Move splitInstructionsView reference out of RecentsView

* Consolidate it to be same object as workspace
SplitInstructionsView

Bug: 276361926
Test: Created split from home and overview, disapears
on exit or success as expected

Change-Id: I837a7c37fb4d1a39c13fe0d66b2e3ecefedef2df
diff --git a/quickstep/src/com/android/quickstep/util/SplitAnimationController.kt b/quickstep/src/com/android/quickstep/util/SplitAnimationController.kt
index bcb9cec..c3774eb 100644
--- a/quickstep/src/com/android/quickstep/util/SplitAnimationController.kt
+++ b/quickstep/src/com/android/quickstep/util/SplitAnimationController.kt
@@ -60,8 +60,6 @@
         )
     }
 
-    var splitInstructionsView: SplitInstructionsView? = null
-
     /**
      * Returns different elements to animate for the initial split selection animation
      * depending on the state of the surface from which the split was initiated
@@ -235,7 +233,8 @@
         animatorSet.addListener(object : AnimatorListenerAdapter() {
             override fun onAnimationEnd(animation: Animator) {
                 splitSelectStateController.resetState()
-                safeRemoveViewFromDragLayer(launcher, splitInstructionsView)
+                safeRemoveViewFromDragLayer(launcher,
+                        splitSelectStateController.splitInstructionsView)
             }
         })
         return animatorSet
@@ -246,8 +245,9 @@
      * app for splitscreen
      */
     fun getShowSplitInstructionsAnim(launcher: StatefulActivity<*>) : PendingAnimation {
-        safeRemoveViewFromDragLayer(launcher, splitInstructionsView)
-        splitInstructionsView = SplitInstructionsView.getSplitInstructionsView(launcher)
+        safeRemoveViewFromDragLayer(launcher, splitSelectStateController.splitInstructionsView)
+        val splitInstructionsView = SplitInstructionsView.getSplitInstructionsView(launcher)
+        splitSelectStateController.splitInstructionsView = splitInstructionsView
         val timings = AnimUtils.getDeviceOverviewToSplitTimings(launcher.deviceProfile.isTablet)
         val anim = PendingAnimation(100 /*duration */)
         anim.setViewAlpha(splitInstructionsView, 1f,
@@ -267,7 +267,7 @@
 
     /** Removes the split instructions view from [launcher] drag layer. */
     fun removeSplitInstructionsView(launcher: StatefulActivity<*>) {
-        safeRemoveViewFromDragLayer(launcher, splitInstructionsView)
+        safeRemoveViewFromDragLayer(launcher, splitSelectStateController.splitInstructionsView)
     }
 
     private fun safeRemoveViewFromDragLayer(launcher: StatefulActivity<*>, view: View?) {
diff --git a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
index 7ba6d42..f976887 100644
--- a/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
+++ b/quickstep/src/com/android/quickstep/util/SplitSelectStateController.java
@@ -73,6 +73,7 @@
 import com.android.quickstep.TaskViewUtils;
 import com.android.quickstep.views.FloatingTaskView;
 import com.android.quickstep.views.GroupedTaskView;
+import com.android.quickstep.views.SplitInstructionsView;
 import com.android.systemui.shared.recents.model.Task;
 import com.android.systemui.shared.system.RemoteAnimationRunnerCompat;
 
@@ -112,6 +113,7 @@
     private GroupedTaskView mLaunchingTaskView;
 
     private FloatingTaskView mFirstFloatingTaskView;
+    private SplitInstructionsView mSplitInstructionsView;
 
     private final List<SplitSelectionListener> mSplitSelectionListeners = new ArrayList<>();
 
@@ -612,6 +614,7 @@
         mAnimateCurrentTaskDismissal = false;
         mDismissingFromSplitPair = false;
         mFirstFloatingTaskView = null;
+        mSplitInstructionsView = null;
     }
 
     /**
@@ -642,11 +645,20 @@
         mFirstFloatingTaskView = floatingTaskView;
     }
 
+    public void setSplitInstructionsView(SplitInstructionsView splitInstructionsView) {
+        mSplitInstructionsView = splitInstructionsView;
+    }
+
     @Nullable
     public FloatingTaskView getFirstFloatingTaskView() {
         return mFirstFloatingTaskView;
     }
 
+    @Nullable
+    public SplitInstructionsView getSplitInstructionsView() {
+        return mSplitInstructionsView;
+    }
+
     public AppPairsController getAppPairsController() {
         return mAppPairsController;
     }
diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 29d9fa6..d580178 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -683,8 +683,6 @@
     private final Toast mSplitUnsupportedToast = Toast.makeText(getContext(),
             R.string.toast_split_app_unsupported, Toast.LENGTH_SHORT);
 
-    private SplitInstructionsView mSplitInstructionsView;
-
     @Nullable
     private SplitSelectSource mSplitSelectSource;
 
@@ -3252,19 +3250,21 @@
         firstFloatingTaskView.setOnClickListener(this::animateToFullscreen);
 
         // SplitInstructionsView: animate in
-        safeRemoveDragLayerView(mSplitInstructionsView);
-        mSplitInstructionsView = SplitInstructionsView.getSplitInstructionsView(mActivity);
-        mSplitInstructionsView.setAlpha(0);
-        anim.setViewAlpha(mSplitInstructionsView, 1, clampToProgress(LINEAR,
+        safeRemoveDragLayerView(mSplitSelectStateController.getSplitInstructionsView());
+        SplitInstructionsView splitInstructionsView =
+                SplitInstructionsView.getSplitInstructionsView(mActivity);
+        splitInstructionsView.setAlpha(0);
+        anim.setViewAlpha(splitInstructionsView, 1, clampToProgress(LINEAR,
                 timings.getInstructionsContainerFadeInStartOffset(),
                 timings.getInstructionsContainerFadeInEndOffset()));
-        anim.setViewAlpha(mSplitInstructionsView.getTextView(), 1, clampToProgress(LINEAR,
+        anim.setViewAlpha(splitInstructionsView.getTextView(), 1, clampToProgress(LINEAR,
                 timings.getInstructionsTextFadeInStartOffset(),
                 timings.getInstructionsTextFadeInEndOffset()));
-        anim.addFloat(mSplitInstructionsView, mSplitInstructionsView.UNFOLD, 0.1f, 1,
+        anim.addFloat(splitInstructionsView, splitInstructionsView.UNFOLD, 0.1f, 1,
                 clampToProgress(EMPHASIZED_DECELERATE,
                         timings.getInstructionsUnfoldStartOffset(),
                         timings.getInstructionsUnfoldEndOffset()));
+        mSplitSelectStateController.setSplitInstructionsView(splitInstructionsView);
 
         InteractionJankMonitorWrapper.begin(this,
                 InteractionJankMonitorWrapper.CUJ_SPLIT_SCREEN_ENTER, "First tile selected");
@@ -4781,9 +4781,9 @@
         mSecondFloatingTaskView.addConfirmAnimation(pendingAnimation, secondTaskStartingBounds,
                 secondTaskEndingBounds, true /* fadeWithThumbnail */, false /* isStagedTask */);
 
-        pendingAnimation.setViewAlpha(mSplitInstructionsView, 0, clampToProgress(LINEAR,
-                timings.getInstructionsFadeStartOffset(),
-                timings.getInstructionsFadeEndOffset()));
+        pendingAnimation.setViewAlpha(mSplitSelectStateController.getSplitInstructionsView(), 0,
+                clampToProgress(LINEAR, timings.getInstructionsFadeStartOffset(),
+                        timings.getInstructionsFadeEndOffset()));
 
         pendingAnimation.addEndListener(aBoolean -> {
             mSplitSelectStateController.launchSplitTasks(
@@ -4819,9 +4819,8 @@
                 FeatureFlags.ENABLE_SPLIT_FROM_WORKSPACE_TO_WORKSPACE.get()) {
             safeRemoveDragLayerView(mSplitSelectStateController.getFirstFloatingTaskView());
             safeRemoveDragLayerView(mSecondFloatingTaskView);
-            safeRemoveDragLayerView(mSplitInstructionsView);
+            safeRemoveDragLayerView(mSplitSelectStateController.getSplitInstructionsView());
             mSecondFloatingTaskView = null;
-            mSplitInstructionsView = null;
             mSplitSelectSource = null;
             mSplitSelectStateController.getSplitAnimationController()
                     .removeSplitInstructionsView(mActivity);
@@ -4921,8 +4920,8 @@
         taskViewsFloat.first.set(this, getSplitSelectTranslation());
         taskViewsFloat.second.set(this, 0f);
 
-        if (mSplitInstructionsView != null) {
-            mSplitInstructionsView.ensureProperRotation();
+        if (mSplitSelectStateController.getSplitInstructionsView() != null) {
+            mSplitSelectStateController.getSplitInstructionsView().ensureProperRotation();
         }
     }
 
@@ -6039,7 +6038,7 @@
 
     @Nullable
     public SplitInstructionsView getSplitInstructionsView() {
-        return mSplitInstructionsView;
+        return mSplitSelectStateController.getSplitInstructionsView();
     }
 
     /** Update the current activity locus id to show the enabled state of Overview */