Android App Development Tutorial for Beginners - Your First App

Let's build our first Android app - a tip calculator! This video assumes NO prior experience with Android, and by the end you'll have something an app you could publish. We'll cover how to create the user interface with XML, and how to code the logic using the Kotlin programming language. These are the fundamental building blocks of any modern Android app.

We'll use the ConstraintLayout for the layout and two event listeners for the app logic. After you enter a base amount and a tip percentage, the app will calculate the tip and total for you. We also implement a tip percentage animation and a footer to make our app more unique.

🎉 Thanks to our Champion and Sponsor supporters:
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[storyhearth]

Thanks to this tutorial I have crafted my first ever app on my own! Never worked with Koltin before so that was interesting for sure. I have had ideas of apps to create before but always struggled this was a great call to simplicity and to let the software handle the creating rather than knowing the documentation of every function known to man. Thank you so much.

[salthesadmanshark]

This video alone had more content and clarity than my 3 weeks' worth of uni lectures. Words cannot describe how thankful I am for this video.

[wahbakamaluddin]

For those who got error: Expecting ')' on 27:03 (the 'msg' text appears red), you actually don't need to type the word 'msg' it will automatically appears before the statement. For more explanation, you can go to 31:16 .

[gholamsoori]

Deeply appreciated!. It is really a perfect tutorial for the kotlin's beginners. I have really enjoyed it.

[jonathanvillatorocordoba]

Thank you! This was an amazing tutorial, this is my very first kotlin Android App!

[georgiasoftworkssupport]

good tutorial. I followed along doing this in java with no problems. It does a good job introducing to android apps as well as starting to use android studio.

[EnglishRain]

Rahul is my go-to teacher for Kothin + Android, thank you!

[LadyMcN]

It took me a lot longer than I'd like to admit, but I finished creating this app. I chose some different colors for the theme. Now I'm going to try building this out a little bit. Thank you for your work on this tutorial!

[blackaamoor]

This tutorial is full of insights and information both for kotlin as a language and android development, i learnt so much and will definitely recommend to other beginners like me. thanks

[dluca]

I loved this tutorial!
Perfect explanation, simple concept, and great for dipping the toes...
Android studio is complicated AF
thanks a lot!

[davidalex]

I really appreciate the work you all put in order for people to learn

[richiembatiah]

Thanks so much for the amazing work.🙏💯 please publish more videos on more complex and advanced project with the exact amount of detail including features such as navigation, working with local storage, databases, maps, QR codes, verification codes, in app calls or messages and navbar toggle buttons as well. Would greatly appreciate and contribute to your growth as well.

[silentedict]

Thank you! Great tutorial, easy to follow and a great intro to the world of app development.

[kristinaloncar]

A great intro into Kotlin app making. Thank you!

[expeknow]

I have learnt soo many things from this course! Please complete the course and by the end, you'll feel like you are completely a new person 💞 just trust the process!

[greaterthanstefan]

Extrememly helpful, thank you for teaching me the basics of Android Studio programming!

[selvag]

Thank you. This is the right tutorial for beginners.

[komalac.n.]

Great Tutorial for beginners with clear explanation. Very helpful. Thanks

[ezekielthemack]

Thanks very much for your help with this tutorial Rahul. Much appreciated.

[poppopwalker]

Learning a lot from this, Thanks Rahul! many blessings!