微信浏览器拖动出现黑色/白色背景、网址问题解决方案

先上实际实现h5页面效果图。

如图实现的需求为:固定header + 固定footer + 可滚动content

如众多网友说的直接给body阻止默认事件,实际上是不行的(代码一)

 document.body.addEventListener('touchmove',function(e){
    e.preventDefault()
  },false)

若想实现页面完全不可滚动的需求,需加一参数才可实现,具体不展开说明,可自行google(代码二)

document.body.addEventListener('touchmove',function(e){
    e.preventDefault()
  },{ passive:false })

接下来介绍本文的具体解决方案:

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="initial-scale=1, width=device-width, maximum-scale=1, user-scalable=no">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }

        .header, .footer {
            position: fixed;
            width: 100vw;
            height: 40px;
            line-height: 40px;
            text-align: center;
            z-index: 3;
        }

        .header {
            top: 0;
            border-bottom: 1px solid #e6e6e6;
        }

        .footer {
            bottom: 0;
            border-top: 1px solid #e6e6e6;

        }

        .scrollEle {
            position: fixed;
            width: 100vw;
            top: 40px;
            bottom: 40px;
            z-index: 2;
            background: #fff;
            overflow-y: scroll;
            -webkit-overflow-scrolling: touch;
        }
    </style>
</head>
<body>
<div class="header">Header</div>
<div class="scrollEle">
    <p>......</p>
    <p>......</p>
    <p>......</p>
    <p>......</p>
</div>
<div class="footer">Footer</div>
</body>
<script>
  var startX = 0, startY = 0;

  function touchStart(e) {
    try {
      var touch = e.touches[0],
        x = Number(touch.pageX),
        y = Number(touch.pageY);
      startX = x;
      startY = y;
    } catch (e) {
      alert(e);
    }
  }

  document.addEventListener('touchstart', touchStart);
  var ele = document.querySelector('.scrollEle');
  ele.ontouchmove = function (e) {
    var point = e.touches[0],
      eleTop = ele.scrollTop,
      eleScrollHeight = ele.scrollHeight,
      eleOffsetHeight = ele.offsetHeight,
      eleTouchBottom = eleScrollHeight - eleOffsetHeight;
    if (eleTop === 0) {
      if (point.clientY > startY) {
        e.preventDefault();
      }
    }
    else if (eleTop === eleTouchBottom) {
      if (point.clientY < startY) {
        e.preventDefault()
      }
    }
  };
</script>
</html>

主要思路就是监听content部分滚动,当其滚动到顶部或者底部的时候,阻止其默认事件。

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转载自blog.csdn.net/u012392251/article/details/81539313
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