From 6e780fdc672e59fc7bc84d5b7963b1fb9cc68830 Mon Sep 17 00:00:00 2001
From: Niko Yuwono <1751188+NikoYuwono@users.noreply.github.com>
Date: Wed, 15 Aug 2018 03:45:45 +0900
Subject: [PATCH] Add NSNull check in setSystemChromeSystemUIOverlayStyle
 (#6011)

---
 .../darwin/ios/framework/Source/FlutterPlatformPlugin.mm       | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/shell/platform/darwin/ios/framework/Source/FlutterPlatformPlugin.mm b/shell/platform/darwin/ios/framework/Source/FlutterPlatformPlugin.mm
index 4508599757a..445cbc3945d 100644
--- a/shell/platform/darwin/ios/framework/Source/FlutterPlatformPlugin.mm
+++ b/shell/platform/darwin/ios/framework/Source/FlutterPlatformPlugin.mm
@@ -140,6 +140,9 @@ using namespace shell;
 
 - (void)setSystemChromeSystemUIOverlayStyle:(NSDictionary*)message {
   NSString* style = message[@"statusBarBrightness"];
+  if (style == (id)[NSNull null])
+    return;
+
   UIStatusBarStyle statusBarStyle;
   if ([style isEqualToString:@"Brightness.dark"])
     statusBarStyle = UIStatusBarStyleLightContent;