js实现滑动进度条效果

时间：2021-05-26

本文实例为大家分享了js实现滑动进度条效果的具体代码，供大家参考，具体内容如下

进度条：

<!DOCTYPE html><html><head> <meta charset="utf-8" /> <title>js滑动进度条效果</title> <style> *{margin:0;padding:0;user-select:none;} .progress-bar{position:relative;height:10px;width:400px;margin:200px auto;background:#ebeef5;border-radius:10px;} .progress-bar .pro-bar{position:absolute;left:0;height:10px;width:10px;background:#409eff;} .progress-bar .min-num{position:absolute;left:-20px;top:-5px;} .progress-bar .max-num{position:absolute;right:-40px;top:-5px;} .progress-bar .block {position:absolute;height:30px;width:10px;background:#ccc;top:-10px;border-radius:10px;} .progress-bar .block div{position:absolute;display:none;left:-20px;top:-45px;width:50px;height:30px;text-align:center;line-height:30px;background:#ccc;border-radius:20px;} .progress-bar .block:hover div{display:block;font-size:10%;color:#fff;background:#409eff;} </style></head><body> <div class="progress-bar"> <span class="min-num">0</span> <span class="max-num">100</span> <div class="pro-bar"></div> <div class="block"> <div>0</div> </div> </div></body><script> (function(){ let moveBlock = document.querySelector('.block'); let proBar = document.querySelector('.pro-bar'); let flag = false; let startX = null; let moveMax = (400 - 10); // 背景条宽度减去滑块的宽度 moveBlock.onmousedown = function(e){ startX = e.pageX; moveBlock.style.left ? moveBlock.style.left : moveBlock.style.left = '0px'; let startLeft = parseInt(moveBlock.style.left); document.onmousemove = function(e){ let moveX = (e.pageX - startX) > 0 ? true : false; let moveSection = startLeft + (e.pageX - startX); // 限定移动范围 if (moveSection >= 0 && moveSection <= moveMax) { let percent = ((startLeft + (e.pageX - startX)) / moveMax).toFixed(4) * 100; percent.toString().length > 5 ? percent = percent.toString().subStr(0, 5) : percent = percent.toString(); moveBlock.style.left = startLeft + (e.pageX - startX) + 'px'; proBar.style.width = moveBlock.style.left; moveBlock.querySelector('div').innerText = percent + '%'; } }; }; // 鼠标松开移除事件 moveBlock.onmouseup = function(){ document.onmousemove = null; }; })();</script></html>

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。

声明：本页内容来源网络，仅供用户参考；我单位不保证亦不表示资料全面及准确无误，也不保证亦不表示这些资料为最新信息，如因任何原因，本网内容或者用户因倚赖本网内容造成任何损失或损害，我单位将不会负任何法律责任。如涉及版权问题，请提交至online#300.cn邮箱联系删除。

相关文章