1.分享一个好用的h5移动端图片预览插件，直接上代码：在你的项目中引入imageReview.js文件，如下：
var reviewHtml='<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">'+ '<div class="pswp__bg"></div>'+ '<div class="pswp__scroll-wrap">'+ '<div class="pswp__container">'+ '<div class="pswp__item"></div>'+ '<div class="pswp__item"></div>'+ '<div class="pswp__item"></div>'+ '</div>'+ '<div class="pswp__ui pswp__ui--hidden">'+ '<div class="pswp__top-bar">'+ '<div class="pswp__counter"></div>'+ '<button class="pswp__button pswp__button--close" title="Close (Esc)"></button>'+ '<button class="pswp__button pswp__button--fs" title="Toggle fullscreen"></button>'+ '<button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>'+ '<div class="pswp__preloader">'+ '<div class="pswp__preloader__icn">'+ '<div class="pswp__preloader__cut">'+ '<div class="pswp__preloader__donut"></div>'+ '</div>'+ '</div>'+ '</div>'+ '</div>'+ '<div class="pswp__share-modal pswp__share-modal--hidden pswp__single-tap">'+ '<div class="pswp__share-tooltip"></div>'+ '</div>'+ '<button class="pswp__button pswp__button--arrow--left" title="Previous (arrow left)">'+ '</button>'+ '<button class="pswp__button pswp__button--arrow--right" title="Next (arrow right)">'+ '</button>'+ '<div class="pswp__caption">'+ '<div class="pswp__caption__center"></div>'+ '</div>'+ '</div>'+ '</div>'+ '</div>'; $('body').append(reviewHtml); //预览图片 var initPhotoSwipeFromDOM = function(gallerySelector) { // 解析来自DOM元素幻灯片数据（URL，标题，大小...） var parseThumbnailElements = function(el) { var thumbElements = el.childNodes, numNodes = thumbElements.length, items = [], figureEl, linkEl, size, item, divEl; for(var i = 0; i < numNodes; i++) { figureEl = thumbElements[i]; // <figure> element // 仅包括元素节点 if(figureEl.nodeType !== 1) { continue; } divEl = figureEl.children[0]; linkEl = divEl.children[0]; // <a> element // 创建幻灯片对象 var img = linkEl.children[0]; item = { src: linkEl.getAttribute('href'), w: parseInt(img.naturalWidth, 10), h: parseInt(img.naturalHeight, 10) }; if(figureEl.children.length > 1) { item.title = figureEl.children[1].innerHTML; } if(linkEl.children.length > 0) { // <img> 缩略图节点, 检索缩略图网址 item.msrc = linkEl.children[0].getAttribute('src'); } item.el = figureEl; // 保存链接元素 for getThumbBoundsFn items.push(item); } return items; }; // 查找最近的父节点 var closest = function closest(el, fn) { return el && ( fn(el) ? el : closest(el.parentNode, fn) ); }; // 当用户点击缩略图触发 var onThumbnailsClick = function(e) { e = e || window.event; e.preventDefault ? e.preventDefault() : e.returnValue = false; var eTarget = e.target || e.srcElement; var clickedListItem = closest(eTarget, function(el) { return (el.tagName && el.tagName.toUpperCase() === 'FIGURE'); }); if(!clickedListItem) { return; } var clickedGallery = clickedListItem.parentNode, childNodes = clickedListItem.parentNode.childNodes, numChildNodes = childNodes.length, nodeIndex = 0, index; for (var i = 0; i < numChildNodes; i++) { if(childNodes[i].nodeType !== 1) { continue; } if(childNodes[i] === clickedListItem) { index = nodeIndex; break; } nodeIndex++; } if(index >= 0) { openPhotoSwipe( index, clickedGallery ); } return false; }; var photoswipeParseHash = function() { var hash = window.location.hash.substring(1), params = {}; if(hash.length < 5) { return params; } var vars = hash.split('&'); for (var i = 0; i < vars.length; i++) { if(!vars[i]) { continue; } var pair = vars[i].split('='); if(pair.length < 2) { continue; } params[pair[0]] = pair[1]; } if(params.gid) { params.gid = parseInt(params.gid, 10); } return params; }; var openPhotoSwipe = function(index, galleryElement, disableAnimation, fromURL) { var pswpElement = document.querySelectorAll('.pswp')[0], gallery, options, items; items = parseThumbnailElements(galleryElement); // 这里可以定义参数 options = { barsSize: { top: 100, bottom: 100 }, fullscreenEl : false, shareButtons: [ {id:'wechat', label:'分享微信', url:'#'}, {id:'weibo', label:'新浪微博', url:'#'}, {id:'download', label:'保存图片', url:'{{raw_image_url}}', download:true} ], galleryUID: galleryElement.getAttribute('data-pswp-uid'), getThumbBoundsFn: function(index) { var thumbnail = items[index].el.getElementsByTagName('img')[0], // find thumbnail pageYScroll = window.pageYOffset || document.documentElement.scrollTop, rect = thumbnail.getBoundingClientRect(); return {x:rect.left, y:rect.top + pageYScroll, w:rect.width}; } }; if(fromURL) { if(options.galleryPIDs) { for(var j = 0; j < items.length; j++) { if(items[j].pid == index) { options.index = j; break; } } } else { options.index = parseInt(index, 10) - 1; } } else { options.index = parseInt(index, 10); } if( isNaN(options.index) ) { return; } if(disableAnimation) { options.showAnimationDuration = 0; } gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options); gallery.init(); }; var galleryElements = document.querySelectorAll( gallerySelector ); for(var i = 0, l = galleryElements.length; i < l; i++) { galleryElements[i].setAttribute('data-pswp-uid', i+1); galleryElements[i].onclick = onThumbnailsClick; } var hashData = photoswipeParseHash(); if(hashData.pid && hashData.gid) { openPhotoSwipe( hashData.pid , galleryElements[ hashData.gid - 1 ], true, true ); } }; function stopHref(event){ event.preventDefault(); return false; }2.接着在你的html中按照这样的格式渲染图片就ok了
<div class="my-gallery" data-pswp-uid="1"> <figure style="height: 74px;width: 74px;float: left;margin: 0px 20px 10px 0;"> <div class="img-dv worker-photo"> <a href="http://img0.imgtn.bdimg.com/it/u=151472226,3497652000&fm=26&gp=0.jpg" onclick="stopHref(event)"> <img src="http://img0.imgtn.bdimg.com/it/u=151472226,3497652000&fm=26&gp=0.jpg" width="74" height="74" style="border-radius:6px;"> </a> </div> </figure> <figure style="height: 74px;width: 74px;float: left;margin: 0px 20px 10px 0;"> <div class="img-dv worker-photo"> <a href="http://img0.imgtn.bdimg.com/it/u=151472226,3497652000&fm=26&gp=0.jpg" onclick="stopHref(event)"> <img src="http://img0.imgtn.bdimg.com/it/u=151472226,3497652000&fm=26&gp=0.jpg" width="74" height="74" style="border-radius:6px;"> </a> </div> </figure> </div>附上效果图：
