How can we make android apps

Answer 1

thanks

Answer 2

So, first learn Kotlin or Java, whichever you prefer. Make sure that you feel comfortable using that language. Now, install android studio and try to understand the basics of app development with Kotlin/Java from online resources. Now you can also learn some XML, even though that's not really that important as AS has a built-in designer. Once your app is done u can install an emulator or build the apk.
For submitting to the play store you need to generate a signed apk, that is documented on the android developers page.