Release the content views when we mark a notification UNINFLATED.

Fixes: 215700025
Test: manual
Change-Id: Ibd5530ca1085dfa459d1b7c919d41156a16db452

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/NotifInflaterImpl.java

@@ -79,6 +79,11 @@ public class NotifInflaterImpl implements NotifInflater {
         entry.abortTask();
     }
 
+    @Override
+    public void releaseViews(@NonNull NotificationEntry entry) {
+        requireBinder().releaseViews(entry);
+    }
+
     private NotificationContentInflater.InflationCallback wrapInflationCallback(
             InflationCallback callback) {
         return new NotificationContentInflater.InflationCallback() {

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/coordinator/PreparationCoordinator.java

@@ -375,6 +375,7 @@ public class PreparationCoordinator implements Coordinator {
 
     private void freeNotifViews(NotificationEntry entry) {
         mViewBarn.removeViewForEntry(entry);
+        mNotifInflater.releaseViews(entry);
         // TODO: clear the entry's row here, or even better, stop setting the row on the entry!
         mInflationStates.put(entry, STATE_UNINFLATED);
     }

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/inflation/NotifInflater.kt

@@ -46,6 +46,11 @@ interface NotifInflater {
      */
     fun abortInflation(entry: NotificationEntry)
 
+    /**
+     * Called to let the system remove the content views from the notification row.
+     */
+    fun releaseViews(entry: NotificationEntry)
+
     /**
      * Callback once all the views are inflated and bound for a given NotificationEntry.
      */

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/inflation/NotificationRowBinder.java

@@ -50,4 +50,9 @@ public interface NotificationRowBinder {
             NotificationUiAdjustment oldAdjustment,
             NotificationUiAdjustment newAdjustment,
             NotificationRowContentBinder.InflationCallback callback);
+
+    /**
+     * Called when a notification is no longer likely to be displayed and can have its views freed.
+     */
+    void releaseViews(NotificationEntry entry);
 }

packages/SystemUI/src/com/android/systemui/statusbar/notification/collection/inflation/NotificationRowBinderImpl.java

@@ -16,6 +16,8 @@
 
 package com.android.systemui.statusbar.notification.collection.inflation;
 
+import static com.android.systemui.statusbar.notification.row.NotificationRowContentBinder.FLAG_CONTENT_VIEW_CONTRACTED;
+import static com.android.systemui.statusbar.notification.row.NotificationRowContentBinder.FLAG_CONTENT_VIEW_EXPANDED;
 import static com.android.systemui.statusbar.notification.row.NotificationRowContentBinder.FLAG_CONTENT_VIEW_PUBLIC;
 
 import static java.util.Objects.requireNonNull;
@@ -161,6 +163,18 @@ public class NotificationRowBinderImpl implements NotificationRowBinder {
         }
     }
 
+    @Override
+    public void releaseViews(NotificationEntry entry) {
+        if (!entry.rowExists()) {
+            return;
+        }
+        final RowContentBindParams params = mRowContentBindStage.getStageParams(entry);
+        params.markContentViewsFreeable(FLAG_CONTENT_VIEW_CONTRACTED);
+        params.markContentViewsFreeable(FLAG_CONTENT_VIEW_EXPANDED);
+        params.markContentViewsFreeable(FLAG_CONTENT_VIEW_PUBLIC);
+        mRowContentBindStage.requestRebind(entry, null);
+    }
+
     /**
      * Bind row to various controllers and managers. This is only called when the row is first
      * created.
@@ -249,6 +263,8 @@ public class NotificationRowBinderImpl implements NotificationRowBinder {
         }
 
         RowContentBindParams params = mRowContentBindStage.getStageParams(entry);
+        params.requireContentViews(FLAG_CONTENT_VIEW_CONTRACTED);
+        params.requireContentViews(FLAG_CONTENT_VIEW_EXPANDED);
         params.setUseIncreasedCollapsedHeight(useIncreasedCollapsedHeight);
         params.setUseLowPriority(isLowPriority);
         boolean needsRedaction =

packages/SystemUI/tests/src/com/android/systemui/statusbar/notification/collection/coordinator/PreparationCoordinatorTest.java

@@ -446,6 +446,7 @@ public class PreparationCoordinatorTest extends SysuiTestCase {
             mInflateCallbacks.put(entry, callback);
         }
 
+
         @Override
         public void rebindViews(@NonNull NotificationEntry entry, @NonNull Params params,
                 @NonNull InflationCallback callback) {
@@ -462,6 +463,10 @@ public class PreparationCoordinatorTest extends SysuiTestCase {
         public void invokeInflateCallbackForEntry(NotificationEntry entry) {
             getInflateCallback(entry).onInflationFinished(entry, entry.getRowController());
         }
+
+        @Override
+        public void releaseViews(@NonNull NotificationEntry entry) {
+        }
     }
 
     private void fireAddEvents(List<? extends ListEntry> entries) {