Merge "Implement a callback to report HotwordDetectionService status" into sc-dev am: 822d0b7f77 am: 12b3ebd8bb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14747457

Change-Id: I22be3807228a0cdcf9c3737d97d0d6bdb8cdb77e

core/java/android/service/voice/SoftwareHotwordDetector.java

@@ -22,6 +22,7 @@ import static com.android.internal.util.function.pooled.PooledLambda.obtainMessa
 
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
+import android.hardware.soundtrigger.SoundTrigger;
 import android.media.AudioFormat;
 import android.os.Handler;
 import android.os.Looper;
@@ -31,6 +32,7 @@ import android.os.RemoteException;
 import android.os.SharedMemory;
 import android.util.Slog;
 
+import com.android.internal.app.IHotwordRecognitionStatusCallback;
 import com.android.internal.app.IVoiceInteractionManagerService;
 
 import java.io.PrintWriter;
@@ -64,7 +66,8 @@ class SoftwareHotwordDetector extends AbstractHotwordDetector {
         mAudioFormat = audioFormat;
         mCallback = callback;
         mHandler = new Handler(Looper.getMainLooper());
-        updateStateLocked(options, sharedMemory, null /* callback */);
+        updateStateLocked(options, sharedMemory,
+                new InitializationStateListener(mHandler, mCallback));
     }
 
     @RequiresPermission(RECORD_AUDIO)
@@ -133,6 +136,58 @@ class SoftwareHotwordDetector extends AbstractHotwordDetector {
         }
     }
 
+    private static class InitializationStateListener
+            extends IHotwordRecognitionStatusCallback.Stub {
+        private final Handler mHandler;
+        private final HotwordDetector.Callback mCallback;
+
+        InitializationStateListener(Handler handler, HotwordDetector.Callback callback) {
+            this.mHandler = handler;
+            this.mCallback = callback;
+        }
+
+        @Override
+        public void onKeyphraseDetected(SoundTrigger.KeyphraseRecognitionEvent recognitionEvent)
+                throws RemoteException {
+
+        }
+
+        @Override
+        public void onGenericSoundTriggerDetected(
+                SoundTrigger.GenericRecognitionEvent recognitionEvent) throws RemoteException {
+
+        }
+
+        @Override
+        public void onRejected(HotwordRejectedResult result) throws RemoteException {
+
+        }
+
+        @Override
+        public void onError(int status) throws RemoteException {
+
+        }
+
+        @Override
+        public void onRecognitionPaused() throws RemoteException {
+
+        }
+
+        @Override
+        public void onRecognitionResumed() throws RemoteException {
+
+        }
+
+        @Override
+        public void onStatusReported(int status) {
+            Slog.v(TAG, "onStatusReported" + (DEBUG ? "(" + status + ")" : ""));
+            mHandler.sendMessage(obtainMessage(
+                    HotwordDetector.Callback::onHotwordDetectionServiceInitialized,
+                    mCallback,
+                    status));
+        }
+    }
+
     /** @hide */
     public void dump(String prefix, PrintWriter pw) {
         // TODO: implement this