The hottest iOS Development Substack posts right now

And their main takeaways
Category
Top Technology Topics

Xcode Organizer: Your Performance Cheat Sheet

Jacob’s Tech Tavern • 1530 implied HN points • 20 Jan 26
đź•ą Technology iOS Development
  1. Xcode Organizer gives you aggregated performance metrics and reports across your whole user base, making it the best place to spot problems early. It acts as the top of the performance funnel where most optimisations begin.
  2. Use the Organizer to find low-hanging fruit like slow launch times, scroll hitches, app terminations, and battery or storage issues, and slice data by device, OS, or app version to catch corner cases. This makes it easy to prioritise fixes that users will actually notice.
  3. After spotting issues in the Organizer, drill down with Instruments to identify root causes, fix them, and verify improvements; these small wins deliver outsized user impact and can boost your visibility and career.

Static, Dynamic, Mergeable, oh, my!

Jacob’s Tech Tavern • 7872 implied HN points • 18 Nov 24
đź•ą Technology iOS Development
  1. Libraries are just code you use in your projects. There are two types: static and dynamic, which impact how they are linked to your app.
  2. Dynamic linking happens at runtime, making builds faster but can slow down app launch times. Static linking copies everything into the app, which can make the app bigger but loads faster.
  3. Mergeable libraries combine the benefits of both static and dynamic linking, aiming to speed up builds while keeping app launch times quick.

Realtime UIAppearance refresh

Damiaan’s Substack • 2 HN points • 24 May 23
đź•ą Technology iOS Development
  1. UIAppearance in iOS is a feature that allows applying consistent theme changes to user interface elements but has limitations.
  2. By using method swizzling and custom appearance proxy, it is possible to achieve real-time theme switching behavior without private APIs.
  3. Implementing a custom appearance proxy for UIViews can help record and replay appearance styling invocations for seamless user experience.
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