From 51cb389ef9e7581ad388ffd320b158bed21cb42c Mon Sep 17 00:00:00 2001
From: chenjiahan <chenjiahan@youzan.com>
Date: Sun, 27 Dec 2020 20:16:25 +0800
Subject: [PATCH] fix(Swipe): incorrect active swipe when children changed
 #7802

---
 src/swipe/index.js | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/src/swipe/index.js b/src/swipe/index.js
index 16ca44058..0d0fa213d 100644
--- a/src/swipe/index.js
+++ b/src/swipe/index.js
@@ -258,7 +258,7 @@ export default createComponent({
     };
 
     const resize = () => {
-      initialize(activeIndicator.value);
+      initialize(state.active);
     };
 
     let touchStartTime;
@@ -377,9 +377,14 @@ export default createComponent({
 
     linkChildren({ size, props, count, activeIndicator });
 
-    watch([() => children.length, () => props.initialSwipe], () => {
-      initialize();
-    });
+    watch(() => props.initialSwipe, initialize);
+    watch(
+      () => children.length,
+      () => {
+        const active = Math.min(children.length - 1, state.active);
+        initialize(active);
+      }
+    );
 
     watch(
       () => props.autoplay,