How to Build a Custom Onboarding Flow in SwiftUI (Step by Step)

How to Build a Custom Onboarding Flow in SwiftUI (Step by Step)

Today we’re going to build a custom onboarding flow in SwiftUI from scratch! Onboarding screens are a key part of a great first-time experience — guiding your users through your app’s main features.

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Free Course : Building App Onboarding Flow Step by Step

Data Model

We will begin with OnboardingStep struct which represents an onboarding step with associated content and styling.

struct OnboardingStep: Identifiable, Equatable {
    let id = UUID()
    let imageName: String
    let title: String
    let description: String
    let accentColor: Color
    
    static func == (lhs: OnboardingStep, rhs: OnboardingStep) -> Bool {
        lhs.id == rhs.id
    }
}

In this OnboardingStep struct, we are conforming to two protocols — Identifiable and Equatable — and it’s worth explaining why we’re doing this. Identifiable lets SwiftUI know that each onboarding step has a unique identifier (id) that can be used to efficiently track, differenciate, and update items in a ForEach. Without Identifiable, SwiftUI…