How android.view.View.invalidate(int l, int t, int r, int b) make only the dirty area redrawn?

by Romain Guy » Sat, 07 Mar 2009 12:12:48 GMT


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 This just sets the clip bounds. You will receive an onDraw(Canvas)
call as usual and everything you draw outside of the clip bounds will
be ignored. You can do ahead-of-time skips if you know you are
performing intensive computations in onDraw() (which you should not be
doing anyway) but it's most often not worth it.






-- 
Romain Guy
Android framework engineer
romain...@android.com

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

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