我们经常看到数据未出现时，页面中会有一条提示消息， 页面正在加载中，如何实现该效果呢 ，请看下面代码
<template>
<section class="page" v-if="option"
:style="{background: option.background,color: option.color||'#fff'}"
:class="{'page-before': option.index < currentPage,
'page-after': option.index > currentPage,
'page-current': option.index === currentPage}">
<div :class="{'all-center': option.isCenter}">
<slot></slot>
</div>
</section>
<section class="page" v-else>页面正在渲染中。。。</section>
</template>有木有感觉很简单
下面上点干货，实现页面的动画效果
<template>
<nav class="controller">
<button v-if="option.arrowsType" class="prev-btn" :class="{moving:option.arrowsType === 'animate'}" @click="changePage(prevIndex)"></button>
<ul v-if="option.navbar">
<li v-for="index in pageNum" @click="changePage(index)" :class="{current:option.highlight && index === currentPage}" :key="'controller-'+index" :data-index="index" class="controller-item"></li>
</ul>
<button v-if="option.arrowsType" class="next-btn" :class="{moving:option.arrowsType === 'animate'}" @click="changePage(nextIndex)"></button>
</nav>
</template><script>
export default {
name: 'page-controller',
props: {
pageNum: Number,
currentPage: Number,
option: {
type: Object,
default: {
arrowsType: 'animate',
navbar: true,
highlight: true,
loop: true //是否开启滚动循环
}
}
},
methods: {
changePage (index) {
this.$emit('changePage', index);
}
},
computed: {
nextIndex () {
if (this.currentPage === this.pageNum) {
if(this.option.loop){
return 1
}else{
return this.pageNum
}
} else {
return this.currentPage + 1;
}
},
prevIndex () {
if (this.currentPage === 1) {
if(this.option.loop){
return this.pageNum
}else{
return 1
}
} else {
return this.currentPage - 1;
}
}
},
created () {
if (this.option.navbar === undefined) {
this.option.navbar = true;
}
},
mounted () {
let _this = this;
let timer = null;
let start = 0;
// 滚轮处理
function scrollHandler (direction) {
// 防止重复触发滚动事件
if (timer != null) {
return;
}
if (direction === 'down') {
_this.changePage(_this.nextIndex);
} else {
_this.changePage(_this.prevIndex);
}
timer = setTimeout(function() {
