HbuilderX版本：Mac 1.9.5.20190505-alpha
运行终端：iPhoneXR
ps：安卓版本测试几个暂时没有发现问题。
测试页面两个：
index.html
<!DOCTYPE html>
<head>
<meta charset="utf-8">
<title>Hello MUI</title>
<meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<link rel="stylesheet" href="css/mui.min.css">
<link rel="stylesheet" type="text/css" href="css/app.css"/>
<script src="js/mui.min.js"></script>
<script>
mui.init({
swipeBack:false,
subpages:[{url:'a01.html',id:'a01.html',styles:{top:"0px",bottom:"50px"}}]
});
</script>
</head>
<body>
<header class="mui-bar mui-bar-nav">
<a class="mui-action-back mui-icon mui-icon-left-nav mui-pull-left"></a>
<h1 class="mui-title">底部选项卡-div模式</h1>
</header>
<nav class="mui-bar mui-bar-tab">
<a class="mui-tab-item mui-active" href="#tabbar">
<span class="mui-icon mui-icon-home"></span>
<span class="mui-tab-label">首页</span>
</a>
<a class="mui-tab-item" href="#tabbar-with-chat">
<span class="mui-icon mui-icon-email"><span class="mui-badge">9</span></span>
<span class="mui-tab-label">消息</span>
</a>
<a class="mui-tab-item" href="#tabbar-with-contact">
<span class="mui-icon mui-icon-contact"></span>
<span class="mui-tab-label">通讯录</span>
</a>
<a class="mui-tab-item" href="#tabbar-with-map">
<span class="mui-icon mui-icon-gear"></span>
<span class="mui-tab-label">设置</span>
</a>
</nav>
</body>
</html>预加载子页面：a01.html
<!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.min.css" rel="stylesheet" />
<script src="js/mui.js"></script>
<script type="text/javascript">
mui.init();
</script>
</head>
<body>
<header class="mui-bar mui-bar-nav">
<h1 class="mui-title">标题</h1>
</header>
<div class="mui-content">
测试
</div>
</body>
</html>使用HbuilderX打包运行的底部导航显示为下图：
使用Hbuilder打包运行的底部导航显示为下图：
