How to create a submenu programmatically for Google Glass GDK?

Question

How can I create a Submenu for Google Glass dynamically in Code? I want to select an User with Voice Commands like “Select User” -> “Ben”. The User-Data is loaded from a DB, so an XML menu isn't possible. This example works for navigation with swipe gestures:

@Override
public boolean onPrepareOptionsMenu(Menu menu) {
    menu.clear(); 
    SubMenu sbm = menu.addSubMenu(Menu.NONE, 1, menu.NONE, "Select User");
    sbm.add(Menu.NONE, 2, menu.NONE, "Ben");
    sbm.add(Menu.NONE, 3, menu.NONE, "Ted");
    return super.onPrepareOptionsMenu(menu);
}

Now I want to use the same with voice commands in the:

@Override
public boolean onPreparePanel(int featureId, View view, Menu menu) {
    menu.clear(); 
    SubMenu sbm = menu.addSubMenu(Menu.NONE, 1, menu.NONE, "Select User");
    sbm.add(Menu.NONE, 2, menu.NONE, "Ben");
    sbm.add(Menu.NONE, 3, menu.NONE, "Ted");
    return super.onPreparePanel(featureId, view, menu);
}

But the Glass didn't recognize the voice commands. I hope anyone knows an solution and how can I catch the result? Because the following listing doesn't work for this solution.

@Override
public boolean onMenuItemSelected(int featureId, MenuItem item) {
    if (featureId == WindowUtils.FEATURE_VOICE_COMMANDS || featureId == Window.FEATURE_OPTIONS_PANEL) {
        switch (item.getItemId()) {
        case 1:
        ...

many thanks in advance for any solution!

Answer 1

This works fine if I put similar code in onCreatePanelMenu() . Since you are using unlisted voice commands , did you include the following permission in your manifest?

 <uses-permission android:name="com.google.android.glass.permission.DEVELOPMENT"/>