在前后端分离项目中,由于页面请求和数据请求并非同步,所以导致页面和数据不能同时渲染,因此在实际过程中往往采用SSR即服务端渲染或者请求数据时采用遮罩(加载中)的方式提升用户体验。下面我将使用loading遮罩的方式实现更加友好的数据加载。
https://codepen.io/bartezic/pen/ByqeNq
<div>
<div>
<div id="appLoading">
<div class='lmask'></div>
</div>
<div id="app">
<router-view v-if="isRouterAlive"/>
</div>
</div>
.lmask {
position: absolute;
height: 100%;
width: 100%;
background-color: #000;
bottom: 0;
left: 0;
right: 0;
top: 0;
z-index: 9999;;
opacity: 0.4;
&.fixed {
position: fixed;
}
&:before {
content: '';
background-color: rgba(0,0,0,0);
border: 5px solid rgba(0,183,229,0.9);
opacity: .9;
border-right: 5px solid rgba(0,0,0,0);
border-left: 5px solid rgba(0,0,0,0);
border-radius: 50px;
box-shadow: 0 0 35px #2187e7;
width: 50px;
height: 50px;
-moz-animation: spinPulse 1s infinite ease-in-out;
-webkit-animation: spinPulse 1s infinite linear;
margin: -25px 0 0 -25px;
position: absolute;
top: 50%;
left: 50%;
}
&:after {
content: '';
background-color: rgba(0,0,0,0);
border: 5px solid rgba(0,183,229,0.9);
opacity: .9;
border-left: 5px solid rgba(0,0,0,0);
border-right: 5px solid rgba(0,0,0,0);
border-radius: 50px;
box-shadow: 0 0 15px #2187e7;
width: 30px;
height: 30px;
-moz-animation: spinoffPulse 1s infinite linear;
-webkit-animation: spinoffPulse 1s infinite linear;
margin: -15px 0 0 -15px;
position: absolute;
top: 50%;
left: 50%;
}
}
@-moz-keyframes spinPulse {
0% {
-moz-transform:rotate(160deg);
opacity: 0;
box-shadow: 0 0 1px #2187e7;
}
50% {
-moz-transform: rotate(145deg);
opacity: 1;
}
100% {
-moz-transform: rotate(-320deg);
opacity: 0;
}
}
@-moz-keyframes spinoffPulse {
0% {
-moz-transform: rotate(0deg);
}
100% {
-moz-transform: rotate(360deg);
}
}
@-webkit-keyframes spinPulse {
0% {
-webkit-transform: rotate(160deg);
opacity: 0;
box-shadow: 0 0 1px #2187e7;
}
50% {
-webkit-transform: rotate(145deg);
opacity: 1;
}
100% {
-webkit-transform: rotate(-320deg);
opacity: 0;
}
}
@-webkit-keyframes spinoffPulse {
0% {
-webkit-transform: rotate(0deg);
}
100% {
-webkit-transform: rotate(360deg);
}
}
document.getElementById('app').style.display = 'block';
document.getElementById('appLoading').style.display = 'none';
provide() {
return {
loading: this.loading,
loaded: this.loaded
}
},
methods: {
loading() {
document.getElementById('app').style.display = 'block';
document.getElementById('appLoading').style.display = 'block';
},
loaded() {
document.getElementById('app').style.display = 'block';
document.getElementById('appLoading').style.display = 'none';
}
}
上面将这两个函数给暴露了出来,在我们需要的地方inject就好
export default {
inject: ['loading', 'loaded'],
name: "index",
created() {
this.getData()
},
methods: {
getData() {
this.loading()
getUserInfo().then(res => {
this.userInfo = res.data
}).finally(() => {
this.loaded()
})
}
}
}