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

We 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.

Learn Kotlin in 12 minutes: https://youtu.be/iYrgWO2oibY
Learn how to publish your app: https://www.youtube.com/watch?vrMzQ2vM1S6c
Download this app on Google Play: https://play.google.com/store/apps/details?idcom.rkpandey.tipcalculator

Follow Rahul on YouTube: https://www.youtube.com/rpandey1234
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