30 Mar '13, 1pm

Designing for iOS: Blending modes

March 30, 2013 gfontenot ios design Designing for iOS: Blending modes Let’s say that we have an app that makes use of image assets for icons, custom progress bars, etc. Now we want to allow users to theme the app, and these images need to conform to this new color scheme. The obvious solution is to add 1x and 2x versions of every single possible image asset in the app, right? No, of course not. Duplication is bad, and duplicating images is just another form of duplication. But we’re clever folks, I’m sure we can find a nice way around this! We’ll start out with a simple image that we need to tint to our new color scheme. It has an alpha channel, but it’s a flat color and the new color is going to be flat as well. The smart way to do this would be to redraw the image using a new color using CoreGraphics . Let’s consider the steps needed to make this happen: Create a new ima...

Full article: http://robots.thoughtbot.com/post/46668544473/designing-f...

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Designing for #iOS: Graphics & Performance

Designing for #iOS: Graphics & Performance

robots.thoughtbot.com 06 Apr '13, 9am

when the GPU is used for compositing and rendering graphics, such as the case for OpenGL and the Core Animation/UIKit impl...