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Reducing UI flickering, designing in-app purchase and signup flows, and how adding delays can interestingly make a UI feel more smooth and stable.

Stacktrace

by John Sundell and Gui Rambo · English · Tech & Science

A podcast about life and technology from two developers’ perspectives. With John Sundell and Gui Rambo.

More from Stacktrace

  1. 31 Jul 2023 · 1 hr 10 min

    200: “Expectation recalibration”

    Rambo’s custom implementation of macOS desktop widgets and how they relate to Apple’s new built-in system feature, why the experience of using SwiftUI depends so much on the environment it’s being used in, and a mini-review of the ASUS ROG Ally.

  2. 22 Jun 2023 · 1 hr 18 min

    199: “Taking the cover off the API”

    John and Rambo start diving into the new announcements from WWDC23 — including the Apple Vision Pro and visionOS, the new Apple Silicon-powered Mac Pro, as well as many of the updates to Apple’s various operating systems.

  3. 1 Jun 2023 · 1 hr 23 min

    198: “WWDC23 Keynote Poker”

    With the start of WWDC23 just around the corner, John and Rambo share their predictions, hopes, and dreams as to what Apple might introduce during this year’s edition of the conference. It’s Keynote Poker time!

  4. 24 Apr 2023 · 1 hr 16 min

    196: “That new Mac smell”

    Integrating AI-powered features into an iOS app, using high refresh rate monitors with a Mac, the advantages of simple abstractions, and how the M1 and M2 Max compare in terms of Xcode work.

  5. 13 Mar 2023 · 1 hr 25 min

    195: “The Swift historian”

    John and Rambo celebrate the 5-year anniversary of the show by looking back at how their work and the technology they use have changed since the beginning of the show. Also, how might things change during the next 5 years, specifically when it comes to machine learning, AR, and the openness of Apple’s platforms?

  6. 16 Feb 2023 · 1 hr 19 min

    194: “Definitely not called a puppy”

    How game controllers communicate with a Mac, handling asynchronous data and actions in SwiftUI, and various ways to use view models within a code base.

  7. 6 Oct 2026 · 51 minNew

    211: “It’s not analytics, it’s telemetry”

    John and Rambo discuss various ways of implementing logging, telemetry, and analytics within a project, and how to decide when and how to bring in a third party dependency.

  8. 25 Aug 2026 · 1 hr 13 min

    210: ”Just bytes in a pipe”

    John and Rambo revisit the topic of closures and how their use has evolved since Objective-C’s blocks, and then go on a behind-the-scenes deep dive into AirBuddy 3.

  9. 31 Jul 2026 · 48 min

    209: “False positives or positive negatives”

    John and Rambo discuss the pros and cons of using AI assistants and agents in the context of open source, as well as how unit testing has evolved on Apple’s platforms during the last few years, with the introduction of tools such as Swift Testing.

  10. 22 Jun 2026 · 1 hr 7 min

    208: “You are the compiler”

    John and Rambo discuss some of the new APIs and technologies introduced at WWDC26, including new Swift features, and changes to frameworks like AppKit and FoundationModels. Also, the state of Swift 6, and WWDC video watching strategies.

Every episode of Stacktrace →

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