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Android App Development with Kotlin | Intermediate Android (Udemy.com)

Kotlin Android | Android App Development with Firebase, Android Studio, android development, app development projects

Created by: Oak Academy

Last updated September 2026

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What you will learn

  • Due to its open-source nature, working with the Android platform necessitates constantly learning about the Android platform. My android development course.
  • The Android platform is increasingly popular with developers, and a dominant force in the global smartphone market.
  • Android development is a software creation process that focuses on applications, better known as apps, that are compatible with devices running the Android.
  • Android development is a valuable skill that can help you enhance your career. Android development skills are in-demand around the world with various.
  • The tools you will use for Android development depend on how you would like to focus your career as an Android developer.
  • If you are building new Android apps, Kotlin is better suited because it is the recommended programming language for Android.

How it compares

Against the other 166 rated Udemy courses in Android Development on CourseDuck:

  • Rating4.6 out of 5higher than 82% of them
  • Reviews111#122 of 167 by number of reviews
  • Length20.9 hourslonger than 72% of them
  • Last updatedSeptember 2026more recently than 88% of them

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Course Description

Hi there,

Welcome to "Android App Development with Kotlin | Intermediate Android" course

Kotlin Android | Android App Development with Firebase, Android Studio, android development, app development projects

Due to its open-source nature, working with the Android platform necessitates constantly learning about the Android platform My android development course on Oak Academy keeps you ahead of this learning curve, with hands-on lectures on Android operating systems and more Kotlin, android app development, android, android kotlin, android app development kotlin, kotlin android, android development, android developer, android app, app development, android development with kotlin, android app development with kotlin, android development kotlin

The Android platform is increasingly popular with developers and a dominant force in the global smartphone market As more businesses develop mobile apps for customer engagement, Android development skills are likely to stay in high demand

  • Do you want to improve your career options by learning android?

  • Do you want to learn android app development from Scratch?

  • Do you want to learn android development from Scratch?

  • Do you want to be an android studio master?

  • Do you want to build your first app?

If your answer is “yes”, you are at the right place!

Kotlin is popular for both Android developers and Java developers Whether you want to learn Kotlin in order to build your next Android app, or simply need an introduction to the language, Udemy has a top-rated course to help you achieve your goals

Kotlin is a very new and up-to-date programming language Kotlin android is accepted by Google as the official language for Android development Therefore, it is a language that everyone who wants to be an android developer should know In this course, we teach Kotlin programming language from beginner to advanced level, considering the importance of Kotlin

Android is the most used operating system on the planet In fact, it’s almost omnipresent in the mobile ecosystem With millions of Android devices in use, and an incredible 500,000+ new Android devices activated daily, the popularity of Android applications is increasing exponentially - and with it, the demand for Android application developers is soaring
I really like the approach of this course about the Android app The instructor focuses on the Android SDK to teach you how to build beautiful applications for smartphones As the course title indicates, it is the complete guide to learn android application development
The Android platform is increasingly popular with developers and a dominant force in the global smartphone market As more businesses develop mobile apps for customer engagement, Android development skills are likely to stay in high demand

Android development is a software creation process that focuses on applications, better known as apps, that are compatible with devices running the Android operating system (OS) Because Android is an open-source project, developers have easy access to the Android software development kit (SDK) Many use this kit in conjunction with Kotlin, Java, and C++ programming languages to make their apps The Android SDK tools compile your code along with any data and resource files into an APK, or Android package, which is an archive file that uses an apk suffix One APK file contains all Android app contents used by devices to install your app When the app is complete and ready for release, Android developers can upload their apps to the Google Play Store for users to download for android game development


Chances are, you’ve heard of Android many times, and Do u want to be an android developer? You may even have an Android smartphone, app android tablet, watch, or TV But what is Android? Android is a mobile operating system (OS) that was designed and developed by Google The Android OS is Linux kernel-based So, what’s “Linux kernel,” and why is that such an essential detail about Android Development?

In a nutshell, Linux kernel is an OS, well, sort of — it’s partially an OS More like a small part of an OS, but an important one The Linux kernel is the layer responsible for interfacing with the device’s hardware and managing the device’s CPU and memory The Android OS is Linux kernel-based because the Linux kernel allows for a more open and customizable OS, which is what Android promotes — any device manufacturer can take the Android OS and make it their own

Imagine how bad it would be if, say, resources from application A read information from another application’s files and vice versa with no constraints — malicious, insecure interactions would take hold and bring the whole system to a halt

The sharing of information (data) between applications is an essential part of building inter-connected applications, so the android OS requires developers to set permissions that users must grant to do certain things For example, for an application to access the phone’s File System (internal files), the user must give access first This means the app developer must let the user know, in advance, what the app they are installing wants to access For example, when a user installs an android app that needs to access the photo gallery or the phone’s camera, the app will ask for permission to access the gallery or the camera The app user has the power to either grant or deny permission App permissions in Android ensure the user’s protection from malware and software viruses

This course is built to help beginners to start making applications in android studio and android application development or android app design

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Instructor Details

Oak Academy

Who is Oak Academy?

Oak Academy is a London-based online technology education company. We publish practical, structured video courses in cybersecurity, IT certification, artificial intelligence, data science, software development, and mobile technologies. More than 470,000+ learners have enrolled in Oak Academy courses on Udemy, leaving over 67,000+ reviews across our catalogue. Our courses are produced in English, Portuguese, and several other languages.

What does Oak Academy teach?

Our catalogue is organized around the skills employers actually hire for:

Cybersecurity and ethical hacking — penetration testing, network and web application security, Nmap, Metasploit, Wireshark, Kali Linux, and hands-on practice environments such as TryHackMe and Hack The Box.

IT certification prep — CompTIA A+, Network+, Security+, and newer tracks including CompTIA DataAI, mapped directly to current exam objectives.

Artificial intelligence and data science — Python, NumPy, Pandas, Matplotlib, machine learning with Scikit-learn, R programming, and end-to-end data projects.

Software and mobile development — Python, Java, JavaScript, Flutter and Dart, Android, iOS, and full-stack web development.

How are Oak Academy courses designed?

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Reviews

4.6

111 ratings on Udemy

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By Mike H on 7/19/2025

In my opinion, this is a very weird course. I'm an experienced developer who has completed many Udemy courses, but I just can't get into this one. Firstly, nothing in the first several videos is very helpful. It's obvious to me that the instructor (whoever they are) hired a professional VO (voiceover) actor to read all the course dialogue. The problem is that the written material is difficult to follow despite the expert vocalizations employed by the actor. Maybe this is because there is a "knowledge disconnect" between the content and the "instructor" who likely doesn't know how to develop apps. I think the emphases are just incorrect. While the VO actor is putting an awful lot of effort into sounding interesting, there's just too much performance-drama and too many vocal "stops" and "pauses" which quickly become annoying. I know the method works for reading books, and the VO actor has a great voice, so while I'm sure he's probably successful reading audiobooks on Kindle, his method just does not work very well here, in my opinion. I'd rather hear the original instructor, even though their English might be not up to the English-speaking standards they hope for. I should add that I do appreciate their efforts in hiring a voice actor in an attempt to make it a more engaging point. To the real instructor: If you're willing to hire a VO actor, please consider also hiring a really good Technical Writer. The written/vocal content needs to be MUCH CLEARER. As a result of that, you'll be able to cut down the length of the dialog and just get to the parts that we are here for!! I don't care that there's 20 hours of lessons. I want to GET TO THE POINT. I also noticed that the images of Android Studio towards the beginning of the course are very old. Android Studio doesn't look like that anymore. I strongly suggest just creating a new course, rather than trying to build on the bones of an old course, which I'm guessing is what's happening here. I wish you the best of luck (I really do) and hope to take one of your new courses in the future, but I can't get through this one.

By Emrah Kırmızı on 10/22/2023

Thank you for your interest, interest and information. You are in the right place :)

By Aaron Serdant on 12/19/2022

this course is very good if you want to develop android app programming

By Angelina Foil on 12/16/2022

I really liked the course. The teacher's tone is very good. I watched it in one go.

By Akif ÇAKIR on 12/16/2022

The course is pretty well prepared. I followed all the lessons with interest. Thank you.

By Jack Seely Bones on 12/16/2022

A very good tutorial to learn Android App Development using Kotlin. Audio and videos are of high quality. The explanation is good.

By Kadir Yılmaz on 9/29/2022

Since the language of the course is English, I had concerns about pronunciation and fluency, but the course is very fluent.

By Shahram Vazirnezami on 2/2/2022

It seems this course is an excerpt from another course. It touches some subjects briefly, nevertheless it contains some useful information that can get you going on your project

By Furkan on 11/11/2021

Very well explained. Great course for intermediate level kotlin learners

By Fatih Akkaya on 11/11/2021

If you have developed an application using Kotlin, you can increase your skills with this couse

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Read all 111 reviews on Udemy

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Overall Score : 92 / 100