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Working with forms

Paul Hudson    @twostraws   

Fully updated for Xcode 11.4

With its firm focus on declarative user interfaces, it should be no surprise that SwiftUI gives us a fantastic mechanism for building forms – collections of user input controls designed to gather information, such as an order form or a settings screen.

Even better, several parts of SwiftUI automatically adapt to being placed inside forms – their appearance and behavior change so they work better alongside other groups of input controls.

If you thought that was clever, you’re going to love this: SwiftUI actually dynamically adjusts the layouts to the point where it can make whole new screens automatically for us depending on what platform your code is running on – it fully decouples the purpose of our controls from their visuals. This means we describe what we want and SwiftUI figures out the idiomatic way to make that happen on the current platform.

Tip: Forms are regular containers just like VStack, so you can switch between the two freely depending on your purpose.

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