Hi Romain, If you don't mind, would you please describe how the implicit throttling mechanism works, or, point to any documentation on it?
I think I am running into this, when my activities start, and the view is being invalidated often, it is throttled it seems for a little while (5-10 seconds?). After what seems to be an initial throttling, all is fine and I am seeing good frame rates. Some of my activities do a lot of of canvas drawing (using the HW accelerated rendering) triggered by sensor updates, and since JB I believe I've seen this throttling when the activity starts. I'd love to avoid this, while still getting 30fps+ when necessary. I could be wrong but it also seems the throttling is more prevalent/present if text is being drawn using canvas.drawText, but have not yet dug deeper into experimenting and figuring out how I can trigger or not trigger the throttling. Adam On Thursday, October 11, 2012 5:41:08 PM UTC-4, Romain Guy (Google) wrote: > > There is an implicit throttling mechanism as of 4.1 but even then it's > bad. If you don't need to draw, don't draw. You're going to waste > battery. > > On Thu, Oct 11, 2012 at 2:34 PM, bob <b...@coolfone.comze.com<javascript:>> > wrote: > > As you may know, you can create a View subclass and then call > invalidate() > > at the end of the painting method. > > > > > > This produces continuous updating. > > > > > > Is this really really bad? > > > > > > It sure is attractive due to its simplicity. > > > > > > However, there is no explicit throttling mechanism, which can be an > issue if > > there is also no implicit one. > > > > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to > > android-d...@googlegroups.com<javascript:> > > To unsubscribe from this group, send email to > > android-developers+unsubscr...@googlegroups.com <javascript:> > > For more options, visit this group at > > http://groups.google.com/group/android-developers?hl=en > > > > -- > Romain Guy > Android framework engineer > roma...@android.com <javascript:> > -- 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
