如何使用jQuery技术开发ios风格的页面导航菜单

2020-05-22 21:57:14易采站长站整理

setTimeout(
function(){
activeList.addClass(hiddenClass);
}, slideDuration - 100
);
mainList.css("left", parseInt(mainList.css("left")) + navWidth + "px");
e.preventDefault();
}
}));

subLevels.prev().wrap($("<a/>", {
href:"#",
click: function(e){
var $this = $(this);
backArrow.removeClass(hiddenClass).text(navTitle.text());
navTitle.text($this.text());
$this.next().removeClass(hiddenClass);
mainList.css("left", parseInt(mainList.css("left")) - navWidth + "px");
e.preventDefault();
}
}));

var backArrow = navTitle.prev(),
navWidth = nav.width(),
firstSubLevel = subLevels.eq(0),
docStyle = document.documentElement.style,
slideDuration = 0,
timingRatio = 1000;

if(docStyle.WebkitTransition !== undefined)
slideDuration = parseFloat(
firstSubLevel.css("-webkit-transition-duration")
) * timingRatio;

if(docStyle.MozTransition !== undefined)
slideDuration = parseFloat(
firstSubLevel.css("-moz-transition-duration")
) * timingRatio;

if(docStyle.OTransition !== undefined)
slideDuration = parseFloat(
firstSubLevel.css("-o-transition-duration")
) * timingRatio;

});

 
CSS

使用图片来生成页面顶端的按钮:


body {
font-size: 14px;
font-family: Arial;
background:#f5f5f8;
}
.js {
position:absolute;
width:320px;
height:480px;
top:50%;
left:50%;
margin:-280px 0 0 -160px;
overflow:hidden;
-webkit-border-radius:5px;
-moz-border-radius:5px;
border-radius:5px;
background:#fff;
-webkit-box-shadow:0 1px 2px rgba(0,0,0,.25);
-moz-box-shadow:0 1px 2px rgba(0,0,0,.25);
box-shadow:0 1px 2px rgba(0,0,0,.25);
}
.js .files {
background-image:none;
}
.js .hidden {
display:none;
}
.js * {
font-size:14px;
font-weight:400;
margin:0;
padding:0;
list-style:none;
}
.js > div {
position:relative;
z-index:1;
height:44px;
text-align:center;
font-size:14px;
line-height:44px;
color:#fff;
text-shadow:0 -1px 0 rgba(0,0,0,.4);
background:#7f94b0;
background:-webkit-gradient(
linear,
0 0,
0 100%,
color-stop(0,#b5c0ce),
color-stop(0.5,#889bb3),
color-stop(0.51,#7f94b0),
color-stop(1,#6d83a1)
);
background:-moz-linear-gradient(
top center,
#b5c0ce,
#889bb3 22px,
#7f94b0 23px,
#6d83a1
);
border-bottom:1px solid #2d3033;
-webkit-border-top-left-radius:5px;
-webkit-border-top-right-radius:5px;
-moz-border-radius-topleft:5px;
-moz-border-radius-topright:5px;
border-top-left-radius:5px;
border-top-right-radius:5px;
}
.js > div a {
height:31px;
top:7px;
left:20px;
font-size:14px;
line-height:31px;
color:#fff;