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FINN.no UI for iOS app
.package(url: "https://github.com/finn-no/finnui-ios.git", from: "22.2.1")

CircleCI Swift Package Manager compatible

FinnUI holds some of the UI used to build the FINN.no iOS app.

Run the Demo project for a list of all our components.

The main purpose of this library is for internal use and to be used as reference for other teams in how we do things inside FINN.no.


Open the Workspace/FinnUIDemo.xcworkspace file to do development, that will enable you to edit the code in the package, edit the code in the demo, and run the Demo project (the reason for not having the workspace file in root is because then Xcode will select the Package.swift for it's list of recents despite that you used the workspace before).



pod "FinnUI", git: "https://github.com/finn-no/finnui-ios"

You will also need to include the FinniversKit dependency in your Podfile.

pod "FinniversKit", git: "https://github.com/finn-no/FinniversKit"


Import the framework to access all the components.

import FinnUI

Create new releases


  • Install dependencies with bundle install (dependencies will be installed in ./bundler)
  • Fastlane will use the GitHub API, so make sure to create a personal access token here and place it within an environment variable called FINN_GITHUB_COM_ACCESS_TOKEN.
    • When creating a token, you only need to give access to the scope repo.
    • There are multiple ways to make an evironment variable, for example by using a .env file or adding it to .bashrc/.bash_profile). Don't forget to run source .env (for whichever file you set the environment variables in) if you don't want to restart your shell.
    • Run bundle exec fastlane verify_environment_variable to see if it is configured correctly.
  • Run bundle exec fastlane verify_ssh_to_github to see if ssh to GitHub is working.

Make release

  • Run bundle exec fastlane and choose appropriate lane. Follow instructions, you will be asked for confirmation before all remote changes.
  • After the release has been created you can edit the description on GitHub by using the printed link.

Interesting things


This project has a Gemfile that specify some development dependencies, one of those is pr_changelog which is a tool that helps you to generate changelogs from the Git history of the repo. You install this by running bundle install.

To get the changes that have not been released yet just run:

$ pr_changelog

If you want to see what changes were released in the last version, run:

$ pr_changelog --last-release

You can always run the command with the --help flag when needed.


Everything we do we aim it to be accessible, our two main areas of focus have been VoiceOver and Dynamic Type.

Snapshot Testing

When making UI changes it's quite common that we would request an screenshot of the before and after, adding Snapshot testing made this trivial, if there was UI changes you would get a failure when building through the CI.

FinnUI uses SnapshotTesting to compare the contents of a UIView against a reference image.

When you run the tests FinnUI will take snapshot of all the components and will look for differences. If a difference is caught you'll be informed in the form of a failed test. Running the tests locally will generate a diff between the old and the new images so you can see what caused the test to fail.

Testing a new component

To test a new component go to UnitTests and add a new func with the name of your component under the section that makes sense, for example if your component is a Fullscreen component and it's called RegisterView then you'll need to add a method to FullscreenViewTests.swift your method should look like this:

func testRegisterView() {

Note that the snapshot method is a helper method that will call SnapshotTesting under the hood.

Snapshot failures on Circle CI

There can be instances where the snapshot test pass on your machine but don't on circle ci, when that happens, circle CI will fail and inform the presence of the test results in a .xctestresult file. To debug this, re-run the workflow with ssh access, then you will get a command to connect through ssh to circle ci, like:

ssh -p PORT IP

Then given the path of the results file circle ci reported, you can run the following command to copy it to your machine, so you will be able to inspect the failed snapshots

scp -v -r -P PORT -i PATH_TO_SSH_KEY distiller@IP:"/Users/distiller/Library/Developer/Xcode/DerivedData/FinnUI-fblxjfyrnvejgxdktracnzlelvsi/Logs/Test/Run-Demo-2019.10.03_00-14-16--0700.xcresult" .

Make sure to replace the file path correctly to the one that circle ci reported.

Verifying changes for an existing component

If you make changes to any components you'll have to run the test for that component after changing recordMode to true. Doing this will generate a new reference image that will be used later to verify for changes that affect your component. After you've generated the reference image change recordMode back to false.


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Last commit: 4 days ago

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iOS Software Engineer @ Perry Street Software
Perry Street Software is Jack’d and SCRUFF. We are two of the world’s largest gay, bi, trans and queer social dating apps on iOS and Android. Our brands reach more than 20 million members worldwide so members can connect, meet and express themselves on a platform that prioritizes privacy and security. We invest heavily into SwiftUI and using Swift Packages to modularize the codebase.


Release Notes

FinnUI 22.2.1
2 weeks ago
  • #11: Fix: Collectionview for popular searches

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