From d58b65cd31531445dd2dd53ae3135a9a85149d8f Mon Sep 17 00:00:00 2001
From: Evan Rosky <erosky@google.com>
Date: Wed, 18 Apr 2018 15:00:45 -0700
Subject: [PATCH] Don't crash during layout of non-attached but focused view

Verifies that there is a viewrootimpl before calling its
methods.

Bug: 77193567
Test: N/A
Change-Id: I301c3aede3d0f7e1d2abf6fe5bb3d852f697577b
---
 core/java/android/view/View.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/java/android/view/View.java b/core/java/android/view/View.java
index 71b60844b17dd..6b16d42ac7ef8 100644
--- a/core/java/android/view/View.java
+++ b/core/java/android/view/View.java
@@ -20700,7 +20700,7 @@ public class View implements Drawable.Callback, KeyEvent.Callback,
             if (canTakeFocus()) {
                 // We have a robust focus, so parents should no longer be wanting focus.
                 clearParentsWantFocus();
-            } else if (!getViewRootImpl().isInLayout()) {
+            } else if (getViewRootImpl() == null || !getViewRootImpl().isInLayout()) {
                 // This is a weird case. Most-likely the user, rather than ViewRootImpl, called
                 // layout. In this case, there's no guarantee that parent layouts will be evaluated
                 // and thus the safest action is to clear focus here.