Does ALine support drawing lines like this?

No, that kind of visual customization is best achieved with other systems.

I want to draw the curve-line like the picture’s in 2D game. but with Aline I can only draw straight-line.
I do see that the Aline can draw circle, but have no idea how to draw the curve like it.
let me know if someday you came across a function to draw it.

If it’s just a curve, you might be interested in CatmullRom - ALINE or Bezier - ALINE