// Make sure that the recorder + player are unallocated when the app goes into the background
protected override void OnPause()
{
base.OnPause();
if (audioManager != null)
{
audioManager.CleanUp();
audioManager = null;
}
if (mediaPlayer != null)
{
mediaPlayer.Release();
mediaPlayer = null;
}
if (eventVideo.IsPlaying)
{
eventVideo.StopPlayback();
}
if (tts != null)
{
tts.Clean();
tts = null;
}
}
/// <summary>
/// Progress to the next part of the scenario
/// </summary>
private void ShowNextEvent()
{
currIndex++;
string ttsHelp = "Tap the text to listen to it spoken aloud!";
mainButton.Text = "Record Response";
mainButton.SetBackgroundResource(Resource.Drawable.recordButtonBlue);
if (tts == null)
{
tts = new TTSManager(this, null);
}
canSpeak = true;
if (tts.IsSpeaking())
{
tts.StopSpeaking();
}
// Check if the scenario is complete
if (currIndex >= scenario.ParticipantTasks.Length)
{
ExportRecordings();
return;
}
Title = scenario.Title + " | " + (currIndex + 1) + " of " + scenario.ParticipantTasks.Length;
inputHint.Visibility = ViewStates.Visible;
// Use the alternative layout for giving the user a choice between 2 items
if (scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Type == TaskResponse.ResponseType.Choice)
{
mainLayout.Visibility = ViewStates.Gone;
choiceLayout.Visibility = ViewStates.Visible;
choicePrompt.Text = scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Prompt;
// Load the choice images // TODO allow for more choices
if (scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Related != null)
{
string choice1Key = scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Related[0];
if (resources.ContainsKey(choice1Key))
{
choiceImage1.SetImageURI(Android.Net.Uri.FromFile(new Java.IO.File(resources[choice1Key])));
}
}
if (scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Related != null)
{
string choice2Key = scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Related[1];
if (resources.ContainsKey(choice2Key))
{
choiceImage2.SetImageURI(Android.Net.Uri.FromFile(new Java.IO.File(resources[choice2Key])));
}
}
helpText = ttsHelp +
"\nRead or listen to the prompt and decide which image is most likely the solution. Tap the image to make your choice!";
}
else
{
// Use the standard layout
mainLayout.Visibility = ViewStates.Visible;
choiceLayout.Visibility = ViewStates.Gone;
if (scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Type == TaskResponse.ResponseType.None)
{
canSpeak = false;
inputHint.Visibility = ViewStates.Gone;
eventPrompt.Text = "";
eventPrompt.SetTypeface(null, TypefaceStyle.Normal);
mainButton.Text = "Continue";
helpText = ttsHelp + "\nPress the Continue button to advance the practiceActivity.";
}
// Load text
else if (scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Type == TaskResponse.ResponseType.Freeform)
{
// Make freeform prompts italic
string given = scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Prompt;
eventPrompt.SetTypeface(null, TypefaceStyle.BoldItalic);
eventPrompt.Text = (given != null) ? given : "";
inputHint.Text = "Your response:";
helpText = ttsHelp +
"\nPress the record button follow the instruction below \"Your Response\". Speak as clearly and loud as you can!";
}
else
{
eventPrompt.Text = scenario.ParticipantTasks[currIndex].ParticipantTaskResponse.Prompt;
eventPrompt.SetTypeface(null, TypefaceStyle.Normal);
inputHint.Text = "Please say this:";
helpText = ttsHelp +
"\nPress the record button read the text below \"Please say this\". Speak as clearly and loud as you can, trying to be as accurate to the text as possible!";
}
}
eventTranscript.Text = scenario.ParticipantTasks[currIndex].ParticipantTaskContent.Text;
if (scenario.ParticipantTasks[currIndex].ParticipantTaskContent.Type == TaskContent.ContentType.Video)
{
// load video instead of audio + image
SetDefaultWindowColours();
eventVideo.Visibility = ViewStates.Visible;
eventImage.Visibility = ViewStates.Gone;
string vidKey = scenario.ParticipantTasks[currIndex].ParticipantTaskContent.Visual;
var vidUri = Android.Net.Uri.Parse(resources[vidKey]);
eventVideo.SetVideoURI(vidUri);
eventVideo.Start();
}
else
{
eventVideo.Visibility = ViewStates.Gone;
eventImage.Visibility = ViewStates.Visible;
// Load the image if it exists
string visualKey = scenario.ParticipantTasks[currIndex].ParticipantTaskContent.Visual;
if (visualKey != null && resources.ContainsKey(visualKey))
{
Android.Net.Uri imageUri = Android.Net.Uri.FromFile(new Java.IO.File(resources[visualKey]));
Bitmap bitmap = MediaStore.Images.Media.GetBitmap(ContentResolver, imageUri);
eventImage.SetImageBitmap(bitmap);
Palette.GenerateAsync(bitmap, this);
}
else
{
SetDefaultWindowColours();
}
if (scenario.ParticipantTasks[currIndex].ParticipantTaskContent.Type == TaskContent.ContentType.Audio)
{
// Load audio
string audioKey = scenario.ParticipantTasks[currIndex].ParticipantTaskContent.Audio;
if (audioKey != null && resources.ContainsKey(audioKey))
{
if (mediaPlayer == null)
{
mediaPlayer = new MediaPlayer();
}
else
{
mediaPlayer.Reset();
}
mediaPlayer.SetDataSource(resources[audioKey]);
mediaPlayer.Prepare();
mediaPlayer.Looping = false;
mediaPlayer.Start();
}
else if (autoSpeak)
{
tts.SayLine(eventTranscript.Text, null, true);
}
}
else if (autoSpeak)
{
tts.SayLine(eventTranscript.Text, null, true);
}
}
}
protected override void OnResume()
{
base.OnResume();
audioManager = new AndroidUtils.RecordAudioManager(this);
mainButton.SetBackgroundResource(Resource.Drawable.recordButtonBlue);
if (tts == null)
{
tts = new TTSManager(this, null);
}
ISharedPreferences userPrefs = PreferenceManager.GetDefaultSharedPreferences(this);
autoSpeak = userPrefs.GetBoolean("autoTTS", true);
// Reload the resources for this stage of the scenario, incase they were lost (e.g. audio, video)
if (currIndex >= 0)
{
currIndex--;
ShowNextEvent();
}
else
{
ImageView icon = FindViewById<ImageView>(Resource.Id.scenarioIcon);
AndroidUtils.PrepareIcon(icon, scenario);
}
}