Are there any Mobile device accessibility guidelines?
Just looking at button sizes on mobile devices.
I'm told these sizes are recommended by Apple
Minimum button size 44px square.
Or 32px high so long as the horizontal is considerably larger.
Is there a proper set of device independent recommendations?
Mike Foskett
<marquee><blink><work> webSemantics </work><rest> 2kool2 </rest> & <play> bangers & mashed </play></marquee></blink>
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Hi,
There isn't one set of definitive mobile accessibility guidelines aside from the Funka.Nu Mobile Guidelines (http://www.funkanu.se/en/About-Funka/News/News-archive-en/Mobile-accessibility-guidelines/) however these don't go into any detail about button size.
At BBC I recommend all actionable controls on iOS be larger than 9.6mm across (44x44 for standard resolution and 88x88 for high resolution). I also recommend at least 1 pixel of inactive space around touch targets.
On Android I have seen comments suggesting elements should be at least 48dp high and wide. This sits within the comfortable hit area size for touch screen finger touch (7-10mm). The spacing between UI elements should be 8dp.
Your best bet is to refer to device/platform specific guidelines where they exist. I have a list at: http://www.iheni.com/mobile-accessibility-guidelines/
We will at some point in the future be posting out BBC Mobile and Tablet Accessibility Guidelines and will share a link here when we do. Be good to hear of any additional answers you've come across too.
Henny
Blog:www.iheni.com
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Nice List Henny,
I'll take a good read later today.
Thanks for that.
Mike Foskett.
<marquee><blink><work> webSemantics </work><rest> 2kool2 </rest> & <play> bangers & mashed </play></marquee></blink>
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