mui实现新闻列表和详情查看
1.新闻列表首页代码：
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>列表到详情最佳实践</title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<link href="../css/mui.min1.css" rel="stylesheet" />
<style type="text/css">
.mui-media {
font-size: 14px;
}
.mui-table-view .mui-media-object {
max-width: initial;
width: 90px;
height: 70px;
}
.meta-info {
position: absolute;
left: 115px;
right: 15px;
bottom: 8px;
color: #8f8f94;
}
.meta-info .author,
.meta-info .time {
display: inline-block;
}
.meta-info .time {
float: right;
}
.mui-table-view:before,
.mui-table-view:after {
height: 0;
}
.mui-content>.mui-table-view:first-child {
margin-top: 1px;
}
.banner {
height: 180px;
overflow: hidden;
position: relative;
background-position: center;
background-color: #ccc;
}
.banner img {
width: 100%;
height: auto;
}
.banner .title {
position: absolute;
left: 15px;
bottom: 15px;
width: 90%;
font-size: 16px;
font-weight: 400;
line-height: 21px;
color: white;
z-index: 11;
}
</style>
</head>
<body>
<div class="mui-content" id="news">
<!--顶部banner图 开始-->
<div class="banner">
<a href="javascript:;" :data-guid="banner.guid" @tap="open_detail(banner)">
<img :src="banner.cover" />
<h2 class="title mui-ellipsis-2">{{banner.title}}</h2>
<div style="display: none;">
<div class="author">{{banner.author}}</div>
<div class="time">{{banner.time}}</div>
</div>
</a>
</div>
<!--顶部banner图 结束-->
<!--列表信息流 开始-->
<div id="list" class="mui-scroll-wrapper">
<div class="mui-scroll">
<ul class="mui-table-view">
<li class="mui-table-view-cell mui-media" v-for="item in items">
<a href="javascript:;" :data-guid="item.guid" @tap="open_detail(item)">
<img class="mui-media-object mui-pull-left" :src="item.cover">
<div class="mui-media-body">
<div class="mui-ellipsis-2">{{item.title}}</div>
</div>
<div class="meta-info">
<div class="author">{{item.author}}</div>
<div class="time">{{item.time}}</div>
</div>
</a>
</li>
</ul>
</div>
</div>
<!--列表信息流 结束-->
</div>
<script src="../js/mui.min.js"></script>
<script src="../js/vue.min.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
var lastId = '',
minId = ''; //最新新闻的id
var webview_detail = null; //详情页webview
var titleNView = { //详情页原生导航配置
backgroundColor: '#f7f7f7', //导航栏背景色
titleText: '', //导航栏标题
titleColor: '#000000', //文字颜色
type: 'transparent', //透明渐变样式
autoBackButton: true, //自动绘制返回箭头
splitLine: { //底部分割线
color: '#cccccc'
}
}
//mui初始化，配置下拉刷新
mui.init({
pullRefresh: {
container: '#list',
down: {
style: 'circle',
offset: '0px',
auto: true,
callback: pulldownRefresh
},
up: {
contentrefresh: '正在加载...',
callback: pullupRefresh
}
}
});
/**
* 下拉刷新获取最新列表
*/
function pulldownRefresh() {
if(window.plus && plus.networkinfo.getCurrentType() === plus.networkinfo.CONNECTION_NONE) {
plus.nativeUI.toast('似乎已断开与互联网的连接', {
verticalAlign: 'top'
});
return;
}
var data = {
column: "id,post_id,title,author_name,cover,published_at" //需要的字段名
}
if(lastId) { //说明已有数据，目前处于下拉刷新，增加时间戳，触发服务端立即刷新，返回最新数据
data.lastId = lastId;
data.time = new Date().getTime() + "";
}
//请求顶部banner信息
mui.getJSON("http://spider.dcloud.net.cn/api/banner/36kr", data, function(rsp) {
news.banner = {
guid: rsp.post_id,
title: rsp.title,
cover: rsp.cover,
author: rsp.author_name,
time: dateUtils.format(rsp.published_at)
};
});
//请求最新列表信息流
mui.getJSON("http://spider.dcloud.net.cn/api/news", data, function(rsp) {
mui('#list').pullRefresh().endPulldownToRefresh();
if(rsp && rsp.length > 0) {
lastId = rsp[0].id; //保存最新消息的id，方便下拉刷新时使用
if(!minId) {//首次拉取列表时保存最后一条消息的id，方便上拉加载时使用
minId = rsp[rsp.length - 1].id;
}
news.items = convert(rsp).concat(news.items);
}
});
}
/**
* 上拉加载拉取历史列表
*/
function pullupRefresh() {
var data = {
column: "id,post_id,title,author_name,cover,published_at" //需要的字段名
};
if(minId) { //说明已有数据，目前处于上拉加载，传递当前minId 返回历史数据
data.minId = minId;
data.time = new Date().getTime() + "";
data.pageSize = 10;
}
//请求历史列表信息流
mui.getJSON("http://spider.dcloud.net.cn/api/news", data, function(rsp) {
mui('#list').pullRefresh().endPullupToRefresh();
if(rsp && rsp.length > 0) {
minId = rsp[rsp.length - 1].id; //保存最后一条消息的id，上拉加载时使用
news.items = news.items.concat(convert(rsp));
}
});
}
mui.plusReady(function() {
//预加载详情页
webview_detail = mui.preload({
url: 'PYQ_Detail.html',
id: 'news_detail',
styles: {
"render": "always",
"popGesture": "hide",
"bounce": "vertical",
"bounceBackground": "#efeff4",
"titleNView": titleNView
}
});
});
var news = new Vue({
el: '#news',
data: {
banner: {}, //顶部banner数据
items: [] //列表信息流数据
}
});
/**
* 打开新闻详情
*
* @param {Object} item 当前点击的新闻对象
*/
function open_detail(item) {
//触发子窗口变更新闻详情
mui.fire(webview_detail, 'get_detail', {
guid: item.guid,
title: item.title,
author: item.author,
time: item.time,
cover: item.cover
});
//更改详情页原生导航条信息
titleNView.titleText = item.title;
webview_detail.setStyle({
"titleNView": titleNView
});
setTimeout(function() {
webview_detail.show("slide-in-right", 300);
}, 150);
}
/**
* 1、将服务端返回数据，转换成前端需要的格式
* 2、若服务端返回格式和前端所需格式相同，则不需要改功能
*
* @param {Array} items
*/
function convert(items) {
var newItems = [];
items.forEach(function(item) {
newItems.push({
guid: item.post_id,
title: item.title,
author: item.author_name,
cover: item.cover,
time: dateUtils.format(item.published_at)
});
});
return newItems;
}
/**
* 格式化时间的辅助类，将一个时间转换成x小时前、y天前等
*/
var dateUtils = {
UNITS: {
'年': 31557600000,
'月': 2629800000,
'天': 86400000,
'小时': 3600000,
'分钟': 60000,
'秒': 1000
},
humanize: function(milliseconds) {
var humanize = '';
mui.each(this.UNITS, function(unit, value) {
if(milliseconds >= value) {
humanize = Math.floor(milliseconds / value) + unit + '前';
return false;
}
return true;
});
return humanize || '刚刚';
},
format: function(dateStr) {
var date = this.parse(dateStr)
var diff = Date.now() - date.getTime();
if(diff < this.UNITS['天']) {
return this.humanize(diff);
}
var _format = function(number) {
return(number < 10 ? ('0' + number) : number);
};
return date.getFullYear() + '/' + _format(date.getMonth() + 1) + '/' + _format(date.getDay()) + '-' + _format(date.getHours()) + ':' + _format(date.getMinutes());
},
parse: function(str) { //将"yyyy-mm-dd HH:MM:ss"格式的字符串，转化为一个Date对象
var a = str.split(/[^0-9]/);
return new Date(a[0], a[1] - 1, a[2], a[3], a[4], a[5]);
}
};
</script>
</body>
</html>
效果如下：
详情页面代码：
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
<link href="../css/mui.min1.css" rel="stylesheet" />
<link rel="stylesheet" type="text/css" href="../css/list-to-detail.css" />
</head>
<body>
<div class="mui-content">
<!--顶部banner图 开始-->
<div id="kr-article-banner" class="kr-article-banner">
<div id="kr-article-cover" class="kr-article-cover">
<img :src="cover">
</div>
<h2 id="kr-article-title" class="kr-article-title">{{title}}</h2>
</div>
<!--顶部banner图 结束-->
<div class="kr-article-content">
<!-- 文章作者、发布时间等信息 -->
<div class="kr-article-meta">
<div id="kr-article-author" class="kr-article-author">{{author}}</div>
<div class="kr-article-text">发表于</div>
<div id="kr-article-time" class="kr-article-time">{{time}}</div>
</div>
<!--文章详细内容-->
<div id="kr-article-article" class="kr-article-article" v-html="content"></div>
</div>
</div>
<script src="../js/mui.min.js"></script>
<script src="../js/vue.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
mui.init();
function getDefaultData() {
return {
cover: '',
title: '',
author: '',
time: '',
content: ''
}
}
var vm = new Vue({
el: '.mui-content',
data: getDefaultData(),
methods: {
resetData: function() {//重置数据
Object.assign(this.$data, getDefaultData());
}
}
});
//监听自定义事件，获取新闻详情
document.addEventListener('get_detail', function(event) {
var guid = event.detail.guid;
if(!guid) {
return;
}
//前页传入的数据，直接渲染，无需等待ajax请求详情后
vm.cover = event.detail.cover;
vm.title = event.detail.title;
vm.author = event.detail.author;
vm.time = event.detail.time;
//向服务端请求文章详情内容
mui.ajax('http://spider.dcloud.net.cn/api/news/36kr/' + guid, {
type:'GET',
dataType: 'json', //服务器返回json格式数据
timeout: 15000, //15秒超时
success: function(rsp) {
vm.content = rsp.content;
},
error: function(xhr, type, errorThrown) {
mui.toast('获取文章内容失败');
//TODO 此处可以向服务端告警
}
});
});
//重写返回逻辑
mui.back = function() {
plus.webview.currentWebview().hide("auto", 300);
}
//窗口隐藏时，重置页面数据
mui.plusReady(function () {
var self = plus.webview.currentWebview();
self.addEventListener("hide",function (e) {
window.scrollTo(0, 0);
vm.resetData();
},false);
})
</script>
</body>
</html>
实现效果如下：
生命在搏动，我还在奋斗中，像我这样傻的人，世上还有多少人。