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What is Android development?

Android development is a form of software engineering dedicated specifically to creating applications for devices that run on the Android platform. Several types of programming languages may be involved in Android development, and there are four main components of an Android app that allows them to function.

Which language is used in Android development?
Answer Part 1

The four components that make up an Android app are activities, services, content providers and broadcast receivers.

Answer Part 2

Java is the official language used in Android development, with lines of code compiled on Dalvik Virtual Machines. Most Android APIs are meant to work with Java, which is also the Android Studio’s natural coding language.

Many other programming languages can be used by Android developers, however. React Native app development has grown to become among the most popular ways of creating applications, allowing developers to create apps for both iOS and Android using JavaScript and commonly used UI frameworks to accelerate development. Additionally, C# combines the basics of C++ and Java to provide a high-level but still useful coding language that enables users new to coding to begin developing Android apps.

C/C++, Kotlin, BASIC and Lua can also be used in Android development.

What are the four components of an Android app?
Answer Part 1

The four components that make up an Android app are activities, services, content providers and broadcast receivers.

Answer Part 2

Activities 

The single-screen user interface that acts as an entry point for the user to interact with an app is called the activity. Independent activities work together to form a cohesive user experience and are responsible for facilitating key interactions between the system and the app, such as keeping track of what is on the screen, to ensure the system continues running the process hosting the activity. This prioritizes previously used processes so the user can return to them, allowing apps to restore previous states after being killed and to implement user flows between each other.

Services

Services act as a general-purpose entry point for keeping an app running in the background while another application is in use or the user is not actively navigating the device. An example of a service is music playing in the background while a user is in another app. There are two types of services: 

  • Started services, which keep an app running in the background until its process is completed
  • Bound services, which keep running because another app or the system is making use of it to function

Content Providers 

A content provider manages shared sets of data that can be stored in the file system and later accessed by an app. Content providers allow approved apps to query or modify data. An example would be a content provider that manages a user’s contact information and allows apps with the proper permissions to query the content provider and read and write information about a particular contact.

Broadcast Receivers

A broadcast receiver allows the system to deliver events to an app outside of its regular user flow, such as system-wide broadcast announcements. An example of this is an app scheduling an alarm that notifies the user of an upcoming event. The app can deliver that alarm to the broadcast receiver, which allows it to close until the alarm goes off. Broadcasts often come from the system itself, alerting users to things like shutdowns, low battery levels or when a picture has been taken.

How are Android apps developed?
Answer Part 1

Android apps are developed using Android Studio.

Answer Part 2

Android Studio is the official, unified, integrated development environment (IDE) for building apps designed to run on Android devices. The platform offers app developers structured code modules to divide projects into units of functionality for independent building, testing and debugging. 

The Android Studio environment is based on Intellij IDEA to facilitate fast turnarounds and a streamlined workflow, capable of intelligent code editing with advanced code completion, refactoring and code analysis, a feature-rich emulator, code templates, a layout editor and more.

 

Courses

Android Development Courses to Expand Your Career

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Android development skills have never been more in demand, and Udemy’s courses have what you need to know to grow your career.

Topic:

Improve your career options by learning Android app Development. Master Android Studio and build your first app today

 

What you'll learn:

  • You’re taught step by…

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Learn Android O App Development using Java & Kotlin - build real apps including Super Mario Run, Whatsapp and Instagram!

 

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Learn Android App Development with Android 7 Nougat by building real apps including Uber, Whatsapp and Instagram!

 

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Certifications

Android Development Certifications + Programs

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Give your resume a well-earned boost with an Android Development Certification from Udacity.

Built in collaboration with Google, this program will prepare you to become a professional Android developer and allow you to create a diverse portfolio of projects to show employers. By the end of this program, you will be able to use Android development platform best-practices, Android Studio, Android Jetpack, and Kotlin to build your own apps for the world’s most-used mobile platform.

Intermediate
4 months
10 hours

We built this curriculum with Google for aspiring Android developers who are new to programming to ensure that you get the real-world skills you need to know how to build and accelerate your journey towards becoming a professional Android Developer.

Beginner
3 months
10 hours
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