一切福田，不離方寸，從心而覓，感無不通。

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：

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<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:

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/*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：

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<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  

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Vue.prototype.bus = new Vue;

 

4.在.vue组件中使用

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

 

效果如下:

 

from:https://blog.csdn.net/liangmengbk/article/details/90201596

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