问题:Vuetify Navigation Drawer 工作一次然后停止

我正在使用 Vuetify 导航抽屉。打开它的元素位于标题中的单独组件(v-toobar-side-icon)中。我将抽屉的打开/关闭状态存储在商店中。我正在使用计算方法来获取抽屉的状态。我不断收到错误消息

Computed property "drawerState" was assigned to but it has no setter.

我知道这是因为我必须使用v-model来控制抽屉的可见性。我不想使用计算的 setter 来更改抽屉的状态,我想使用 click 方法。

我尝试使用:value而不是v-model但我也无法让它正常工作。我遇到的实际问题是导航抽屉控件(打开/关闭)在主页上工作,但是一旦我导航到另一个页面,它们就会停止工作。如果我导航回主页,它们仍然无法工作。 getter 和 setter 正在更改状态并更新它们应该的方式,但导航抽屉的isActive属性保持false。

应用程序.vue

<template lang="pug">
  v-app
    app-NavDrawer
    app-header
    router-view
    v-footer(app dark)
      span &copy; 2018 #[a(href="http://www.smellydogcoding.com") Smellydog Coding]
</template>

<script>
  import Header from './components/header/Header.vue'
  import NavDrawer from './components/header/NavDrawer.vue'
  export default {
    data () {
      return {

      }
    },
    components: {
      appHeader: Header,
      appNavDrawer: NavDrawer
    }
  }
</script>

<style>
html {
  overflow-y: auto;
}
a {
  text-decoration: none;
}
 footer {
   color: white;
 }
</style>

头文件.vue

<template lang="pug">
  v-toolbar.mt-0(dark)
    v-toolbar-side-icon(@click.stop="openDrawer")
    router-link(to="/" tag="v-toolbar-title") Pool Math
</template>

<script>

export default {
  methods: {
    openDrawer() {
      this.$store.dispatch('navDrawer','open');
    }
  }
}
</script>

<style scoped>
  .toolbar__title {
    cursor: pointer;
  }
</style>

导航抽屉.vue

<template lang="pug">
  v-navigation-drawer(v-model="drawerState" dark fixed temporary)
    v-list.pa-1
      v-list-tile(avatar tag="div")
        v-list-tile-avatar
          img(src="../../../public/v.png")
        v-list-tile-content
          v-list-tile-title Guest
        v-list-tile-action
          v-btn(icon @click.stop="closeDrawer")
            v-icon close
    v-list.pt-0(dense)
      v-divider(light)
      router-link(to="/s1p0" tag="v-list-tile" active-class="active").expansion-panel__header.how-to
        v-list-tile-content
          v-list-tile-title.text-xs-center How to Use This Website
      v-expansion-panel
        v-expansion-panel-content
          div(slot="header") Section 1 - Conversions
          router-link(to="/s1p0" tag="v-list-tile" active-class="active")
            v-list-tile-content
              v-list-tile-title 1.0 - Useful Conversions
          router-link(to="/s1p1" tag="v-list-tile" active-class="active")
            v-list-tile-content
              v-list-tile-title 1.1 - Convert ounces to pounds
          router-link(to="/s1p2" tag="v-list-tile" active-class="active")
            v-list-tile-content
              v-list-tile-title 1.2 - Convert fluid ounces to gallons
          router-link(to="/s1p3" tag="v-list-tile" active-class="active")
            v-list-tile-content
              v-list-tile-title 1.3 - Convert fluid ounces to cups
          router-link(to="/s1p4" tag="v-list-tile" active-class="active")
            v-list-tile-content
              v-list-tile-title 1.4 - Convert inches to feet
        v-expansion-panel-content
          div(slot="header") Section 2 - Area and Volume
          router-link(to="/s2p0" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 2.0 - Introduction to This Section
          router-link(to="/s2p1" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 2.1 - Area of a Swimming Pool
          router-link(to="/s2p2" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 2.2 - Area of a Hot Tub
          router-link(to="/s2p3" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 2.3 - Volume of Water in a Swimming Pool
          router-link(to="/s2p4" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 2.4 - Volume of Water in a Multi-Depth Pool
          router-link(to="/s2p5" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 2.5 - Volume of Water in a Hot Tub
          router-link(to="/s2p6" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 2.6 - Volume of Water in a Hot Tub with Seats
          router-link(to="/s2p7" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 2.7 - Volume of Water Loss in a Swimming Pool
          router-link(to="/s2p8" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 2.8 - Volume of Water Loss in a Hot Tub
        v-expansion-panel-content
          div(slot="header") Section 3 - Water Balance
          router-link(to="/s3p0" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 3.0 - Introduction to This Section
          router-link(to="/s3p1" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 3.1 - Calculate Saturation Index
          router-link(to="/s3p2" tag="v-list-tile" active-class="active")
            v-list-tile-content
                v-list-tile-title 3.2 - Calculate Saturation Index - With CA
</template>

<script>
export default {
  computed: {
    drawerState() {
      return this.$store.getters.navDrawer; 
    }
  },
  methods: {
    closeDrawer() { this.$store.dispatch('navDrawer','close')}
  }
}
</script>

<style scoped>
  aside {
    overflow-y: auto;
  }
  .navigation-drawer {
    padding: 0 0 1.0rem;
  }
  .how-to {
    border-bottom: 1px solid rgba(255,255,255,0.12);
  }
  .how-to .list__tile__title {
    font-size: 1.15rem;
  }
</style>

store.js

import Vue from 'vue';
import Vuex from 'vuex';
import axios from 'axios';

Vue.use(Vuex);

export const store = new Vuex.Store({
  state: {
    drawer: false
  },
  getters: {  // send state to a component
    navDrawer: state => {
      return state.drawer
    }
  },
  mutations: { // modify state synchronously
    navDrawer: (state, command) => {
      command === 'open' ? state.drawer = true : state.drawer = false;
    }
  },
  actions: { // modify state aschronously
    navDrawer: ({commit}, command) => {
      commit('navDrawer', command)
    }
  }
});

解答

我能够通过将汉堡图标v-toolbar-side-icon从标题组件移动到导航抽屉组件来解决这个问题(尽管从技术上讲它是一种解决方法):

v-toolbar-side-icon(@click="drawer = !drawer") v-navigation-drawer(v-model="drawer" dark fixed temporary width="350")

因为打开和关闭按钮现在在同一个组件中,我可以使用

@click="drawer = !drawer"

切换导航抽屉的可见性。

托马斯·费罗:

我确实尝试了您的解决方案,并且通过一个小的修改它确实可以很好地工作:

methods: {
    updateDrawerState(state) {
      if (!state) { this.closeDrawer(); }
      else { this.openDrawer(); }
      console.log(state)
    },
    openDrawer() { this.$store.dispatch('navDrawer','open') },
    closeDrawer() { this.$store.dispatch('navDrawer','close') }
  }

当我尝试使用

updateDrawerState(state) {
  if (state) {
    this.closeDrawer();
  }
}

发生的情况是,当我单击汉堡时,导航抽屉将开始打开,然后立即关闭。我认为这是因为一旦你点击汉堡打开它就会改变状态并且每次状态改变都会关闭抽屉。通过检查状态,然后根据状态触发openDrawer或closeDrawer,一切都按预期工作。

感谢您建议:value等等,指出我需要听@input(我发现的关于:value的其他帖子没有提及。)非常感谢您!