From 7794a00407e6634fbfa09a5e8d36908440ca7c66 Mon Sep 17 00:00:00 2001
From: Adrian Roos <roosa@google.com>
Date: Wed, 29 Apr 2020 17:13:57 +0200
Subject: [PATCH] WindowInsetsController: make available after addView

Fixes an issue where the WindowInsetsController was only available after
the first traversal.

Bug: 155280356
Test: atest WindowInsetsControllerTests
Change-Id: I225efcaa31e97da9e8ebc6bd7d24c433c8e80826
---
 core/java/android/view/View.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index f98c1f660cfa0..310299910e960 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -11519,6 +11519,9 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
         ViewParent parent = getParent();
         if (parent instanceof View) {
             return ((View) parent).getWindowInsetsController();
+        } else if (parent instanceof ViewRootImpl) {
+            // Between WindowManager.addView() and the first traversal AttachInfo isn't set yet.
+            return ((ViewRootImpl) parent).getInsetsController();
         }
         return null;
     }