**** BEGIN LOGGING AT Mon Dec 29 02:59:56 2008
Dec 29 07:59:25 <nyenyec> hi. is there a user interface guidelines doc for Android somewhere?
Dec 29 12:29:08 <eldenz> it isn't possible to embed views in Tabs, am i right?
Dec 29 12:31:24 <warptrosse_w> hi
Dec 29 17:01:42 <uscheller> I have two different views: a WebView and a SurfaceView. The WebView is shown at the start of my app and should be invisible/destroyed/... whenever the user clicks a button on that view. I already have the javascript calling a java method in my code. Now I am searching for the correct way to switch to the other view.
Dec 29 17:02:48 <romainguy_> look at View.setVisibility()
Dec 29 17:02:56 <romainguy_> you can also look at ViewSwitcher
Dec 29 17:03:03 <romainguy_> you can also add/remove the views
Dec 29 17:03:40 <uscheller> thx
Dec 29 17:04:03 <uscheller> is it possible to handle it in the webview thread or do i need to pass a message to the main thread?
Dec 29 17:04:27 <romainguy_> anything that touches views must happen on the main thread
Dec 29 18:16:17 <sysrpl> hello hello
Dec 29 18:16:33 <sysrpl> a great android app idea
Dec 29 18:16:37 <sysrpl> i bring
Dec 29 18:16:44 <sysrpl> phone soundboards
Dec 29 18:21:29 <jasta> this conversation might be more fruitful in #android...
Dec 29 18:21:53 * michaelnovakjr agrees
Dec 29 18:22:39 * sysrpl agrees too
Dec 29 18:52:13 <warptrosse_w> what´s the best way to paint on screen.... I´m using bitmaps (canvas.drawBitmap(Bitmap bitmap, float left, float right, Paint paint)) but it´s too slow if i have a lot "bitmaps" in memory...
Dec 29 18:52:34 <warptrosse_w> * the faster
Dec 29 19:26:31 <jasta> warptrosse_w: well, what are you trying to draw?
Dec 29 19:27:06 <jasta> if you are actually drawing pictures and not primitives like rectangles and lines, then you of course would need a bitmap in memory.  consider this, if you didn't have it in memory, each time you draw you'd have to read it from disk which would be expensive
Dec 29 19:27:31 <jasta> a compromise might be to keep it in memory only so long as your view is attached to the screen, then free it when it isn't.
Dec 29 19:27:51 <jasta> but in general, this is not necessarily a good idea.
Dec 29 19:29:02 <warptrosse_w> i´m drawing rgb images
Dec 29 19:29:44 <warptrosse_w> http://www.mibbit.com/pb/hj51jc
Dec 29 19:30:16 <warptrosse_w> let me explain better...
Dec 29 19:30:39 <warptrosse_w> painting step takes only 10 ms with OpenGL es
Dec 29 19:30:53 <warptrosse_w> bitmaps creation takes 200 ms at less....
Dec 29 19:31:42 <warptrosse_w> and i´m using a dobble buffer..
Dec 29 19:32:40 <warptrosse_w> so i paint all in the buffer... then on screen with --> canvas.drawBitmap(buffer.getBitmap(), 0, 0, null);
Dec 29 19:34:37 <jasta> best to talk to romain about this.  i'm sure he can recommend an ideal solution.
Dec 29 19:34:38 <warptrosse_w> jasta i need to create some bitmaps in every loop.... becouse i must refresh the game map...
Dec 29 19:34:51 <jasta> oh, well do not perform frequent allocations.
Dec 29 19:35:09 <jasta> the garbage collector is stop the world, and you will have terrible performance implications if you use it in any tight loop or critical path.
Dec 29 19:35:21 <jasta> re-use your allocated bitmap where posssible
Dec 29 19:36:48 <warptrosse_w> but check if a pixel has changed should take time?
Dec 29 19:39:55 <jasta> why don't you just maintain a map of all dirty rectangles?
Dec 29 19:39:58 <jasta> and only redraw those?
Dec 29 19:41:42 <warptrosse_w> i try that... i put all in buffers... but i can´t reduce form 500 ms to 150 ms
Dec 29 19:41:52 <warptrosse_w> (game loop)
Dec 29 19:42:46 <jasta> can you show me the code then?
Dec 29 19:43:15 <warptrosse_w> what part?
Dec 29 19:43:27 <warptrosse_w> because is too bug....
Dec 29 19:45:00 <jasta> im just not getting a good sense of exactly what your game loop looks like.
Dec 29 19:45:12 <jasta> i suspect that you are performing large allocations often and you shouldn't be, but i need to confirm.
Dec 29 19:45:18 <warptrosse_w> well you have a map
Dec 29 19:45:39 <warptrosse_w> composed by tiles
Dec 29 19:45:47 <warptrosse_w> that tiles are rgb images
Dec 29 19:46:07 <warptrosse_w> suppose putting all in buffers...
Dec 29 19:46:32 <warptrosse_w> so i create all bitmaps and i put all in buffers...
Dec 29 19:46:35 <warptrosse_w> then
Dec 29 19:46:52 <warptrosse_w> i paint some off those tiles
Dec 29 19:46:54 <warptrosse_w> on screen
Dec 29 19:47:28 <jasta> seems sensible.
Dec 29 19:47:33 <warptrosse_w> sorry, put all those buffers on a single image... then paint on screen
Dec 29 19:47:34 <jasta> that's like how the Snake game is built
Dec 29 19:47:42 <jasta> see, why would you combine them to pain ton screen?
Dec 29 19:48:46 <warptrosse_w> becouse i put tiles in different positions
Dec 29 19:48:54 <warptrosse_w> inside "main" image...
Dec 29 19:49:06 <jasta> so draw them at those positions manually
Dec 29 19:49:14 <jasta> there is no need to combine them into a larger bitmap.
Dec 29 19:50:45 <jasta> you can composite directly from the tiled bitmaps to the screen, using canvas.translate and canvas.drawBitmap.
Dec 29 19:51:32 <jasta> and as i said, do not perform allocations in the drawing loop.  or excesive allocations anywhere else in your game loop.  allocations are very expensive.
Dec 29 19:51:48 <warptrosse_w> sounds good
Dec 29 19:51:49 <jasta> more accurately, the garbage collector is damaging to responsiveness.
Dec 29 19:54:33 <warptrosse_w> but i need to put canvas.translate and canvas.drawBitmap in whole game...
Dec 29 19:54:55 <jasta> i can't understand you.  if you can't show me some code, i don't know that i can help you further.
Dec 29 21:56:41 <zhobbs> I'm using a LayoutAnimation with a ListView, and it does use the LayoutAnimation the first time I setAdapter() on the ListView...
Dec 29 21:57:09 <zhobbs> but I then setAdapter(null), do some work, and then set a new adapter...I'd like it to animate the children in everytime I do this...
Dec 29 21:58:09 <zhobbs> don't have the source on this box yet...d/ling it now
Dec 29 22:00:02 <jasta> cant you just force a layout?
Dec 29 22:00:19 <jasta> i thought layoutanimations occurred anytime a layout pass is made.  oh wait, that makes no sense actually
Dec 29 22:00:22 <jasta> what a poorly named class then
Dec 29 22:00:45 <jasta> now im curious, im looking in the source
Dec 29 22:01:06 <zhobbs> yeah, with a ListView it would then have to execute the layout animation each time it scrolled if that was the case
Dec 29 22:02:29 <zhobbs> I'm just now doing a "repo sync"...so i won't have the source for a while
Dec 29 22:03:00 <jasta> im looking for you
Dec 29 22:03:09 <jasta> btw, long time no see. what have you eben up to?
Dec 29 22:03:44 <zhobbs> moving + holidays
Dec 29 22:03:50 <zhobbs> almost settled in now though
Dec 29 22:04:32 <jasta> i looks like the animation is controlled by a simple flag on the ViewGroup
Dec 29 22:04:51 <jasta> when a layout animation is set, it sets FLAG_RUN_ANIMATION, which is then reset by dispatchDraw which runs the animation
Dec 29 22:05:02 <jasta> so...try just using setLayoutAnimation again.
Dec 29 22:05:18 <zhobbs> ok, thanks
Dec 29 22:05:42 <jasta> that's my crude 5 minutes looking at it understanding though.  so who knows what will actually happen :)
Dec 29 22:08:18 <jasta> you might also need to invalidate the listview, because you gotta trigger dispatchDraw to run.
Dec 29 22:08:32 <jasta> actually no, because setAdapter(null) will do that.
Dec 29 22:09:00 <jasta> or rather, setAdapter will do it regardless.
Dec 29 22:10:25 <zhobbs> nice, resetting the LayoutAnimation works
Dec 29 22:10:27 <zhobbs> thanks
Dec 29 22:13:22 <jasta> no problem
Dec 29 23:18:16 <ph|ber> anyone using cupcake?? do any of the drivers work now?
Dec 30 02:19:35 <savid> Ok, so I've got my nifty ListView items looking the way I want it:   http://pastebin.com/m6f8bdb99,   but now I'm trying to figure out how I can make the entire item clickable,  so that when it is clicked, it gets the "hilight" effect and the checkbox is clicked.  How do I do this?
Dec 30 02:39:11 <ph|ber> anyone using cupcake?? do any of the drivers work now?
**** ENDING LOGGING AT Tue Dec 30 02:59:56 2008