How to make android apps ?

Answer 1

Next time please try using the search bar:
https://www.sololearn.com/post/10362/?ref=app
https://www.sololearn.com/discuss/1512731/?ref=app
https://www.sololearn.com/discuss/1027268/?ref=app
https://www.sololearn.com/discuss/739114/?ref=app
https://www.sololearn.com/discuss/62684/?ref=app
https://www.sololearn.com/discuss/2511494/?ref=app
https://www.sololearn.com/discuss/1473080/?ref=app
https://www.sololearn.com/discuss/1586820/?ref=app
https://www.sololearn.com/discuss/2024989/?ref=app
https://www.sololearn.com/discuss/451938/?ref=app
https://www.sololearn.com/discuss/1822300/?ref=app
https://www.sololearn.com/discuss/140145/?ref=app
https://www.sololearn.com/discuss/2302781/?ref=app
https://www.sololearn.com/discuss/311541/?ref=app

Answer 2

Use Android Studio or MIT App Inventor (free & block coding)!