What Triggers ANRs?
- UI thread Blockage: Heavy operations on the UI thread can freeze your app.
- Deadlocks: Threads waiting on each other indefinitely can cause an ANR.
- Infinite Loops: Loops that run indefinitely on the UI thread prevent other operations.
- Misuse of Synchronous IPC Calls: Excessive synchronous IPC can delay UI thread tasks.
Avoiding ANRs
- Move long tasks to background threads using Kotlin coroutines.
- Utilize Android Studio’s profiling and debugging tools to identify and address performance issues.
- Use progress indicators for lengthy operations and manage them with callbacks or listeners.
Handling ANRs
While ANRs can't be caught in code, optimizing app performance can significantly reduce their occurrence. Proactive monitoring, performance optimization, and employing best practices for background processing are crucial in minimizing ANRs and enhancing the user experience.
Suggested Resources
- Understanding ANRs (Android Developers) - Official Android documentation on ANRs, including how to diagnose and fix them.
- Optimize Background Processes - Guidelines for optimizing background processes to prevent ANRs.
- Android Studio Profiling Tools - A guide to using Android Studio's built-in tools to identify performance bottlenecks.
