From 49ef4adad32767ee70da43e47e8df4ecdbfd028a Mon Sep 17 00:00:00 2001
From: KyleWong <kangwang1988@users.noreply.github.com>
Date: Thu, 13 Sep 2018 12:08:01 +0800
Subject: [PATCH] Fix a crash when UILaunchStoryboardName is not specified in
 Info.plist (#6234)

Some developers might prefer launch images.
---
 .../darwin/ios/framework/Source/FlutterViewController.mm       | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/shell/platform/darwin/ios/framework/Source/FlutterViewController.mm b/shell/platform/darwin/ios/framework/Source/FlutterViewController.mm
index 26c8ffc3284..f90d2862eaf 100644
--- a/shell/platform/darwin/ios/framework/Source/FlutterViewController.mm
+++ b/shell/platform/darwin/ios/framework/Source/FlutterViewController.mm
@@ -392,6 +392,9 @@
   if (_splashScreenView == nullptr) {
     NSString* launchStoryboardName =
         [[[NSBundle mainBundle] infoDictionary] objectForKey:@"UILaunchStoryboardName"];
+    if (launchStoryboardName == nil) {
+      return nil;
+    }
     UIStoryboard* storyboard = [UIStoryboard storyboardWithName:launchStoryboardName bundle:nil];
     if (storyboard == nil) {
       return nil;