterView.ItemSelectedEventArgs e) =>
{
// find the selected locale
controller.UpdateLocale((int)e.Id);
// create intent to check the TTS has this language installed
var checkTTSIntent = new Intent();
checkTTSIntent.SetAction(TextToSpeech.Engine.ActionCheckTtsData);
StartActivityForResult(checkTTSIntent, needLang);
};
lblVersion.Text = "v." + PackageManager.GetPackageInfo(PackageName, 0).VersionName;
}
public AppController(Context context, Activity activity, TextToSpeech.IOnInitListener initListener, UtteranceProgressListenerWrapper listenerWrapper)
{
_context = context;
_activity = activity;
OutputFile = new OutputFileModel(_context.GetText(Resource.String.save_dir));
SetDefaultLocale();
// set up the TextToSpeech object
// third parameter is the speech engine to use
_textToSpeech = new TextToSpeech(context, initListener, "com.google.android.tts");
// set up the speech to use the default langauge
// if a language is not available, then the default language is used.
_textToSpeech.SetLanguage(SelectedLocale);
// set the speed and pitch
_textToSpeech.SetPitch(1f);
_textToSpeech.SetSpeechRate(1f);
_textToSpeech.SetOnUtteranceProgressListener(listenerWrapper);
}
