Top Android Interview Questions and Answers Part 1, We are going to cover the most frequently asked questions with answers to enhance your knowledge and help you prepare for the interview.
Never mind Whether you are a beginner or experienced, this tutorial will provide questions and answers for all levels to prepare you for your interview.
So let’s start with questions and answers one by one.
What is Android?
Answer: Android is a mobile operating system developed by Google. It is based on the Linux kernel and designed primarily for touchscreen devices like smartphones and tablets.
What is an activity in Android?
Answer: An activity is a single screen in an Android application that contains a user interface. It represents a visual component that the user can interact with.
What is a service in Android?
Answer: A service is a component in Android that runs in the background without a user interface. It is used to perform long-running operations, such as playing music, downloading files, or handling network requests.
What is the difference between a fragment and an activity in Android?
Answer: An activity represents a single screen in an Android application, whereas a fragment is a reusable portion of a user interface that can be combined with other fragments to create an activity.
What is an intent in Android?
Answer: An intent is a message that can be used to communicate between components in an Android application, such as activities, services, and broadcast receivers.
What is an APK in Android?
Answer: An APK (Android Package) is a file format used to distribute and install Android applications. It contains all the components required to run an application on an Android device.
What is the Android manifest file?
Answer: The Android manifest file is an XML file that contains important information about an Android application, such as the package name, activities, services, permissions, and more.
What is ADB in Android?
Answer: ADB (Android Debug Bridge) is a command-line tool used to communicate with an Android device or emulator. It is used to install, debug, and test Android applications.
What is the difference between a ListView and a recyclerView in Android?
Answer: A list view is an older view type in Android that displays a list of items in a vertical scrolling view, whereas a recycler view is a newer and more flexible view type that can display items in a grid, staggered grid, or horizontal scrolling view.
What is the Android Support Library?
Answer: The Android Support Library is a set of libraries provided by Google that allows developers to use newer Android features on older versions of Android. It includes compatibility libraries, design libraries, and more.