JavaScript监听触摸事件代码实例
程序员文章站
2022-06-17 15:14:13
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
<...
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) ? (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" 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) ? (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：
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。
上一篇： vue的小白进阶