Looking forward to joining as an Android Developer but failing in all interview attempts? Well, in that case, these interview questions mentioned below are no less than a blessing in disguise for job seekers.
Gone are the days when the knowledge of basics was enough to fetch a job, as now is the time when interviewers usually ask out-of-syllabus questions to confuse the job seeker. There’s a lot involved in being an Android developer; hence, a person must have to widen his reference material to crack the interview round.
While there’s no way to assure an absolute certainty of success, you can still improve your odds by brushing up on some of the commonly asked Android Interview questions before heading out. So, if you want to make a successful attempt, then fill your head with all frequently asked interview questions and avoid the risk of getting stumped in your next interview round.
To help you out, our team got connected with several leading Android interviewees and compiled a list of valuable questions that you might face during an interview. Scroll through the page and get yourself familiarized with these questions to boost your confidence and increase the likelihood of your success.
A Guide to the 9 Frequently Asked Interview Questions for Freshers
Here’s a quick rundown of the 9 FAQs for freshers. Check them out and get ready to face your Android interview with a little more confidence.
- What is Android?
Android is a mobile operating system developed by Google. It is launched for touchscreen mobile devices such as smartphones and tablets and is based on the latest version of some open-source software, including Linux Kernel.
- The android platform uses which database?
Android, by default, uses SQLite. It is a serverless and self-contained database that is embedded in all Android devices.
- What is intent, in terms of Android?
An intent is a message that is sent between components of an Android application. Intents can be used to launch activities, start services, or deliver broadcasts. Intents can also be used to pass data between applications.
- What are the different versions of Android?
Android has been released in several different versions since its initial release. Most recent version as of this writing is Android 9.0, also called, Android Pie, which was released in August 2018.
Older versions include Lollipop (5.0), KitKat (4.4), Jelly Bean (4.1-4.3), Ice Cream Sandwich (4.0), Honeycomb (3.0), Gingerbread (2.3), and Froyo (2.2).
- What things are included in Android application architecture?
It includes 4 different things, namely Android Framework, Android Applications, Linux Kernel, and Libraries.
- What is a live wallpaper?
A live wallpaper is a type of Android wallpaper that contains animations or video footage. Such wallpapers can be installed on Android devices running Android 2.1 or higher.
- What does an “Activity” mean in Android?
An activity is a single screen in an Android application. Activities can contain views such as text, images, and buttons, and can respond to user input via touch events. Activities can also be started by intents from other applications.
- What basic tools are used for creating an Android App?
Eclipse+ADT Plugin, SDK Tools, and JDK are mainly used to create an Android application.
- What is Android SDK?
Android SDK refers to the set of tools that Android developers use in order to create applications. Some of the tools included in Android SDK are Dalvik Debug Monitoring Services, Android Debug Bridge, Asset Packaging Tool, and Android Emulator.
A Guide to the 9 Android Interview Questions for Senior Developers
Are you an experienced Android developer and looking forward to switching your job? Well, in that case, be well-updated with the recent interview questions you might face in your next interview round. Below are mentioned the 9 commonly asked questions. Read them thoroughly and get them into your head.
- Enlist some storage options in Android.
The four best storage options available in Android are Internal Storage, SQLite database, External Storage, and Shared Preferences.
- What is Android Toast?
It is a pop-up box that gives feedback regarding an operation that users initiated, thus informing them of the current status of their query.
- Explain AAPT.
AAPT, also known as Android Asset Packaging Tool, gives developers the ability to deal with zip-compatible archives which further included content creation, viewing, and extraction.
- Which languages are commonly used for developing Android Apps?
Android developers can use several languages to create an Android app, such as Kotlin, Java, C#, Python, and Groovy. In addition, there are some IDEs to be used to create an Android app, such as Eclipse, IntelliJ, NetBeans, and Android Studio.
- What are the different types of Android apps?
Android apps can be divided into two categories: system apps and third-party apps. System apps are pre-installed on Android devices and include core applications such as the email client, calendar, web browser, and more. Third-party apps are developed by independent developers and can be downloaded from the Google Play store or other Android app markets.
- Is it possible to run a Bytecode written in Java on Android?
No, it’s not.
- What is Android Debug Bridge?
Abbreviated as ADB, it is a command-line tool included in the Android SDK and is used to communicate between the emulator instances.
- Can you explain the meaning of ANR?
ANR, or you can say it, Application Not Responding, is a kind of pop-up that initiates when the application experiences more lag time than intended.
- List some Android Exceptions.
The list of common Android exceptions include Surface.OutOfResourceException, WindowManage.BadTokenException, Inflate Exception, and SurfaceHolder,BadSurfaceTypeException.
That’s it, readers. We hope this article was of some help to you, whether you are a fresher or a senior developer. Preparing for an interview can be quite daunting but these questions will definitely help you brush up on your skills.
Do let us know in the comments below if there are any other topics that you would like us to cover and we’ll surely work over them. Till then, stay tuned with us for more such interview-related tips and guides.