From e9cbc39daa7c9ab289ebd4e92e5afb488f9448a8 Mon Sep 17 00:00:00 2001
From: dongsug-song <35130733+dongsug-song@users.noreply.github.com>
Date: Fri, 13 Dec 2019 12:17:37 +0900
Subject: [PATCH] [NUI] Fix ICustomFocusAlgorithm exception (#1182)

---
 src/Tizen.NUI/src/public/FocusManager.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Tizen.NUI/src/public/FocusManager.cs b/src/Tizen.NUI/src/public/FocusManager.cs
index f6827c5..6bc6d1f 100755
--- a/src/Tizen.NUI/src/public/FocusManager.cs
+++ b/src/Tizen.NUI/src/public/FocusManager.cs
@@ -775,6 +775,11 @@ namespace Tizen.NUI
 
             public override View GetNextFocusableView(View current, View proposed, View.FocusDirection direction)
             {
+                if(_customFocusAlgorithm == null)
+                {
+                    Tizen.Log.Error("NUI", $"[ERROR] User defined ICustomFocusAlgorithm interface class becomes unreachable. Null will be proposed for next focusing!");
+                    return null;
+                }
                 return _customFocusAlgorithm.GetNextFocusableView(current, proposed, direction);
             }
         }
-- 
2.7.4