3/23/2023 0 Comments Ios folder colorAs always, follow Apple’s Human Interface Guidelines on how to best incorporate color into your app. Ensure also that the added colors are not distracting. This is to make it easier for users to distinguish what is a cell (and therefore tappable) and what is not.įor the colors that will end up supporting Increase Contrast, make sure that they do, in fact, increase the contrast. The visual divider between each TableViewCell changes to a darker color too. For example, in Settings, as we saw at the beginning of this post, the background color of a TableView changes to a darker color, but TableViewCells keep the same background color. In general, I would recommend having text colors, tint colors, and any “accent” colors respond to Increase Contrast. Does this mean that literally every single color in your app should respond to this accessibility setting? The short answer is “No.” Now we’ve covered all the different ways that you can support Increase Contrast in your app. How to Support Best Practices with Increase Contrast If you would prefer to listen for the UIAccessibility.darkerSystemColorsStatusDidChange notification, add an observer in an initializer (or in viewDidLoad on a ViewController): If your colors are defined in code, you have two options: you can either respond to the UIAccessibility.darkerSystemColorsStatusDidChange notification, or you can override traitCollectionDidChange. You may also notice how the “Background” colors (above) do not look drastically different in the Color Set, but in the app, there’s a huge difference! In the following screenshots, you can see how the “Switch Tint” and “Tint” colors are defined in my assets and how they look within my app. To allow these colors to support Increase Contrast, simply select the “High Contrast” option under “Appearances,” then, you can adjust the color for High Contrast. If you have specific design requirements, you may have your colors defined as a Color Set in an xcassets folder. I also used System Gray 6 as a background color. In this example, I used the “Label” color for the text color, System Indigo for the button and slider tint colors, and System Orange for the Switch’s tint color. You can learn more about System colors in Apple’s Human Interface Guidelines. If you want to branch out of the default colors, another option is to use “System colors.” System colors automatically adapt to Dark Mode and accessibility settings (such as Increase Contrast). All controls and text become darker when Increase Contrast is enabled. The easiest way to support Increase Contrast is to simply use the default color scheme. The way you choose to support it depends on how color is already incorporated into your app, and whether you have a specific color palette in mind. There are four different ways to support Increase Contrast. This is the behavior you want in your app. To try it, go to Settings > Accessibility > Display & Text Size, and select “Increase Contrast.” When enabled, you may notice in Settings that text immediately becomes darker, each individual cell becomes more defined, and each control appears darker, including the back button. Increase Contrastīefore digging right in, you may want to first check which components in your app already respond to Increase Contrast. You can learn more about testing Color Contrast in mobile apps here. This blog post is purely about supporting a great feature in iOS that can help users feel more comfortable with using your app. One disclaimer before we get started: Supporting Increase Contrast does not make your app WCAG compliant. If you would like, follow along with an app I made for this blog post! WCAG Compliance
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