From b36b1a4690ead1975157263f5d6efc6ab8e75662 Mon Sep 17 00:00:00 2001
From: Kobi <Kobi@fanruan.com>
Date: Sun, 15 May 2022 20:20:32 +0800
Subject: [PATCH] =?UTF-8?q?=E6=97=A0JIRA=E4=BB=BB=E5=8A=A1=20=E8=B7=AF?=
 =?UTF-8?q?=E7=94=B1=E9=97=AE=E9=A2=98?=
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---
 src/router/router.js | 38 +++++++++++++++++++++-----------------
 1 file changed, 21 insertions(+), 17 deletions(-)

diff --git a/src/router/router.js b/src/router/router.js
index 7a44bb5d9..25dbabc44 100644
--- a/src/router/router.js
+++ b/src/router/router.js
@@ -3155,24 +3155,27 @@
       },
       created: function () {
         var self = this, o = this.options;
-        cbs.push(this._callbackListener = function () {
-          var current = $router.history.current;
-          // 匹配的路径名(/component/:id)
-          var matchedPath = current.matched[o.deps] && current.matched[o.deps].path;
-          var component = current.matched[o.deps] && current.matched[o.deps].components[o.name];
-  
-          if (BI.isNotNull(component)) {
-            if (matchedPath) {
-              BI.each(current.params, function (key, value) {
-                // 把  :id  替换成具体的值(/component/demo.td)
-                matchedPath = matchedPath.replace(`:${key}`, value);
-              });
+        // 嵌套路由 + single 下父亲执行setSelect后会执行一遍push + _callbackListener，之后在cbs.forEach下会执行到刚push进去的_callbackListener导致执行两次，这里加一个nextTick让forEach走不到新push进去的方法。
+        BI.nextTick(function () {
+          cbs.push(self._callbackListener = function () {
+            var current = $router.history.current;
+            // 匹配的路径名(/component/:id)
+            var matchedPath = current.matched[o.deps] && current.matched[o.deps].path;
+            var component = current.matched[o.deps] && current.matched[o.deps].components[o.name];
+
+            if (BI.isNotNull(component)) {
+              if (matchedPath) {
+                BI.each(current.params, function (key, value) {
+                  // 把  :id  替换成具体的值(/component/demo.td)
+                  matchedPath = matchedPath.replace(`:${key}`, value);
+                });
+              }
+              self.tab.setSelect(matchedPath || "/");
             }
-            self.tab.setSelect(matchedPath || "/");
-          }
+          });
+          // "bi.router_view"是由"bi.tab"实现的，cardCreator是一个异步过程，在"bi.router_view"创建之前，cbs里不会有创建子组件的方法，在初始化路由时，没法直接渲染到子组件，所以这里手动加了一次调用
+          self._callbackListener();
         });
-        // "bi.router_view"是由"bi.tab"实现的，cardCreator是一个异步过程，在"bi.router_view"创建之前，cbs里不会有创建子组件的方法，在初始化路由时，没法直接渲染到子组件，所以这里手动加了一次调用
-        this._callbackListener();
       },
       render: function () {
         var self = this, o = this.options;
@@ -3193,7 +3196,8 @@
         };
       },
       destroyed: function () {
-        BI.remove(cbs, this._callbackListener);
+        // BI.remove方法会把第二个参数当迭代器执行导致方法多执行一遍
+        cbs.splice(cbs.indexOf(this._callbackListener), 1);
       }
     });
     BI.shortcut("bi.router_view", BI.RouterView);