Flutter Questions & Answers
Flutter Questions & Answers
Hello there!
Flutter is a powerful tool in today’s tech world that can help you advance your career. A solid understanding of Flutter opens doors to exciting opportunities. We’ve gathered some basic Flutter interview questions and answers here for you. Hope they come in handy on your Flutter journey. If you are thinking about taking your skills to the next level we suggest you Flutter training course in Kochi by Softloom IT Training led by experts. Best wishes for selecting a path that aligns perfectly with your career goals!
Explore basic Flutter interview questions and answers below !
What is Flutter?
Flutter is an open-source UI software development toolkit created by Google for building natively compiled applications for mobile, web, and desktop from a single codebase.
Which programming language is used in Flutter?
Dart is the programming language used in Flutter.
What is the primary advantage of Flutter?
Flutter allows developers to create cross-platform applications with a single codebase, resulting in faster development and easier maintenance.
What is a widget in Flutter?
In Flutter, a widget is a basic building block of the user interface, representing everything from structural elements like buttons and containers to stylistic elements like padding and colors.
How does Flutter achieve high-performance UI?
Flutter achieves high-performance UI by using a graphics engine called Skia, integrated directly into the framework. It also employs a reactive framework, allowing for fast and efficient rendering of UI components.
What is the difference between Stateful and Stateless widgets in Flutter?
In Flutter, Stateful widgets can change dynamically during runtime, while Stateless widgets remain static. Stateful widgets maintain a mutable state that can be modified, whereas Stateless widgets are immutable and cannot be changed once they are built.
How does Flutter handle platform-specific code?
Flutter uses a platform channel to communicate with native code. It enables the integration of platform-specific code written in languages like Java or Swift. This allows developers to access native features and APIs when necessary.
What is the purpose of the 'pubspec.yaml' file in Flutter projects?
The ‘pubspec.yaml’ file in Flutter projects is a configuration file used to define the project’s dependencies, including packages and assets. It also contains metadata about the project, such as its name, version, and description.
Explain the role of the 'BuildContext' in Flutter.
‘BuildContext’ in Flutter represents the location of a widget within the widget tree. It is crucial for Flutter to efficiently rebuild and update widgets. It provides information about the widget’s position in the hierarchy and allows the widget to interact with the surrounding elements.
How does hot reload work in Flutter, and why is it beneficial for developers?
Hot reload in Flutter is a feature that allows developers to inject updated code into a running application without restarting it. This significantly speeds up the development process by instantly reflecting code changes, preserving the app’s state. It enhances productivity by providing a quick feedback loop during development.
