Hi, You cannot achieve more than 60 fps because of the way the UI is sync'd with the underlying hardware. The invalidate/onDraw mechanism can be very costly for a game if you have a deep view hierarchy.
On Fri, Feb 27, 2009 at 1:31 PM, Markus Junginger <[email protected]> wrote: > > I am in the middle of writing an game and got curious what happens > outside my code. I extended the View class with everything happing > inside onDraw (updating the model and rendering it). Before onDraw is > exited, a invalidate() is fired so the View gets repainted > continously. With this approach I get 60 fps most of the time > (sometimes it lacks behind shortly), which is OK for now. However, the > game will get more complex, and I did some measuring with the > following averages of painting one frame: > > * My code inside onDraw consumes 5ms > * Between the calls of onDraw 10ms are "consumed" > > So twice the time is spend outside my code: What exactly happens here? > Is there just a 60fps maximum (causing the system to wait until the > next frame is painted), or is there so much overhead going on behind > the scene? > > I know about SurfaceView and decoupling the rendering from the GUI > Thread, but I haven't tried that yet. To me, it did not seem to make a > difference in which thread my game code is executed, so I stayed with > the View so far. > > Markus > > > -- Romain Guy Android framework engineer [email protected] Note: please don't send private questions to me, as I don't have time to provide private support. All such questions should be posted on public forums, where I and others can see and answer them --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
