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It’s not easy to become an Android developer. The need for skilled Android developers is growing significantly. To succeed in your final interview for various Android developer jobs, you must adequately prepare for the Android interview questions. It also contains interview questions from Android Studio, which you should thoroughly prepare for before your final interview.

Even while you won’t always be successful, you may improve your chances by learning some of the most crucial Android questions asked in interview for mobile application development. As a result, a lot of tech-savvy individuals are attempting to enter this field. Many MNCs and some small businesses pose several challenging Android developer Interview Questions.

Keep reading and exploring to get the best Android interview questions for senior developer so that you can prepare for your interview like a pro.

Who is an Android Developer?

Developing a mobile application is a more complex task than making an internet application. The operating system also influences the development of Android apps. For example, iOS and Android mobile apps are very different. There are several primary types of mobile applications. Among the primary tools for Android programming are Python Android Studio, the Android Software Development Kit (SDK), Microsoft Windows, the Android SDK for Mac, and the Android SDK for Linux.

Using the languages and capabilities that each operating system offers, developers create native Android apps that operate on certain platforms, such as iOS or Android. The operating system’s available languages and tools can be used to construct these applications. For example, iOS uses Objective-C and Xcode, whereas Android uses Eclipse and Java.

Top 30 Android Developer Jobs Interview Questions And Answers

Now we will discuss the top 30 Android questions asked in interview. You must prepare them to secure a job as an Android developer. This is because these Android developer Interview Questions are so popular that every interviewer must ask you for different Android developer jobs interviews.

Top Basic Level Android Developer Interview Questions

Here are some basic-level Android Interview Questions in 2025:

What Does The Term “Android” Mean To You, And What Is The Most Recent Version Of Android?

The Android operating system (OS) was principally designed for mobile devices. It is created by Google and is built on open-source software, including the Linux kernel. Mobile touchscreen devices like tablets and smartphones use it. These days, however, they are found in Chromebooks, Android Auto automobiles, TVs, watches, and cameras, among other devices.

The first stable release date of Android 15 (API level 35), the most recent version of the operating system, is October 15, 2024. June 2025 is the stated release date for the next Android 16 (API level 26) version. See our blog for the Android version list so that you can better understand the API levels.

Which Database Does The Android Platform Use?

By default, Android comes with SQLite, an open-source, serverless database that is independent.

What is The Architecture Of An Android Application?

The components of the Android architecture are:

• Framework for Android
• Applications for Android
• The kernel of Linux
• Libraries

Also Read: Android Developer VS Web Developer: Which is the Best Choice to Make More Money

What is an Android Activity?

One essential part of Android apps is the Activity class. Every application has at least one Activity class, regardless of how little it is (both in terms of code and scalability). The Android operating system starts the code in an Activity instance by calling particular callback methods that correspond to particular stages of its lifecycle, in contrast to other programming languages, where the main() function is the entry point for that program or application to begin its execution. Therefore, it is possible to say that an activity serves as the starting point for user interaction.

Which Four Activity States Are Essential?

It is one of the best Android interview questions for different Android developer jobs. Here’s how you can answer it:

The four Android states are as follows:

• Active: The activity is running in the foreground at the top of the stack.
• Paused: The activity remains displayed but is in the background and unable to accept user input events.
• Stopped: Because the action is invisible, it is suspended and is covered up or concealed by another activity.
• Destroyed: The process of the action has been stopped, finished, or ended.

What’s a Content Provider?

Information is sent between various Android applications by content sources. They let consumers access information inside an application. Contact details, pictures, videos, and music are a few examples.

Describe Android Toast

In this instance, toast is a pop-up box—thus the name—that provides feedback on an action the user has taken and updates the user on the operation’s current state. For example, a toast stating “sending message” appears when a mobile device user sends a message to a buddy.

What Distinguishes Mobile Application Testing From Mobile Testing?

The mobile device itself utilizes mobile testing, with a focus on functionality like contacts, SMS, web browsers, and calling capabilities. The features and capabilities of the apps that are already available on a mobile device are being tested through mobile application testing.

What is The DVM, Or Dalvik Virtual Machine?

A virtual machine called DVM is used to run Android apps. To make the application’s source files executable on the DVM, the Java bytecode (.class file) produced by the Java compiler is transformed into Dalvik bytecode. The DVM design philosophy is to optimize itself so that it may load quickly and function flawlessly even on devices with minimal memory or power, because Android devices have a fixed processing capability, memory, and battery life. When operating several instances on a single device, this virtual machine is incredibly efficient. For different Android developer jobs, you must prepare for this interview.

DVM was superseded by Android Runtime (ART) as the default runtime environment with the introduction of Android 5.0 (Lollipop). By compiling programs in advance (AOT) as opposed to just-in-time (JIT) compilation, like DVM, ART enhances performance.

What Does The Term “Services” Mean?

A service is an autonomous Android component that operates in the background. There is no user interface offered by it.

The user can continue working on other apps even when the services are operating in the background. Moreover, the majority of the time, consumers are unaware of the background-running services. Because of these services, the system can terminate a process without interfering with the user’s current task.

Top Intermediate Level Android Developer Interview Questions

After getting some basic Android questions in interview, here are some intermediate-level Android Interview Questions in 2025:

What Do You Mean By APK Format?

It’s also among the most crucial Android jobs interview questions you need to be ready for. The small file format used for distributing and installing middleware and application software on Google’s Android operating system is called an APK file, or Android application package. The compressed program code, resource files, documents, and other files are all included in the file, which has the .apk extension.

What is The Activity Life Cycle Of Android?

It is the best Android developer jobs interview question in 2025. The user alternates between displays and apps, which happen at various phases of the life cycle. Consequently, there are seven different ways in Android.app activity lifecycle.class exercise, such as:

• onCreate(): This is where the activity begins.
• onStart(): As soon as the user can see the action, this callback function begins to execute.
• onResume(): When the activity is in the foreground, the user can interact with it.
• onPause(): Another activity may conceal a piece of the action. More semi-transparent foreground motion is present.
• onStop(): The activity is not visible or accessible to the user.
• onDestroy(): This method removes the activity from memory and expunges it.

What is an Adapter For Android?

An adapter in Android acts as a conduit between an AdapterView and the data that underlies the view. The data is transmitted to the adapter view and is stored on the adapter. The view then displays the data in a variety of ways, including a grid view, list view, spinner, etc., using the data from the adapter view.

Also Read: IOS Developer Jobs: Top Interview Questions You Need to Know

What Are Android Broadcast Receivers?

The term “broadcast” refers to system-wide events or messages that can happen when a device boots up, receives a message, receives incoming calls, enters airplane mode, etc. We may register for system and application events via broadcast receivers, and the legitimate receivers get notification when such events take place.

Broadcast receiver types include:

• Static Receivers: These Receivers are available in the manifest file and continue to function even after you close the application. Moreover, you can use it for broadcasts tailored to a system.
• Dynamic Receivers: These receivers are code-declared and only function while the application is minimized or running. Moreover, you can use it for broadcasts to an application.

You must prepare for this question for different Android developer jobs in 2025.

What Methods Of Troubleshooting Can You Use If An Application Keeps Crashing?

You can use the methods listed below if an Android application keeps crashing:

• Verify Compatibility: An application cannot be tested over many kinds of hardware and operating systems. Moreover, a program may be incompatible with your operating system.
• Memory Control: On one mobile device, certain applications function well, but on other devices, they may crash. Here, CPU speed, memory management, and computing power are taken into account. You can free up memory space for the program to run correctly because mobile devices have a limited quantity of memory.

What is a Fragment in Android?

A reusable user interface (UI) component that depicts a section of the user interface (UI) inside an activity is called a fragment. The Android activity’s modular portion is particularly useful for developing user interface designs that are adaptable and automatically change according to the screen size of the device. Three primary categories of fragments exist:

• Static Fragment: XML layout declared.
• Dynamic Fragment: Defined at runtime with FragmentManager.
• Dialog Fragment: DialogFragment is used for pop-up dialogs.

A Program On Android Keeps Crashing. How Do You Fix The Problem

These are the best methods for fixing applications that crash frequently:

• A memory space problem might be the cause. Moreover, verify that there is adequate memory.
• Using “settings” in Application Manager, clear the cache memory to remove the app’s data.
• You might need to adjust memory management since different computers run different software.

It could be a compatibility issue, which can be avoided by testing the mobile application on as many of your devices as you can in advance. Let’s move to another Android developer jobs interview question.

How Important is it to set up Permissions While Developing Apps?

Only authorized users may access the data and code after the permissions for cross platform app development have been established.

Moreover, there is a danger that the code will be compromised, leading to the leaking of defects, if it is maintained unrestricted or accessible to everybody.

In Android, What Is An Adapter?

An adapter is an essential component in Android that connects an AdapterView to the data it shows. In essence, it manages the data and makes it easier to send to the AdapterView by acting as a mediator. Then AdapterView extracts the data and shows it in a variety of ways, including grid views, list views, spinners, and more.

In summary, an adapter is essential for facilitating the smooth communication between the user interface components and the underlying data, which guarantees a dynamic and fluid information display in Android apps.

Describe ADB

ADB is an acronym of the Android Debug Bridge, a utility involved in the SDK. The emulator instances can communicate with one another using this command-line program.

Top Expert Level Android Interview Questions For Senior Developer

After getting some basic and intermediate Android questions asked in interview, here are some Android interview questions for senior developer in 2025:

What Is ORM, And How Is The Android Room Persistence Library Different From SQLite?

Room and other ORM tools provide a clean, native-language API by abstracting away the underlying database complexity. Unlike SQLite, Room in Android automatically manages migrations and compiles SQL validation.

What is The Principle Of Dependency Inversion? How Does Android Implement It?

According to dependency inversion, you can increase flexibility by loose coupling by relying on abstractions rather than specific classes. Android makes use of dependency injection, abstract classes, and interfaces. Let’s discuss another Android developer jobs interview question.

Also Read: Windows Server Interview Questions: 30+ Questions With Answer

Describe The Recommended Strategies For Integrating REST APIs for The Best Android Performance.

Request queues, background dispatchers like Kotlin coroutines, and offloading network connections via AsyncTask are all examples of best practices for REST API requests. It also helps to parse answers asynchronously.

What is Android’s RecyclerView and How Does It Operate?

In Android Studio, RecyclerView, a flexible ViewGroup, has been added as an enhancement to GridView and ListView. Moreover, by overcoming the shortcomings of its predecessors and improving the effectiveness of showing massive datasets, it functions as a potent tool for creating lists with adjustable XML layouts.

Important Features:

• Customizable XML Layouts: RecyclerView gives developers a great deal of customization choices by enabling them to construct lists with XML layouts for every item.
• Efficiency Gains: When compared to conventional ListViews and GridViews, it greatly increases the efficiency of displaying lists.
• Perspective Recycling: RecyclerView’s ability to recycle views that have become hidden from the user’s perspective is one of its primary features.

What Are The Main Advantages Of The Android Jetpack?

Jetpack is only a collection of software elements, libraries, tools, and instructions to assist in creating excellent Android applications. Moreover, in 2018, Google released Android Jetpack.

Principal Advantages of Android Jetpack include:

• It creates a suggested app architecture using its constituent parts.
• Get rid of boilerplate code.
• Make complicated tasks simpler.
• As libraries such as support are easier to access from the Android API endpoint and have been repackaged to the androidx.* package, provide backward compatibility.
• Built-in Kotlin Integration productivity feature

Describe How To Improve A Complex Android Application’s Performance, Particularly When Handling Resource-Intensive Tasks And Big Datasets.

Respond to this senior Android developer jobs interview question by indicating that you use effective coding techniques to enhance the performance of intricate Android applications that manage resource-intensive operations and huge datasets.

In this setting, using caching methods, background threading, and minimal useless UI updates also helps. You can greatly increase the performance by using appropriate data structures and optimizing database queries.

How Do You Ensure Code Quality And Modularization While Contributing To The Architectural Design Of An Android Application That Is Scalable And Maintainable?

You emphasize creating scalable and maintainable apps to support architectural designs in your response to this senior Android developer interview question. Additionally, mention that you place a high value on modularization, clean coding, and adhering to architectural principles like MVVM.

Describe How You Use The Principles Of Object-Oriented Design In Your Android Projects.

You can talk about how you build systems with loose coupling and good cohesiveness in this senior Android developer interview question.

You may also say that you utilize abstract classes and interfaces to keep things flexible, follow SOLID principles, and make sure that every class performs a single task.

What Role Does The .Dex File Play?

DVM compiles Android apps into Dalvik executable files (.dex files), which are converted into .apk files on the device. The .dex format has optimization for efficient storage and memory-mappable executions. Moreover, .dex files become available by translating and compiling Java programs.

How Can An Android Application Store Data?

SharedPreferences, SQLite databases, or internal or external file storage can all be used to preserve data in an Android app. Moreover, the intricacy and specifications of storing the data determine this.

Conclusion

The finest and most often asked questions in each Android developer jobs interview are those listed above. Moreover, this brings an end to our blog’s examination of Android interview questions. However, our blog on Android developer interview questions taught you about the most sought-after skill sets that companies look for in an Android developer.

With this list of interview questions for mobile application development, you will surely ace your job interview. We hope you have a successful interview! Comment below if you are finding any difficulties in preparing for Android interview topics in 2025.

FAQs (Frequently Asked Questions)

What Does An Android Developer Do?

For smartphones and tablets that mostly run the Android operating system, an Android developer jobs includes creating, constructing, testing, and maintaining mobile apps.

How Do I Turn On Android Developer?

To activate Android Developer Options, navigate to Settings on your device, choose About phone (or About tablet), locate the Build number option, and quickly touch it seven times.

What Skills Do Android Developers Need?

Strong Kotlin or Java skills, experience with the Android Studio IDE, and understanding of Android SDK concepts—such as Jetpack Compose, MVVM design, and database and Firebase data management—are prerequisites for Android developers.

Who is The Developer Of Android OS?

Andy Rubin and others formed the firm Android Inc., which was responsible for the original development of the Android OS.