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Flutter Interview Questions

• 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.