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Scrolling Like Butter Sam Soffes

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UITableView Everyone’s doing it

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UITableView Scrolling Nemesis

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http://blog.atebits.com

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So what’s good? Double cheeseburger. Ketchup only.

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1 FPS >30 FPS Choppy Awesome

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Twitterrific

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Tweetie

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iPod

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YouTube

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You’re doing it wrong It’s okay, most people are.

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How do I fix it? Magic and doing a rain dance

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Instruments Core Animation

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Demo

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Reuse Cells It’s easy. Why not?

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UITableViewCell *cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:nil] autorelease];

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static NSString *cellIdentifier = @"cell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier] autorelease]; }

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Optimize Blending Embrace the green

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Bad Good

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label.backgroundColor = [UIColor whiteColor]; label.opaque = YES;

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drawRect: vs Subviews Kinda a pain, but worth it

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Lorem Ipsum

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Lorem Ipsum

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Stuff to Check Out My blog: http://samsoff.es My Twitter: http://twitter.com/samsoffes My GitHub: http://github.com/samsoffes

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Stuff to Check Out My blog: http://samsoff.es My Twitter: http://twitter.com/samsoffes My GitHub: http://github.com/samsoffes