From becfbaf25f5aab659e92e08cc3e0fe6b903044d4 Mon Sep 17 00:00:00 2001 From: Galia Peycheva Date: Mon, 19 Dec 2022 12:06:48 +0100 Subject: [PATCH] Make DreamActivity no history The DreamActivity is tied to a DreamService. When the DreamActivity is destroyed, so is the DreamService. If the DreamActivity is consequently recreated by the WM, this leads to a ClassCastException in the DreamActivity.onCreate method. This CL makes the DreamActivity a noHistory activity, which prevents it from being recreated after having been destroyed once. We also handle the case where the callback in onCreate is null or of the wrong type and finish the dream immediately if so. Bug: 231602954 Test: atest DreamManagerServiceTests Change-Id: I93637368374d9de90c588e2b0355ae7b66fb4167 --- core/java/android/service/dreams/DreamActivity.java | 10 ++++++---- .../android/server/wm/ActivityTaskManagerService.java | 2 +- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/core/java/android/service/dreams/DreamActivity.java b/core/java/android/service/dreams/DreamActivity.java index a2fa1392b0796..a3892238f1e6a 100644 --- a/core/java/android/service/dreams/DreamActivity.java +++ b/core/java/android/service/dreams/DreamActivity.java @@ -58,11 +58,13 @@ public class DreamActivity extends Activity { setTitle(title); } - final Bundle extras = getIntent().getExtras(); - mCallback = (DreamService.DreamActivityCallbacks) extras.getBinder(EXTRA_CALLBACK); - - if (mCallback != null) { + final Object callback = getIntent().getExtras().getBinder(EXTRA_CALLBACK); + if (callback instanceof DreamService.DreamActivityCallbacks) { + mCallback = (DreamService.DreamActivityCallbacks) callback; mCallback.onActivityCreated(this); + } else { + mCallback = null; + finishAndRemoveTask(); } } diff --git a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java index 937f2f1c1a2e2..87753a1b10452 100644 --- a/services/core/java/com/android/server/wm/ActivityTaskManagerService.java +++ b/services/core/java/com/android/server/wm/ActivityTaskManagerService.java @@ -1495,7 +1495,7 @@ public class ActivityTaskManagerService extends IActivityTaskManager.Stub { a.persistableMode = ActivityInfo.PERSIST_NEVER; a.screenOrientation = ActivityInfo.SCREEN_ORIENTATION_UNSPECIFIED; a.colorMode = ActivityInfo.COLOR_MODE_DEFAULT; - a.flags |= ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS; + a.flags |= ActivityInfo.FLAG_EXCLUDE_FROM_RECENTS | ActivityInfo.FLAG_NO_HISTORY; a.resizeMode = RESIZE_MODE_UNRESIZEABLE; a.configChanges = 0xffffffff;