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authorBradley Taunt <bt@btxx.org>2024-06-06 08:05:12 -0400
committerBradley Taunt <bt@btxx.org>2024-06-06 08:05:12 -0400
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+<head>
+ <meta charset="utf-8">
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+ <title>Bidirectional Scrolling: Why Not Both?</title>
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+<main>
+<h1>Bidirectional Scrolling: Why Not Both?</h1>
+<p>2020-11-09</p>
+<p><em>I recently came across Adam Silver's post <a href="https://adamsilver.io/articles/bidirectional-scrolling-whats-not-to-like/">about the merits and pitfalls of bidirectional scrolling</a></em> and found myself conflicted with the design arguments put forth in the article. It's a very good article overall, and I suggest giving it a read before digging deeper into my post here.</p>
+<h2>The Premise</h2>
+<p>The original article argues that displaying page content via horizontal scrolling (and therefore slightly hiding interactive content) creates a few major issues:</p>
+<ul>
+<li>it increases the chance users won't see it</li>
+<li>there's a greater reliance on digital literacy</li>
+<li>it's generally more labour intensive for users</li>
+</ul>
+<p>Adam also makes a solid statement here:</p>
+<blockquote><p>Having to scroll down and across in a zig zag fashion can be tiresome, especially for people with motor impairments.</p>
+</blockquote>
+<p>But I don't believe these issues create a need to completely remove the horizontal "scrolling" design altogether. You can still implement the <code>See All Items</code> category link, while allowing the horizontal content to load in <em>dynamically</em>. Balance is always key.</p>
+<h2>Not All At Once, Please!</h2>
+<p>So what exactly do I mean by <em>dynamically</em> loading in horizontal content?</p>
+<ul>
+<li>The user is shown the top 4 items in a given category</li>
+<li>From there, the user can use the <code>See All Items</code> link to jump into a full category page</li>
+<li>If they so desire, they can begin scroll horizontally in a given category row
+<ul>
+<li>Once they reach the end of the row, 4 more items will load in automatically to expand the list</li>
+<li>To avoid a never-ending list, it might be best to limit total row items to ~20 items. At this point the UI could prompt the user to <code>View All Items</code> in that category.</li>
+</ul>
+</li>
+</ul>
+<p>By loading the row content in piece-by-piece, initial loads for users will be faster and subsequent list items will load quickly as well (since they would limit to a set default - in this case only 4).</p>
+<h2>Final Improvements</h2>
+<p>Below you can find a quick, static version of this concept. Here you can see the horizontal list items, along with their corresponding <code>See All Items</code> links. You'll have to use your imagination for how new items would load once you each the end of a horizontal row. (I'm too lazy to spend extra time building out that functionality for a hypothetical blog post)</p>
+<p><a href="https://codepen.io/bradleytaunt/pen/pobxpXz">Live CodePen Example</a></p>
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