Something I've done is create a custom view where you implement the onDraw function. Then in the onDraw function you can make a call like
canvas.clipRect(clippedRect, Region.Op.DIFFERENCE); which will mask out the Clipped region from what has been drawn already to the canvas. That being said clippedRect is a rectangle, which may not achieve your goal of a rounded edge. But I bet there's something clever you could do using this methodology. Brady On Aug 18, 2:00 pm, Eddified <[email protected]> wrote: > I'm trying to figure out how to draw a bitmap to the canvas in such a > way that only part of it is actually drawn. The part that would be > drawn corresponds to pixels of the bitmap that "match up" with pixels > of some other shape. > > Photoshop and Flash both have masks like this. > > Specifically, I have rectangular bitmaps that I want to draw as > circles. I don't want the corners of the bitmaps to be drawn. The user > of the application would then see images appearing as circular images. > This would be pretty simple using Flash, but searching "Mask" in the > Android API only gives code that modifies each pixel (like a GIMP or > Photoshop "filter" would). Or at least that's what it appears to me. > > How can I apply a circular "cookie-cutter" to a rectangular bitmap so > that the corners don't show up? Specific solutions to this problem and > general "mask" type solutions are both desired. > > Thank you. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
