Posted in Javascript onJuly 17, 2017
由于工作的需要并鉴于网上的vue.js滚动加载方案不合适,自己写了一个简单实用的。就短短的150行代码。
组件代码
// scrollLoader.vue // 滚动加载组件 <style scoped> .container-main {margin: 0 auto; overflow: auto; overflow-x: hidden; padding: 0;} .loading{ width: 100%; height: 40px; position: relative; overflow: hidden; text-align: center; margin: 5px 0 ; color: #999; font-size: 13px;} .loading-icon{color: #707070;}; .loader { font-size: 10px; margin: 8px auto; text-indent: -9999em; width: 24px; height: 24px; border-radius: 50%; background: #999; background: -moz-linear-gradient(left, #999 10%, rgba(255, 255, 255, 0) 42%); background: -webkit-linear-gradient(left, #999 10%, rgba(255, 255, 255, 0) 42%); background: -o-linear-gradient(left, #999 10%, rgba(255, 255, 255, 0) 42%); background: -ms-linear-gradient(left, #999 10%, rgba(255, 255, 255, 0) 42%); background: linear-gradient(to right, #999 10%, rgba(255, 255, 255, 0) 42%); position: relative; -webkit-animation: load3 1s infinite linear; animation: load3 1s infinite linear; } .loader:before { width: 50%; height: 50%; background: #999; border-radius: 100% 0 0 0; position: absolute; top: 0; left: 0; content: ''; } .loader:after { background: #f5f5f5; width: 72%; height: 75%; border-radius: 68%; content: ''; margin: auto; position: absolute; top: 0; left: 0; bottom: 0; right: 0; } @-webkit-keyframes load3 { 0% { -webkit-transform: rotate(0deg); transform: rotate(0deg); } 100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); } } @keyframes load3 { 0% { -webkit-transform: rotate(0deg); transform: rotate(0deg); } 100% { -webkit-transform: rotate(360deg); transform: rotate(360deg); } } </style> <template> <div id="scrollLoader-container" class="container-main"> <div class="loading" v-if="topLoading"> <div class="loader">加载中...</div> </div> <div :style="'min-height:' + realMinHeight + 'px; overflow-x:hidden'"> <slot></slot> </div> <div class="loading" v-if="bottonLoading"> <div class="loader">加载中...</div> </div> </div> </template> <script> export default { name: "scroll-loader", props: { //给slot传一个最小值,保证一开始能出现滚动条 'minHeight': { type: Number, default: 800 }, }, created(){ }, computed: { realMinHeight(){ return this.minHeight + 30 } }, data() { return { topLoading: false, bottonLoading: false, stopTopLoading: false, //是否停止传播滚动到顶部事件 stopBottonLoading: false, //是否停止传播滚动到底部事件 } }, mounted(){ this.listenScroll(); }, methods: { listenScroll(){ var me = this; var topDone = (stopTopLoading) => { me.topLoading = false; if(stopTopLoading) me.stopTopLoading = true; }; var bottonDone = (stopBottonLoading) => { me.bottonLoading = false; if(stopBottonLoading) me.stopBottonLoading = true; }; setTimeout(function(){ var scrollContainer = document.getElementById('scrollLoader-container'); scrollContainer.onscroll = function(){ if(scrollContainer.scrollTop<=0 && !me.stopTopLoading){ if(me.topLoading) return; me.topLoading = true; me.$emit('scroll-to-top', topDone); } if((scrollContainer.offsetHeight + scrollContainer.scrollTop+1 >= scrollContainer.scrollHeight) && !me.stopBottonLoading){ if(me.bottonLoading) return; me.bottonLoading = true; scrollContainer.scrollTop += 40; me.$emit('scroll-to-botton', bottonDone); } } }, 50) }, } } </script>
源码:https://github.com/doterlin/vue-wxChat
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持三水点靠木。
Vue.js上下滚动加载组件的实例代码
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