You are running into a well known hardware acceleration limitation. Paths are currently transformed into OpenGL texture at the size you define them. This means that if your Path contains only coordinates between 0 and 1, the texture will be 1x1. This is why your addPath() solution works.
This is something we *really* *really* *really* want to improve but it's pretty complicated. We're working on it though :) On Fri, Sep 28, 2012 at 7:33 PM, thibault <[email protected]> wrote: > I've made some progress on this, but I think there are two bugs in the > hardware acceleration: > 1) When Canvas.drawPath is called with a path created via the > Path.transform(Matrix matrix, Path dest) method, nothing is drawn. A work > around is using an alternative method Path.addPath(Path path, Matrix > transform) which works correctly. > 2) Some paths are just not displayed depending on the position. Moving them > by 1.0 in the x or y direction sometimes make them appear. Unfortunately, > this is not a suitable workaround because the layout is dynamic and will > change. I haven't picked up a pattern yet on why certain positions and not > others. It is no where near the edge of the clipping rectangle. > > On Friday, September 28, 2012 8:14:06 PM UTC, thibault wrote: >> >> I have a Drawable whose draw method make calls to Canvas.drawText and >> Canvas.drawPath. When hardware acceleration is enabled, I only see the text >> displayed, none of the paths are displayed. Everything is correctly >> displayed when hardware acceleration is disabled. Does anyone have ideas >> about this? >> > -- > 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 -- Romain Guy Android framework engineer [email protected] -- 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
