Question 1

How do I format arrays and dictionaries in Objective-C according to Spotify's style?

Accepted Answer

For arrays, use one-liners unless items are long, then break into multiple lines. For dictionaries, one-liners only for single pairs; otherwise, format with each key-value on a new line and a trailing comma, as specified in the Container Formatting section.

Question 2

What's the difference between Spotify's iOS style guide and Apple's official guidelines?

Accepted Answer

Spotify's guide builds on Apple's Cocoa Coding Guidelines but adds specific rules like 120-character line limits, 4-space indentation, and Spotify-specific conventions such as the `spt_` prefix for categories. It's more prescriptive for internal consistency at Spotify.

Question 3

How to document methods in Xcode using the /// style?

Accepted Answer

Use /// for documentation comments on methods and properties, and leverage Xcode's shortcut Option+Cmd+/ to generate templates with @param and @return tags. This ensures consistent and IDE-friendly documentation across the codebase.

Question 4

Is Spotify's Objective-C style guide still useful in 2024?

Accepted Answer

It provides solid fundamentals for Objective-C, but its last update was in 2016, so it may not cover modern iOS development trends. It's best for legacy Objective-C projects or teams maintaining such codebases, rather than new Swift-focused apps.

Question 5

Can I use this style guide for Swift projects?

Accepted Answer

No, this guide is specifically for Objective-C and Objective-C++ code. For Swift, you would need a separate style guide, as Swift has different syntax, conventions, and best practices that aren't addressed here.

Question 6

How to enforce coding style rules in an iOS team without automated tools?

Accepted Answer

The guide relies on manual adherence through code reviews and clear examples, but teams may need to integrate third-party linters or formatters like clang-format, as the guide itself doesn't provide built-in tooling support.

Spotify Objective-C Coding Style

What is Spotify Objective-C Coding Style?

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