30 Android Development Interview Questions (MCQs) with Answers – Prepare for Your Next Interview

Hello, welcome to our blog. Are you preparing for an Android development interview? Whether you are a beginner or an experienced developer, understanding and knowing the basic concepts of Android is very important and is the key to your interview. In this blog, we have provided a collection of very important Top Android Development Interview Questions (MCQs), which cover the basic concepts of Android development from Lifecycle Management to important concepts like UI components and background services. These questions will help you prepare thoroughly for your next Android Development Interview. Let’s discuss the questions.

Android Development Interview MCQs: Top 30 Questions with Answers

1. Which of the following is NOT an activity lifecycle method?
  • a) onCreate()
  • b) onStart()
  • c) onPause()
  • d) onBackPressed()

Answer: d) onBackPressed()

Explanation: The onBackPressed() method handles the back button press and is not part of the activity lifecycle. The lifecycle methods include onCreate(), onStart(), onResume(), onPause(), onStop(), and onDestroy().

2. Which file is used to declare permissions, services, and activities in an Android app?
  • a) build.gradle
  • b) AndroidManifest.xml
  • c) activity_main.xml
  • d) strings.xml

Answer: b) AndroidManifest.xml
Explanation: The AndroidManifest.xml file is essential for configuring the structure of an Android app, such as declaring activities, services, permissions, and receivers.

3. What is the purpose of the Gradle file in Android projects?
  • a) It handles UI layouts.
  • b) It manages dependencies and builds the project.
  • c) It configures app permissions.
  • d) It defines resources like strings and colors.

Answer: b) It manages dependencies and builds the project.

Answer: b) It manages dependencies and builds the project.
Explanation: Gradle is a build automation tool used in Android to manage dependencies, compile code, and automate building tasks.

4. What is an Intent in Android?
  • a) A user interface component.
  • b) A mechanism for launching activities or services.
  • c) A background service.
  • d) A content provider interface.

Answer: b) A mechanism for launching activities or services.
Explanation: Intent is a messaging object used to request actions from other components of the app or other apps. Intents are used to launch activities or communicate between components.

5. Which of the following methods is used to handle screen rotations or configuration changes?
  • a) onPause()
  • b) onConfigurationChanged()
  • c) onRestart()
  • d) onDestroy()

Answer: b) onConfigurationChanged()
Explanation: onConfigurationChanged() is triggered when a device configuration changes, like screen orientation, and allows developers to handle these changes without recreating the activity.

6. Which of these classes is used to display large datasets efficiently in Android?
  • a) ListView
  • b) ScrollView
  • c) RecyclerView
  • d) WebView

Answer: c) RecyclerView
Explanation: RecyclerView is a more advanced and efficient version of ListView and is used to display large datasets by recycling item views that are no longer visible.

7. In Android, what is the purpose of the ViewGroup class?
  • a) To create new activities.
  • b) To handle lifecycle callbacks.
  • c) To hold and arrange child views.
  • d) To define the app’s theme.

Answer: c) To hold and arrange child views.

8. Which of the following is NOT a valid Android component?
  • a) Activity
  • b) Fragment
  • c) Service
  • d) LayoutManager

Answer: d) LayoutManager
Explanation: LayoutManager is used with RecyclerView to manage item layout, but it is not one of the core Android components like Activity, Fragment, or Service.

9. What is the default orientation of LinearLayout?
  • a) horizontal
  • b) vertical
  • c) grid
  • d) none

Answer: b) vertical

10. What is the purpose of the AsyncTask class in Android?
  • a) To perform background operations and publish results on the UI thread.
  • b) To handle touch events.
  • c) To manage database operations.
  • d) To provide networking utilities.

Answer: a) To perform background operations and publish results on the UI thread.

11. What does ANR stand for in Android?
  • a) Android Not Running
  • b) Application Not Responding
  • c) Activity Not Responding
  • d) Application Not Running

Answer: b) Application Not Responding

Explanation: ANR (Application Not Responding) occurs when an app is unresponsive for a certain period, prompting the user to close or wait for it to respond.

12. What is a Fragment in Android?
  • a) A background process that handles UI events.
  • b) A reusable portion of the user interface in an Activity.
  • c) A third-party library for networking.
  • d) An extension of the SQLite database.

Answer: b) A reusable portion of the user interface in an Activity.
Explanation: A Fragment represents a reusable part of an activity’s user interface, allowing dynamic UI changes during runtime.

13. Which method is used to start a new activity?

a) startActivity()
b) newActivity()
c) startNew()
d) launchActivity()

Answer: a) startActivity()
Explanation: The startActivity() method is used to launch a new activity using an Intent object.

14. In Android, what is the ViewModel class used for?
  • a) To store and manage UI-related data.
  • b) To create animations.
  • c) To display web content.
  • d) To define layouts.

Answer: a) To store and manage UI-related data.
Explanation: The ViewModel class is part of Android’s Architecture Components and is used to store and manage UI-related data while surviving configuration changes like screen rotations.

15. What does Context represent in Android?
  • a) The environment in which an app runs.
  • b) The layout configuration for views.
  • c) A type of user interface element.
  • d) The background thread pool.

Answer: a) The environment in which an app runs.
Explanation: Context is an interface to global information about an application’s environment, and it is used to access resources, start activities, and interact with app components.

16. Which class in Android is used to handle databases?
  • a) SQLiteHelper
  • b) SQLManager
  • c) SQLiteDatabase
  • d) SQLiteExecutor

Answer: c) SQLiteDatabase
Explanation: SQLiteDatabase is used to create, read, update, and delete operations (CRUD) on databases within an Android app.

17. What is the role of SharedPreferences in Android?
  • a) To save files to internal storage.
  • b) To store primitive data in key-value pairs.
  • c) To share data across applications.
  • d) To store user interface layouts.

Answer: b) To store primitive data in key-value pairs.
Explanation: SharedPreferences provides a way to save and retrieve primitive data (like booleans, floats, ints, and strings) in key-value pairs for app settings or user preferences.

18. Which component is used to broadcast messages to multiple apps?
  • a) Intent
  • b) BroadcastReceiver
  • c) Service
  • d) ContentProvider

Answer: b) BroadcastReceiver
Explanation: A BroadcastReceiver listens for system-wide broadcast announcements (such as battery low or network changes) and allows apps to respond to these broadcasts.

19. What is the purpose of Handler in Android?
  • a) To handle user inputs.
  • b) To schedule messages and runnables to be executed on a thread.
  • c) To manage app permissions.
  • d) To process HTTP requests.

Answer: b) To schedule messages and runnables to be executed on a thread.

20. What is the function of the Adapter in Android?
  • a) To manage app permissions.
  • b) To connect data with UI components like ListView and RecyclerView.
  • c) To handle background services.
  • d) To display web content.

Answer: b) To connect data with UI components like ListView and RecyclerView.

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