AlwaysOnHotwordDetector needs to reflect enrollment changes

Add a callback for when any sound model change happens. This helps the VIS
to re-check the availability and either enroll the user, or start/stop recognition.

Also shut down any active recognition when VIS dies, or a different hotword detector instance is obtained from VIS.

Change-Id: I03f94e78c6ee307afe822a84aebc7e74c64de7b4

1 files changed, 34 insertions, 18 deletions

diff --git a/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionService.java b/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionService.java
index e74307f..e750bb6 100644
--- a/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionService.java
+++ b/tests/VoiceInteraction/src/com/android/test/voiceinteraction/MainInteractionService.java
@@ -50,38 +50,54 @@ public class MainInteractionService extends VoiceInteractionService {
         Log.i(TAG, "Keyphrase enrollment meta-data: "
                 + Arrays.toString(getKeyphraseEnrollmentInfo().listKeyphraseMetadata()));
 
-        mHotwordDetector = getAlwaysOnHotwordDetector("Hello There", "en-US", mHotwordCallback);
+        mHotwordDetector = createAlwaysOnHotwordDetector("Hello There", "en-US", mHotwordCallback);
+        testHotwordAvailabilityStates();
+    }
+
+    @Override
+    public void onSoundModelsChanged() {
         int availability = mHotwordDetector.getAvailability();
         Log.i(TAG, "Hotword availability = " + availability);
+        if (availability == AlwaysOnHotwordDetector.STATE_INVALID) {
+            mHotwordDetector = createAlwaysOnHotwordDetector("Hello There", "en-US", mHotwordCallback);
+        }
+        testHotwordAvailabilityStates();
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        Bundle args = new Bundle();
+        args.putParcelable("intent", new Intent(this, TestInteractionActivity.class));
+        startSession(args);
+        stopSelf(startId);
+        return START_NOT_STICKY;
+    }
 
+    private void testHotwordAvailabilityStates() {
+        int availability = mHotwordDetector.getAvailability();
+        Log.i(TAG, "Hotword availability = " + availability);
         switch (availability) {
-            case AlwaysOnHotwordDetector.KEYPHRASE_HARDWARE_UNAVAILABLE:
-                Log.i(TAG, "KEYPHRASE_HARDWARE_UNAVAILABLE");
+            case AlwaysOnHotwordDetector.STATE_INVALID:
+                Log.i(TAG, "STATE_INVALID");
+                break;
+            case AlwaysOnHotwordDetector.STATE_HARDWARE_UNAVAILABLE:
+                Log.i(TAG, "STATE_HARDWARE_UNAVAILABLE");
                 break;
-            case AlwaysOnHotwordDetector.KEYPHRASE_UNSUPPORTED:
-                Log.i(TAG, "KEYPHRASE_UNSUPPORTED");
+            case AlwaysOnHotwordDetector.STATE_KEYPHRASE_UNSUPPORTED:
+                Log.i(TAG, "STATE_KEYPHRASE_UNSUPPORTED");
                 break;
-            case AlwaysOnHotwordDetector.KEYPHRASE_UNENROLLED:
-                Log.i(TAG, "KEYPHRASE_UNENROLLED");
+            case AlwaysOnHotwordDetector.STATE_KEYPHRASE_UNENROLLED:
+                Log.i(TAG, "STATE_KEYPHRASE_UNENROLLED");
                 Intent enroll = mHotwordDetector.getManageIntent(
                         AlwaysOnHotwordDetector.MANAGE_ACTION_ENROLL);
                 Log.i(TAG, "Need to enroll with " + enroll);
                 break;
-            case AlwaysOnHotwordDetector.KEYPHRASE_ENROLLED:
-                Log.i(TAG, "KEYPHRASE_ENROLLED");
+            case AlwaysOnHotwordDetector.STATE_KEYPHRASE_ENROLLED:
+                Log.i(TAG, "STATE_KEYPHRASE_ENROLLED");
                 int status = mHotwordDetector.startRecognition(
                         AlwaysOnHotwordDetector.RECOGNITION_FLAG_NONE);
                 Log.i(TAG, "startRecognition status = " + status);
                 break;
         }
     }
-
-    @Override
-    public int onStartCommand(Intent intent, int flags, int startId) {
-        Bundle args = new Bundle();
-        args.putParcelable("intent", new Intent(this, TestInteractionActivity.class));
-        startSession(args);
-        stopSelf(startId);
-        return START_NOT_STICKY;
-    }
 }