本文实例为大家分享了JavaScript实现滑块验证解锁的具体代码,供大家参考,具体内容如下
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<!DOCTYPE html> < html lang = "en" > < head > < meta charset = "UTF-8" > < meta name = "viewport" content = "width=device-width, initial-scale=1.0" > // 引入矢量图标库 < link rel = "stylesheet" href = "https://at.alicdn.com/t/font_2248239_eso2z5bskxk.css" > < title >Document</ title > < style > * { margin: 0; padding: 0; } .box { width: 300px; height: 40px; line-height: 40px; text-align: center; background-color: #e8e8e8; box-shadow: 1px 1px 5px rgba(0, 0, 0, 0.2); position: relative; margin-top: 100px; margin-left: 200px; } .box .bgColor { position: absolute; left: 0; top: 0; width: 40px; height: 40px; } .box .tips { position: absolute; width: 100%; height: 40px; line-height: 40px; font-size: 14px; color: #000; text-align: center; user-select: none; } .ball { width: 50px; height: 38px; border: 1px solid #ccc; background: #fff; text-align: center; cursor: move; position: absolute; top: 0; left: 0; } </ style > </ head > < body > < div class = "box" > < div class = "bgColor" ></ div > < div class = "tips" >滑动验证</ div > < div class = "ball" >< i class = "iconfont icon-double-arro-right" ></ i ></ div > </ div > </ body > < script > var box = document.getElementsByClassName("box")[0]; var ball = document.getElementsByClassName("ball")[0]; var bgColor = document.getElementsByClassName("bgColor")[0]; var tips = document.getElementsByClassName("tips")[0]; // 设置成功状态 var isSuccess = false; //默认为false 不成功 ball.onmousedown = function(e) { var e = e || window.event; // 获取鼠标相对于事件源左上角的位置 var posx = e.offsetX; // 每次鼠标按下时 清除动画样式 ball.style.transition = ""; bgColor.style.transition = ""; document.onmousemove = function(e) { var e = e || window.event; var x = e.pageX - box.offsetLeft - posx; var max = box.clientWidth - ball.clientWidth; if (x <= 0) { x = 0; } if (x >= max) { x = max; } bgColor.style.width = x + "px"; ball.style.left = x + "px"; bgColor.style.backgroundColor = "#6ff"; if (x == max) { success(); } } document.onmouseup = function() { // 如果没有解锁成功则返回原点 if (!isSuccess) { bgColor.style.width = 0 + "px"; ball.style.left = 0 + "px"; ball.style.transition = "left 0.6s linear"; bgColor.style.transition = "width 0.6s linear"; } // 鼠标抬起时,移除鼠标移动事件和鼠标抬起事件 document.onmouseup = null; document.onmousemove = null; } } // 定义一个滑块解锁成功的方法 function success() { isSuccess = true; // 获取图标 var icon = ball.firstElementChild; tips.textContent = "解锁成功"; bgColor.style.backgroundColor = "lightgreen"; icon.className = "iconfont icon-gou"; icon.style.color = "lightgreen"; //滑动成功时,移除鼠标按下事件 ball.onmousedown = null; } </ script > </ html > |
效果图如下:
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服务器之家。
原文链接:https://blog.csdn.net/weixin_53278262/article/details/112172233