How does this skill help with SwiftUI view updates?

It identifies common causes for stale UIs, such as missing @Published attributes or incorrect threading, and provides code fixes to ensure state changes trigger re-renders.

Can it help find memory leaks?

Yes, it includes patterns for identifying retain cycles in closures and Combine publishers, along with instructions for using Xcode Instruments and the Memory Graph Debugger.

Does it support the latest SwiftUI navigation APIs?

Yes, it covers modern APIs like NavigationStack and provides solutions for programmatic navigation and destination handling introduced in iOS 16+.

Can it resolve SwiftUI Preview crashes?

It offers strategies to simplify preview environments, implement mock data providers, and use conditional compilation to isolate code that causes the Canvas to fail.

What tools does this skill leverage for debugging?

It provides guidance on using the Xcode View Hierarchy Debugger, LLDB commands, Instruments (Allocations/Time Profiler), and internal SwiftUI tools like Self._printChanges().

SwiftUI Debugging Expert

Name: SwiftUI Debugging Expert
Author: SnakeO

bySnakeO

Mobile Development

Diagnoses and resolves complex SwiftUI issues including state management, view life cycles, and memory leaks.

About

This skill provides a systematic framework for debugging SwiftUI applications on iOS and macOS. It assists developers in troubleshooting common pitfalls such as stale views, improper @State or @Binding usage, navigation failures, and retain cycles. By integrating Xcode-specific techniques, LLDB commands, and Instruments profiling strategies, it helps identify the root causes of performance bottlenecks and UI glitches. It offers production-ready code snippets, threading best practices, and preventative measures to ensure your SwiftUI codebase remains stable and performant.

Key Features

Optimization of SwiftUI Preview stability and Canvas performance
Memory leak detection and retain cycle fixes for Combine and closures
Resolution strategies for NavigationStack and navigation flow issues
Systematic diagnosis of view update and state management failures
Advanced Xcode debugging techniques using LLDB and Instruments
0 GitHub stars

Use Cases

Troubleshooting a UI component that fails to re-render when its data model changes
Investigating and fixing memory growth in a complex list-based application
Migrating legacy navigation code to the modern NavigationStack API while resolving bugs

About

Key Features

Optimization of SwiftUI Preview stability and Canvas performance
Memory leak detection and retain cycle fixes for Combine and closures
Resolution strategies for NavigationStack and navigation flow issues
Systematic diagnosis of view update and state management failures
Advanced Xcode debugging techniques using LLDB and Instruments
0 GitHub stars

Use Cases

Troubleshooting a UI component that fails to re-render when its data model changes
Investigating and fixing memory growth in a complex list-based application
Migrating legacy navigation code to the modern NavigationStack API while resolving bugs