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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- What is the difference between a StatelessWidget and a StatefulWidget in Flutter?
- Explain the Stateful Widget Lifecycle?
- When do you use the WidgetsBindingObserver?
- What is Flutter tree shaking?
- What is a Spacer widget?
- What is the difference between hot restart and hot reload?
- What is an InheritedWidget? List some examples.
- Why is the build() method on State and not StatefulWidgets?
- What is a pubspec file in Dart?
- How is Flutter native?
- What is a Navigator and what are Routes in Flutter?
- What is a PageRoute?
- Explain async, await and Futures.
- How can you update a ListView dynamically?
- What is a Stream?
- What are keys in Flutter and when should you use it?
- What are GlobalKeys?
- When should you use mainAxisAlignment and crossAxisAlignment?
- When can you use double.INFINITY?
- What is Ticker, Tween and AnimatedBuilder?
- What is ephemeral state?
- What is an AspectRatio widget used for?
- How would you access StatefulWidget properties from its State?
- Is there a suggested limit to the number of FloatingActionButtons a screen can have? Give a reason(s) for your answer
- Mention two or more operations that would require you to use or return a Future.
- What is the purpose of a SafeArea?
- when to use a 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 a resizeToAvoidBottomInset?
- What is the difference between 'as','show' and 'hide' in an import statement?
- What is the importance of a TextEditingController?
- why do we use a "Reverse" property in a Listview?
- Difference between a Modal and Persistent BottomSheet with an example?
- How is an Inherited Widget different from a Provider?
- what is an UnmodifiableListView?
- Difference between these operators "?? and ?."
- 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?
- Difference between getDocuments() vs snapshots()?
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