How can you easily make a div scroll vertically in the Android Browser?

Important Note: While similar questions have been asked before, it's important to consider that the mobile web is constantly evolving. The discussions from a few years ago may no longer be relevant due to updates and changes in technology.

I am currently facing an issue creating a basic scrolling <div> on the Android browser. In most compliant browsers, this can be achieved by setting a fixed size and using overflow-y: auto. Unfortunately, it seems like mobile Webkit browsers do not support this attribute. Are there alternative methods or equivalents that I can explore?

If possible, I would prefer a CSS-based solution. I am aware of JavaScript widgets like iScroll and Dojo Mobile lists, but they may be too complex for my requirements. According to the iScroll documentation, it mentions that "latest Android revisions are supporting this functionality (although support is not optimal)". This raises the question of whether Android 4.0 has resolved this issue.

Answer №1

I have successfully utilized the standard touch events on a variety of devices with great success. Instead of using a heavy plugin, a simple solution is to utilize the touchstart, touchmove, and touchend events to calculate movement and adjust the scrollTop accordingly.

While I couldn't find a universal CSS method that works across all devices, Webkit may have some proprietary solutions available.

P.S this experience was within the last 3 months.

[update]

You can handle these events like any other,

var startX = 0;
var startY = 0;
var ele = document.getElementById('myScrollableDiv');
ele.addEventListener('touchstart', function(ev){
    startX = ev.screenX;
    startY = ev.screenY;
});

ele.document.getElementById('myScrollableDiv').addEventListener('touchmove', function(ev){
    movementX = startX - ev.screenX;
    movementY = startY - ev.screenY;
    ele.style.scrollLeft = ele.style.scrollLeft + movementX;
    ele.style.scrollTop = ele.style.scrollTop + movementY;
    ev.preventDefault();
});

This code is all from memory, so it would require testing which I am unable to do at the moment. Unfortunately, I don't have access to the specific jQuery code I previously used. However, this approach does eventually yield positive results, despite needing a few tweaks. Hopefully, this overview provides enough information for you to work from.

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