Google Flutter Essentials

Question 1

Flutter's original version was codenamed _____and ran on the Android operating system.

Accepted Answer

Sky

Answer

Flutter's initial version was indeed codenamed 'Sky' when it was first introduced by Google. It was conceived as a new mobile UI framework, primarily designed to run efficiently on the Android operating system. This early development laid the foundation for what would become the cross-platform Flutter framework we know today.

Question 2

In flutter, a Widget is equivalent to:

Accepted Answer

A control or object that can be included in our applications.

Answer

In Flutter, a Widget is the fundamental building block of the user interface. Everything you see on the screen, from a simple text label to a complex layout structure, is a widget. They are essentially declarative descriptions of a part of your user interface, acting as controls or objects that can be composed to create your application's UI.

Question 3

Corresponds to a Widget that does not save a state and cannot modify on its own.

Accepted Answer

StatelessWidget

Answer

A StatelessWidget is a widget that does not have any mutable state. Its configuration is entirely defined by the arguments passed to its constructor, and once built, it cannot change its appearance or behavior without being rebuilt by its parent. This makes them ideal for static UI elements that don't need to react to user input or data changes internally.

Question 4

They are two of the directories that make up a project's structure in Flutter.

Accepted Answer

android
ios

Answer

When you create a Flutter project, it automatically generates platform-specific directories, most notably 'android' and 'ios'. These folders contain the native project files required to build and run your Flutter application on Android and iOS devices, respectively. They allow for platform-specific configurations, integrations with native APIs, and the embedding of the Flutter engine.

Question 5

They are the primary methods used in Flutter to define the execution point of our application.

Accepted Answer

main
runApp

Answer

Every Flutter application starts its execution with the `main()` function, which is the entry point for all Dart programs. Inside `main()`, the `runApp()` function is called, taking a Widget as an argument. This `runApp()` function is responsible for inflating the given widget and attaching it to the screen, making it the root of your application's widget tree.

Google Flutter Practice Test

Google Flutter Practice Test

Google Flutter Essentials