So you're interviewed for an Android developer job? You have chosen the best clothes, your resume and other reference materials are neatly assembled and ready, and you feel well-rested.
Unfortunately, you begin to realize that you may be asked a question that you do not have an answer to. After all, it takes a lot to be an Android developer. Are you sure you want to risk getting stumped when answering simple Android developer interview questions?
Or maybe you are also hiring Android developers and don't know how to assess a candidate's knowledge during an interview?
This free list will help you learn what skills to assess and ask Android developers in interviews.
Here we have:
Plus, you can use these templates as android team lead interview questions.
This approach shed light on the candidate's attitude towards Android programming!
Android is an open-source Linux-based operating system commonly used on mobile devices such as smartphones and tablets. It is a kernel-based system that gives developers the ability to develop and deploy simple and/or advanced applications.
The current Android version is 11.0, released in 2020.
SQLite, a standalone open-source serverless database, is built into Android by default.
The android architecture consists of:
While you CAN change that, the real question must be, "SHOULD you"? Changing the name of an application may impair some of its functionality.
The four main benefits of Android are:
It is a set of tools that Android developers use to develop or write applications. It has a graphical user interface that mimics a portable Android environment, making it easier for devs to create, test, and debug their code.
Because emulators function like real handheld devices, developers have a nice dedicated sandbox to create safely, edit, test, and debug new applications to see how they work on a real device without risking the real device.
Android mainly uses Java and Kotlin but also supports C / C ++, which will run faster when used with the Android SDK.
It is a set of APIs that allows developers to build applications and consists of:
Be that as it may, it is the intent to perform an action, a message that is passed between components. Intents request actions from another component, such as sending an email, opening a web page, or launching a given action. There are two types:
This is a broadcast using the send sticky broadcast () method. The intent remains after the broadcast, allowing others to collect data from it.
These are the parts of the mobile application that the user sees and interacts with. It is a graphical user interface (GUI) representing a single Android screen.
Content providers exchange information between different Android applications. They allow users to access data in the application. Examples include contact information, images, video, and audio.
In this case, a toast is a pop-up window (hence the word) giving feedback on a user-initiated operation, informing the user about the current status of said operation. For example, when a smartphone user sends a message to a friend, a toast is displayed with the words “send a message.”
Mobile testing is performed on the mobile device itself, in particular in device functions such as Contacts, SMS, browsers, and the calling function. Mobile application testing samples the capabilities and functionality of applications downloaded to a mobile device.
Packages are used to transfer the required data to subfolders.
Use the findViewById keyword.
The weaknesses of Android stem from one of its strengths, namely that it is available everywhere and can run on a wide variety of devices.
No, it can’t.
It is an abbreviation for Android Asset Packaging Tool. This tool gives developers the ability to work with zip-compatible archives, including viewing, creating, and extracting content.
This acronym stands for Android Debug Bridge (a tool included with the SDK). It is a command-line tool used to exchange data between emulator instances.
It is short for Android Packaging Kit. Each file in the Android packaging key is compressed into one file - the APK.
It is an acronym for Application Not Responding, a pop-up or notification that is triggered when an application experiences a delay for the user due to too many functions running concurrently.
They are placed as XML files in the layout folder.
Inflate the exception
Six main elements:
Four dialog boxes:
When an application crashes frequently, these are the best ways to fix it:
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