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
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Dianne Hackborn
Android framework engineer
hack...@android.com
Note: please don't send private questions to me, as I don't have time to
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questions should be posted on public forums, where I and others can see and
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