Following the Swift Evolution can be time-consuming, but Swift newsletters enable you, as an app developer, to stay current. The language is moving fast, and new features appear every year. While you might be able to develop apps without adopting new features immediately, finding a structured way to keep yourself in the loop is necessary. …
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SwiftLee 2023: A Year in Review
Time flies when you’re having fun, and 2023 has definitely been one of those years. It’s been a year full of achievements, international conferences, and many articles & newsletters. It’s also been the year of Apple Vision Pro, Xcode 15, and Swift 5.9. If you follow my newsletter, you’ll know I like working structured with …
Using campaign links to track impressions, downloads, and sales
Campaign links open your App Store product page and allow you to track the performance of your marketing channels. As an app developer, it’s crucial to understand how users discover your app. For example, many new users find Daily via the web, primarily via organic search (Google Search), paid ads (Google Ads), social media (mainly …
Symbolicate crash logs with Xcode
When you receive an unreadable crash report, you can symbolicate crash logs with the help of Xcode. As a developer, it’s essential to identify symbols and ensure you can fix a crash that potentially affects many of your app’s users. Many of us will benefit from an online platform like Firebase or Datadog, which will …
SFSafariViewController in SwiftUI: Open webpages in-app
SFSafariViewController can be used to let your users open webpages in-app instead of in an external browser. While the view controller works great for UIKit, getting it to work in a SwiftUI app might be challenging. Whenever you’re running into cases where a UIKit solution is available only, you want to know how to write …
Swift Evolution: Reading and learning from proposals
The Swift Programming Language constantly evolves, and most of its changes result from public proposals inside the Swift Evolution repository. The proposals can tell you what changes are coming up next, which is excellent if you want to stay updated with the latest developments. Swift Evolution Proposals can also help you understand newly released features. …
Unit testing async/await Swift code
Unit tests allow you to validate code written using the latest concurrency framework and async/await. While writing tests doesn’t differ much from synchronous tests, there are a few crucial concepts to be aware of when validating asynchronous code. If you’re new to async/await, I encourage you first to read Async await in Swift explained with …
Debugging SwiftUI views: what caused that change?
Debugging SwiftUI views is an essential skill when writing dynamic views with several redrawing triggers. Property wrappers like @State and @ObservedObject will redraw your view based on a changed value. This is often expected behavior, and things look like they should. However, in so-called Massive SwiftUI Views (MSV), there could be many different triggers causing …
RocketSim 12.0: Builds Apps Faster
RocketSim is a developer tool that gives your Xcode Simulator extra functionalities to increase day-to-day development productivity. A floating window becomes visible next to your active Simulator to provide additional functionalities while not too intrusive. Some significant features include recordings with touches, audio, and bezels, location simulation, Simulator airplane mode, and several design comparison features. …
Promotional offers: Increase App Revenue using discounts
Promotional offers allow you to increase the revenue for your app by promoting a user’s subscription to a new offer. You can use this technique to win back users who canceled their subscription or to upsell users from a monthly to a yearly plan. Implementing promotional offers differs per project depending on whether you use …