From Slow to Fast: Profiling SwiftUI Applications for Peak Performance - SwiftUI Testing Tutorial 1

Are you tired of your SwiftUI app’s performance not living up to your expectations? In this deep-dive tutorial, I walk you through three powerful strategies to pinpoint and squash performance issues in SwiftUI 🚀. You’ll learn how to use Instruments, debugging in Xcode, and visual cues to optimize your app’s efficiency. Stop guessing and start mastering the art of SwiftUI performance! In this video, you’ll discover: - How to use Instruments to profile your app’s performance and identify which views are updating and why. - Debugging techniques in Xcode to understand the lifecycle of your views and the impact of state changes. - Visual tricks to instantly see when your views are being redrawn or when they’re suffering from bad view identification. By the end of this tutorial, you’ll have the tools and knowledge to tackle performance problems head-on, ensuring your SwiftUI app runs smoothly, no matter how complex it gets. Plus, I’ll share a cheat sheet of common SwiftUI pitfalls and best practices to keep your app’s performance in top shape. Don’t let performance issues slow you down. Click play and take the first step towards a faster, more responsive SwiftUI app! Overview 00:00 Introduction 02:58 How to profile SwiftUI with Instruments 10:24 Example: Analyzing SwiftUI data flow with Instruments 16:20 Debugging SwiftUI with print changes in Xcode 27:20 Example: Finding mistakes with bad view identity implementations 31:35 Analysing SwiftUI with visual hints 38:55 Wrap up 🔗 Find the project link: https://github.com/gahntpo/SwiftUIPerformance SwiftUI Performance Series: This video is part of a series focused on SwiftUI performance—catch up on previous topics like debugging with Instruments and setting up efficient data flows. https://youtu.be/aH15GUzk85Y https://youtu.be/yvfv6N60-vY https://youtu.be/tRp6I3epizk https://youtu.be/ZeZPmC861E8 If you liked what you learned and you want to see more, check out one of my courses! 👨‍💻 SwiftUI Layout course https://learn.swiftyplace.com/swiftui-layout-course 👨‍💻 Core Data and macOS with SwiftUI course https://learn.swiftyplace.com/swiftui-core-data-mastery-course #SwiftUI #PerformanceTuning #Debugging #iOSDevelopment #SwiftUITutorial #Xcode #Instruments #Optimization