On Jul 21, 2009, at 7:34 AM, Eric E. Dolecki wrote:
I'm a real noob when it comes to the UIScrollView. What I would like
to do:
I have a View that contains a UIScrollView. Instead of loading an
image in
there, what I would like to do is load in another view (say an image
that's
a lot wider than the portrait iPhone... which has button sprinkled
throughout).
So the idea is you could pan around the view, and click on points of
interest in the image (using UIButtons or whatever). But I'm not
quite sure
how to set this up. I created a View XIB (no view controller) and
put some
stuff in there.
NSArray *nibViews = [[NSBundle mainBundle] loadNibNamed:@"details"
owner:self options:nil];
UIView *infoView = [nibViews objectAtIndex:0];
[myScrollView addSubview:infoView];
This works, but I can't make the view wider than the iPhone
portrait. How
should I handle this?
Right. You aren't supposed to make views larger than the screen (at
least according to the docs). I assume that is to keep the layer sizes
reasonable.
What you do is set the contentSize of the UIScrollView to be as large
as you want. Then, in your delegate callbacks or UIScrollView
subclass, you add/remove view tiles as needed to present a seamless
view to the user. As tiles move offscreen you reuse them as new tiles
on the opposite side.
Apple has a very nice tiled image view sample from WWDC 09 available
online.
Dave
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