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Why is Flutter preferred over other mobile app developing tools?
Flutter is a paid proprietary framework that offers limited community support.
Flutter only supports iOS development and requires separate codebases for Android.
Flutter supports cross-platform development, easy and flexible programming, and faster building process.
Flutter apps are larger in size and have slower performance compared to native apps.
What are packages and plugins in Flutter?
Both packages and plugins are used exclusively for UI design.
A package is a set of classes and interfaces for modular code, while a plugin enhances app functionality.
Packages are for backend services, and plugins are for database management.
Packages are pre-compiled apps, and plugins are for debugging.
What are the limitations of Flutter?
It has an extensive collection of third-party libraries and a small release size.
Small number of third-party libraries, larger release size, requires Dart, limited mobile ad platform support, and not yet widely adopted.
It is a mature framework with widespread adoption and comprehensive mobile ad platform support.
It only works with Java and has a very small learning curve.
Why does it generally take a long time to develop a Flutter app?
Flutter apps are compiled to web assembly, which is a slow process.
Building a Flutter app takes longer the first time due to the generation of device-specific IPA or APK files using Xcode and Gradle.
The Flutter framework itself is very large and slow to download.
It requires manual configuration of native platform builds every time.
What are keys and how do you use them?
Keys are used only for debugging and no impact on widget state.
Keys are IDs for Widgets, Elements, and SemanticsNodes, preserving widget state during updates, and are useful for stateful widgets.
Keys are a deprecated feature in Flutter and should not be used.
Keys are used to encrypt widget data for security purposes.
What are the different types of streams in Dart?
Synchronous Streams and Asynchronous Streams.
Broadcast Streams and Single Subscription Streams.
Input Streams and Output Streams.
Data Streams and Control Streams.
What is pubspec.yaml file?
It is a configuration file for native Android build settings.
It is a file containing information about a project's dependencies, such as packages and their versions, written in YAML.
It is a file used exclusively for defining UI layouts in Flutter.
It is the main Dart source code file for a Flutter application.
What is Flutter?
A programming language for web development.
An open-source UI software development kit (SDK) for cross-platform applications from a single codebase.
An operating system for mobile devices.
A database management system.
Flutter is developed by which company?
Apple
Google
Microsoft
Facebook
What was the first version of Flutter which ran on an Android operating system?
Horizon
Sky
Aurora
Nebula
Can you tell us the four main elements of Flutter?
Dart compiler, Android SDK, iOS SDK, and web browser.
Flutter engine, Widgets, Design-specific widgets, and Foundation Library.
UI, Backend, Database, and API.
Widgets, Layouts, Themes, and Assets.
When was the first version of Flutter released?
December 2018
May 2017
January 2015
June 2019
Flutter is written in which language?
Java
Dart
Kotlin
Swift
What does the acronym SDK stand for?
System Design Kernel
Software Development Kit
Source Data Keeper
Standard Development Key
Can you name some best editors for Flutter development?
Notepad, WordPad, Sublime Text, and Atom.
Android Studio, IntelliJ Idea, Emac, Visual Studio, and Codemagic.
Xcode, Visual Basic, Eclipse, and NetBeans.
Dreamweaver, FrontPage, GIMP, and Figma.
Which operator is used to evaluate and return values between two expressions?
??
&&
||
==
Can you tell us how many kinds of widgets there are in Flutter?
Three: Basic, Layout, and Interactive.
Two: StatelessWidget and StatefulWidget.
Four: Material, Cupertino, Text, and Image.
Five: stateless, stateful, inherited, proxy, and render.
Can you name the command used to compile the release mode?
flutter build --debug
flutter run --release
flutter deploy --production
flutter compile --final
Name the different types of build modes in Flutter.
Development, Staging, and Production.
Debug, Profile, and Release.
Test, Beta, and Stable.
Compile, Link, and Run.
Which widget in Flutter is a box that comes with a different size?
SizedBox
Container
BoxDecoration
Flexible
Suppose you have to represent real-world behavior in Flutter, which animation would you use?
Physics-based, Tween, Curved, and Hero animations.
Static animations only.
CSS animations.
JavaScript animations.
Name some popular apps that use Flutter.
Facebook, Twitter, Instagram, and WhatsApp.
Google Ads, Hamilton, KlasterMe, and Reflectly.
Microsoft Word, Excel, PowerPoint, and Outlook.
Chrome, Firefox, Safari, and Edge.
Which folder is used to write Android apps in Flutter?
iOS Folder
Android Folder
Web Folder
Linux Folder
What is the use of the Await function?
It is used to pause the entire application execution indefinitely.
It is an asynchronous function that waits until it gets the final value, used with async functions.
It is a synchronous function that executes immediately.
It is used to force a rebuild of the widget tree.
Can you tell us which function compiles and updates the app?
Cold restart
Hot reload
Full rebuild
Debugger attach