Add noise effect to a drawing

问题

I'm in the process of creating a custom view for my android application and would like to add a noise overlay over my drawings.

My drawings are pretty standard, arcs, bezier curves, etc.

What would be the way to go with creating a noise overlay over arbitrary shapes, drawn with canvas?

回答1:

Use a tileable transparent noise png and cover the canvas with it.

来源：https://stackoverflow.com/questions/6994289/add-noise-effect-to-a-drawing