From 871f34fca3ab708947b8d85967e48c1d5eda25e3 Mon Sep 17 00:00:00 2001
From: laiiihz <laiiihz@outlook.com>
Date: Mon, 1 Mar 2021 13:30:51 +0800
Subject: [PATCH] fix sepWidget extension when list empty

---
 lib/extension/list_extension.dart | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/extension/list_extension.dart b/lib/extension/list_extension.dart
index 4756bf3..f0dc735 100644
--- a/lib/extension/list_extension.dart
+++ b/lib/extension/list_extension.dart
@@ -3,6 +3,8 @@ import 'package:ansu_ui/extension/num_extension.dart';
 
 extension SeparateExt on List<Widget> {
   List<Widget> sepWidget({Widget separate}) {
+    if (this == null) return null;
+    if (this.isEmpty) return [];
     return List.generate(this.length * 2 - 1, (index) {
       if (index.isEven)
         return this[index ~/ 2];