How long does it takes to learn Android Studio?

It will depend upon how much time you give to it and with how much concentration. If you are giving 4–5 hours daily to it then it will take approximately 1–1.5 months for you to learn android studio. You can also learn Java, C++ and xml if you want to create an application or software. For creating interactive apps or games, it takes months of practice and hard work to become an expert.

Creating an app will require you to integrate graphics and certain commands that will act between user and the device. Understanding these concepts and implementing them in your software will take additional half month.

Testing of software you make and removing all potential bugs from it will require more deeper understanding of the android studio but it can be done in much lesser time(in 2–3 days) once you understands the concepts completely.

I hope that I will be using one of your apps very soon.