mounted->beforeMount

src/assets/js/setBarHeight.js

 const setBarHeight = {
-    mounted() {
+    beforeMount() {
         const barHeight = localStorage.getItem('barHeight');
         const conHeight = 46 + barHeight;
         console.log('mixins barHeight=', barHeight);

src/views/More/index.vue

@@ -53,13 +53,13 @@
 import { NavBar, Icon } from "vant";
 import { TabHeader } from "@/components";
 import { mapActions } from "vuex";
-//import setBarHeight from "../../assets/js/setBarHeight.js";
+import setBarHeight from "../../assets/js/setBarHeight.js";
 export default {
   components: {
     [Icon.name]: Icon,
     TabHeader
   },
-  // mixins: [setBarHeight],
+  mixins: [setBarHeight],
   data() {
     return {
       title: "",