ListView sometimes uses the "item" unit (total number of items, first
visible item, etc) instead of pixels because it cannot always know the
exact pixel height of all items. You can also use units that come from your
dataset (a map could very well use meters for instance, a graph could use
time or percentage.)
Feel free to use pixels but it's not mandatory. What matters is that all 3
methods use the same unit.
On Oct 6, 2012 7:50 AM, "Raffaele Sgarro" <raffaelesga...@gmail.com> wrote: