monnguyen2502 / flutter-interview-questions

This repo contains a list of helpful Flutter related questions you can use to interview potential candidates.

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.

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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?
• Difference between these operators "?? and ?."

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()?

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