Home >Web Front-end >HTML Tutorial >web mobile touch sliding event_html/css_WEB-ITnose
web mobile touch sliding event_html/css_WEB-ITnose
- WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOriginal
- 2016-06-24 11:43:071899browse
Example of web mobile touch event~~~
Note: 1. If it is not an inline element, you need to assign a value before getting the attribute value of style ~ otherwise it will be Null.
2. Personally tested the built-in browser of andriod mobile phone MX4 and it runs perfectly~~ but the WeChat browser does not support it~ The reason has not been found.
1 <!DOCTYPE html> 2 <html> 3 <head> 4 <meta http-equiv="Content-Type" Content="text/html; charset=utf-8;"> 5 <title>web移动端触摸滑动事件</title> 6 <meta name="description" content="web移动端触摸滑动事件"/> 7 <meta name="viewport" content="user-scalable=no"> 8 </head> 9 <body>10 <div style="position:relative;left:10px;top:10px;height: 100px;width: 200px;background: blue;" id="slider"></div>11 <script>12 var slider = {13 //判断设备是否支持touch事件14 touch: ('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch,15 slider: document.getElementById('slider'),16 //事件17 events: {18 slider: this.slider, //this为slider对象19 handleEvent: function (event) {20 var self = this; //this指events对象21 if (event.type == 'touchstart') {22 self.start(event);23 } else if (event.type == 'touchmove') {24 self.move(event);25 } else if (event.type == 'touchend') {26 self.end(event);27 }28 },29 //touchstart30 start: function (event) {31 event.preventDefault(); //阻止浏览器的默认事件32 var touch = event.targetTouches[0]; //touches数组对象获得屏幕上所有的touch，取第一个touch33 startPos = {x: touch.clientX, y: touch.clientY}; //取第一个touch的坐标值34 sliderX = parseInt(this.slider.style.left); //获取触摸时滑动块的初始位置35 sliderY = parseInt(this.slider.style.top);36 this.slider.addEventListener('touchmove', this, false);37 this.slider.addEventListener('touchend', this, false);38 },39 //touchmove40 move: function (event) {41 //当屏幕有多个touch或者页面被缩放过，就不执行move操作42 if (event.targetTouches.length > 1 || event.scale && event.scale !== 1) return;43 var touch = event.targetTouches[0];44 endPos = {x: touch.clientX - startPos.x, y: touch.clientY - startPos.y}; //获取所移动的距离45 event.preventDefault(); //阻止触摸事件的默认行为，即阻止滚屏46 this.slider.style.left = (sliderX + endPos.x ) + 'px';47 this.slider.style.top = (sliderY + endPos.y) + 'px';48 49 },50 //滑动释放51 end: function (event) {52 //解绑事件53 this.slider.removeEventListener('touchmove', this, false);54 this.slider.removeEventListener('touchend', this, false);55 }56 },57 58 //初始化59 init: function () {60 var self = this; //this指slider对象61 if (!!self.touch) self.slider.addEventListener('touchstart', self.events, false); //addEventListener第二个参数可以传一个对象，会调用该对象的handleEvent属性62 }63 };64 slider.init();65 </script>66 </body>67 </html>
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn