html5 浮动侧滑菜单栏怎样实现

html-css024

html5 浮动侧滑菜单栏怎样实现,第1张

一共有4种侧滑动画特效。这款CSS3菜单的特点是鼠标划过时即可以各种动画方式展开和隐藏菜单项,该动画方式由CSS3中的transition-delay属性来完成

<style type="text/css">

/*Fontawesome Iconfont*/

@import url(http://libs.useso.com/js/font-awesome/4.0.1/css/font-awesome.min.css)

@import url(http://fonts.useso.com/css?family=Montserrat)

* {margin: 0padding: 0}

li {list-style-type: none}

.grid {float: leftwidth:980pxmargin: 0 auto}

.grid >li { width: 285pxheight: 500pxoverflow: hiddenfloat: leftmargin: 20px 0 20px 30pxposition: relative}

.grid >li:hover {box-shadow: 0 0 15px 0 rgba(0, 0, 0, 0.5)}

.grid>li section {position: relativetransition: all 0.25swidth: 100%}

.grid>li h2 {font: bold 14px montserratcolor: #ffftext-transform: uppercaseposition: absolutetext-align: centerwidth: 60%left: 20%top: 100pxpadding: 10px 0border: 2px solid whiteborder-radius: 4px}

.sidenav { position: absolutetop: 0left: 0bottom: 0background: linear-gradient(rgba(50,60,60, 1), rgba(50,60,60, 0.7))width: 50pxtransition: all 0.25soverflow: hiddenpadding-top: 100px}

.sidenav li { _overflow: hiddenwidth: 150px}

.sidenav a { text-decoration: nonecolor: #eee display: blockline-height: 48px }

.sidenav span {display: block}

.sidenav b { padding-left 10pxdisplay: blockcolor: whitefont-family: Montserratfont-size: 12pxline-height: 4opacity: 0}

.sidenav a i { display: blockfloat: leftfont-size: 16pxline-height: 48pxwidth: 50pxtext-align: center}

/*All instances*/

.grid>li:hover .sidenav {width: 150px}

.grid>li:hover section {margin-left: 150px}

.grid>li:hover b {opacity: 1}

.sidenav li:nth-child(1) b, .sidenav li:nth-child(1) a {transition-delay: .08s}

.sidenav li:nth-child(2) b, .sidenav li:nth-child(2) a {transition-delay: .16s}

.sidenav li:nth-child(3) b, .sidenav li:nth-child(3) a {transition-delay: .24s}

.sidenav li:nth-child(4) b, .sidenav li:nth-child(4) a {transition-delay: .32s}

.sidenav li:nth-child(5) b, .sidenav li:nth-child(5) a {transition-delay: .40s}

.sidenav li:nth-child(6) b, .sidenav li:nth-child(6) a {transition-delay: .48s}

/*Three*/

.three .w {transform: perspective(100px) translateZ(-24px)}

.three b {transform: perspective(100px) rotateY(180deg) translateZ(24px) scale(0.5)}

.three:hover b {transform: perspective(100px) rotateY(0) translateZ(24px) scale(1)transition: all 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275)background: transparent}

.three .sidenav {width: 150px}

/*Two*/

.two .w {transform: perspective(100px) translateZ(-24px)}

.two b {transform: perspective(100px) rotateX(90deg) translateZ(24px) scale(1.5)opacity: 0}

.two:hover b {transform: perspective(100px) rotateX(0) translateZ(24px) scale(1)transition: all .4sopacity: 1}

.two .sidenav {width: 150px}

/*One*/

.one .w {transform: perspective(100px)}

.one b {transform: perspective(100px) rotateY(90deg)_opacity: 0transform-origin: left center_border: 1px solid white}

.one:hover b {transform: perspective(100px) rotateX(0)transition: all .4sopacity: 1}

.one .sidenav {width: 150px}

.one .sidenav span {float: leftwidth: 100px}

</style>

<!--[if IE]>

<script src="http://libs.useso.com/js/html5shiv/3.7/html5shiv.min.js"></script>

<![endif]-->

</head>

<body>

<div class="htmleaf-container">

<header class="htmleaf-header bgcolor-11">

<div class="htmleaf-demo center">

<a href="index.html">DEMO1</a>

<a href="index2.html" class="current">DEMO2</a>

<a href="index3.html">DEMO3</a>

<a href="index4.html">DEMO4</a>

</div>

<div style="text-align:centerclear:both">

<script src="/gg_bd_ad_720x90.js" type="text/javascript"></script>

<script src="/follow.js" type="text/javascript"></script>

</div>

</header>

<div class="htmleaf-content bgcolor-8">

<ul class="grid">

<li class="one">

<ul class="sidenav">

<li><a><i class="fa fa-check"></i><span class="w"><b>Tasks</b></span></a></li>

<li><a><i class="fa fa-inbox"></i><span class="w"><b>Messages</b></span></a></li>

<li><a><i class="fa fa-pencil"></i><span class="w"><b>New Post</b></span></a></li>

<li><a><i class="fa fa-cog"></i><span class="w"><b>Settings</b></span></a></li>

<li><a><i class="fa fa-star"></i><span class="w"><b>Starred</b></span></a></li>

<li><a><i class="fa fa-power-off"></i><span class="w"><b>Logout</b></span></a></li>

</ul>

<section>

<h2>Door Opening</h2>

<img src="img/mb1.png"/>

</section>

</li>

<li class="two">

<ul class="sidenav">

<li><a><i class="fa fa-check"></i><span class="w"><b>Tasks</b></span></a></li>

<li><a><i class="fa fa-inbox"></i><span class="w"><b>Messages</b></span></a></li>

<li><a><i class="fa fa-pencil"></i><span class="w"><b>New Post</b></span></a></li>

<li><a><i class="fa fa-cog"></i><span class="w"><b>Settings</b></span></a></li>

<li><a><i class="fa fa-star"></i><span class="w"><b>Starred</b></span></a></li>

<li><a><i class="fa fa-power-off"></i><span class="w"><b>Logout</b></span></a></li>

</ul>

<section>

<h2>Flip Down</h2>

<img src="img/mb2.png"/>

</section>

</li>

<li class="three">

<ul class="sidenav">

<li><a><i class="fa fa-check"></i><span class="w"><b>Tasks</b></span></a></li>

<li><a><i class="fa fa-inbox"></i><span class="w"><b>Messages</b></span></a></li>

<li><a><i class="fa fa-pencil"></i><span class="w"><b>New Post</b></span></a></li>

<li><a><i class="fa fa-cog"></i><span class="w"><b>Settings</b></span></a></li>

<li><a><i class="fa fa-star"></i><span class="w"><b>Starred</b></span></a></li>

<li><a><i class="fa fa-power-off"></i><span class="w"><b>Logout</b></span></a></li>

</ul>

1.思路:

其时有2个WebView,一个main是用来装主页面,一个menu是用来装菜单(为提高性能,菜单项是采用了预加载方式的,预加载时为了避免和主页面争夺资源,采用延时加载,例如:

//plusReady事件后,自动创建menu窗口;

mui.plusReady(function() {

main = plus.webview.currentWebview()

//setTimeout的目的是等待窗体动画结束后,再执行create webview操作,避免资源竞争,导致窗口动画不流畅;

setTimeout(function () {

//侧滑菜单默认隐藏,这样可以节省内存;

menu = mui.preload({

id: 'offcanvas-drag-right-plus-menu',

url: 'offcanvas-drag-right-plus-menu.html',

styles: {

left: 0,

width: '70%'

}

})

},300)

})

2.所谓侧滑,就是控制菜单WebView的显示,使用它的left来定位左边位置;

3.要打开新的webView,要注意webview的show方法使用:

void plus.webview.show( id_wvobj, aniShow, duration, showedCB, extras )

参数含义:(1)是webview对象 (2)动画效果,从没显示过,一般用"none",(3)动画过渡时间 (4)当指定Webview窗口显示动画执行完毕时触发回调函数,窗口无动画效果(如"none"动画效果)时也会触发此回调。(5)传递的参数;

4.显示的方法:

(1)按钮点击后,让menu直接show出来,并对main设置样式,比如

menu.show("none",0,function(){

main.setStyle({

left:"70%",

transition:{

duration:150

}

})

})

(2)关闭侧滑菜单,实际就是设置main的样式了,比如:

main.setStyle({

left: '0',

transition: {

duration: 150

}

})

另外注意窗体切换完成后要关掉menu

//等窗体动画结束后,隐藏菜单webview,节省资源;

setTimeout(function() {

menu.hide()

}, 200)

5.被打开的WebView的界面如何控制关闭侧滑菜单:

(1)先要找到主页面,main = plus.webview.currentWebview().opener()

(2)激发主页面的某个事件,例如:mui.fire(main,"menu:swipeleft")

这个可以通过绝对定位,配合left设置 或者translate去实现

left的方法:

比如让class为menu的元素宽为300px,高100%的,设置left为-300px;在这期间可以加一个过渡transition:left 0.3s ...;

然后让class为menu active的元素设置 left设置为0就可以了 ,在这期间可以加一个过渡transition:left 0.3s ...;

然后可以通过Jquery的toggleClass('active')来实现切换

translate

比如让class为menu的元素宽为300px,高100%的,设置left为-300px;在这期间可以加一个过渡transition:left 0.3s ...;

然后让class为menu active的元素设置 transform:translate3d(-300px,0,0) ,在这期间可以加一个过渡transition:left 0.3s ...;

然后可以通过Jquery的toggleClass('active')来实现切换

这个过程中 需要注意 body需要overflow:hidden(不然会有滚动条,可设置overflow-x即可)

left 和 translate 最好用translate ,translate3d可以开启GPU硬件加速,性能会更好,体验会更流畅

我github有类似小组件样式

github: IFmiss

希望能解决你的问题