h5 - PhotoSwipe图片放大功能集成和使用

说明：

    PhotoSwipe图片放大功能的简单demo。

        

重要代码：

    1、html中引入js和css文件，和一段固定的代码

<!-- PhotoSwipe styles -->
	<link rel="stylesheet prefetch" href="css/photoswipe.css">
	<link rel="stylesheet prefetch" href="css/default-skin/default-skin.css">

<!-- PhotoSwipe -->
<script src="js/photoswipe.js"></script>
<script src="js/photoswipe-ui-default.min.js"></script>
<script type="text/javascript">
	function toBigPic(pos) {
		var pswpElement = document.querySelectorAll('.pswp')[0];

		var items = [];
		var getItems = function () {
			var aDiv = document.getElementById("imgs");
			if (aDiv.hasChildNodes()) {
				for (var i = 0; i < aDiv.children.length; i++) {
					var img = aDiv.children;
					var item = {
						src: img[i].src,
						w: img[i].naturalWidth,
						h: img[i].naturalHeight
					};
					items.push(item);
					console.log(i + "===child====" + (item.src));
					console.log(i + "===child====" + (item.w));
					console.log(i + "===child====" + (item.h));
				}
			}
		};

		getItems();

		// define options (if needed)
		var options = {
			// history & focus options are disabled on CodePen
			// history & focus options are disabled on CodePen
			history: false,
			focus: false,
			index: pos,
			showAnimationDuration: 0,
			hideAnimationDuration: 0

		};

		var gallery = new PhotoSwipe(pswpElement, PhotoSwipeUI_Default, items, options);
		gallery.init();
	}
</script>

<!-- PhotoSwipe 放大图片的固定代码 -->
	<!-- Root element of PhotoSwipe. Must have class pswp. -->
	<div class="pswp" tabindex="-1" role="dialog" aria-hidden="true">

		<!-- Background of PhotoSwipe. 
			 It's a separate element as animating opacity is faster than rgba(). -->
		<div class="pswp__bg"></div>

		<!-- Slides wrapper with overflow:hidden. -->
		<div class="pswp__scroll-wrap">

			<!-- Container that holds slides. 
				PhotoSwipe keeps only 3 of them in the DOM to save memory.
				Don't modify these 3 pswp__item elements, data is added later on. -->
			<div class="pswp__container">
				<div class="pswp__item"></div>
				<div class="pswp__item"></div>
				<div class="pswp__item"></div>
			</div>

			<!-- Default (PhotoSwipeUI_Default) interface on top of sliding area. Can be changed. -->
			<div class="pswp__ui pswp__ui--hidden">

				<div class="pswp__top-bar">

					<!--  Controls are self-explanatory. Order can be changed. -->

					<div class="pswp__counter"></div>

					<button class="pswp__button pswp__button--close" title="Close (Esc)"></button>

					<button class="pswp__button pswp__button--share" title="Share" style="display:none;"></button>

					<button class="pswp__button pswp__button--fs" title="Toggle fullscreen" style="display:none;"></button>

					<button class="pswp__button pswp__button--zoom" title="Zoom in/out"></button>

					<!-- element will get class pswp__preloader--active when preloader is running -->
					<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>
	<!--/ Root element of PhotoSwipe. Must have class pswp. -->

    2、html展示图片和点击大图查看图片、注意一定要写上id="imgs"

<div id="imgs" class="swiper-wrapper">	
			<img class="swiper-slide swiper-center-image" src="image/img-default-biao.png" onclick="toBigPic(0)">
			<img class="swiper-slide swiper-center-image" src="image/img-default-biao-1.jpeg" onclick="toBigPic(1)">
			<img class="swiper-slide swiper-center-image" src="image/img-default-biao-1.jpeg" onclick="toBigPic(2)">
			<img class="swiper-slide swiper-center-image" src="image/img-default-biao-1.jpeg" onclick="toBigPic(3)">
			<img class="swiper-slide swiper-center-image" src="image/img-default-biao-1.jpeg" onclick="toBigPic(4)">
			<img class="swiper-slide swiper-center-image" src="image/img-default-biao-1.jpeg" onclick="toBigPic(5)">
			<img class="swiper-slide swiper-center-image" src="image/img-default-biao-1.jpeg" onclick="toBigPic(6)">
        </div>

完整demo：

    下载地址：https://download.csdn.net/download/u012246458/10449840