weui框架实现上传、预览和删除图片功能代码
程序员文章站
2022-09-08 21:58:39
jquery weui 是专为微信公众账号开发而设计的一个简洁而强大的ui库，包含全部weui官方的css组件，并且额外提供了大量的拓展组件，丰富的组件库可以极大减少前端开...
jquery weui 是专为微信公众账号开发而设计的一个简洁而强大的ui库，包含全部weui官方的css组件，并且额外提供了大量的拓展组件，丰富的组件库可以极大减少前端开发时间。
jquery weui 的最大特点是它只提供ui组件，并不会对项目所使用的框架和其他库有任何的限制，几乎可以在任何环境下使用。无论你的项目是基于jquery，还是 react, angular, vue， 你都会发现 jquery weui 能非常方便的和他们结合使用。既是你的项目是一个有很悠久历史的老项目，也几乎可以做到拿来即用。
weui框架暂时只有css文件，并没有js文件实现其功能，我在其html+css后面增加了js实现其功能，为大家提供方便，也为自己保存记录。
<!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="external nofollow" rel="stylesheet" />
<link rel="stylesheet" href="weui.min.css" rel="external nofollow" rel="external nofollow" />
<link rel="stylesheet" href="jquery-weui.css" rel="external nofollow" rel="external nofollow" />
</head>
<body>
<div class="weui-gallery" id="gallery">
<span class="weui-gallery__img" id="galleryimg"></span>
<div class="weui-gallery__opr">
<a href="javascript:" rel="external nofollow" class="weui-gallery__del">
<i class="weui-icon-delete weui-icon_gallery-delete"></i>
</a>
</div>
</div>
<div class="weui-cells weui-cells_form">
<div class="weui-cell">
<div class="weui-cell__bd">
<div class="weui-uploader">
<div class="weui-uploader__hd">
<p class="weui-uploader__title">图片上传</p>
<div class="weui-uploader__info">0/2</div>
</div>
<div class="weui-uploader__bd">
<ul class="weui-uploader__files" id="uploaderfiles">
<li class="weui-uploader__file" style="background-image:url(../images/applogo180x180.png)"></li>
<li class="weui-uploader__file" style="background-image:url(../images/applogo180x180.png)"></li>
<li class="weui-uploader__file" style="background-image:url(../images/applogo180x180.png)"></li>
<li class="weui-uploader__file weui-uploader__file_status" style="background-image:url(../images/applogo180x180.png)">
<div class="weui-uploader__file-content">
<i class="weui-icon-warn"></i>
</div>
</li>
<li class="weui-uploader__file weui-uploader__file_status" style="background-image:url(../images/applogo180x180.png)">
<div class="weui-uploader__file-content">50%</div>
</li>
</ul>
<div class="weui-uploader__input-box">
<input id="uploaderinput" class="weui-uploader__input zjxfjs_file" type="file" accept="image/*" multiple="">
</div>
</div>
</div>
</div>
</div>
</div>
<script src="../js/mui.min.js"></script>
<script type="text/javascript" src="jquery-2.1.4.js"></script>
<script type="text/javascript" src="jquery-weui.js"></script>
<script type="text/javascript">
mui.init();
$(function() {
var tmpl = '<li class="weui-uploader__file" style="background-image:url(#url#)"></li>',
$gallery = $("#gallery"),
$galleryimg = $("#galleryimg"),
$uploaderinput = $("#uploaderinput"),
$uploaderfiles = $("#uploaderfiles");
$uploaderinput.on("change", function(e) {
var src, url = window.url || window.webkiturl || window.mozurl,
files = e.target.files;
for(var i = 0, len = files.length; i < len; ++i) {
var file = files[i];
if(url) {
src = url.createobjecturl(file);
} else {
src = e.target.result;
}
$uploaderfiles.append($(tmpl.replace('#url#', src)));
}
});
var index; //第几张图片
$uploaderfiles.on("click", "li", function() {
index = $(this).index();
$galleryimg.attr("style", this.getattribute("style"));
$gallery.fadein(100);
});
$gallery.on("click", function() {
$gallery.fadeout(100);
});
//删除图片 删除图片的代码也贴出来。
$(".weui-gallery__del").click(function() { //这部分刚才放错地方了，放到$(function(){})外面去了
console.log('删除');
$uploaderfiles.find("li").eq(index).remove();
});
});
</script>
</body>
</html>
补充说明上述代码中引用以下的这四个文件可以到这个weui的官网去下载
<link rel="stylesheet" href="weui.min.css" rel="external nofollow" rel="external nofollow" /> <link rel="stylesheet" href="jquery-weui.css" rel="external nofollow" rel="external nofollow" /> <script type="text/javascript" src="jquery-2.1.4.js"> </script><script type="text/javascript" src="jquery-weui.js"></script>
总结
以上所述是小编给大家介绍的weui框架实现上传、预览和删除图片功能代码，希望对大家有所帮助