解决ios滑动穿透问题

function closest(el, selector) {
  const matchesSelector = el.matches || el.webkitMatchesSelector || el.mozMatchesSelector || el.msMatchesSelector;
  while (el) {
    if (matchesSelector.call(el, selector)) {
      return el;
    }
    el = el.parentElement;
  }
  return null;
}

  onWrapTouchStart = (e) => {
    // ios滑动穿透
    if (!/iPhone|iPod|iPad/i.test(navigator.userAgent)) {
      return;
    }
    const pNode = closest(e.target, '.am-modal-content');
    if (!pNode) {
      e.preventDefault();
    }
  }

在弹框需要滚动的区域添加

onTouchStart事件