Hi Dianne, I've just spent some time looking at the cache code in View, I was trying to force it to use a higher color depth but as you point out the screen may be 16bit anyway so many thanks I'll just switch to F2F2F2!
I remember reading about some Window colorspace changes on the blog, but I forget which platform version. A quick test: getWindow().setFormat(PixelFormat.RGBA_8888); sees the problem vanish, but I'll not be using that of course, and just stick to F2F2F2. Cheers, Richard On 19 Apr 2011, at 17:44, Dianne Hackborn wrote: > The cache is often 16bpp. Pick a color that can be rendered well at 16bpp, > such as #f2f2f2. > > You want to do this anyway because if your app is running on a 16bpp screen > you will also get these kinds of artifacts. > > On Tue, Apr 19, 2011 at 9:20 AM, Richard Leggett <richard.legg...@gmail.com> > wrote: > Hi all, > > I think I could be out of luck with this one, but does anyone know > whether ListView does anything to colors when using scrolling cache? > > I have a ListView with a background color of #F3F3F3, opaque light > grey. When scrolling the list, the grey turns a grey-pink and usually > resets to grey again when at rest. > > Setting scrollingCache to false prevents the pink from appearing, but > I'm worried about the performance hit. > > Setting the cacheColorHint to transparent has no effect. > > BitmapDrawable and ColorDrawables behave the same. > > As it happens the designer has used a lot of F3F3F3 grey in this app, > so I'm seeing quite a lot of pink (Nexus One, 2.3.3). > > Here's hoping I missed something. > > Regards, > Richard > > -- > 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 -- 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
