Best source for learning android development using android studio?

Hello! I'm a software engineer and entrepreneur. I recently left xamarin because of the enormous amount of issues that i came across with it, and would like to develop my app with just standard native android. I have some minor experience in Java, and I used android studio in the past developing libgdx games, although this was a few years ago.

Where would be the best place to get a full starters course/tutorial? I'd like to include everything from android studio, android api's to the publishing etc. I noticed udemy has a course for this but it was released in 2015. Would that still be accurate to use?

I'd greatly appreciate any response! I look forward to jump into the [Android Development Company][1] and community !