首先，说说实现的效果：
1、图片的展示与翻页；
2、点击图片放大图片。
实现的效果如下所示：
初始化和第一张
中间的图片
最后一张图片
单击放大显示图片详细与信息
实现的内容很简单，是常规图片的展示方式，下面说说我的实现思路。
1、图片的展示与翻页
a、图片展示
图片展示是通过<img />标签实现的：
<div class="container">
<div class="image-list">
<div id="prev" onclick="updateImage('prev')"></div>
<a id="img1" class="thumb-a" onclick="showImg(1)">
<img class="thumb-img" width="200" height="150" src="img/demopage/thumb-1.jpg" alt="" />
</a>
<a id="img2" class="thumb-a thumb-a-hide" onclick="showImg(2)">
<img class="thumb-img" width="200" height="150" src="img/demopage/thumb-2.jpg" alt="" />
</a>
<a id="img3" class="thumb-a thumb-a-hide" onclick="showImg(3)">
<img class="thumb-img" width="200" height="150" src="img/demopage/thumb-3.jpg" alt="" />
</a>
<div id="next" onclick="updateImage('next')"></div>
</div>
</div>
b、翻页
翻页是通过updateImage这个函数实现的，传递参数为type，判断操作时“上一张”还是“下一张”，updateImage函数如下：
function updateImage(type){
if(type==="prev"){
if(imgIndex>1){
imgIndex=imgIndex-1;
}
}
else{
if(imgIndex<3){
imgIndex=imgIndex+1;
}
}
for(var i=0;i<3;i++){
$("#img"+(i+1)).addClass("thumb-a-hide");
}
$("#img"+imgIndex).removeClass("thumb-a-hide");
if(imgIndex===3){
$("#next").hide();
}
else{
$("#next").show();
}
if(imgIndex===1){
$("#prev").hide();
}
else{
$("#prev").show();
}
};
函数中，imgIndex记录的是当前显示的图片的编号。
①、判断操作类型，并设置操作后的图片的编号。
②、循环添加thumb-a-hide样式，隐藏所有的图片，并移除图片编号为imgIndex的thumb-a-hide样式，显示图片；
③、根据imgIndex判断操作按钮的显示与隐藏。
2、点击显示图片详情与信息
该效果通过函数showImg实现，showImg的具体内容如下：
function showImg(index){
var width=600,height=400;
var winWidth = $(window).width(),winHeight = $(window).height();
var modalBg = $("<div></div>");
modalBg.addClass("modal-bg");
modalBg.appendTo($('body'));
var modal = $("<div></div>");
modal.addClass("modal");
modal.css("position","absolute")
.css("top",(winHeight-height)/2+"px")
.css("left",(winWidth-width)/2+"px");
var titleTipsBg = $("<div></div>").addClass("tips-bg");
var titleTips = $("<a></a>").addClass("tips").html("I am a Chinese.");
var titleClose = $("<a></a>").addClass("close");
var title = $("<div></div>");
title.addClass("title");
title.append(titleTipsBg)
.append(titleTips)
.append(titleClose);
titleClose.on("click",function(){
modalBg.hide();
modal.hide();
});
title.appendTo(modal);
var img = $("<img>").attr("width",width)
.attr("height",height)
.attr("src","img/demopage/image-"+index+".jpg");
var imgDiv = $("<div></div>").append(img);
imgDiv.appendTo(modal);
modal.appendTo($('body'));
}
上述代码生成Html代码之后如下：
<div class="modal-bg"></div> <div class="modal" style="position: absolute; top: 270px; left: 540px;"> <div class="title"> <div class="tips-bg"></div> <a class="tips">I am a Chinese.</a> <a class="close"></a> </div> <div> <img width="600" height="400" src="img/demopage/image-1.jpg"> </div> </div>
其实是创建了一个模态层来显示放大图片。
上面，涉及到的CSS样式内容如下：
<style type="text/css">
html, body, .modal-bg {
height: 100%;
margin: 0;
padding: 0;
font-size: 13px;
font-weight: bold;
color: #fff;
}
.modal-bg{
position: absolute;
left: 0px;
top: 0px;
width: 100%;
background: #48525e;
opacity: 0.4;
z-index: 10;
}
.modal{
position: relative;
z-index: 99;
opacity: 1;
top: 15%;
left: 40%;
width: 600px;
height: 400px;
}
.modal .title .tips-bg{
position: absolute;
bottom: 0px;
left: 0px;
background: #48525e;
width: 100%;
height: 50px;
opacity: 0.8;
}
.modal .title .tips{
position: absolute;
bottom: 13px;
left: 10px;
font-family: "Arial";
font-weight: bold;
font-size: 20px;
}
.modal .title .close{
background: url(img/close.png) no-repeat;
width: 27px;
height: 27px;
position: absolute;
top: 5px;
right: 5px;
}
.modal .title .close:hover{
cursor: pointer;
}
.container{
position: absolute;
top: 200px;
text-align: center;
width: 100%;
z-index: 5;
}
.image-list{
width:300px;
margin-left: 40%;
position: relative;
}
#prev{
display: none;
position: absolute;
top: 55px;
left: 35px;
float: left;
width: 45px;
height: 50px;
background: url(img/prev.png);
}
#next{
position: absolute;
top: 55px;
right: 40px;
width: 45px;
height: 50px;
background: url(img/next.png);
}
#prev:hover,#next:hover{
cursor: pointer;
}
.thumb-a{
display:inline-block;
padding:4px;
margin:0 0.5rem 1rem 0.5rem 1rem;
line-height:0;
-webkit-transition:background-color 0.1s ease-out;
-moz-transition:background-color 0.1s ease-out;
-o-transition:background-color 0.1s ease-out;
transition:background-color 0.1s ease-out;
-webkit-border-radius:6px;
-moz-border-radius:6px;
-ms-border-radius:6px;
-o-border-radius:6px;
border-radius:6px
}
.thumb-a:hover{
background-color:#4ae;
cursor: pointer;
}
.thumb-a-hide{
display: none;
}
.thumb-img{
-webkit-border-radius:5px;
-moz-border-radius:5px;
-ms-border-radius:5px;
-o-border-radius:5px;
border-radius:5px
}
</style>
至此，图片集显示就完成了，完整html代码如下：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Image List</title>
<style type="text/css">
html, body, .modal-bg {
height: 100%;
margin: 0;
padding: 0;
font-size: 13px;
font-weight: bold;
color: #fff;
}
.modal-bg{
position: absolute;
left: 0px;
top: 0px;
width: 100%;
background: #48525e;
opacity: 0.4;
z-index: 10;
}
.modal{
position: relative;
z-index: 99;
opacity: 1;
top: 15%;
left: 40%;
width: 600px;
height: 400px;
}
.modal .title .tips-bg{
position: absolute;
bottom: 0px;
left: 0px;
background: #48525e;
width: 100%;
height: 50px;
opacity: 0.8;
}
.modal .title .tips{
position: absolute;
bottom: 13px;
left: 10px;
font-family: "Arial";
font-weight: bold;
font-size: 20px;
}
.modal .title .close{
background: url(img/close.png) no-repeat;
width: 27px;
height: 27px;
position: absolute;
top: 5px;
right: 5px;
}
.modal .title .close:hover{
cursor: pointer;
}
.container{
position: absolute;
top: 200px;
text-align: center;
width: 100%;
z-index: 5;
}
.image-list{
width:300px;
margin-left: 40%;
position: relative;
}
#prev{
display: none;
position: absolute;
top: 55px;
left: 35px;
float: left;
width: 45px;
height: 50px;
background: url(img/prev.png);
}
#next{
position: absolute;
top: 55px;
right: 40px;
width: 45px;
height: 50px;
background: url(img/next.png);
}
#prev:hover,#next:hover{
cursor: pointer;
}
.thumb-a{
display:inline-block;
padding:4px;
margin:0 0.5rem 1rem 0.5rem 1rem;
line-height:0;
-webkit-transition:background-color 0.1s ease-out;
-moz-transition:background-color 0.1s ease-out;
-o-transition:background-color 0.1s ease-out;
transition:background-color 0.1s ease-out;
-webkit-border-radius:6px;
-moz-border-radius:6px;
-ms-border-radius:6px;
-o-border-radius:6px;
border-radius:6px
}
.thumb-a:hover{
background-color:#4ae;
cursor: pointer;
}
.thumb-a-hide{
display: none;
}
.thumb-img{
-webkit-border-radius:5px;
-moz-border-radius:5px;
-ms-border-radius:5px;
-o-border-radius:5px;
border-radius:5px
}
</style>
<script src="js/jquery-1.8.3.js"></script>
<script>
var imgIndex = 1;
function showImg(index){
var width=600,height=400;
var winWidth = $(window).width(),winHeight = $(window).height();
var modalBg = $("<div></div>");
modalBg.addClass("modal-bg");
modalBg.appendTo($('body'));
var modal = $("<div></div>");
modal.addClass("modal");
modal.css("position","absolute")
.css("top",(winHeight-height)/2+"px")
.css("left",(winWidth-width)/2+"px");
var titleTipsBg = $("<div></div>").addClass("tips-bg");
var titleTips = $("<a></a>").addClass("tips").html("I am a Chinese.");
var titleClose = $("<a></a>").addClass("close");
var title = $("<div></div>");
title.addClass("title");
title.append(titleTipsBg)
.append(titleTips)
.append(titleClose);
titleClose.on("click",function(){
modalBg.hide();
modal.hide();
});
title.appendTo(modal);
var img = $("<img>").attr("width",width)
.attr("height",height)
.attr("src","img/demopage/image-"+index+".jpg");
var imgDiv = $("<div></div>").append(img);
imgDiv.appendTo(modal);
modal.appendTo($('body'));
}
function updateImage(type){
if(type==="prev"){
if(imgIndex>1){
imgIndex=imgIndex-1;
}
}
else{
if(imgIndex<3){
imgIndex=imgIndex+1;
}
}
for(var i=0;i<3;i++){
$("#img"+(i+1)).addClass("thumb-a-hide");
}
$("#img"+imgIndex).removeClass("thumb-a-hide");
if(imgIndex===3){
$("#next").hide();
}
else{
$("#next").show();
}
if(imgIndex===1){
$("#prev").hide();
}
else{
$("#prev").show();
}
};
</script>
</head>
<body>
<div class="container">
<div class="image-list">
<div id="prev" onclick="updateImage('prev')"></div>
<a id="img1" class="thumb-a" onclick="showImg(1)">
<img class="thumb-img" width="200" height="150" src="img/demopage/thumb-1.jpg" alt="" />
</a>
<a id="img2" class="thumb-a thumb-a-hide" onclick="showImg(2)">
<img class="thumb-img" width="200" height="150" src="img/demopage/thumb-2.jpg" alt="" />
</a>
<a id="img3" class="thumb-a thumb-a-hide" onclick="showImg(3)">
<img class="thumb-img" width="200" height="150" src="img/demopage/thumb-3.jpg" alt="" />
</a>
<div id="next" onclick="updateImage('next')"></div>
</div>
</div>
</body>
</html>
如有疑问请联系：
QQ：1004740957
Emai：[email protected]
时间： 2024-10-12 20:44:51