Fix WindowInsetsController lifecycle

Provide a recording insets controller before the window gets
created, and replay the commands once a view gets attached. This
allows the client to use the controller in Activity.onCreate.

Test: WindowInsetsControllerTests
Bug: 118118435
Change-Id: I1a825ecc4367c02b27f2d08cd5442325315d4f89

1 files changed, 8 insertions, 0 deletions

diff --git a/core/java/android/view/ViewRootImpl.java b/core/java/android/view/ViewRootImpl.java
index 4de1c969057d..229143a71d57 100644
--- a/core/java/android/view/ViewRootImpl.java
+++ b/core/java/android/view/ViewRootImpl.java
@@ -1117,6 +1117,14 @@ public final class ViewRootImpl implements ViewParent,
                 mFirstInputStage = nativePreImeStage;
                 mFirstPostImeInputStage = earlyPostImeStage;
                 mPendingInputEventQueueLengthCounterName = "aq:pending:" + counterSuffix;
+
+                if (mView instanceof RootViewSurfaceTaker) {
+                    PendingInsetsController pendingInsetsController =
+                            ((RootViewSurfaceTaker) mView).providePendingInsetsController();
+                    if (pendingInsetsController != null) {
+                        pendingInsetsController.replayAndAttach(mInsetsController);
+                    }
+                }
             }
         }
     }