Vue仿今日头条实例详解

{
  path: '/development',
  name: 'development',
  component: (resolve) => {
    require(['../views/development.vue'], resolve)
  }
}

const _import_ = file => () => import('views/' + file + '.vue')

{
  path: '/development',
  name: 'development',
  component: _import_('development')
}

// 如：系统设置需要登陆
{ 
  path: '/system', 
  name: '系统设置', 
  meta: { 
    login: true
  },
  component: _import_('System/index')
}

router.beforeEach((to, from, next) => {
  if (to.meta.login) { //判断前往的界面是否需要登陆
    if (store.state.user.user.name) { // 是否已经登陆
      next()
    }else{
      Vue.prototype.$alert('请先登录!')
        .then( () => {
          store.state.user.isLogin = true
        })
    }
  }else{
    if (to.meta.page) store.state.app.pageLoading = true
    next() 
  }
  
})

Router.prototype.animate = 0

// 获取每个路由meta上面的slide 来判断它做什么动画
{ 
  path: '/system', 
  name: '系统设置', 
  meta: { 
    slide: 1 
  },
  component: _import_('System/index')
}


watch: {
  $route (to, from) {
    /*
    0: 不做动画
    1: 左切换
    2: 右切换
    3: 上切换
    4: 下切换
    ...
     */
    let animate = this.$router.animate || to.meta.slide
    if (!animate) {
      this.animate = '' 
    }else{
      this.animate = animate === 1 ? 'slide-left' :
        animate === 2 ? 'slide-right' :
        animate === 3 ? 'slide-top' :
        animate === 4 ? 'slide-bottom' : ''
    }
    this.$router.animate = 0
  }
}