Minor improvements on voice interaction workflows.

Bug: 131411751
Fixes: 132783948

Test: atest CtsVoiceInteractionTestCases CtsAssistTestCases

Change-Id: I28c8577caa35a783863f4313487c6e9b9abc8ff2

core/java/android/app/ActivityThread.java

@@ -123,7 +123,6 @@ import android.provider.Settings;
 import android.renderscript.RenderScriptCacheDir;
 import android.security.NetworkSecurityPolicy;
 import android.security.net.config.NetworkSecurityConfigProvider;
-import android.service.voice.VoiceInteractionSession;
 import android.system.ErrnoException;
 import android.system.OsConstants;
 import android.system.StructStat;
@@ -3555,11 +3554,13 @@ public final class ActivityThread extends ClientTransactionHandler {
             @NonNull RemoteCallback callback) {
         final ActivityClientRecord r = mActivities.get(activityToken);
         if (r == null) {
+            Log.w(TAG, "requestDirectActions(): no activity for " + activityToken);
             callback.sendResult(null);
             return;
         }
         final int lifecycleState = r.getLifecycleState();
         if (lifecycleState < ON_START || lifecycleState >= ON_STOP) {
+            Log.w(TAG, "requestDirectActions(" + r + "): wrong lifecycle: " + lifecycleState);
             callback.sendResult(null);
             return;
         }

services/core/java/com/android/server/audio/AudioService.java

@@ -1452,7 +1452,13 @@ public class AudioService extends IAudioService.Stub
                         Settings.Secure.ASSISTANT, UserHandle.USER_CURRENT);
             }
             if (!TextUtils.isEmpty(assistantName)) {
-                packageName = ComponentName.unflattenFromString(assistantName).getPackageName();
+                ComponentName componentName = ComponentName.unflattenFromString(assistantName);
+                if (componentName == null) {
+                    Slog.w(TAG, "Invalid service name for "
+                            + Settings.Secure.VOICE_INTERACTION_SERVICE + ": " + assistantName);
+                    return;
+                }
+                packageName = componentName.getPackageName();
             }
         }
         if (!TextUtils.isEmpty(packageName)) {