iOS and Swift

Use SwiftUI to present the DoubleData notice and manage native SDK participation.

Download DoubleDataClient.swift and the complete SwiftUI example. Add them and your configured application-sdk.json to an iOS 15+ app.

The examples require an iOS XCFramework exposing the SDK’s DoubleDataProxy C module. Swift examples are included in this release; a prebuilt iOS XCFramework is not included. Add a compatible static framework to your Xcode target with Do Not Embed.

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Create a client

let client = try await DoubleDataClient.create(configurationJSON: configJSON)

The client is inactive. The SDK supplies the DoubleData notice, privacy link, and version.

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Show your SwiftUI screen

try await client.requestConsentAndStart { prompt in
    model.prompt = prompt
}

model owns your presentation state. The callback runs on the main actor. Render the full supplied prompt.notice with your own layout:

Text(prompt.notice.displayTitle).font(.title)
Text(prompt.notice.purpose)
Text(prompt.notice.text)
Text(prompt.notice.controller)
Text(prompt.notice.contact)
Link("Privacy policy", destination: prompt.notice.privacyURL)

Button("Enable sharing") { prompt.choose(.accept) }
Button("Decline") { prompt.choose(.decline) }

Call prompt.choose(.dismiss) when the screen is dismissed. Only an explicit acceptance can start sharing. The complete example handles sheet dismissal and keeps actions accessible below a scrollable notice.

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Stop and withdraw

try await client.stop()

client.cancelPendingConsent() // Immediately revoke permission; no network wait.
try await client.withdrawConsent()
try await client.close()

On backgrounding, cancel pending presentation and withdraw. Await close() before replacing a client; retry it if cleanup fails. Native work runs off the UI thread.

The portable wrapper is tested against the native C ABI. Apple SDK compilation and device testing remain required for your iOS build. Participation flow.