判断移动端横屏和竖屏

// 阻止移动端横屏 弹出提示
export function banRotateTips() {
  const orientation = window.orientation;
  let pd = null;

  function createPd() {
    if (document.getElementById("preventTran") === null) {
      const imgData =
        "data:image/png;base64,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";
      pd = document.createElement("div");
      pd.setAttribute("id", "preventTran");
      pd.style.position = "fixed";
      pd.style.left = "0";
      pd.style.top = "0";
      pd.style.width = "100%";
      pd.style.height = "100vh";
      pd.style.overflow = "hidden";
      pd.style.backgroundColor = "#2e2e2e";
      pd.style.textAlign = "center";
      pd.style.display = "flex";
      pd.style.flexDirection = "column";
      pd.style.justifyContent = "center";
      pd.style.alignItems = "center";
      document.getElementsByTagName("body")[0].appendChild(pd);
      const img = document.createElement("img");
      img.src = imgData;
      pd.appendChild(img);
      img.style.marginBottom = "1px";
      img.style.width = "10%";
      const br = document.createElement("br");
      const p = document.createElement("p");
      p.style.width = "100%";
      p.style.height = "auto";
      p.style.fontSize = "16px";
      p.style.color = "#626262";
      p.style.textAlign = "center";
      p.innerHTML = "为了您的良好体验";
      p.appendChild(br);
      p.innerHTML += "请将手机/平板竖屏操作";
      pd.appendChild(p);
    }
  }
  if (orientation === 90 || orientation === -90) {
    if (document.getElementById("preventTran") === null) createPd();
    document.getElementById("preventTran").style.zIndex = "9999";
  }
  //H5新特性 监听用户水平或垂直翻转设备（即方向发生改变）
  window.onorientationchange = function () {
    if (pd == null && document.getElementById("preventTran") == null)
      createPd();
    document.getElementById("preventTran").style.zIndex = "-1";
    banRotateTips();
  };
}

竖屏提示

@media all and (orientation:landscape){
  html,body{position:relative;overflow:hidden;width:100%;height:100%;padding:0;margin:0;}
  html::before{content:"";position:fixed;top:0;left:0;height:100%;width:100%;background:#333;z-index:99999;}
  html::after{content:"\4E3A\4E86\66F4\597D\7684\4F53\9A8C\FF0C\8BF7\5C06\624B\673A\7AD6\8FC7\6765";text-align:center;font-size:16px;color:#fff;position:absolute;top:50%;left:0;height:30px;width:100%;margin-top:50px;z-index:99999;}
  body::before{content:"";position:absolute;z-index:99999;height:200px;width:100px;left:50%;top:50%;margin:-140px 0 0 -50px;color:#fff;background-image:url("data:image/png;base64,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");background-repeat:no-repeat;background-position:center center;background-size:100px auto;-webkit-transform:rotateZ(-90deg);}
}

横屏提示

@media all and (orientation:portrait){
  html,body{position:relative;overflow:hidden;width:100%;height:100%;padding:0;margin:0;}
  html::before{content:"";position:fixed;top:0;left:0;height:100%;width:100%;background:#333;z-index:99999;}
  html::after{content:"\4E3A\4E86\66F4\597D\7684\4F53\9A8C\FF0C\8BF7\5C06\624B\673A\6A2A\8FC7\6765";position:absolute;top:50%;left:0;height:30px;width:100%;margin-top:30px;z-index:99999;text-align:center;font-size:16px;color:#fff;}
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}

Silence-dream / Silence-dream.github.io

判断移动端横屏和竖屏 #5