js拖动滑块和点击水波纹效果实例代码

2019-11-19 12:41:35

字体：大中小

来源：转载

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拖动滑块效果：

先看看效果图：

<!doctype html><html>  <head>  <meta charset="UTF-8" />  <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />  <title>Document</title>  <script type="text/javascript" src=""></script>   <style type="text/css">   input[type="range"] {    width: 80%;    background-color: red;    border-radius: 15px;    -webkit-appearance: none;    height: 1px;    position: relative;    -webkit-box-sizing: border-box;    -moz-box-sizing: border-box;    box-sizing: border-box;   }    input[type="range"]::-webkit-slider-thumb {    -webkit-appearance: none;    background-color: green;    border-radius: 50%;    height: 30px;    width: 30px;    box-shadow: 0 1px 3px rgba(0, 0, 0, .4);    border: none;    position: relative;    z-index: 10;   }  </style>  <script type="text/javascript">   $(function() {    $(".input_1").change(function() {     $("p.p1").text($(this).val());    })     setInterval(function() {     $("p.p2").text($(".input_2").val());    }, 0.01)   })  </script> </head>  <body>  <p>添加change事件</p>  <input type="range" step="0.01" min="0" max="5" value="0">  <p>0</p>  <p>添加定时器</p>  <input type="range" step="0.01" min="0" max="5" value="0">  <p>0</p> </body> </html>

<!DOCTYPE html><html> <head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" /><title>鼠标拖动小方块</title><style type="text/css">.lineDiv {position: relative;height: 5px;background: red;width: 300px;margin: 50px auto;} .lineDiv .minDiv {position: absolute;top: -5px;left: 0;width: 15px;height: 15px;background: green;cursor: pointer} .lineDiv .minDiv .vals {position: absolute;font-size: 20px;top: -45px;left: -10px;width: 35px;height: 35px;line-height: 35px;text-align: center;background: blue;} .lineDiv .minDiv .vals:after {content: "";width: 0px;height: 0px;border-top: 6px solid blue;border-left: 6px solid transparent;border-right: 6px solid transparent;border-bottom: 6px solid transparent;display: block;margin-left: 11px;}</style></head> <body><center><h3>用鼠标拖动小方块<span id="msg">0</span>%</h3></center><div id="lineDiv"><div id="minDiv"><div id="vals">0</div></div></div><script>window.onload = function() { var lineDiv = document.getElementById('lineDiv'); //长线条var minDiv = document.getElementById('minDiv'); //小方块var msg = document.getElementById("msg");var vals = document.getElementById("vals");var ifBool = false; //判断鼠标是否按下 //鼠标按下方块minDiv.addEventListener("touchstart", function(e) {e.stopPropagation();ifBool = true;console.log("鼠标按下")}); //拖动window.addEventListener("touchmove", function(e) {console.log("鼠标拖动")if(ifBool) {var x = e.touches[0].pageX || e.touches[0].clientX; //鼠标横坐标var xvar lineDiv_left = getPosition(lineDiv).left; //长线条的横坐标var minDiv_left = x - lineDiv_left; //小方块相对于父元素（长线条）的left值 if(minDiv_left >= lineDiv.offsetWidth - 15) {minDiv_left = lineDiv.offsetWidth - 15;}if(minDiv_left < 0) {minDiv_left = 0;}//设置拖动后小方块的left值minDiv.style.left = minDiv_left + "px";msg.innerText = parseInt((minDiv_left / (lineDiv.offsetWidth - 15)) * 100);vals.innerText = parseInt((minDiv_left / (lineDiv.offsetWidth - 15)) * 100);}});//鼠标松开window.addEventListener("touchend", function(e) {console.log("鼠标弹起")ifBool = false;});//获取元素的绝对位置function getPosition(node) {var left = node.offsetLeft; //获取元素相对于其父元素的left值var leftvar top = node.offsetTop;current = node.offsetParent; // 取得元素的offsetParent　 // 一直循环直到根元素　　while(current != null) {　　left += current.offsetLeft;　　top += current.offsetTop;　　current = current.offsetParent;　　}return {"left": left,"top": top};}}</script></body> </html>

兼容PC端和移动端

<!DOCTYPE html><html> <head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" /><title>鼠标拖动小方块</title><style type="text/css">.lineDiv {position: relative;height: 5px;background: red;width: 300px;margin: 50px auto;} .lineDiv .minDiv {position: absolute;top: -5px;left: 0;width: 15px;height: 15px;background: green;cursor: pointer} .lineDiv .minDiv .vals {position: absolute;font-size: 20px;top: -45px;left: -10px;width: 35px;height: 35px;line-height: 35px;text-align: center;background: blue;} .lineDiv .minDiv .vals:after {content: "";width: 0px;height: 0px;border-top: 6px solid blue;border-left: 6px solid transparent;border-right: 6px solid transparent;border-bottom: 6px solid transparent;display: block;margin-left: 11px;}</style></head> <body><center><h3>用鼠标拖动小方块<span id="msg">0</span>%</h3></center><div id="lineDiv"><div id="minDiv"><div id="vals">0</div></div></div><script>window.onload = function() { var lineDiv = document.getElementById('lineDiv'); //长线条var minDiv = document.getElementById('minDiv'); //小方块var msg = document.getElementById("msg");var vals = document.getElementById("vals");var ifBool = false; //判断鼠标是否按下//事件var start = function(e) {e.stopPropagation();ifBool = true;console.log("鼠标按下")}var move = function(e) {console.log("鼠标拖动")if(ifBool) {if(!e.touches) { //兼容移动端var x = e.clientX;} else {  //兼容PC端var x = e.touches[0].pageX;}//var x = e.touches[0].pageX || e.clientX; //鼠标横坐标var xvar lineDiv_left = getPosition(lineDiv).left; //长线条的横坐标var minDiv_left = x - lineDiv_left; //小方块相对于父元素（长线条）的left值 if(minDiv_left >= lineDiv.offsetWidth - 15) {minDiv_left = lineDiv.offsetWidth - 15;}if(minDiv_left < 0) {minDiv_left = 0;}//设置拖动后小方块的left值minDiv.style.left = minDiv_left + "px";msg.innerText = parseInt((minDiv_left / (lineDiv.offsetWidth - 15)) * 100);vals.innerText = parseInt((minDiv_left / (lineDiv.offsetWidth - 15)) * 100);}}var end = function(e) {console.log("鼠标弹起")ifBool = false;}//鼠标按下方块minDiv.addEventListener("touchstart", start);minDiv.addEventListener("mousedown", start);//拖动window.addEventListener("touchmove", move);window.addEventListener("mousemove", move);//鼠标松开window.addEventListener("touchend", end);window.addEventListener("mouseup", end);//获取元素的绝对位置function getPosition(node) {var left = node.offsetLeft; //获取元素相对于其父元素的left值var leftvar top = node.offsetTop;current = node.offsetParent; // 取得元素的offsetParent　 // 一直循环直到根元素　　while(current != null) {　　left += current.offsetLeft;　　top += current.offsetTop;　　current = current.offsetParent;　　}return {"left": left,"top": top};}}</script></body> </html>

设置滑块的滑动范围

<!DOCTYPE html><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" /><title>鼠标拖动小方块</title><style type="text/css">.lineDiv {position: relative;height: 5px;background: red;width: 95%;margin: 50px auto;} .lineDiv .minDiv {position: absolute;top: -15px;left: 0;width: 35px;height: 35px;background: green;cursor: pointer;transition: all 0s;} .lineDiv .vals {z-index: 100;position: absolute;top: 0px;left: 0px;width: 0px;height: 5px;background: blue;}</style></head> <body><center><h3>用鼠标拖动小方块<span id="msg">0</span>%</h3></center><div id="lineDiv"><div id="vals"></div><!-- --><div id="minDiv"></div><!-- --></div><script>window.onload = function() { var lineDiv = document.getElementById('lineDiv'); //长线条var minDiv = document.getElementById('minDiv'); //小方块var minVals = document.getElementById('vals'); //左长线var msg = document.getElementById("msg"); //最上面的信息var ifBool = false; //判断滑块是否按下 var lineDiv_W = getPosition(lineDiv).width; //长线的长度var lineDiv_L = getPosition(lineDiv).left; //长线距离html的left var minDiv_W = getPosition(minDiv).width; //滑块的长度var minDiv_L = getPosition(minDiv).left; //滑块距离html的left var Slider_W_MAX = lineDiv_W - minDiv_W; //滑块可以滑动的最大值px，范围是0~Slider_W_MAX var minNum = 0; //最小值var maxNum = 500; //最大值 var startNum = 100; //起始值var endNum = 400; //结束值 var min_Px = Slider_W_MAX / maxNum * startNum; //滑块可以滑动的最小pxvar max_Px = Slider_W_MAX / maxNum * endNum; //滑块可以滑动的最大px var minDiv_left=0; //当前滑块的位置/* Slider_W_MAX  1元对应的px？     1  maxNum    1   1px对应的金额？*/ function initSlider(initPX) { //设置滑块的初始位置console.log(initPX);minDiv_left=initPX; //设置滑块的位置minDiv.style.left = initPX + "px";minVals.style.width = initPX + "px";msg.innerText = parseInt(initPX / Slider_W_MAX * 100);} (function() { //初始化滑块位置if(startNum >= 0) { //求出startNum对应的pxinitSlider(Slider_W_MAX / maxNum * startNum)}})() //事件var start = function(e) {ifBool = true;//console.log("鼠标按下")}var move = function(e) {//console.log("鼠标拖动")if(ifBool) {var x; //记录滑块距离html的距离leftif(!e.touches) { //兼容PC端x = e.clientX;} else { //兼容移动端x = e.touches[0].pageX;} minDiv_left = x - lineDiv_L; //小方块相对于父元素（长线条）的left值 if(minDiv_left >= Slider_W_MAX) {minDiv_left = Slider_W_MAX;}if(minDiv_left < 0) {minDiv_left = 0;} //设置拖动后小方块的left值initSlider(minDiv_left) }}var end = function(e) {if(minDiv_left>max_Px){initSlider(max_Px);}if(minDiv_left<min_Px){initSlider(min_Px);}ifBool = false;}//鼠标按下方块minDiv.addEventListener("touchstart", start);minDiv.addEventListener("mousedown", start);//拖动window.addEventListener("touchmove", move);window.addEventListener("mousemove", move);//鼠标松开window.addEventListener("touchend", end);window.addEventListener("mouseup", end); //获取元素的绝对位置function getPosition(node) {var width = node.offsetWidth; //元素宽度var height = node.offsetHeight; //元素高度var left = node.offsetLeft; //获取元素相对于其根元素的left值var leftvar top = node.offsetTop; //获取元素相对于其根元素的top值var topcurrent = node.offsetParent; // 取得元素的offsetParent // 一直循环直到根元素　　while(current != null) {　　left += current.offsetLeft;　　top += current.offsetTop;　　current = current.offsetParent;　　}return {"width": width,"height": height,"left": left,"top": top};}}</script></body> </html>

点击水波纹效果：

<!DOCTYPE html><html> <head>  <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">  <title>JS</title>  <link rel="stylesheet" type="text/css" href="css/reset.css" rel="external nofollow" />  <script type="text/javascript" src=""></script>  <style type="text/css" media="screen">   ul {    font-size: 0;    position: relative;    padding: 0;    width: 480px;    margin: 40px auto;    user-select: none;   }       li {    display: inline-block;    width: 160px;    height: 60px;    background: #E95546;    font-size: 16px;    text-align: center;    line-height: 60px;    color: white;    text-transform: uppercase;    position: relative;    overflow: hidden;    cursor: pointer;   }       .slider {    display: block;    position: absolute;    bottom: 0;    left: 0;    height: 4px;    background: #1685D3;    transition: all 0.5s;   }       .ripple {    width: 0;    height: 0;    border-radius: 50%;    background: rgba(255, 255, 255, 0.4);    -webkit-transform: scale(0);    -ms-transform: scale(0);    transform: scale(0);    position: absolute;    opacity: 1;   }       .rippleEffect {    -webkit-animation: rippleDrop .4s linear;    animation: rippleDrop .4s linear;   }       @-webkit-keyframes rippleDrop {    100% {     -webkit-transform: scale(2);     transform: scale(2);     opacity: 0;    }   }       @keyframes rippleDrop {    100% {     -webkit-transform: scale(2);     transform: scale(2);     opacity: 0;    }   }  </style>  </head> <body>  <ul>   <li>项目一</li>   <li>项目二</li>   <li>项目三</li>   <li class="slider"></li>  </ul> </body> <script>  $("ul li").click(function(e) {    if($(this).hasClass('slider')) {    return;   }    var whatTab = $(this).index();    var howFar = 160 * whatTab;    $(".slider").css({    left: howFar + "px"   });    $(".ripple").remove();    var posX = $(this).offset().left,    posY = $(this).offset().top,    buttonWidth = $(this).width(),    buttonHeight = $(this).height();   console.log(posX, posY, buttonWidth, buttonHeight)    $(this).append("<span class='ripple'></span>");    if(buttonWidth >= buttonHeight) {    buttonHeight = buttonWidth;   } else {    buttonWidth = buttonHeight;   }    var x = e.pageX - posX - buttonWidth / 2;   var y = e.pageY - posY - buttonHeight / 2;    $(".ripple").css({    width: buttonWidth,    height: buttonHeight,    top: y + 'px',    left: x + 'px'   }).addClass("rippleEffect");   }); </script> </html>

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