• hammer.js方法总结(只做了一个简单的demo)


    html

    <!DOCTYPE html>
    <html>
    
    	<head>
    		<meta charset="UTF-8">
    		<title></title>
    		<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
    		<style>
    			.demo-box {
    				 300px;
    				height: 300px;
    				overflow: hidden;
    				position: relative;
    			}
    			
    			.demo-box img {
    				height: 500px;
    				 1900px;
    				position: absolute;
    				margin-left: -950px;
    				pointer-events: none;
    				margin-top: -220px;
    				left: 50%;
    				top: 50%;
    				max- none;
    			}
    			
    			.demo-box img.active {
    				display: block;
    			}
    			
    			.demo-box .page-num {
    				position: absolute;
    				bottom: 5px;
    				left: 50%;
    				margin-left: -20px;
    				color: white;
    				z-index: 999;
    				background: rgba(170, 170, 170, 0.5);
    				padding: 3px;
    				border-radius: 5px;
    				border: 1px solid black;
    				pointer-events: none;
    			}
    			
    			.page-num .active {
    				color: red;
    			}
    			
    			.demo-box .page-num {
    				color: white;
    				pointer-events: none;
    			}
    			
    			.demo img {
    				display: inline-block;
    			}
    			
    			.box img {
    				display: none;
    			}
    			
    			.demo-overlay {
    				position: absolute;
    				top: 0;
    				left: 0;
    				right: 0;
    				bottom: 0;
    				background: rgba(70, 70, 70, 0.8);
    				display: none;
    			}
    			
    			.demo-overlay img {
    				 50px;
    				height: 50px;
    				position: absolute;
    				top: 50%;
    				left: 50%;
    				margin-left: -25px;
    				margin-top: -25px;
    			}
    		</style>
    	</head>
    
    	<body class="homepage">
    		<div class="pan demo-box demo">
    			<img src="img/box.png" />
    		</div>
    		<br />
    		<br />
    		<br />
    		<br />
    		<div class="pinch demo-box demo">
    			<img src="img/box.png" />
    		</div>
    		<br />
    		<br />
    		<br />
    		<br />
    		<div class="rotate demo-box demo">
    			<img src="img/box.png" />
    		</div>
    		<br />
    		<br />
    		<br />
    		<br />
    		<div class="swipe demo-box box">
    			<img src="img/xsqy.png" class="active" />
    			<img src="img/jfsc.png" />
    			<img src="img/fx.png" />
    			<div class="page-num">
    				<span class="active">1</span>
    				<span class="">2</span>
    				<span class="">3</span>
    			</div>
    		</div>
    		<br />
    		<br />
    		<br />
    		<br />
    		<div class="tap demo-box box">
    			<img src="img/xsqy.png" class="active" />
    			<img src="img/jfsc.png" />
    			<img src="img/fx.png" />
    			<div class="page-num">
    				<span class="active">1</span>
    				<span class="">2</span>
    				<span class="">3</span>
    			</div>
    		</div>
    		<br />
    		<br />
    		<br />
    		<br />
    		<div class="press demo-box demo">
    			<img src="img/box.png" />
    			<div class="demo-overlay">
    				<img src="img/shouhuodizhicheckz.png">
    			</div>
    		</div>
    	</body>
    	<script type="text/javascript" src="js/jquery.min.js"></script>  //自行下载
    	<script type="text/javascript" src="js/hammer.js"></script>  //自行下载
    	<script type="text/javascript" src="js/hammer-index.js"></script>  //以下代码
    
    </html>
    

     hammer-index.js

    $(function() {
    	(function() {
    		var img, margin;
    		new Hammer($(".pan")[0], {
    			domEvents: true
    		});
    		$(".pan").on("panstart", function(e) {
    			img = $(".pan img");
    			margin = parseInt(img.css("margin-left"), 10);
    		});
    		$(".pan").on("pan", function(e) {
    			var delta = margin + e.originalEvent.gesture.deltaX;
    			console.log(delta);
    			if(delta >= -1750 && delta <= -150) {
    				img.css({
    					"margin-left": margin + e.originalEvent.gesture.deltaX
    				});
    			}
    		});
    	})();
    	// pinch
    	(function() {
    		var ham = new Hammer($(".pinch")[0], {
    			domEvents: true
    		});
    		var width = $(window).width();
    		var height = $(window).height();
    		var left = 950;
    		var top = 220;
    		ham.get('pinch').set({
    			enable: true
    		});
    		$(".pinch").on("pinch", function(e) {
    			console.log("pinch");
    			if(width * e.originalEvent.gesture.scale >= 300) {
    				$(this).find("img").css({
    					 width * e.originalEvent.gesture.scale,
    					"margin-left": -left * e.originalEvent.gesture.scale,
    					height: height * e.originalEvent.gesture.scale,
    					"margin-top": -top * e.originalEvent.gesture.scale
    				});
    			}
    			console.log(e.originalEvent.gesture.scale);
    		});
    		$(".pinch").on("pinchend", function(e) {
    			width = width * e.originalEvent.gesture.scale;
    			height = height * e.originalEvent.gesture.scale;
    			left = left * e.originalEvent.gesture.scale;
    			top = top * e.originalEvent.gesture.scale;
    			console.log(width);
    		});
    	})();
    
    	// rotate
    	(function() {
    		var ham = new Hammer($(".rotate")[0], {
    			domEvents: true
    		});
    		var liveScale = 1;
    		var currentRotation = 0;
    
    		ham.get('rotate').set({
    			enable: true
    		});
    		$(".rotate").on("rotate", function(e) {
    			alert(1)
    			var rotation = currentRotation + Math.round(liveScale * e.originalEvent.gesture.rotation);
    			$(this).find("img").css("transform", "rotate( " + rotation + "deg)");
    		});
    		$(".rotate").on("rotateend", function(e) {
    			currentRotation += Math.round(e.originalEvent.gesture.rotation);
    		});
    	})();
    
    	(function() {
    		new Hammer($(".swipe")[0], {
    			domEvents: true
    		});
    		var current = 0;
    		var imgs = $(".demo-box.swipe img");
    		var pages = $(".swipe .page-num span");
    		$(".swipe").on("swipeleft", function(e) {
    			if(imgs[current + 1]) {
    				imgs.removeClass("active");
    				imgs.eq(++current).addClass("active");
    				pages.removeClass("active");
    				pages.eq(current).addClass("active");
    			}
    		});
    		$(".swipe").on("swiperight", function(e) {
    			if(imgs[current - 1]) {
    				imgs.removeClass("active");
    				imgs.eq(--current).addClass("active");
    				pages.removeClass("active");
    				pages.eq(current).addClass("active");
    			}
    		});
    	})();
    
    	// tap
    	(function() {
    		new Hammer($(".tap")[0], {
    			domEvents: true
    		});
    		var current = 0;
    		var imgs = $(".demo-box.tap img");
    		var pages = $(".tap .page-num span");
    		$(".tap").on("tap", function(e) {
    			console.log("tap");
    			if(imgs[current + 1]) {
    				current++;
    			} else {
    				current = 0;
    			}
    			console.log(current);
    			imgs.removeClass("active");
    			imgs.eq(current).addClass("active");
    			pages.removeClass("active");
    			pages.eq(current).addClass("active");
    		});
    	})();
    
    	// press
    	(function() {
    		new Hammer($(".press")[0], {
    			domEvents: true
    		});
    		$(".press").on("press", function(e) {
    			$(".demo-overlay").toggle();
    		});
    	})();
    })
    
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  • 原文地址:https://www.cnblogs.com/gqx-html/p/7149660.html
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