Well, it looks like you're setting every pixel on the bitmap on every frame. Android is not a PC, it's equivalent to a 10-15 year old pc, you'll have to optimize your code.
You can try drawing directly to the canvas, instead of drawing to a bitmap, and then drawing that bitmap onto the canvas. Watch this: http://code.google.com/events/io/2009/sessions/WritingRealTimeGamesAndroid.html and then download things like this: http://code.google.com/p/apps-for-android/source/browse/trunk/#trunk/SpriteMethodTest and this to see how it's done in production: http://replicaisland.net/ (it's an open source 2d game) On Sat, Jun 19, 2010 at 6:45 AM, qute <rosen...@gmail.com> wrote: > Hi > > I'm new to this android development. > I've read a lot on the net how to do it, but I can't get the speed I > want/expect. > > > In init: > bitmap = Bitmap.createBitmap(WIDTH, HEIGHT, Bitmap.Config.ARGB_8888); > > my onDraw method: > protected void onDraw(Canvas canvas) { > > for (int j = 0; j < HEIGHT-2; j++) { > int heat = 0; > for (int i = 0; i < WIDTH; i++) { > heat = firebuf[j][i]; > bitmap.setPixel(i, j, palbuf[heat]); > } > } > > canvas.drawBitmap(bitmap, 0, 0, null); > > // refresh the canvas > invalidate(); > } > > > > Is this the way to do it? > I come from the PC world, where I would have 2 buffers directly to the > gfx card. Write in one while the other is shown and then switch. > Couldn't find out how to do it on the android. > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- http://diastrofunk.com, http://developingthedream.blogspot.com/, http://www.youtube.com/user/revoltingx, ~Isaiah 55:8-9 -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
