06-03-2018, 04:36 AM
It's definitely something I want to do, and I've tried to explore how to do it, but I haven't found anything that has worked so far. I've tried changing the way the painting of the highlighter works on Android by utilizing different PorderDuff Xfermode values, but no matter what I try, the drawing either goes on top of the image or behind it. So that approach doesn't seem to be sufficient unless I'm doing something wrong. That leads me to believe I have to modify the pixels behind on the content on the page myself instead of relying on a blending/multiplying technique. Having to modify the pixel values of the bitmap representing the page is not the simplest thing when dealing with a freeform drawing, which is why I haven't done something about this yet.
Mike
Mike