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330 interview questionsfor Mobile developer (2024)

Test your technical skills before an interview of Mobile developer with 330 corrected questions. Beginner, Intermediate or Expert level.

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330 questions
Easy
17 votes1876 runs0 comment

List the different build modes in Flutter

Mobile developer
build
modes
Clément Devos (W3D Team)at Jan 4, 2022
Easy
8 votes1702 runs0 comment

Explain the difference between the *final* and *const* keywords in Flutter.

Mobile developer
flutter
const
final
Clément Devos (W3D Team)at Jan 4, 2022
Easy
7 votes1861 runs0 comment

Explain the difference between the `main` and `runApp` methods in Flutter.

Mobile developer
flutter
main
runApp
Clément Devos (W3D Team)at Jan 4, 2022
Hard
7 votes721 runs0 comment

How to flatten a list of lists in Kotlin

Mobile developer
list
map
Anonymous authorat Jan 18, 2022
Easy
6 votes1917 runs
6 comments

What is Dash?

Mobile developer
dart
flutter
Clément Devos (W3D Team)at Jan 4, 2022
Medium
6 votes408 runs2 comments

How flexbox works in React Native?

Mobile developer
flexbox
react native
Davidat Sep 6, 2023
Expert
5 votes1780 runs1 comment

What is the BuildContext used for in Flutter?

Mobile developer
flutter
widgets
buildcontext
Clément Devos (W3D Team)at Jan 4, 2022
Easy
5 votes660 runs1 comment

Write a function that returns the maximum of two integers in Kotlin

Mobile developer
functions
kotlin
Anonymous authorat Jan 18, 2022
Hard
5 votes476 runs0 comment

Write a React Native animation that spins an image.

Mobile developer
react native
animation
component
Victor Sabatierat Dec 2, 2021
Easy
5 votes393 runs2 comments

What is the purpose of a RecyclerView in Android?

Mobile developer
list
adapter
Nicolas Laurentat Nov 29, 2021
Easy
4 votes1814 runs0 comment

Explain the difference between a Hot Restart and a Hot Reload in Flutter.

Mobile developer
flutter
hot reload
hot restart
Clément Devos (W3D Team)at Jan 4, 2022
Easy
4 votes1705 runs0 comment

What are the different types of Dart Streams?

Mobile developer
dart
streams
Clément Devos (W3D Team)at Jan 4, 2022
Hard
4 votes1678 runs0 comment

How to communicate with Android/ iOS code with Flutter?

Mobile developer
flutter
android
ios
Clément Devos (W3D Team)at Jan 4, 2022
Hard
4 votes1632 runs0 comment

How to make a Text widget display a double yellow highlight in Flutter

Mobile developer
flutter
theme
Clément Devos (W3D Team)at Jan 4, 2022
Hard
4 votes976 runs0 comment

What are Semantics in Flutter?

Mobile developer
flutter
widgets
Clément Devos (W3D Team)at Jan 4, 2022
Hard
4 votes836 runs2 comments

What are the differences between the Offstage Widget and Opacity?

Mobile developer
flutter
widget
opacity
Clément Devos (W3D Team)at Jan 4, 2022
Medium
4 votes662 runs0 comment

Kotlin: Compile the following code and see the error.

Mobile developer
kotlin
null
Anonymous authorat Jan 18, 2022
Easy
3 votes1717 runs1 comment

What is the `??=` operator for in Flutter?

Mobile developer
operators
null
Clément Devos (W3D Team)at Aug 26, 2024
Medium
3 votes573 runs0 comment

Write a Kotlin program that evaluates an arithmetic expression.

Mobile developer
kotlin
data class
sealed class
Anonymous authorat Jan 18, 2022
Hard
3 votes399 runs0 comment

How to check if a variable is defined in Swift

Mobile developer
swift
optionals
Jorge Gomesat Nov 27, 2021
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