signature_pad实现支持手机端的手写签名的画板效果代码-html代码-BFW代码库

代码语言：html

所属分类：其他

代码描述：signature_pad实现支持手机端手写签名的画板效果代码，可设置背景色和字体颜色，支持导出图片。

下面为部分代码预览，完整代码请点击下载或在bfwstudio webide中打开

<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <style>
        *,
    *::before,
    *::after {
      box-sizing: border-box;
    }
    
    body {
      display: -webkit-box;
      display: -ms-flexbox;
      display: flex;
      -webkit-box-pack: center;
          -ms-flex-pack: center;
              justify-content: center;
      -webkit-box-align: center;
          -ms-flex-align: center;
              align-items: center;
      height: 100vh;
      width: 100%;
      -webkit-user-select: none;
         -moz-user-select: none;
          -ms-user-select: none;
              user-select: none;
      margin: 0;
      padding: 32px 16px;
      background: #b3b3b3;
      font-family: Helvetica, Sans-Serif;
    }
    
    .signature-pad {
      position: relative;
      display: -webkit-box;
      display: -ms-flexbox;
      display: flex;
      -webkit-box-orient: vertical;
      -webkit-box-direction: normal;
          -ms-flex-direction: column;
              flex-direction: column;
      font-size: 10px;
      width: 100%;
      height: 100%;
      max-width: 700px;
      max-height: 460px;
      border: 1px solid #e8e8e8;
      background-color: #fff;
      box-shadow: 0 1px 4px rgba(0, 0, 0, 0.27), 0 0 40px rgba(0, 0, 0, 0.08) inset;
      border-radius: 4px;
      padding: 16px;
    }
    
    .signature-pad::before,
    .signature-pad::after {
      position: absolute;
      z-index: -1;
      content: "";
      width: 40%;
      height: 10px;
      bottom: 10px;
      background: transparent;
      box-shadow: 0 8px 12px rgba(0, 0, 0, 0.4);
    }
    
    .signature-pad::before {
      left: 20px;
      -webkit-transform: skew(-3deg) rotate(-3deg);
              transform: skew(-3deg) rotate(-3deg);
    }
    
    .signature-pad::after {
      right: 20px;
      -webkit-transform: skew(3deg) rotate(3deg);
              transform: skew(3deg) rotate(3deg);
    }
    
    .signature-pad--body {
      position: relative;
      -webkit-box-flex: 1;
          -ms-flex: 1;
              flex: 1;
      border: 1px solid #f4f4f4;
    }
    
    canvas {
      position: absolute;
      left: 0;
      top: 0;
      width: 100%;
      height: 100%;
      border-radius: 4px;
      box-shadow: 0 0 5px rgba(0, 0, 0, 0.02) inset;
    }
    
    .signature-pad--footer {
      color: #C3C3C3;
      text-align: center;
      font-size: 1.2em;
      margin-top: 8px;
    }
    
    .signature-pad--actions {
      display: -webkit-box;
      display: -ms-flexbox;
      display: flex;
      -webkit-box-pack: justify;
          -ms-flex-pack: justify;
              justify-content: space-between;
      margin-top: 8px;
    }
    
    #github img {
      border: 0;
    }
    
    #fileupload {
      display: none;
    }
    
    form {
      display: table-row;
      margin-right: 5px;
    }
    
    span[role=button] {
      display: table-cell;
      font-size: 1.2em;
    }
    
    span[role=button],
    button {
      cursor: pointer;
      background-color: #e1e1e1;
      color: #000000;
      border: none;
      padding: 8px;
      margin-bottom: 8px;
    }
    
    @media (max-width: 940px) {
      #github img {
        width: 90px;
        height: 90px;
      }
    }
    </style>

</head>

<body>


    <div id="signature-pad" class="signature-pad">
        <div class="signature-pad--body">
            <canvas>
        Update your browser to support the canvas element!
      </canvas>
        </div>
        <div class="signature-pad--footer">
            <div class="description">Sign above</div>

            <div class="signature-pad--actions">
                <form action="#" enctype="multipart/form-data">
                    <label for="fileupload" id="buttonlabel">
            <span role="button" aria-controls="filename" tabindex="0">
              Choose a background image
            </span>
          </label>
                    <input type="file" id="fileupload" accept="image/*">
                </form>
                <div>
                    <button type="button" class="button clear" data-action="clear">Clear</button>
                    <button type="button" class="button" data-action="change-color">Change color</button>
                    <button type="button" class="button" data-action="undo">Undo</button>

                </div>
                <div>
                    <button type="button" class="button save" data-action="save-png">Save as PNG</button>
                    <button type="button" class="button save" data-action="save-jpg">Save as JPG</button>
                    <button type="button" class="button save" data-action="save-svg">Save as SVG</button>
                </div>
            </div>
        </div>
    </div>

    <script type="text/javascript" src="//repo.bfw.wiki/bfwrepo/js/signature_pad.min.js"></script>
    <script>
        const wrapper = document.getElementById("signature-pad")
     const clearButton = wrapper.querySelector("[data-action=clear]")
     const changeColorButton = wrapper.querySelector("[data-action=change-color]")
     const undoButton = wrapper.querySelector("[data-action=undo]")
     const savePNGButton = wrapper.querySelector("[data-action=save-png]")
     const saveJPGButton = wrapper.querySelector("[data-action=save-jpg]")
     const saveSVGButton = wrapper.querySelector("[data-action=save-svg]")
     const canvas = wrapper.querySelector("canvas")
     const fileSelector = document.g.........完整代码请登录后点击上方下载按钮下载查看