一個類似于手機img展示的js插件

photoswipe的官網 http://photoswipe.com/

首先引入插件里的必須文件

<link rel="stylesheet" type="text/css" href="../public/css/default-skin/default-skin.css"/> <link rel="stylesheet" type="text/css" href="../public/css/photoswipe.css"/> <script type="text/javascript" src="../public/js/photoswipe.min.js"></script> <script type="text/javascript" src="../public/js/photoswipe-ui-default.min.js"></script>

頁面布局需要固定格式

<!--data-pswp-uid在每個相冊中必須是唯一的，data-size指定放大時圖片顯示的寬和高--> <div class="my-gallery clearfix" data-pswp-uid="1"><figure ng-repeat="pic in items.imageDetails" ><div class="aixin_pic_con"><a href="{{pic.url}}" data-size="670x712"><img src="img/diary_list01.fw.png" ng-src="{{pic.url}}"></a></div><figcaption style="display:none;" ng-bind="items.crowdTitle">在這里可增加圖片描述</figcaption></figure> </div>

為了在多個頁面實現插件的調用使用 便把所有的代碼寫入一條js里面引入 代碼

固定的html代碼每個想要調用的頁面都需要引入

document.writeln("<!-- Root element of PhotoSwipe. Must have class pswp. -->"); document.writeln("<div class=\"pswp\" tabindex=\"-1\" role=\"dialog\" aria-hidden=\"true\">"); document.writeln(" <!-- Background of PhotoSwipe."); document.writeln(" It\'s a separate element as animating opacity is faster than rgba(). -->"); document.writeln(" <div class=\"pswp__bg\"><\/div>"); document.writeln(" <!-- Slides wrapper with overflow:hidden. -->"); document.writeln(" <div class=\"pswp__scroll-wrap\">"); document.writeln(" <!-- Container that holds slides."); document.writeln(" PhotoSwipe keeps only 3 of them in the DOM to save memory."); document.writeln(" Don\'t modify these 3 pswp__item elements, data is added later on. -->"); document.writeln(" <div class=\"pswp__container\">"); document.writeln(" <div class=\"pswp__item\"><\/div>"); document.writeln(" <div class=\"pswp__item\"><\/div>"); document.writeln(" <div class=\"pswp__item\"><\/div>"); document.writeln(" <\/div>"); document.writeln(" <!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->"); document.writeln(" <div class=\"pswp__ui pswp__ui--hidden\">"); document.writeln(" <div class=\"pswp__top-bar\">"); document.writeln(" <!-- Controls are self-explanatory. Order can be changed. -->"); document.writeln(" <div class=\"pswp__counter\"><\/div>"); document.writeln(" <button class=\"pswp__button pswp__button--close\" title=\"Close (Esc)\"><\/button>"); //document.writeln(" <button class=\"pswp__button pswp__button--share\" title=\"Share\"><\/button>"); document.writeln(" <button class=\"pswp__button pswp__button--fs\" title=\"Toggle fullscreen\"><\/button>"); document.writeln(" <button class=\"pswp__button pswp__button--zoom\" title=\"Zoom in\/out\"><\/button>"); document.writeln(" <!-- Preloader demo http:\/\/codepen.io\/dimsemenov\/pen\/yyBWoR -->"); document.writeln(" <!-- element will get class pswp__preloader--active when preloader is running -->"); document.writeln(" <div class=\"pswp__preloader\">"); document.writeln(" <div class=\"pswp__preloader__icn\">"); document.writeln(" <div class=\"pswp__preloader__cut\">"); document.writeln(" <div class=\"pswp__preloader__donut\"><\/div>"); document.writeln(" <\/div>"); document.writeln(" <\/div>"); document.writeln(" <\/div>"); document.writeln(" <\/div>"); document.writeln(" <div class=\"pswp__share-modal pswp__share-modal--hidden pswp__single-tap\">"); document.writeln(" <div class=\"pswp__share-tooltip\"><\/div>"); document.writeln(" <\/div>"); document.writeln(" <button class=\"pswp__button pswp__button--arrow--left\" title=\"Previous (arrow left)\">"); document.writeln(" <\/button>"); document.writeln(" <button class=\"pswp__button pswp__button--arrow--right\" title=\"Next (arrow right)\">"); document.writeln(" <\/button>"); document.writeln(" <div class=\"pswp__caption\">"); document.writeln(" <div class=\"pswp__caption__center\"><\/div>"); document.writeln(" <\/div>"); document.writeln(" <\/div>"); document.writeln(" <\/div>"); document.writeln("<\/div>");

固定的js調用方法，每個頁面也需要引入

(function() {var initPhotoSwipeFromDOM = function(gallerySelector) { // console.log(gallerySelector)// 解析來自DOM元素幻燈片數據（URL，標題，大小...）// (children of gallerySelector)var parseThumbnailElements = function(el) {var thumbElements = el.childNodes,numNodes = thumbElements.length,items = [],figureEl,linkEl,size,item,divEl;// console.log(el)for(var i = 0; i < numNodes; i++) { figureEl = thumbElements[i]; // <figure> element // 僅包括元素節點 if(figureEl.nodeType !== 1) { continue; } divEl = figureEl.children[0]; linkEl = divEl.children[0]; // <a> element size = linkEl.getAttribute('data-size').split('x'); // 創建幻燈片對象 item = { src: linkEl.getAttribute('href'), w: parseInt(size[0], 10), h: parseInt(size[1], 10) }; if(figureEl.children.length > 1) { // <figcaption> content item.title = figureEl.children[1].innerHTML; } if(linkEl.children.length > 0) { // <img> 縮略圖節點, 檢索縮略圖網址 item.msrc = linkEl.children[0].getAttribute('src'); } item.el = figureEl; // 保存鏈接元素 for getThumbBoundsFn items.push(item); } return items; }; // 查找最近的父節點 var closest = function closest(el, fn) { return el && ( fn(el) ? el : closest(el.parentNode, fn) ); }; // 當用戶點擊縮略圖觸發 var onThumbnailsClick = function(e) { e = e || window.event; e.preventDefault ? e.preventDefault() : e.returnValue = false; var eTarget = e.target || e.srcElement; // console.log(eTarget) // find root element of slide 查找幻燈片的根元素 var clickedListItem = closest(eTarget, function(el) { return (el.tagName && el.tagName.toUpperCase() === 'FIGURE'); }); if(!clickedListItem) { return; } // find index of clicked item by looping through all child nodes 通過遍歷所有子節點，找到單擊項的索引 // alternatively, you may define index via data- attribute 或者，您可以通過data - attribute定義索引 var clickedGallery = clickedListItem.parentNode, childNodes = clickedListItem.parentNode.childNodes, numChildNodes = childNodes.length, nodeIndex = 0, index; // console.log(clickedGallery) for (var i = 0; i < numChildNodes; i++) { if(childNodes[i].nodeType !== 1) { continue; } if(childNodes[i] === clickedListItem) { index = nodeIndex; break; } nodeIndex++; } if(index >= 0) { // open PhotoSwipe if valid index found openPhotoSwipe( index, clickedGallery ); } return false; }; // parse picture index and gallery index from URL (#&pid=1&gid=2) 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); // console.log(galleryElement) // 這里可以定義參數 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:'保存圖片', url:'{{raw_image_url}}', download:true} // ], // define gallery index (for URL) 定義圖庫索引(用于URL) galleryUID: galleryElement.getAttribute('data-pswp-uid'), getThumbBoundsFn: function(index) { // See Options -> getThumbBoundsFn section of documentation for more info 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}; } }; // PhotoSwipe opened from URL PhotoSwipe從URL打開 if(fromURL) { if(options.galleryPIDs) { // parse real index when custom PIDs are used 使用定制pid時解析真實索引 for(var j = 0; j < items.length; j++) { if(items[j].pid == index) { options.index = j; break; } } } else { // in URL indexes start from 1 在URL索引中，從1開始 options.index = parseInt(index, 10) - 1; } } else { options.index = parseInt(index, 10); } // exit if index not found if( isNaN(options.index) ) { return; } if(disableAnimation) { options.showAnimationDuration = 0; } // Pass data to PhotoSwipe and initialize it gallery = new PhotoSwipe( pswpElement, PhotoSwipeUI_Default, items, options); gallery.init(); }; // loop through all gallery elements and bind events var galleryElements = document.querySelectorAll( gallerySelector ); // console.log(galleryElements.length) for(var i = 0, l = galleryElements.length; i < l; i++) { galleryElements[i].setAttribute('data-pswp-uid', i+1); galleryElements[i].onclick = onThumbnailsClick; } // Parse URL and open gallery if it contains #&pid=3&gid=1 var hashData = photoswipeParseHash(); if(hashData.pid && hashData.gid) { openPhotoSwipe( hashData.pid , galleryElements[ hashData.gid - 1 ], true, true ); } }; //延遲后執行 避免開始獲取不到 setTimeout(function(){ // execute above function initPhotoSwipeFromDOM('.my-gallery'); },600) })();

**需要注意的是每個結構必須一致，方法也要在頁面加載以后調用不然點擊以后可能會遇到頁面跳轉道圖片地址的情況。

**可根據自己情況進行改動

總結

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