Category: Flutter Interview Question

The Await function is an asynchronous function. Its job is to wait until it gets the final value. Await is used with async functions and that run asynchronously, giving users the choice to wait for the asynchronous mode to finish before continuing.

Android Folder is used to write Android apps in Flutter. The Android Folder contains files and folders required for running the application, and these files are autogenerated during the creation of a Flutter project.

Some of the most popular apps that employ Flutter include:

The choice of animation in Flutter would depend on the specific behavior that needs to be represented. Flutter provides several animation options that can be used to represent real-world behavior. These include Physics-based animation, Tween animation, Curved animation, and Hero animation.

SizedBox is a widget in Flutter that allows us to specify an arbitrary size for a widget. It is basically used to add empty space between widgets. SizedBox also supports specifying a specific aspect ratio for its child.

There are three types of build modes in Flutter. These include: Debug– It is used to test the apps. On Android Studio, you can find a green play button on the top panel.“Flutter run” Profile– In this mode, some debugging ability is maintained – enough to profile your app’s performance, and also, it has the…

This command “Flutter run — release” is used to compile the release mode. Release mode for a web app means that the app is compiled with the dart2js compiler for best performance.

There are two main types of widgets in Flutter. These include: StatelessWidget– It does not have any state information. It is static throughout its lifecycle. Examples are Row, Text, Column, and Container. StatefulWidget– It has state information. It contains two classes: the state object and the Widget. It is dynamic because it can change the…

This “??” operator is used to evaluate and return values between two expressions. This operator first checks the expression 1 and, if it is non-null, returns its value; otherwise, it will evaluate and return the value of expression 2.

Some popular IDEs (Integrated Development Environment) for Flutter include the following: