You will need to write your own layout manager. On Thu, Jun 9, 2011 at 1:34 PM, Kelly Merrell < kmerr...@mercuryintermedia.com> wrote:
> I have a RelativeLayout where I am adding views dynamically as the > user scrolls vertically or horizontally. I have rolled my own > ViewRecycler since there is potentially thousands of views that could > compose the whole of what can be scrolled, but I only show 30 or so at > any time. Think a zoomed in view of a calendar. > > I am running into performance problems when I add the views that are > about to be seen, onMeasure is called on the RelativeLayout cascading > down to onMeasure getting called on all of it's child views. I already > have the calculated size of how big the RelativeLayout will ever be > and have set that on it's LayoutParameters, so measuring the ViewGroup > isn't necessary, nor is re-measuring the Views that have already been > added with their final size and the newly added view has no bearing on > those views. > > Is there a recommended way to bypass these onMeasure calls or at least > onMeasure calling measureChildren? > > Also posted this on stackoverflow with example code to demonstrate the > undesired behavior: > http://stackoverflow.com/questions/6298827/can-onmeasure-be-skipped-when-adding-a-view-to-a-viewgroup > > -- > 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 > -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. 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 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
