CO2404 Cross Platform Development: Flutter

What is the difference between StatefulWidget and StatelessWidget?

• StatefulWidget is immutable, StatelessWidget can change its state.
• StatefulWidget and StatelessWidget are the same.
• StatefulWidget can change its state, StatelessWidget is immutable.
• StatefulWidget is used for stateless widgets, StatelessWidget is used for stateful widgets.

What is the purpose of the pubspec.yaml file in a Flutter project?

• It is used to define the project's metadata, dependencies, and configurations.
• It is used to run the Flutter project
• It is used to store user interface designs
• It is used to define the project's backend logic

What is the "BuildContext" parameter used for in Flutter?

• It determines the color scheme of the app
• It controls the animation of widgets
• It is used for defining the layout of a widget
• It provides access to the location of a widget within the widget tree.

How can you manage user input in a Flutter app?

• By directly modifying widget properties.

• Using TextEditingController with TextFormFields.

• Through custom event listeners.

• There's no built-in way for user input.

What is a common approach for handling asynchronous operations in Flutter?

• Using Callbacks and Promises
• Using while loops for waiting
• Using synchronous functions only
• Using Future and async/await

What is the "InheritedWidget" class used for in Flutter?

• InheritedWidget is used for styling widgets in Flutter
• InheritedWidget is used for handling user input in Flutter
• InheritedWidget is used for managing state in Flutter
• In Flutter, the 'InheritedWidget' class is used to provide data that can be accessed by any descendant widget in the widget tree.

What is the significance of the "Material Design" principles in Flutter?

• Material Design principles in Flutter are only for advanced users.
• Material Design principles in Flutter have no impact on user experience.
• Material Design principles in Flutter are significant for maintaining a consistent and visually appealing user interface.
• Material Design principles in Flutter are only applicable to web development.

How can you create animations in a Flutter app?

• Implement animations using Angular in a Flutter app
• Use the built-in animation library in Flutter or pre-built widgets like AnimatedContainer, Hero, and FadeTransition.
• Utilize jQuery for animations in Flutter
• Use the built-in animation library in React Native

What are some key considerations for internationalizing a Flutter app (i18n)?

• Use Flutter's built-in internationalization support but don't organize translations in separate files
• Don't use keys for text translation in the Flutter app
• Only support left-to-right languages in the Flutter app
• Use Flutter's built-in internationalization support, organize translations in separate files, use keys for text translation, support right-to-left languages, and test the app with different locales.

What is the difference between a "Stack" and a "Row" widget in Flutter?

• A 'Stack' widget arranges widgets horizontally in a single line, while a 'Row' widget allows you to place widgets on top of each other.
• A 'Stack' widget arranges widgets in a grid layout, while a 'Row' widget arranges widgets in a vertical line.
• A 'Stack' widget allows you to place widgets on top of each other, while a 'Row' widget arranges widgets horizontally in a single line.
• A 'Stack' widget is used for creating columns of widgets, while a 'Row' widget is used for creating rows of widgets.