混合应用程序-iPhone在Sticky Div中出现搜索栏问题

Question

我的代码就是这样，但是它在iPhone中确实可以正常运行，滚动时会波动。

此代码可在Android上运行，但是当我们尝试在iPhone上以Hybrid App形式运行时，它不起作用，粘性条会发生波动，滚动时会消失并停留在先前的位置，滚动完成后，它会变为现实位置。

<div class="header" id="myHeader">

我的标题

/* Style the header */
.header {
  padding: 10px 16px;
  background: #555;
  color: #f1f1f1;
}

/* Page content */
.content {
  padding: 16px;
}

/* The sticky class is added to the header with JS when it reaches its scroll position */
.sticky {
  position: fixed;
  top: 0;
  width: 100%
}

/* Add some top padding to the page content to prevent sudden quick movement (as the header gets a new position at the top of the page (position:fixed and top:0) */
.sticky + .content {
  padding-top: 102px;
}


    // When the user scrolls the page, execute myFunction 
window.onscroll = function() {myFunction()};

// Get the header
var header = document.getElementById("myHeader");

// Get the offset position of the navbar
var sticky = header.offsetTop;

// Add the sticky class to the header when you reach its scroll position. Remove "sticky" when you leave the scroll position
function myFunction() {
  if (window.pageYOffset > sticky) {
    header.classList.add("sticky");
  } else {
    header.classList.remove("sticky");
  }
}