Tiled drawable sometimes stretches

Question

I have a ListView whose items have a tiled background. To accomplish this, I use the following drawable xml:

Answer 1

This blog entry discusses the issue

combined with this solution from Tapas listed by Ivo van der Wijk, it works for me.

The key was to remove the tiled setting from the XML, then set it to tiled at runtime. It does not work for me if they are both set to tiled.

Edit: actually, I lied. Even with this it seems to sometimes fail to tile.

Would be very nice to have a reliable work-around.

Edit 2: setting it to something else (eg. CLAMPED) then setting it back so far seems to be working.