vue移动端开发总结

<meta name='viewport' content='width=device-width,initial-scale=1,user-scale=no' />

document.documentElement.style.fontSize = document.documentElement.clientWidth / 10 + 'px';

;(function () {
    const width = document.body.clientWidth || window.innerWidth
    const scale = width / 750
    const content = 'width=750, initial-scale=' + scale + ', minimum-scale=' + scale + ', maximum-scale=' + scale + ', viewport-fit=cover'
    document.querySelector('meta[name="viewport"]').content = content
})()

html, body {
  padding: 0;
  margin: 0;
}
.page {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  .page-content {
    flex: 1;
    overflow-y: auto;
  }
}

<template>
  <div class="header">
    <div class="header__left">
      左
    </div>
    <div class="header__main">
      <slot>Title</slot>
    </div>
    <div class="header__right">
      <div>右</div>
    </div>
  </div>
</template>
<script>
export default {
  name: 'HeadBar'
}
</script>
<style lang="scss" scoped>
.header {
  display: flex;
  width: 100%;
  line-height: 88px;
  height: 88px;
  font-size: 36px;
  background-color: #42b983;
  z-index: 999;
  color: #fff;
  transition: background-color .5s ease;
  .header__main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
  }
  .header__left, .header__right {
    padding: 0 16px;
    width: 120px;
  }
  .header__left {
    text-align: left;
  }
  .header__right {
    text-align: right;
  }
}
</style>

<template>
  <div class="taber">
    <div class="taber-item">
      <div class="icon"></div>
      <span>选项1</span>
    </div>
    <div class="taber-item">
      <div class="icon"></div>
      <span>选项2</span>
    </div>
    <div class="taber-item">
      <div class="icon"></div>
      <span>选项3</span>
    </div>
    <div class="taber-item">
      <div class="icon"></div>
      <span>选项4</span>
    </div>
  </div>
</template>
<script>
export default {
  name: 'BottomTaber',
  data () {
    return {
    }
  }
}
</script>
<style lang="scss" scoped>
.taber {
  background-color: #42b983;
  color: #fff;
  height: 88px;
  display: flex;
  .taber-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    align-items: center;
  }
  .icon {
    width: 36px;
    height: 36px;
    background-color: #fff;
  }
}
</style>

<template>
  <transition :name="transitionName">
    <router-view></router-view>
  </transition>
</template>

<script>
export default {
  name: 'app',
  data () {
    return {
      transitionName: 'fade'
    }
  },
  watch: {
    '$route' (to, from) {
      let toDepth = to.meta
      let fromDepth = from.meta
      if (fromDepth > toDepth) {
        this.transitionName = 'fade-left'
      } else if (fromDepth < toDepth) {
        this.transitionName = 'fade-right'
      } else {
        this.transitionName = 'fade'
      }
    }
  }
}
</script>

import Navigation from 'vue-navigation'
Vue.use(Navigation, {router}) // router为路由文件

this.$navigation.on('forward', (to, from) => {
    this.transitionName = 'fade-right'
 })
 this.$navigation.on('back', (to, from) => {
    this.transitionName = 'fade-left'
 })
 this.$navigation.on('replace', (to, from) => {
    this.transitionName = 'fade'
 })

const whiteList = ['/login']
router.beforeEach((to, from, next) => {
  const hasToken = store.getters.auth
  if (hasToken) {
    if (to.path === '/login') {
      next({ path: '/' })
    } else {
      const needRoles = to.meta && to.meta.roles && to.meta.roles.length > 0
      if (needRoles) {
        const hasRoles = store.state.user.roles.some(role => to.meta.roles.includes(role))
        if (hasRoles) {
          next()
        } else {
          next('/403')
        }
      } else {
        next()
      }
    }
  } else {
    if (whiteList.includes(to.path)) {
      next()
    } else {
      next('/login')
    }
  }
})

export default function registerComponent (Vue) {
  /**
   * 参数说明：
   * 1. 其组件目录的相对路径
   * 2. 是否查询其子目录
   * 3. 匹配基础组件文件名的正则表达式
   **/
  const modules = require.context('./', false, /\w+.vue$/)
  modules.keys().forEach(fileName => {
    // 获取组件配置
    const component = modules(fileName)
    // 获取组件名称，去除文件名开头的 `./` 和结尾的扩展名
    const name = fileName.replace(/^\.\/(.*)\.\w+$/, '$1')
    // 注册全局组件
    // 如果这个组件选项是通过 `export default` 导出的，
    // 那么就会优先使用 `.default`，
    // 否则回退到使用模块的根。
    Vue.component(name, component.default || component)
  })
}

import registerComponent from './components'
registerComponent(Vue)

<template>
  <div>
    <input type="text" :value="value" @input="onInput">
  </div>
</template>
<script>
export default {
  name: 'NumberInput',
  props: {
    value: String
  },
  methods: {
    onInput (event) {
      if (/^\d+$/.test(event.target.value)) {
        this.$emit('input', event.target.value)
      } else {
        event.target.value = this.value
      }
    }
  }
}
</script>

Vue.component('my-checkbox', {
  model: {
    prop: 'checked',
    event: 'change'
  },
  props: {
    // this allows using the `value` prop for a different purpose
    value: String,
    // use `checked` as the prop which take the place of `value`
    checked: {
      type: Number,
      default: 0
    }
  },
  // ...
})

<my-checkbox v-model="foo" value="some value"></my-checkbox>

<my-checkbox
  :checked="foo"
  @change="val => { foo = val }"
  value="some value">
</my-checkbox>

this.$dialog.alert({
  message: '弹窗内容'
});

import Vue from 'vue';
export default function create(Component, props) {
    // 先创建实例
    const vm = new Vue({
        render(h) {
            // h就是createElement，它返回VNode
            return h(Component, {props})
        }
    }).$mount();
    // 手动挂载
    document.body.appendChild(vm.$el);
    // 销毁方法
    const comp = vm.$children[0];
    comp.remove = function() {
        document.body.removeChild(vm.$el);
        vm.$destroy();
    }
    return comp;
}

<template>
  <div class="loading-wrapper" v-show="visible">
    加载中
  </div>
</template>
<script>
export default {
  name: 'Loading',
  data () {
    return {
      visible: false
    }
  },
  methods: {
    show () {
      this.visible = true
    },
    hide () {
      this.visible = false
    }
  }
}
</script>
<style lang="css" scoped>
.loading-wrapper {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 100%;
  background-color: rgba(0, 0, 0, .4);
  z-index: 999;
}
</style>
<!--使用-->
const loading = create(Loading, {})
loading.show() // 显示
loading.hide() // 关闭

// webpack.config.js
module.exports = {
  rules: [
    {
      test: /\.less$/,
      use: [
        // ...其他 loader 配置
        {
          loader: 'less-loader',
          options: {
            modifyVars: {
              // 直接覆盖变量
              'text-color': '#111',
              'border-color': '#eee'
              // 或者可以通过 less 文件覆盖（文件路径为绝对路径）
              'hack': `true; @import "your-less-file-path.less";`
            }
          }
        }
      ]
    }
  ]
};

module.exports = {
  css: {
    loaderOptions: {
      less: {
        modifyVars: {
          'hack': `true; @import "~@/assets/less/vars.less";`
        }
      }
    }
  }
}