Math.abs(delta) < 10

src/pages/home/index.vue

@@ -443,7 +443,7 @@ export default {
       let delta = afterScrollTop - this.beforeScrollTop;
       let {showFlag} = this.$mp.page.selectComponent(".custom-tab-bar").data;
       if(
-        delta === 0 ||
+        Math.abs(delta) < 10 ||
         afterScrollTop < 0 ||
         this.beforeScrollTop < 0 || 
         (delta>0 && showFlag=='down') ||