---
title: "TN3108: Viewing the interface of your Swift code"
framework: technotes
role: article
role_heading: Article
path: technotes/tn3108-viewing-the-interface-of-your-swift-code
---

# TN3108: Viewing the interface of your Swift code

Learn how to navigate to the interface file of a Swift implementation file.

## Overview

Overview Xcode generates an interface file that includes all your source code’s internal and public declarations when using the Assistant editor, the Related Items, or the Navigate menu. Using the assistant editor In the project navigator, select your implementation file. Choose Editor > Assistant. The generated interface for your Swift code appears in the assistant editor on the right.  Using the Related Items button In the project navigator, select your implementation file. Click the Related Items icon in the editor’s jump bar. In the menu that appears, choose Counterparts > [Filename] to view your interface file.  Alternatively, choose Generated Interface > [Filename] from the menu. To navigate back to your implementation file, choose Original Source from the menu.  Using the Navigate menu In the project navigator, select your implementation file, then choose Navigate > Jump to Next Counterpart to view the interface file.  To navigate back to your implementation file, choose Navigate > Jump to Previous Counterpart or Navigate > Jump to Original Source [Filename].  Revision History 2022-05-24 Made minor editorial changes. 2022-02-08 Republished as TN3108 with significant editorial changes. 2016-03-23 First published as QA1914.

## See Also

### Latest

- [TN3210: Optimizing your app for iPhone Mirroring](technotes/tn3210-optimizing-your-app-for-iphone-mirroring.md)
- [TN3211: Resolving SwiftUI source incompatibilities for State and ContentBuilder](technotes/tn3211-resolving-swiftui-source-incompatibilities-for-state-and-contentbuilder.md)
- [TN3212: Adopting gesture recognizers for Sidecar touch support](technotes/tn3212-adopting-gesture-recognizers-for-sidecar-touch-support.md)
- [TN3208: Preparing your app’s launch screen to meet App Store requirements](technotes/tn3208-preparing-your-apps-launch-screen-to-meet-app-store-requirements.md)
- [TN3205: Low-latency communication with RDMA over Thunderbolt](technotes/tn3205-low-latency-communication-with-rdma-over-thunderbolt.md)
- [TN3206: Updating Apple Pay certificates](technotes/tn3206-updating-apple-pay-certificates.md)
- [TN3179: Understanding local network privacy](technotes/tn3179-understanding-local-network-privacy.md)
- [TN3190: USB audio device design considerations](technotes/tn3190-usb-audio-device-design-considerations.md)
- [TN3194: Handling account deletions and revoking tokens for Sign in with Apple](technotes/tn3194-handling-account-deletions-and-revoking-tokens-for-sign-in-with-apple.md)
- [TN3193: Managing the on-device foundation model’s context window](technotes/tn3193-managing-the-on-device-foundation-model-s-context-window.md)
- [TN3115: Bluetooth State Restoration app relaunch rules](technotes/tn3115-bluetooth-state-restoration-app-relaunch-rules.md)
- [TN3192: Migrating your iPad app from the deprecated UIRequiresFullScreen key](technotes/tn3192-migrating-your-app-from-the-deprecated-uirequiresfullscreen-key.md)
- [TN3151: Choosing the right networking API](technotes/tn3151-choosing-the-right-networking-api.md)
- [TN3111: iOS Wi-Fi API overview](technotes/tn3111-ios-wifi-api-overview.md)
- [TN3191: IMAP extensions supported by Mail for iOS, iPadOS, and visionOS](technotes/tn3191-imap-extensions-supported-by-mail.md)