From 6541b63515f7242953ced37593ca6c00a6f5a34d Mon Sep 17 00:00:00 2001
From: BugkingK <myway0710@naver.com>
Date: Thu, 27 Aug 2020 09:50:06 +0900
Subject: [PATCH] Modify the bug where "nextIndex" is -1 when "currentIndex" is
 0.

---
 Trident/MenuView.swift | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Trident/MenuView.swift b/Trident/MenuView.swift
index ce665a5..564c602 100644
--- a/Trident/MenuView.swift
+++ b/Trident/MenuView.swift
@@ -242,8 +242,12 @@ public class TridentMenuView: UIView {
                 , currentIndex >= 0 else {
                 return
             }
-            nextIndex = currentIndex == titles.count - 1 ? currentIndex - 1 : currentIndex + 1
-//            nextIndex = min(currentIndex + 1, titles.count - 1)
+            if currentIndex == titles.count - 1 {
+                let next = currentIndex - 1
+                nextIndex = next > 0 ? next : 0
+            } else {
+                nextIndex = currentIndex + 1
+            }
             currentLabel = menuItemViews[currentIndex]
         }
     }