Vue에서 전역 로딩 효과를 구현하는 방법

const Loading = {
  show() {
    // 显示loading效果的代码
  },
  hide() {
    // 隐藏loading效果的代码
  }
}

export default {
  install(Vue) {
    Vue.prototype.$loading = Loading
  }
}

<template>
  <div v-if="visible" class="loading-mask">
    <div class="loading-spinner"></div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      visible: false
    }
  },
  methods: {
    show() {
      this.visible = true
    },
    hide() {
      this.visible = false
    }
  }
}
</script>

<style>
.loading-mask {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loading-spinner {
  border: 4px solid #f3f3f3;
  border-radius: 50%;
  border-top: 4px solid #3498db;
  width: 60px;
  height: 60px;
  -webkit-animation: spin 2s linear infinite;
  animation: spin 2s linear infinite;
}

@-webkit-keyframes spin {
  0% { -webkit-transform: rotate(0deg); }
  100% { -webkit-transform: rotate(360deg); }
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}
</style>

<template>
  <div>
    <h1>这是一个Vue组件</h1>
    <loading ref="loading"></loading>
  </div>
</template>

<script>
import LoadingPlugin from '@/plugins/loading'
import Loading from '@/components/Loading'

export default {
  name: 'HelloWorld',
  components: {
    Loading
  },
  mounted() {
    this.$loading = this.$refs.loading
  },
  plugins: [
    LoadingPlugin
  ],
  methods: {
    fetchData() {
      this.$loading.show() // 显示loading效果
      // 发送请求
      // ...
      this.$loading.hide() // 隐藏loading效果
    }
  }
}
</script>