Performance & Optimization
App performance optimization, rendering, memory management, and build modes
6
Easy Questions
8
Medium Questions
2
Hard Questions
Easy Questions (6)
Diff between positional and Named params in func ? example :- `func({required CancelToken cancelToken})` VS `func(CancelToken cancelToken)`
View Details →Code
Difference Between a Cold Start and a Hot Restart?
View Details →Code
Why does the first Flutter app build take so long?
flutterbuildgradlexcodecompilation
View Details →Code
What frame rate in a Flutter app is good?
flutterperformancefpsframe-rateoptimization
Medium Questions (8)
**Re-execution:** After teardown, the framework re-executes `main()` from the beginning within the same VM.
View Details →Code
Use cached width and height, also use disk cache width and height.
View Details →Code
How do you handle performance optimization - app size, rendering speed, and load time?
performance
What is memory leaks how memory leaks can happen in flutter and how to debug it and proactively how to fix it?
memory-leaksperformancedebuggingoptimization
Explain clearly on Skia vs Impeller rendering engine in flutter with some proper examples
flutterskiaimpellerrenderingperformance
How to activate Flutter DevTools and how to check memory leaks?
flutterdevtoolsmemorydebuggingperformance
How to check jank in Flutter and how to avoid it in future?
flutterperformancejankfpsoptimization
What is the difference between precacheImage and CachedNetworkImage in Flutter?
flutterimagescachingperformanceprecache
Hard Questions (2)
What is code-splitting in Flutter, and how does it help?
performanceoptimizationcode-splitting
When the user says the Flutter app is draining a lot of battery, what to do? How to analyse proactively, how to avoid it, and how to debug it?
flutterbatteryperformanceoptimizationdebugging
View Details →Code