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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<style>
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*{
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margin:0;
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padding:0;
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}
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.test_img{
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position: relative;
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/*position: absolute;*/
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}
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</style>
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<title>Document</title>
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</head>
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<body>
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<img src="weight1.png" alt="" class="test_img">
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<p id="touch_tips"><p>
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<script>
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JS原生获得手机端手机触摸点坐标并移动图片 方法一
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window.onload=function(){
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var img_move=document.getElementsByClassName('test_img')[0];//获得元素DOM
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var Xstart=0,Ystart=0,Xmove=0,Ymove=0,top=0,left=0; //定义变量
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img_move.ontouchstart=function(e){
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var e=e||window.event;
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Xstart=e.touches[0].clientX;//获得触屏点横坐标
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Ystart=e.touches[0].clientY;//获得触屏点纵坐标
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//alert(e.touches.length) 获得当前屏幕上所有手指列表
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}
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img_move.ontouchmove=function(e){
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var e=e||window.event;
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event.preventDefault();//阻止页面滑动
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Xmove=e.changedTouches[0].clientX;//获得滑动时的触点横坐标
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Ymove=e.changedTouches[0].clientY;//获得滑动时的触点纵坐标
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img_move.style.top=top+Ymove-Ystart+"px";//对图片的下一次滑动操作时的定位
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img_move.style.left=left+Xmove-Xstart+"px";
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}
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img_move.ontouchend=function(){
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top=parseInt(img_move.style.top);//获得上一次滑动结束后的图片坐标
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left=parseInt(img_move.style.left);
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}
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}
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</script>
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</body>
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</html>
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<!doctype html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no">
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<style>
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*{
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margin:0;
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padding:0;
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}
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.test_img{
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position: relative;
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/*position: absolute;*/
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}
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</style>
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<title>Document</title>
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</head>
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<body>
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<img src="weight1.png" alt="" class="test_img">
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<p id="touch_tips"><p>
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<script>
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// JS原生获得手机端手机触摸点坐标并移动图片 方法二
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function handleTouchEvent(event) {
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var output = document.getElementById("output");
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switch (event.type) {
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case "touchstart":
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var e=e||window.event;
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Xstart=e.touches[0].clientX;
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Ystart=e.touches[0].clientY;
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break;
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case "touchend":
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top=parseInt(img_move.style.top);
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left=parseInt(img_move.style.left);
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break;
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case "touchmove":
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var e=e||window.event;
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event.preventDefault();//阻止页面滚动
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Xmove=e.changedTouches[0].clientX;
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Ymove=e.changedTouches[0].clientY;
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img_move.style.top=top+Ymove-Ystart+"px";
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img_move.style.left=left+Xmove-Xstart+"px";
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break;
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}
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}
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var img_move=document.getElementsByClassName('test_img')[0];
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var Xstart=0,Ystart=0,Xmove=0,Ymove=0,top=0,left=0;
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document.addEventListener("touchstart", handleTouchEvent, false);
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document.addEventListener("touchend", handleTouchEvent, false);
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document.addEventListener("touchmove", handleTouchEvent, false);
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</script>
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</body>
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</html>
PS：jquery 手机触屏事件如下：
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$(function(){
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$('.test_img').bind({
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'touchstart' : function(){
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$('#touch_tips').text('按下或触摸');
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},
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'touchmove' : function(e){
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var e=e||window.event;
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$('#touch_tips').text('滑动');
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},
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'touchend' : function(){
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$('#touch_tips').text('松开');
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}
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})
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})
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