fastlane

June Skip Newsletter

Jun 30, 2024 - 5 min read - 967 words

Welcome to the June edition of the Skip.tools newsletter! This month we will showcase some of the improvements and advancements we've made to the Skip platform, along with some current events and a peek at our upcoming roadmap.

New Skip Intro Video

We've posted a new Skip "Showreel" video, providing a quick 3-minute overview of Skip and the highlights of using it to build native dual-platform apps. You can find it on YouTube at: https://www.youtube.com/watch?v=lQjaaAqgxp4. This and other videos are also available from our Tour page at: https://skip.tools/tour/. We will be posting new videos in the coming weeks and months, so consider either following us on YouTube, or subscribing to our RSS feed from https://skip.tools/blog/.

Skip Showcase on the Stores

The Skip Showcase app (https://skip.tools/docs/samples/skipapp-showcase/) has long been our go-to for providing a side-by-side comparison of SwiftUI components with the Jetpack Compose equivalents that SkipUI provides. Browsing thought these components simultaneously on an iPhone and Android device gives a good sense Skip's capabilities and power, and is a great way to demonstrate Skip's benefits to project managers and stakeholders before breaking ground on a new project.

In order to make it even easier to get this handy app on your devices, we've published the Skip Showcase app to both the Apple App Store as well as the Google Play Store. This enables you to quickly grab a demo app that highlights Skip's power, and feel for yourself the benefit of using a genuinely native app on both platforms. Download it today and see for yourself what Skip can do!

New Framework: SkipKeychain

Using the Keychain has long been the standard way to store bits of sensitive data, such as passwords and notes, on your iOS device. We're happy to announce a brand-new SkipKeychain module that provides an API to read and write sensitive data both on iOS and Android. As with the rest of Skip's library ecosystem, it is free and open-source and available on GitHub at: https://github.com/skiptools/skip-keychain/. We're only on version 0.0.1 right now, but we expect to be able to iterate quickly to add features and functionality that the community wants to see in this nascent project.

Skip and Kotlin Multiplatform

Skip and Kotlin Multiplatform (KMP) are two sides of the same coin. Skip brings your Swift/iOS codebase to Android, and KMP brings your Kotlin/Android codebase to iOS. Many people have assumed that this diametrical opposition means that the two technologies are incompatible. But this is not the case! KMP modules can be embedded in Skip apps, and they work seamlessly, for the most part, with the Swift-to-Kotlin code transpilation that Skip provides. Check out our deep dive into the integration at https://skip.tools/blog/skip-and-kotlin-multiplatform/ and learn how you can take your business-logic KMP modules and integrate them in both the iOS and Android sides of your Skip app.

Skip Slack Group

By popular demand, we are starting to migrate away from our gitter.im Matrix chat system to a new Skiptools Slack group. Going forward, this will be the preferred medium for live discussions and getting technical help. The Skip team will be standing by to answer questions and help with any issues that members of the community may encounter. You can sign up and join the conversation at: https://skip.tools/slack/.

Skip and Fastlane

The last mile of app development can be the most grueling. Taking your tested and polished 1.0 app and getting it into the hands of your users ought to be quick and simple, but it isn't. Running the gauntlet of the app store submission process is hard enough when you only target one platform, but when you target both iOS and Android, you need to contend with a plethora of hurdles for both the Apple App Store and the Google Play Store.

Fortunately, the popular Fastlane tool ( https://fastlane.tools/ ) has evolved over the years to help alleviate some of the drudgery of submitting new apps, as well as updated releases, to these storefronts. And we're happy to report that new projects created with the `skip init` command will now include Fastlane templates that provide everything you need to automate your app distributions. Read more about it on our blog post: https://skip.tools/blog/skip-and-fastlane/.

WWDC, Google I/O, and Skip

Google I/O 2024 and WWDC 2024, the preeminent conferences for Google and Apple developers alike, went back-to-back in June. These exciting events unveiled a lot of new features to the languages and frameworks that are used daily by mobile app developers. We here on the Skip team are working hard to take advantage of many of the new features that were announced.

Language evolution was announced as well: Kotlin 2.0 (final) was released, and Swift 6.0 (beta) was offered up in preview. As we march towards a Skip 1.0 release, we are going to make sure that all the code we process and generate is compatible with both these next-generation language releases, and takes advantages of as many of the new features as possible, while still remaining compatible with prior source and binary releases. Skip 1.0 is right around the corner, and it will be right up to date with the latest and greatest!

Thanks!

You can follow us on Mastodon at https://mas.to/@skiptools, and join in the Skip discussions at http://community.skip.tools/. The Skip FAQ at https://skip.tools/docs/faq/ is there to answer any questions, and be sure to check out the video tours at https://skip.tools/tour/. And, as always, you can reach out directly to us on our Slack channel at https://skip.tools/slack/.

Happy Skipping!

Going the last mile with Skip and Fastlane

Jun 19, 2024 - 3 min read - 526 words

Getting your finished app into the hands of users can be a laborious process. The individual app stores – the Apple App Store the the Google Play Store, primarily – have their own cumbersome web-based processes for uploading the app binary, adding metadata and screenshots, and providing the necessarily content ratings and regulatory information required by various jurisdictions. And once you have gone through all the tedious manual steps needed to release the initial version of the app, each and every update will also need to follow many of those steps all over again.

Fortunately, this process has become so irksome, to so many developers, that a community tool called “Fastlane” was born. In the documentation ↗, it describes itself as:

fastlane is the easiest way to automate beta deployments and releases for your iOS and Android apps. 🚀 It handles all tedious tasks, like generating screenshots, dealing with code signing, and releasing your application.

Fastlane is architected as a collection of plugins that handle all manner of app distribution tasks, like packaging, signing, and uploading. It is configured with a platform-specific hierarchy of local text and ruby configuration files, one for Android ↗ and another for iOS ↗.

Skip 0.8.50 now has built-in support for creating a default fastlane configuration for each of your iOS and Android projects. When you create a new project with the command:

skip init --fastlane --appid=app.bundle.id package-name AppName

The Darwin/ and Android/ folders will each contain a template for the fastlane project, which holds the metadata files that can be edited to fill in information like the app’s title, description, content ratings, and screenshots.

Once you fill in the generated text files with your app’s specific details, such as the title, description, and keywords, you can then use the fastlane release command in each of the folders to create new releases of your app and submit them either to the store’s beta test service, or to be reviewed for worldwide release.

Being able to quickly build and upload a new release with a single command is a great help in maintaining a rapid release cadence. It enables “continuous delivery”, defined by Wikipedia ↗ as:

Continuous delivery (CD) is a software engineering approach in which teams produce software in short cycles, ensuring that the software can be reliably released at any time. It aims at building, testing, and releasing software with greater speed and frequency. The approach helps reduce the cost, time, and risk of delivering changes by allowing for more incremental updates to applications in production. A straightforward and repeatable deployment process is important for continuous delivery.

We are using this process ourselves with those Skip apps that we are delivering to the app stores, like the Skip Showcase app that demonstrates the various SkipUI components (App Store link ↗, Play Store link ↗).

Being able to submit a new release to both the major app storefronts with a single command is a joy. It can be used to submit quick fixes, or as part of a continuous integration workflow triggered by tagging your source release. However you use it, Fastlane eliminates much of the repetition and tedium of release management.

For more information on Skip’s Fastlane integration, see the deployment documentation.