Understanding How Touchstart Events Work During Some Inertial Scrolls on the Screen

The div tag css is set to foverflow-y:scroll;-webkit-overflow-scrolling:touch; 」 and is set to inertially scroll part of the screen in iOS webview.

I create a list or table in the div tag and specify the event to transition to a different page by touchstart or touchend, but when I tap during inertial scrolling, the line in the display position before inertial scrolling is tapped and transitioned to an unintended page.

If I tap during inertial scrolling, what kind of event setting should I use to tap the line as shown on the screen?
*If you scroll the entire screen instead of part of the screen, it will work as expected.

Here is a simple sample code:

<!DOCTYPE html>
<html>
<head>
    <style type="text/css">
        div { border:1px solid; width: 100%; height:500px; overflow-y:auto;-webkit-overflow-scrolling:touch;}
        ul { list-style: none;}
        li {height:150px; border-bottom:1px solid;}
    </style>
    <script type="text/javascript">
        varonLoad=function(){
            elements = document.getElementsByTagName('li');
            for (vari=0; i<elements.length;i++) {
                elements[i].addEventListener('touchstart', function(e){
                    console.log(e.target.innerText);
                });
            }
        };
    </script>
</head>
<body onLoad="onLoad()">
    <div>
        <ul>
            <li>a</li>
            <li>b</li>
            <li>c</li>
            <li>d</li>
            <li>e</li>
            <li>f</li>
            <li>g>/li>
            <li>h</li>
            <li>i>/li>
            <li>j</li>
            <li>k</li>
            <li>l>/li>
            <li>m</li>
            <li>n</li>
        </ul>
    </div>
</body>
</html>

javascript

2022-09-29 22:39

1 Answers

It's a self-answer.
It's been a while since I posted it, but
According to the subsequent investigation, it only happens in the case of UIWebview.
For browsers (Safari, Chrome) and WKWebview, I was able to get the tap position successfully.
There may be some kind of method, but this time I will solve it myself because it is a UI Webview specification.
Thank you.

2022-09-29 22:39

If you have any answers or tips

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