頁面切換,默認顯示頂部是一個在移動端很常見的功能。整理了三個現實方法如下:
方法一:在路由配置中使用scrollBehavior
使用前端路由,當切換到新路由時,想要頁面滾到頂部,或者是保持原先的滾動位置,就像重新加載頁面那樣。
vue-router 能做到,而且更好,它讓你可以自定義路由切換時頁面如何滾動。
在路由配置中使用scrollBehavior
scrollBehavior (to, from, savedPosition) { if (savedPosition) { return savedPosition } else { return { x: 0, y: 0 } } }
如下例子, 使得每次進入頁面都在頁面頂部。
import Vue from 'vue'import Router from 'vue-router'import {wechatAuth,wechatOauth} from '@/utils/auth.js'import store from '@/store'Vue.use(Router) const routes = { mode: 'hash', routes: [ { path: '/', redirect: '/introduce' }, { path: '/introduce', name:'introduce', component: () => import('@/pages/introduce') }, { path: '/register', component: () => import('@/pages/register') }, /* { path: '/auth', component: () => import('@/pages/auth') }, */ { path: '/businessCard', component: () => import('@/pages/businessCard') }, { path: '/category', component: () => import('@/pages/category') }, { path: '/index', name:'index', component: () => import('@/pages/index') }, { path: '/orderList', name:'orderList', component: () => import('@/pages/orderList') }, { path: '/orderDetail', name:'orderDetail', component: () => import('@/pages/orderDetail') }, { path: '/acceptOrder', name:'acceptOrder', component: () => import('@/pages/acceptOrder') }, { path: '/feedBackDetail', name:'feedBackDetail', component: () => import('@/pages/feedBackDetail') }, ], scrollBehavior (to, from, savedPosition) { if (savedPosition) { return savedPosition } else { return { x: 0, y: 0 } } }} const route = new Router( routes ) route.beforeEach((to, from, next) => { //獲取當前頁面鏈接進入路由簽名 let link = route.resolve({ path: window.location.href }) //判斷有沒有code if(link.href.includes('/?code')){ let {code} = link.route.query let uri = to.fullPath wechatOauth(code,uri) }else{ //沒有code再進入判斷有沒有用戶資料 if(store.state.userInfo.userId === null){ //用戶數據初始化請求 store.dispatch('getUserData').then(res => { //這裡是已授權 //已授權進入正常的判斷跳轉流程 //獲取用戶id及綁定手機號碼 let {userId,regTel} = res if(userId == -1){ //判斷用戶是否關注了公眾號 next('/introduce') }else{ //判斷有沒有綁定手機號碼 if(regTel == ''){ next('/register') }else{ //這裡是請求到用戶資料進入的正常流程 next() } } }).catch(err => { //這裡是未授權 //未授權就請求微信接口進行授權 wechatAuth(to.fullPath) }) }else{ //這裡是沒有問題進入的正常流程 next() } } }) export default route
方法二:vue裡面寫法如下,至於updated生命週期裡面
updated() { window.scroll(0, 0); }
方法三:router攔截控制
//路由跳轉後,頁面回到頂部router.afterEach(() => { document.body.scrollTop = 0; document.documentElement.scrollTop = 0; })