Card not showing; goes straight to home card - google-glass

Question

I am trying to show a card so I know everything up to that point works. However, when I try to display the card, it just goes straight to the home card. The card I was trying to show was just going to display what was said in the voice recognizer before but that didn't work so I just put plain text and that didn't work either. Application goes - voice trigger --> voice recognizer --> this service:
public class MedMinderService extends Service {
public String MedName;
public String voiceResults;
private static final String TAG = "ShowData";
private static final String LIVE_CARD_ID = "showdata";
public static final String PREFS_NAME = "MyPreferencesFile";
private TimelineManager mTimelineManager;
private LiveCard mLiveCard;
#Override
public void onCreate() {
super.onCreate();
mTimelineManager = TimelineManager.from(this);
}
#Override
public IBinder onBind(Intent intent) {
return null;
}
public int onStartCommand(Intent intent, int flags, int startId) {
String voiceResults = intent.getExtras()
.getString(RecognizerIntent.EXTRA_RESULTS);
String MedName = voiceResults; //MedName declared
SharedPreferences MedInfo = getSharedPreferences(PREFS_NAME, 0);
SharedPreferences.Editor editor = MedInfo.edit();
editor.putString("MedName", MedName.toString());
editor.commit();
mLiveCard = mTimelineManager.getLiveCard(LIVE_CARD_ID);
Intent i = new Intent(this, ShowDataActivity.class);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i);
return START_STICKY;
}
}
The intent at the bottom goes to this activity:
public class ShowDataActivity extends Activity {
private LiveCard mLiveCard;
public static final String PREFS_NAME = "MyPreferencesFile";
private GestureDetector mGestureDetector;
#Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
SharedPreferences MedInfo = getSharedPreferences(PREFS_NAME, 0);
Card ShowDataCard = new Card(this);
ShowDataCard.setText("IT WORKS!");
//ShowDataCard.setText(MedInfo.getString("MedName", "your medication"));
View ShowDataCardView = ShowDataCard.toView();
setContentView(ShowDataCardView);
}
The "ShowDataCard" that has been commented out is what I was origonally trying to do with the voice recognition but it wouldn't even work with the text "IT WORKS!"
Again: I am just trying to show a card with the text "IT WORKS"
thanks

Answer 1

The easiest way to get a live card to appear with just text is using widgets that are compatible with RemoteViews. You can find a list of them in the GDK documentation here:
https://developers.google.com/glass/develop/gdk/ui/live-cards
under the Creating low-frequency live cards section.
Here is some sample code (based on your code above) that can get that working quickly:
final String LIVE_CARD_ID = "showdata";
mLiveCard = mTimelineManager.getLiveCard(LIVE_CARD_ID);
RemoteViews remoteViews =
new RemoteViews(getPackageName(), R.layout.layout_helloglass);
mLiveCard.setViews(remoteViews);
// Make sure Glass navigates to LiveCard immediately
mLiveCard.setNonSilent(true);
mLiveCard.publish();
The layout file can look like this for layout_helloglass.xml:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:text="Hello, Glass!" />
</FrameLayout>
If you still want to navigate to another Activity from your LiveCard, you need to associate the Activity with a PendingIntent and then associate that PendingIntent with the LiveCard's action. This would happen immediately before the LiveCard.publish() method:
Intent i = new Intent(this, ShowCardActivity.class);
mLiveCard.setAction(PendingIntent.getActivity(this, 0, i, 0));
That should get you up and running! Hopefully this will help.

Answer 2

There was a bug in the GDK Sneak Peek that prevented voice prompts from creating Services. If one inserted a Log.d() call in a Service's onStartCommand() override, they would discover that it were never called.
This bug has been fixed in the GDK Preview. This behavior should not appear again.
This question was rewritten after the GDK Preview launch to remove this outdated answer. Thanks to user Falcon for notifying me.