Show Taskbar education when launching an app pair.

This change ensures that the Taskbar education shows up when a saved app
pair is launched and the education had not been seen before. This
matches the expected behavior as well as transient taskbar's behavior.

Fix: 323298512
Test: Create an app pair, reset taskbar education and launch the app
pair from home. Repeat for 3 button nav and pinned taskbar.
Flag: EXEMPT bugfix

Change-Id: I5ca68424f846f25beb1390c2dc50dfac3ba8e8d9
diff --git a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
index d678c46..5da2df8 100644
--- a/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
+++ b/quickstep/src/com/android/launcher3/uioverrides/QuickstepLauncher.java
@@ -1403,8 +1403,14 @@
      * Launches two apps as an app pair.
      */
     public void launchAppPair(AppPairIcon appPairIcon) {
+        // Potentially show the Taskbar education once the app pair launch finishes
         mSplitSelectStateController.getAppPairsController().launchAppPair(appPairIcon,
-                CUJ_LAUNCHER_LAUNCH_APP_PAIR_FROM_WORKSPACE);
+                CUJ_LAUNCHER_LAUNCH_APP_PAIR_FROM_WORKSPACE,
+                (success) -> {
+                    if (success && mTaskbarUIController != null) {
+                        mTaskbarUIController.showEduOnAppLaunch();
+                    }
+                });
     }
 
     public boolean canStartHomeSafely() {
diff --git a/quickstep/src/com/android/quickstep/util/AppPairsController.java b/quickstep/src/com/android/quickstep/util/AppPairsController.java
index c3d74bb..8478ac9 100644
--- a/quickstep/src/com/android/quickstep/util/AppPairsController.java
+++ b/quickstep/src/com/android/quickstep/util/AppPairsController.java
@@ -74,6 +74,7 @@
 
 import java.util.Arrays;
 import java.util.List;
+import java.util.function.Consumer;
 
 /**
  * Controller class that handles app pair interactions: saving, modifying, deleting, etc.
@@ -232,8 +233,11 @@
      *
      * @param cuj Should be an integer from {@link Cuj} or -1 if no CUJ needs to be logged for jank
      *            monitoring
+     * @param callback Called after the app pair launch finishes animating, or null if no method is
+     *                 to be called
      */
-    public void launchAppPair(AppPairIcon appPairIcon, int cuj) {
+    public void launchAppPair(AppPairIcon appPairIcon, int cuj,
+            @Nullable Consumer<Boolean> callback) {
         WorkspaceItemInfo app1 = appPairIcon.getInfo().getFirstApp();
         WorkspaceItemInfo app2 = appPairIcon.getInfo().getSecondApp();
         ComponentKey app1Key = new ComponentKey(app1.getTargetComponent(), app1.user);
@@ -273,12 +277,19 @@
                     mSplitSelectStateController.setLaunchingIconView(appPairIcon);
 
                     mSplitSelectStateController.launchSplitTasks(
-                            AppPairsController.convertRankToSnapPosition(app1.rank));
+                            AppPairsController.convertRankToSnapPosition(app1.rank), callback);
                 }
         );
     }
 
     /**
+     * Launches an app pair but does not specify a callback
+     */
+    public void launchAppPair(AppPairIcon appPairIcon, int cuj) {
+        launchAppPair(appPairIcon, cuj, null);
+    }
+
+    /**
      * Returns an AppInfo associated with the app for the given ComponentKey, or null if no such
      * package exists in the AllAppsStore.
      */