vue中加载loading

首先在components文件夹中新建一个loading.vue组件:

1.loading.vue组件内容如下：

<template><div class="markbox" v-show="loading" style="background-color: rgba(0, 0, 0, 0.5);"><div class="sun-loading"></div></div>
</template><script>
export default {name: 'loading',data() {return {loading: false}},created() {var that = this;this.bus.$on('loading', function(data) {that.loading = !!data;})}
}
</script>

css代码:

/*loading开始*/
.sun-loading {width: 45px;height: 45px;display: block;animation: sunLoading 1s steps(12, end) infinite;background: transparent  url('data:image/gif;base64,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');background-size: 100%;margin:auto;position:absolute;top: 0;left: 0;bottom: 0;right:0;
}
/*loading结束*/

2.app.vue中设置：

<template><div id="app"><router-view/><loading></loading>   </div>
</template>
<script>import loading from '@/components/common/loading'export default {name: 'App',components:{loading}}
</script>

3.在main.js中设置

Vue.prototype.bus = new Vue;

4.在.vue组件中使用

 // 显示loading
this.bus.$emit('loading', true);// 关闭loading
this.bus.$emit('loading', false);

效果如下:

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