Is there a way around having to call canvas.drawbitmap() every time? And if I call canvas.translate() after drawing the image doesn't move, it instead moves everything that would draw *after* the call to canvas.translate().
Thank you for your help so far, and I'm hoping you have just a little bit left in you :) On Mar 20, 9:12 am, Riyad Kalla <[email protected]> wrote: > Jeffrey, > > To what Peter said, mobile devices are very fill-rate-limited (at > least these current gen of phones) so depending on how you are > repainting that image over and over and over again to the Canvas, that > could explain the speed issue. > > If you tried a tiny little 16x16 icon and it went much faster with the > same code, then I think you've found your culprit. > > Regardless, Peter's approach sounds like the right way; upload image > data to the GPU one, then just move your "view" of it around in a > circle, panning across the image. > > On Mar 19, 3:07 pm, Jeffrey <[email protected]> wrote: > > > > > > > > > I'm trying to make a simple (or so I thought) live wallpaper that > > takes an image and moves it slowly in a circular motion, to make the > > picture seem less static and more like looking out a window. I took > > the live wallpaper tutorial from the SDK and stripped it down to the > > bare bones so I could add to it. But the issue is that no matter what > > size the image I'm moving, or what format (drawable or bitmap), it is > > only getting about 3 fps. > > > I don't know what to do to make this run faster, I have very limited > > programming knowledge so I don't know if I'm missing something stupid. > > > Also, this is the code I'm using to calculate the circular movement: > > > int NewX = (int) (OffsetX + Math.sin(Dist)*19); > > int NewY = (int) (OffsetY + Math.cos(Dist)*19); > > > where Dist is the speed it's moving and 19 is the radius of the > > circle. > > > Is there an easier way? I looked into Tween animation but I don't know > > how I would implement my circle code into it. -- 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
