flutter_interview_questions.md

FLutter Interview Questions

Android App Security Measures

• SSL Pinning
• Penetration Testing
• Encrypting the PI data while storing in Local DB
• Keystore protection
• Encrypted Storage
• Secure API keys in Android or IOS

Flutter Libraries and Architecture

Designing a Caching Library in Flutter

• Handling Different Data Types
• How to restrict caching limit
• Swapping local cache to network cache based on conditions
• Syncing the network cache to local cache

Designing an App to Support Multiple Theming in Flutter

• Handling the theme change from the API response
• Change the theme instantly across the app
• Handling the custom objects like corner radius, font, text size from themes.

Designing a Library to Download the Assets like Images from S3 and Share Across App

• Creating a manifest of assets available.
• Recursively check the manifest for available key
• Get the network path or local path of the asset and return.

Designing a Multi-Module Architecture Based on Business Domains in Flutter

• Intermodule communication
• Passing data between modules
• Handling routes

Dependency Injection in Flutter

• How to provide DI in multi module structure.
• How to make sure the dependency state update reflects across app.

Flutter Bloc Architecture

• How to handle state management using Cubit/Bloc.
• Handling Mulitple blocs for single widget.
• Difference in Statefull widget and Flutter Bloc in terms of memory and recomposition.

Unit Testing in Flutter

• How to mock dependencies in Flutter
• Handling asynchronous code in testing along with error handling
• How to test widgets using unit testing framework.