If you want to reuse a view everywhere in your application, you need to implement a more refined solution. In this simple example, we have a computed variable generating a greeting text view based on a state object. Text(isMorning ? "Good morning!" : "Good afternoon!") This is also a good option if the view uses private variables set in the parent view. It’s what you call an ”opaque return type” for situations where we don’t want to specify the type.įor simple local reusability, you can create a function or a computed variable that returns the view with all of its modifiers applied. Most of the time, you want to use some View which means any kind of type conforming to the View protocol. Your choice depends on the view type and the customizations applied to the view at hand.īefore going deeper into code, I should note that you have to take the view type into account when returning a view from any function or variable. There are a few ways to implement reusable views.
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What’s more, SwiftUI improves code readability too. This is a big improvement from the traditional way of managing Interface Builder files. With SwiftUI’s declarative way of building views, it doesn’t take much to make the view components reusable.
While building a design system is entirely possible with UIKit, SwiftUI makes it a lot easier, at least when implementing view components. For keeping your code consistent with the designs, it’s also important to standardize naming conventions and communicate with tokens. The component system as a whole should follow a hierarchical structure that makes it easy to find whatever you’re looking for. For example, if a designer wanted to change a padding value in every instance of a button component, you should be able to make the change with a single fix. The components should also be easily adjustable and should not include any business logic. You want to have a system of components that you can reuse for everything in your application. Designers should not overlook SwiftUI either, since it can even be used as a prototyping tool. I think it’s useful for developers to understand the whole process of building a design system and the reasons behind it, as it does benefit development if you actually understand the guide you’re following. In this article, I will focus on ways of taking design systems into account when developing a SwiftUI application. Design systems also describe the standards for assembling these components into any number of applications. Much to the delight of developers and, especially, designers everywhere, it became evident that design systems became much easier to implement and manage in iOS.Ī design system is a combination of a style guide, asset and component catalog and a pattern library. The SwiftUI framework was announced by Apple in WWDC 2019, leaving everyone excited for a new declarative way to build your apps.
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