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这篇文章主要介绍了JavaScript监听触摸事件代码实例,文中通过示例代码介绍的非常详细,对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
监听
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no"> <title>Wsscat滑动事件Demo</title> </head> <body> <article>上下左右滑动</article> </body> <style> * { margin: 0; padding: 0; } article { background-color: #000000; width: 100%; height: 100px; text-align: center; line-height: 100px; color: #FFFFFF; } </style> <script> (function() { var touch = {}; function direction(startX, changeX, startY, changeY) { return Math.abs(startX - changeX) >= Math.abs(startY - changeY) "点击时的X坐标" + nStartX + "和Y坐标" + nStartY); }); document.getElementsByTagName('body')[0].addEventListener('touchmove', function(e) { touch.whenChangY = e.changedTouches[0].pageY; touch.whenChangX = e.changedTouches[0].pageX; //console.log("滑动时的X坐标" + nWhenChangX + "和Y坐标" + nWhenChangY); }) document.getElementsByTagName('body')[0].addEventListener('touchend', function(e) { touch.changY = e.changedTouches[0].pageY; touch.changX = e.changedTouches[0].pageX; //console.log("滑动后的X坐标" + nChangX + "和Y坐标" + nChangY); var swDirection = direction(touch.startX, touch.changX, touch.startY, touch.changY); console.log(swDirection); }) })() </script> </html>
触摸
<!--touchstart 在触摸开始时触发事件 touchend 在触摸结束时触发事件 touchmove 在触摸期间时触发事件--> <!DOCTYPE html> <html lang="zh-cn" class="no-js"> <head> <meta http-equiv="Content-Type"> <meta content="text/html; charset=utf-8"> <meta charset="utf-8"> <title></title> <meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no"> <meta name="format-detection" content="telephone=no"> <meta name="format-detection" content="email=no"> <link rel="stylesheet" type="text/css" href="css/reset.css" rel="external nofollow" /> </head> <body> <div class="page page-1-1 page-current"> <div class="wrap"> </div> </div> <div class="page page-2-1 hide"> <div class="wrap"> </div> </div> <div class="page page-2-2 hide"> <div class="wrap"> </div> </div> <div class="page page-3-1 hide"> <div class="wrap"> </div> </div> </body> <script> (function() { var now = { row: 1, col: 1 }, last = { row: 0, col: 0 }; const towards = { up: 1, right: 2, down: 3, left: 4 }; var isAnimating = false; var touch = {}; function direction(startX, changeX, startY, changeY) { return Math.abs(startX - changeX) >= Math.abs(startY - changeY) "点击时的X坐标" + nStartX + "和Y坐标" + nStartY); }); document.getElementsByTagName('body')[0].addEventListener('touchmove', function(e) { touch.whenChangY = e.changedTouches[0].pageY; touch.whenChangX = e.changedTouches[0].pageX; //console.log("滑动时的X坐标" + nWhenChangX + "和Y坐标" + nWhenChangY); }) document.getElementsByTagName('body')[0].addEventListener('touchend', function(e) { touch.changY = e.changedTouches[0].pageY; touch.changX = e.changedTouches[0].pageX; //console.log("滑动后的X坐标" + nChangX + "和Y坐标" + nChangY); var swDirection = direction(touch.startX, touch.changX, touch.startY, touch.changY); console.log(swDirection); //以回调的方法来写这个动作 if(swDirection == 'Up') { swipeUp(function() { if(isAnimating) return; last.row = now.row; last.col = now.col; if(now.col == 2) { return; } else if(last.row != 6) { now.row = last.row + 1; now.col = 1; pageMove(towards.up); } }) } if(swDirection == 'Down') { if(isAnimating) return; last.row = now.row; last.col = now.col; if(now.col == 2) { return; } else if(last.row != 1) { now.row = last.row - 1; now.col = 1; pageMove(towards.down); } } if(swDirection == 'Left') { if(isAnimating) return; last.row = now.row; last.col = now.col; if(last.row > 1 && last.row < 5 && last.col == 1) { now.row = last.row; now.col = 2; pageMove(towards.left); } } if(swDirection == 'Right') { if(isAnimating) return; last.row = now.row; last.col = now.col; if(last.row > 1 && last.row < 5 && last.col == 2) { now.row = last.row; now.col = 1; pageMove(towards.right); } } }) function swipeUp(callback) { callback() } function hasClass(obj, cls) { return obj.className.match(new RegExp('(\\s|^)' + cls + '(\\s|$)')); } console.log(window.document) function addClass(obj, cls) { if(!hasClass(obj, cls)) obj.className += " " + cls; } function removeClass(obj, cls) { if(hasClass(obj, cls)) { var reg = new RegExp('(\\s|^)' + cls + '(\\s|$)'); obj.className = obj.className.replace(reg, ' '); } } function toggleClass(obj, cls) { if(hasClass(obj, cls)) { removeClass(obj, cls); } else { addClass(obj, cls); } } function pageMove(tw) { console.log(now); console.log(now); var lastPage = ".page-" + last.row + "-" + last.col, nowPage = ".page-" + now.row + "-" + now.col; switch(tw) { case towards.up: outClass = 'pt-page-moveToTop'; inClass = 'pt-page-moveFromBottom'; break; case towards.right: outClass = 'pt-page-moveToRight'; inClass = 'pt-page-moveFromLeft'; break; case towards.down: outClass = 'pt-page-moveToBottom'; inClass = 'pt-page-moveFromTop'; break; case towards.left: outClass = 'pt-page-moveToLeft'; inClass = 'pt-page-moveFromRight'; break; } isAnimating = true; var $nowPage = document.querySelector(nowPage); var $lastPage = document.querySelector(lastPage); console.log($nowPage); removeClass($nowPage, "hide"); addClass($lastPage, outClass) addClass($nowPage, inClass); setTimeout(function() { removeClass($lastPage, 'page-current'); removeClass($lastPage, outClass); addClass($lastPage, "hide"); addClass($nowPage, 'page-current'); removeClass($nowPage, inClass); isAnimating = false; }, 600); } })() </script> <style> body { width: 100%; overflow: hidden; } .page { width: 100%; height: 100%; position: absolute; font-size: 100px; text-align: center; } .page .wrap { height: 500px; } .page-1-1 { background-image: url(img/background/1.png); background-size: cover; } .page-2-1 { background-image: url(img/background/1.png); background-size: cover; } .page-2-2 { background-image: url(img/background/1.png); background-size: cover; } .page-3-1 { background-image: url(img/background/1.png); background-size: cover; } .page-3-2 { background-image: url(img/background/1.png); background-size: cover; } .page-4-1 { background-image: url(img/background/1.png); background-size: cover; } .page-4-2 { background-image: url(img/background/1.png); background-size: cover; } .page-5-1 { background-image: url(img/background/1.png); background-size: cover; } .page-current { z-index: 1; } .hide { display: none; } .pt-page-moveToTop { -webkit-animation: moveToTop .6s ease both; animation: moveToTop .6s ease both; } @-webkit-keyframes moveToTop { from {} to { -webkit-transform: translateY(-100%); } } .pt-page-moveFromBottom { -webkit-animation: moveFromBottom .6s ease both; animation: moveFromBottom .6s ease both; } @-webkit-keyframes moveFromBottom { from { -webkit-transform: translateY(100%); } } .pt-page-moveToBottom { -webkit-animation: moveToBottom .6s ease both; animation: moveToBottom .6s ease both; } @-webkit-keyframes moveToBottom { from {} to { -webkit-transform: translateY(100%); } } .pt-page-moveFromTop { -webkit-animation: moveFromTop .6s ease both; animation: moveFromTop .6s ease both; } @-webkit-keyframes moveFromTop { from { -webkit-transform: translateY(-100%); } } .pt-page-moveToRight { -webkit-animation: moveToRight .6s ease both; animation: moveToRight .6s ease both; } @-webkit-keyframes moveToRight { from {} to { -webkit-transform: translateX(100%); } } .pt-page-moveToLeft { -webkit-animation: moveToLeft .6s ease both; animation: moveToLeft .6s ease both; } @-webkit-keyframes moveToLeft { from {} to { -webkit-transform: translateX(-100%); } } </style> </html>
触摸前后
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> </head> <body> <!--利用touchstart和touchend触摸前后监听到的四个坐标分别是触摸前的x,y坐标和触摸后的x,y坐标, 然后用数学公式进行运算得出方向--> </body> <script type="text/javascript"> document.getElementsByTagName('body')[0].addEventListener('touchstart', function(e) { touch.startY = e.targetTouches[0].pageY; touch.startX = e.targetTouches[0].pageX; //console.log("点击时的X坐标" + nStartX + "和Y坐标" + nStartY); }); document.getElementsByTagName('body')[0].addEventListener('touchmove', function(e) { touch.whenChangY = e.changedTouches[0].pageY; touch.whenChangX = e.changedTouches[0].pageX; //console.log("滑动时的X坐标" + nWhenChangX + "和Y坐标" + nWhenChangY); }) document.getElementsByTagName('body')[0].addEventListener('touchend', function(e) { touch.changY = e.changedTouches[0].pageY; touch.changX = e.changedTouches[0].pageX; //console.log("滑动后的X坐标" + nChangX + "和Y坐标" + nChangY); var swDirection = direction(touch.startX, touch.changX, touch.startY, touch.changY); </script> </html>
GitHub地址:https://github.com/lianglixiong
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。
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RTX 5090要首发 性能要翻倍!三星展示GDDR7显存
三星在GTC上展示了专为下一代游戏GPU设计的GDDR7内存。
首次推出的GDDR7内存模块密度为16GB,每个模块容量为2GB。其速度预设为32 Gbps(PAM3),但也可以降至28 Gbps,以提高产量和初始阶段的整体性能和成本效益。
据三星表示,GDDR7内存的能效将提高20%,同时工作电压仅为1.1V,低于标准的1.2V。通过采用更新的封装材料和优化的电路设计,使得在高速运行时的发热量降低,GDDR7的热阻比GDDR6降低了70%。