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Awesome Flutter

Flutter Interview Questions

This file contains a number of Flutter interview questions.

Note: Keep in mind that many of these questions are open-ended and could lead to interesting discussions.

Title: Flutter Interview Questions

  • What is the difference between Stateless and Stateful Widget in Flutter?
  • Explain Stateful Widget Lifecycle?
  • When to use WidgetsBindingObserver?
  • What is a Flutter Tree Shaking?
  • What is a Spacer Widget?
  • Difference between HotRestart and Hot Reload?
  • What is an Inherited Widget and list some examples?
  • Why is the build() method on State and not Stateful Widget?
  • What is a Pub file in Dart?
  • How is Flutter native?
  • What is a Navigator and Routes in Flutter?
  • What is a PageRoute?
  • Explain async,await and Future?
  • How do I update ListView dynamically?
  • What is a Streams?
  • What are keys in Flutter and when to use it ?
  • What are Global Keys?
  • When to use main Axis Alignment and cross Axis Alignment ?
  • when do we use double.INFINITY?
  • What is an Ephemeral state?
  • What is the role of a ChangeNotifier and notifyListeners in Provider?
  • What is a ValueListenableBuilder?
  • What is an AspectRatio?
  • List a few plugins developed by the Flutter Team?
  • How does Dart AOT works?
  • Difference between var and dynamic type in Dart?
  • Difference in between 'const' and 'final' keyword in Dart?
  • what is a Null-aware Operator?
  • List Flutter's build modes?
  • What is an Isolate?
  • Views on LayoutBuilder?
  • How would you access Stateful Widget properties from it's State?
  • Is there a suggested limit to the number of FloatingActionButtons a screen can have?. Give reason(s) for your answer
  • Mention two or more operations that would require one to use or return a Future?
  • What is the purpose of SafeArea?
  • when to use mainAxisSize?
  • SizedBox VS Container?
  • List the Visibility widgets in flutter and the differences?
  • Can we use Color and Decoration property simultaneously in the Container? Explain
  • Inorder for the CrossAxisAlignment.baseline to work what is another property that we need to set?
  • when should we use resizeToAvoidBottomInset?
  • What is the difference between 'as','show' and 'hide' in an import statement?
  • What is the importance of TextEditingController?
  • why do we use "Reverse" property in Listview?
  • Difference between Modal and Persistent BottomSheet with an example?
  • How is Inherited Widget different from Provider?
  • what is a UnmodifiableListView?

Title: Animation Interview Questions

  • what is vsync?
  • when does the animation reach "completed" or "dismissed" status?
  • Difference between AnimationController and Animation?
  • When to use 'SingleTickerProviderStateMixin' and 'TickerProviderStateMixin'?
  • Define TweenAnimation?
  • State the importance of Ticker?
  • Why do we need mixins?

Title: FireStore Interview Questions

  • Difference between getDocuments() vs snapshots()?

Getting Involved

  1. How to Contribute
  2. License

Contributors:

This project is currently maintained by:

Feeling inspired? Check our Contributing guide to get started!