JavaScript的监听触摸事件
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) ? (startX - changeX > 0 ? 'Left' : 'Right') : (startY - changeY > 0 ? 'Up' : 'Down')
}
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);
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" /> </head> <body> <div class="page page-1-1 page-current"> <div class="wrap"> 1 </div> </div> <div class="page page-2-1 hide"> <div class="wrap"> 2 </div> </div> <div class="page page-2-2 hide"> <div class="wrap"> 3 </div> </div> <div class="page page-3-1 hide"> <div class="wrap"> 4 </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) ? (startX - changeX > 0 ? 'Left' : 'Right') : (startY - changeY > 0 ? 'Up' : 'Down') } 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); 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
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