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iOS 5 Beta 2 Brings Native Style Momentum Scrolling for Web Apps

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For web app developers, iOS 5 Beta 2 now brings native style momentum scrolling, something that previously was compensated by the use of custom Javascript to fake the feature.

As per the release notes in iOS 5 Beta 2:

WebKit
NEW: In iOS 5.0 beta 2, a new inherited CSS property, -webkit-overflow-scrolling, is available. The value touch allows the web developer to opt in to native-style scrolling in an overflow:scroll element. The default value for this property is auto.

Here’s what Johan Brooks has to say on the differences between native scrolling in apps versus web pages:

There’s indeed a noticeable difference in momentum between scrolling in native apps and in web pages. It’s maybe the one single thing that makes you think: “Oh right, this is a web app”. I guess iOS has a different scrolling behavior in web pages since it’s actually helpful when there’s a lot of tiny information on screen – a fast moving scroll would have been quite tricky to handle when precision-scrolling through long news articles. But for those who really want to create apps for the mobile browser with that native look-and-feel, this behavior is an obstacle.

If you’re running iOS 5 Beta 2, you can check out a scrolling demo here. Check out other iOS 5 Beta 2 discoveries here.

[Johan Brook via Daring Fireball]

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  • Calgary

    why doesnt someone just a make a youtube video so we know what this is

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