This post by Tyler Hall has been shared a lot recently. Tyler wrote about the experiences his wife had when trying to save a photo on iOS 13:
At this point there were a few seconds of silence before she yells “Oh my god! This is just like the dumb new Music app. I didn’t even know I could scroll down!”
Why didn’t she know there were options further down the share sheet? Because she’s using an iPhone 8, which happens to be just the right height to perfectly crop the share sheet. Take a look again at the first screenshot she sent me:
The “Copy” action is perfectly spaced from the bottom of the screen to appear like it’s the only option. And since iOS (and in some places now macOS, too) doesn’t offer visual affordances like scroll indicators, she had no idea there was any content further below.
I’m a developer with an eye for design, but I’m certainly not a designer. So I don’t know what the solution is to these types of accidental UI bugs. But I see them impact my aging parents all the time. This was just the first time one has so obviously confused my wife, and it caught me by surprise, too.
The solution is very simple. Scroll bars could be visible at all times. Personally, I have them hidden unless I’m scrolling, so the other option is to simply show another row of data at the bottom page of the screen, just like on this screenshot from Apple Developer documentation. Take a look at the leftmost screen. You will see group 4 at the bottom –you need to scroll vertically to get to it.