v-menu 的 Vuetify 问题 [英] Vuetify issue with v-menu

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问题描述

Vuetify 1.1.8/Vue 2.5.16

我不明白为什么我有两种不同的行为:

1- 在 Codepen.io 中测试

html

 
<v-app id="inspire"><div class="text-xs-center"><v-菜单偏移-y><v-btn插槽 =激活器"颜色=主要"黑暗的><span v-if="this.locale === 'en'">英语</span><span v-if="this.locale === 'fr'">Français</span><span v-if="this.locale === 'br'">葡萄牙语</span></v-btn><v-list><v-list-tilev-for="(locale, index) in locales":key="索引"@click="switchLocale(index)"><v-list-tile-title>{{locale.title }}</v-list-tile-title></v-list-tile></v-list></v-菜单>
</v-app>

js

 new Vue({el: '#app',数据:() =>({语言环境: 'en',语言环境:[{ locale: 'en', title: 'English', icon: '@/assets/images/flag_gb_24.png' },{ locale: 'fr', title: 'Français', icon: '@/assets/images/flag_fr_24.png' },{ locale: 'br', title: 'Português', icon: '@/assets/images/flag_br_24.png' }]}),方法: {switchLocale:函数(索引){console.log('切换语言环境:', this.locales[index].title)this.locale = this.locales[index].locale}}})

运行良好...

但是一旦我将它插入到我的应用程序中的 Vue.js 组件中，我就会收到一个错误:

控制台

 vuetify.js?ce5b:19387 [Vuetify] 无法定位目标 [data-app]在发现---><VMenu><VToolbar><工具栏><应用程序>在 src/App.vue<根>consoleWarn @ vuetify.js?ce5b:19387initDetach @ vuetify.js?ce5b:16782挂载@ vuetify.js?ce5b:16742callHook @ vue.runtime.esm.js?2b0e:2917插入@ vue.runtime.esm.js?2b0e:4154invokeInsertHook @ vue.runtime.esm.js?2b0e:5956补丁@ vue.runtime.esm.js?2b0e:6175Vue._update @ vue.runtime.esm.js?2b0e:2666updateComponent @ vue.runtime.esm.js?2b0e:2784获取@vue.runtime.esm.js?2b0e:3138运行@ vue.runtime.esm.js?2b0e:3215flushSchedulerQueue @ vue.runtime.esm.js?2b0e:2977(匿名)@vue.runtime.esm.js?2b0e:1833flushCallbacks @ vue.runtime.esm.js?2b0e:1754Promise.then(异步)microTimerFunc @ vue.runtime.esm.js?2b0e:1802nextTick @ vue.runtime.esm.js?2b0e:1846queueWatcher @ vue.runtime.esm.js?2b0e:3064更新@ vue.runtime.esm.js?2b0e:3205Vue.$forceUpdate @ vue.runtime.esm.js?2b0e:2687(匿名)@ index.js?6435:233(匿名)@ index.js?6435:231(匿名)@ index.js?6435:116(匿名)@Toolbar.vue?be73:29./src/components/Shared/Toolbar.vue @ app.js:2759__webpack_require__ @ app.js:768hotApply @ app.js:687(匿名)@ app.js:344Promise.then(异步)hotUpdateDownloaded @ app.js:343hotAddUpdateChunk @ app.js:319webpackHotUpdateCallback @ app.js:37(匿名)@ app.a888e56db407050b2768.hot-update.js:1Toolbar.vue?9799:67 TOOLBAR 安装语言环境:en

Toolbar.vue

 <模板><v-toolbar height="80px" 固定><v-toolbar-title><img src="@/assets/images/app_logo.png" alt=""><v-菜单偏移-y><v-btn插槽 =激活器"颜色=主要"黑暗的><span v-if="this.locale === 'en'">英语</span><span v-if="this.locale === 'fr'">Français</span><span v-if="this.locale === 'br'">葡萄牙语</span></v-btn><v-list><v-list-tilev-for="(locale, index) in locales":key="索引"@click="switchLocale(index)"><v-list-tile-title>{{locale.title }}</v-list-tile-title></v-list-tile></v-list></v-菜单></v-toolbar-title><v-间隔></v-间隔><v-toolbar-items>....</v-toolbar-items></v-工具栏></模板><脚本>导出默认{name: '工具栏',道具:['appName']，数据 () {返回 {菜单项:{家:{图标:'家'，标题:'家'，链接:'/'}，关于:{图标:'信息'，标题:'关于'，链接:'/关于'}},语言环境: 'en',语言环境:[{ locale: 'en', title: 'English', icon: '@/assets/images/flag_gb_24.png' },{ locale: 'fr', title: 'Français', icon: '@/assets/images/flag_fr_24.png' },{ locale: 'br', title: 'Português', icon: '@/assets/images/flag_br_24.png' }]}},方法: {switchLocale:函数(索引){console.log('切换语言环境:', this.locales[index].title)this.locale = this.locales[index].locale}},挂载(){console.log('TOOLBAR 安装的语言环境:', this.locale)}}

解决方案

据我所知，在 vuetify 中你需要将你的应用包装在 .这发生在 App.vue 或您在 main.js 中作为根组件设置的任何内容中.v-app 组件设置这个 data-app 属性.

文档说明了这一点:

<块引用>

Vuetify 需要使用 v-app 组件.它应该包装您的整个应用程序，并且是许多框架功能(包括主题)的中心点.确保您遵循应用程序页面中记录的正确标记.

来源:常见问题解答:我的申请看起来不正确，于 2019 年 10 月 2 日检索

Vuetify 1.1.8 / Vue 2.5.16

I don't understand why I get 2 different behaviors :

1- testing in Codepen.io

html

    <div id="app">
      <v-app id="inspire">
        <div class="text-xs-center">
          <v-menu offset-y>
            <v-btn
              slot="activator"
              color="primary"
              dark
            >
              <span v-if="this.locale === 'en'">English</span>
              <span v-if="this.locale === 'fr'">Français</span>
              <span v-if="this.locale === 'br'">Português</span>
            </v-btn>
            <v-list>
              <v-list-tile
                v-for="(locale, index) in locales"
                :key="index"
                @click="switchLocale(index)"
              >
                <v-list-tile-title>{{ locale.title }}</v-list-tile-title>
              </v-list-tile>
            </v-list>
          </v-menu>
        </div>
      </v-app>
    </div>

js

    new Vue({
      el: '#app',
      data: () => ({
        locale: 'en',
        locales: [
          { locale: 'en', title: 'English', icon: '@/assets/images/flag_gb_24.png' },
          { locale: 'fr', title: 'Français', icon: '@/assets/images/flag_fr_24.png' },
          { locale: 'br', title: 'Português', icon: '@/assets/images/flag_br_24.png' }
        ]
      }),
       methods: {
        switchLocale: function (index) {
          console.log('switch locale: ', this.locales[index].title)
          this.locale = this.locales[index].locale
        }
      }
    })

is running fine...

BUT once I insert it into a Vue.js component in my app, I get an error :

console

    vuetify.js?ce5b:19387 [Vuetify] Unable to locate target [data-app]

    found in

    ---> <VMenu>
           <VToolbar>
             <Toolbar>
               <App> at src/App.vue
                 <Root>
    consoleWarn @ vuetify.js?ce5b:19387
    initDetach @ vuetify.js?ce5b:16782
    mounted @ vuetify.js?ce5b:16742
    callHook @ vue.runtime.esm.js?2b0e:2917
    insert @ vue.runtime.esm.js?2b0e:4154
    invokeInsertHook @ vue.runtime.esm.js?2b0e:5956
    patch @ vue.runtime.esm.js?2b0e:6175
    Vue._update @ vue.runtime.esm.js?2b0e:2666
    updateComponent @ vue.runtime.esm.js?2b0e:2784
    get @ vue.runtime.esm.js?2b0e:3138
    run @ vue.runtime.esm.js?2b0e:3215
    flushSchedulerQueue @ vue.runtime.esm.js?2b0e:2977
    (anonymous) @ vue.runtime.esm.js?2b0e:1833
    flushCallbacks @ vue.runtime.esm.js?2b0e:1754
    Promise.then (async)
    microTimerFunc @ vue.runtime.esm.js?2b0e:1802
    nextTick @ vue.runtime.esm.js?2b0e:1846
    queueWatcher @ vue.runtime.esm.js?2b0e:3064
    update @ vue.runtime.esm.js?2b0e:3205
    Vue.$forceUpdate @ vue.runtime.esm.js?2b0e:2687
    (anonymous) @ index.js?6435:233
    (anonymous) @ index.js?6435:231
    (anonymous) @ index.js?6435:116
    (anonymous) @ Toolbar.vue?be73:29
    ./src/components/Shared/Toolbar.vue @ app.js:2759
    __webpack_require__ @ app.js:768
    hotApply @ app.js:687
    (anonymous) @ app.js:344
    Promise.then (async)
    hotUpdateDownloaded @ app.js:343
    hotAddUpdateChunk @ app.js:319
    webpackHotUpdateCallback @ app.js:37
    (anonymous) @ app.a888e56db407050b2768.hot-update.js:1
    Toolbar.vue?9799:67 TOOLBAR mounted locale:  en

Toolbar.vue

       <template>
          <v-toolbar height="80px" fixed>
            <v-toolbar-title>
              <img src="@/assets/images/app_logo.png" alt="">
              <v-menu offset-y>
                <v-btn
                  slot="activator"
                  color="primary"
                  dark
                >
                  <span v-if="this.locale === 'en'">English</span>
                  <span v-if="this.locale === 'fr'">Français</span>
                  <span v-if="this.locale === 'br'">Português</span>
                </v-btn>
                <v-list>
                  <v-list-tile
                    v-for="(locale, index) in locales"
                    :key="index"
                    @click="switchLocale(index)"
                  >
                    <v-list-tile-title>{{ locale.title }}</v-list-tile-title>
                  </v-list-tile>
                </v-list>
              </v-menu>
            </v-toolbar-title>
            <v-spacer></v-spacer>
            <v-toolbar-items>
              ....
            </v-toolbar-items>
       </v-toolbar>
    </template>

    <script>
    export default {
      name: 'Toolbar',
      props: ['appName'],
      data () {
        return {
          menuItems: {
            home: { icon: 'home', title: 'Home', link: '/' },
            about: { icon: 'info', title: 'About', link: '/about' }
          },
          locale: 'en',
          locales: [
            { locale: 'en', title: 'English', icon: '@/assets/images/flag_gb_24.png' },
            { locale: 'fr', title: 'Français', icon: '@/assets/images/flag_fr_24.png' },
            { locale: 'br', title: 'Português', icon: '@/assets/images/flag_br_24.png' }
          ]
        }
      },
      methods: {
        switchLocale: function (index) {
          console.log('switch locale: ', this.locales[index].title)
          this.locale = this.locales[index].locale
        }
      },
      mounted () {
        console.log('TOOLBAR mounted locale: ', this.locale)
      }
    }
    </script>

解决方案

As far as I understand, in vuetify you need to wrap your application in <v-app></v-app>. This happens in App.vue or whatever you have set in your main.js as root component. The v-app components sets this data-app attribute.

The documentation says this about it:

Vuetify requires the use of the v-app component. It should wrap your entire application and is the center point for much of the framework functionality including themes. Ensure that you are following the proper markup documented in the Application page.

Source: FAQ: My application does not look correct, retrieved on 2 October 2019

这篇关于v-menu 的 Vuetify 问题的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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