How to work with fonts and icons in java android development?

Question

Android

How to work with fonts and icons in java android development?
There are a lot of options, I suppose, but which are the best and optimal?
With fonts, the work is this - android:fontFamily="font face", and if you need a custom font, then download the font and create a font folder in res, where you throw the downloaded fonts and use it there. (If there are other variants, tell me)
And with icons how ? After all, you can make ordinary images (or they will weigh a lot for icons) or use font-awesome, or are there other options that are more convenient and optimal?

Answer 1

9-patch png won't work?