iOS Design Guidelines
iOS Design Guidelines 🍏
Courtesy of @ux.mars
⠀
◻ Points and Pixels
⠀
◻ Assets and Screen Sizes
⠀
◻ App Icons
⠀
◻ Font Sizes
⠀
◻ Color Palette
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◻ App Icon Grind System
Points and Pixels
Pixels are the smallest physical element that we can control on a digital display. The more pixels can be fitted into a specific screen size, the higher the PPI (pixels-per-inch), and the clearer the rendered content becomes.
Points are a resolution-independent measurement. Depending on the screens pixel density, a point can contain multiple pixels (e.g., 1 pt contains 2 x 2 pixels on a regular retina display).
When you are designing for various display types, you should think in points, but design in pixels. This means you will still need to export all your assets in 3 different resolutions, no matter in which resolution you are designing your app.
If you need the value in pixels, just multiply by 2 for Retina screens or by 3 for Retina HD screens.
Assets and Screen Sizes
Assets and Screen Sizes
App Icons
Font Sizes
Color Palette
Since iOS 7, Apple has been using a vibrant color palette for the interface of the OS and pre-installed apps. While you can use the default iOS color palette listed above, you can also (and probably should, if you want to stand out) use your own colors.
App Icon Grid System
Apple developed a golden ratio grid system that can be used to size and align elements on your icon correctly. Nevertheless, even Apple designers are not following the grid system very strictly with the native apps’ icons. Feel free to break the rules if your icon simply works better without aligning all elements strictly to the grid.
Source Links
Apple Documentations
https://developer.apple.com/documentation
Apple Design Resources
https://developer.apple.com/design/resources
Other Resources
https://ivomynttinen.com/blog/ios-design-guidelines
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