Scrolling group on iPad

Jim sims sims at ezpzapps.com
Sun Aug 4 15:45:55 EDT 2013


Hello Bob - yes i think ya did and no it wasn't me :-) if ya owe him lots
of money then it might have been me, maybe.

sims

On Sunday, August 4, 2013, Robert Sneidar wrote:

> I may have asked you before I don't remember. I had a friend a long time
> ago named Jim Sims who used to have a handyman business in So Cal. Would
> that be you?
>
> Bob Sneidar
>
>
> On Aug 4, 2013, at 9:21 AM, Jim sims wrote:
>
> > Solved - i think
> >
> > Just in case somone else has a similar issue here is what i did.
> >
> > At scrollerBeginDrag i set the filenames of the images to empty but kept
> > text field text.
> >
> > At scrollerEndDrag i reloaded the filenames into the images.
> >
> > These images are all thumbnails so they load very quickly, plus there are
> > not that many.
> >
> > This will be done at a museum with a local server and apple airports
> things
> > (maybe the only bottleneck) so it should be quick.
> >
> > My test was fast with a server in Texas and me in Venice,
> > Italy...wait...Jeez what am i doing at this desk!! Venice! Going to
> > get gelato at the
> > Rialto Bridge!!! Ciao ciao!
> >
> > sims
> > --
> >
> > On Sunday, August 4, 2013, Jim sims wrote:
> >
> >> I'm pretty sure now that it isn't the loading of images that is the
> >> problem. I added code that verifies when all thumbnail images are
> loaded.
> >>
> >> When i have only a few images the group scrolls well - up and down all i
> >> want.
> >>
> >> When i have many more images (say 20 instead of 7) then the group starts
> >> to scroll and then freezes.
> >>
> >> Tried lockloc of all controls but no happiness.
> >>
> >> With a scrolling list fid i recall there is a limit to the number of
> lines
> >> you can have and scroll with iOS - maybe around 200 lines. This problem
> i
> >> now have feels like that one to me.
> >>
> >> Do datagrids have a limit to the number of rows? If i recall i think he
> >> loads only what is viewable and perhaps that gets around an issue like i
> >> now have.
> >>
> >> Sooooo i need a row consisting of: image  - text field - text field
> >>
> >> Anyone got an example of something similar on a datagrid that i can
> >> dissect?
> >>
> >>
> >> Thanks for all the replies people.
> >>
> >> sims
> >> --
> >>
> >>
> >> On Sunday, August 4, 2013, Scott Morrow wrote:
> >>
> >>> Yes, 'load'   I'm glad you were able to take my vague suggestion and
> >>> clarify it!  Clarified it for me, too  :- )
> >>>
> >>> If you are using LC version 6 then John's suggestion of 'prepare image'
> >>> sounds great.
> >>>
> >>> --
> >>> Scott
> >>>
> >>> On Aug 4, 2013, at 4:27 AM, Jim sims <sims at ezpzapps.com> wrote:
> >>>
> >>>> Thanks for the reply Scott,
> >>>>
> >>>> You must be referring to "load" as in "load URL bla blah"
> >>>>
> >>>> Didn't think that was ok on iOS but reading the dictionary it sounds
> >>> "sort
> >>>> of ok" - done without liburl in the background.
> >>>>
> >>>> Will give it a shot and see.
> >>>>
> >>>> Am in Venice, swapped my flat (flat for flat) for this excellent one
> >>> that
> >>>> has a most excellent location - del Bovolo staircase outside the
> bedroom
> >>>> window. Hate to spend the day chasing this bug :-P but ya gotta do
> what
> >>> ya
> >>>> gotta do...i reckon.
> >>>>
> >>>> sims
> >>>>
> >>>> On Sunday, August 4, 2013, Scott Morrow wrote:
> >>>>
> >>>>> Jim, have you tried caching the images to the device first and then
> >>>>> pointing at the cached files? (I don't believe this has anything to
> do
> >>> with
> >>>>> dataGrid or not dataGrid.)
> >>>>>
> >>>>> --
> >>>>> Scott Morrow
> >>>>>
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