Trying to Build a Simple Live Activity Timer… and Hitting OS Limits

📰 Dev.to · Developer On Wheels

Learn to build a simple live activity timer and overcome OS limits

intermediate Published 6 Sept 2025
Action Steps
  1. Create a new Live Activity project using Xcode to start building the timer
  2. Design a custom user interface for the Live Activity using SwiftUI
  3. Implement a timer function using Swift to update the Live Activity in real-time
  4. Test the Live Activity on a physical device to identify potential OS limits
  5. Optimize the code to work within the OS limits and ensure a smooth user experience
Who Needs to Know This

Mobile app developers and designers can benefit from this lesson to create interactive live activities, and team leaders can use this to understand the limitations of OS and plan accordingly

Key Insight

💡 OS limits can affect the performance of Live Activities, and optimizing code is crucial for a smooth user experience

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🕒️ Build a simple live activity timer and overcome OS limits! 💻

Key Takeaways

Learn to build a simple live activity timer and overcome OS limits

Full Article

I thought it would be simple: show a custom timer counting up inside a Live Activity. Sounds like the...
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