Changed createRootTask task to be completely async

Currently some of the information about a task created by createRootTask
is returned with the method and the rest like leash is return in
onTaskAppear. Mixing both async and sync infromation return styles
complicates the mental model for this. So, we will have this be
completely aync for now.

Also, fixed an issue where the windowing mode for organizer created
task was not set correctly before the organizer gets the first task
appear signal.

Bug: 169266958
Test: Split-screen works!
Change-Id: Ia4180d5a42838bf566fbf75f40466dfd8237e0f1

1 files changed, 10 insertions, 3 deletions

diff --git a/core/java/android/window/TaskOrganizer.java b/core/java/android/window/TaskOrganizer.java
index 6c739bed35a4..ad48a9f9f776 100644
--- a/core/java/android/window/TaskOrganizer.java
+++ b/core/java/android/window/TaskOrganizer.java
@@ -23,6 +23,7 @@ import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.TestApi;
 import android.app.ActivityManager;
+import android.os.IBinder;
 import android.os.RemoteException;
 import android.view.SurfaceControl;
 
@@ -101,12 +102,18 @@ public class TaskOrganizer extends WindowOrganizer {
     @BinderThread
     public void onBackPressedOnTaskRoot(@NonNull ActivityManager.RunningTaskInfo taskInfo) {}
 
-    /** Creates a persistent root task in WM for a particular windowing-mode. */
+    /**
+     * Creates a persistent root task in WM for a particular windowing-mode.
+     * @param displayId The display to create the root task on.
+     * @param windowingMode Windowing mode to put the root task in.
+     * @param launchCookie Launch cookie to associate with the task so that is can be identified
+     *                     when the {@link ITaskOrganizer#onTaskAppeared} callback is called.
+     */
     @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS)
     @Nullable
-    public ActivityManager.RunningTaskInfo createRootTask(int displayId, int windowingMode) {
+    public void createRootTask(int displayId, int windowingMode, @Nullable IBinder launchCookie) {
         try {
-            return mTaskOrganizerController.createRootTask(displayId, windowingMode);
+            mTaskOrganizerController.createRootTask(displayId, windowingMode, launchCookie);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }