What should I first learn to be an android app developer and where can i learn it???

Answer 1

Luis Yerena If you are just starting new then it's always good to start learning the languages that would be used in android development first (either Java, Kotlin, C#)

(You can start learning the basics of any of the languages mentioned above from SoloLearn)
Happy Learning!

https://www.sololearn.com/Course/Java/?ref=app
https://www.sololearn.com/Course/CSharp/?ref=app
https://www.sololearn.com/learn/7792/?ref=app
https://www.sololearn.com/discuss/823823/?ref=app
https://www.sololearn.com/Discuss/2426987/?ref=app

Answer 2

start to learn from java or kotlin...