From 2b7cb46ddb42daba5b040c774f38efcb272ca977 Mon Sep 17 00:00:00 2001
From: Adam Comella <rigdern@users.noreply.github.com>
Date: Thu, 17 Aug 2017 23:36:58 -0700
Subject: [PATCH] iOS: Fix registration for
 UIContentSizeCategoryDidChangeNotification

Summary:
On an iPhone running iOS 10.3.3, I'm not seeing the UIContentSizeCategoryDidChangeNotification fire when changing the system's font scale setting. Registering for the event on `nil` instead of on the application object fixes the issue.

**Test Plan**

Verified that text in an RN app changes size when you change the system's font scale setting (Settings -> General -> Accessibility -> Larger Text). By default, RN text is supposed to scale with the system setting.

Adam Comella
Microsoft Corp.
Closes https://github.com/facebook/react-native/pull/15522

Differential Revision: D5657449

Pulled By: shergin

fbshipit-source-id: d7a6a730c5cd6eb3833274a1f2029663ad3a7ad2
---
 React/Modules/RCTAccessibilityManager.m | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/React/Modules/RCTAccessibilityManager.m b/React/Modules/RCTAccessibilityManager.m
index a7633a64da..409e9792f9 100644
--- a/React/Modules/RCTAccessibilityManager.m
+++ b/React/Modules/RCTAccessibilityManager.m
@@ -65,7 +65,7 @@ RCT_EXPORT_MODULE()
     [[NSNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(didReceiveNewContentSizeCategory:)
                                                  name:UIContentSizeCategoryDidChangeNotification
-                                               object:RCTSharedApplication()];
+                                               object:nil];
 
     [[NSNotificationCenter defaultCenter] addObserver:self
                                              selector:@selector(didReceiveNewVoiceOverStatus:)