ScrollView with multiple pages - objective-c

Question

Normally, tutorials of UIScrollView talk about multiple pages with the size of the screen.
Beginning with the first page in the screen and the second page appearing a little in the right side:
And when scrolled, the same thing occurs with the second page: the first and the third page appears in the left/right side.
This scrollView is "implementable"? There's a way to use pages but with not entire screen width?

Answer 1

Yes you can do that, just change the size of your scroll view to your desired size,
Content Size as (numberOfPages * width) of your scrollview
Also enable pagination
scrollView.pagingEnabled = YES;
scrollView.contentSize = CGSizeMake(numberOfPages * scrollView.frame.size.width, 1);
For more idea, refer to this sample project, just change scrollview size in xib :)
Hope it helps :)

Answer 2

try setting your scroll view content size
scrollView.contentSize = CGSizeMake(W, 1);
remember that "W" has to be a number greater then your scroll view's width in order to scroll horizontal. 1 is where you set the hight of your content size, if you'd like it to scroll vertically you'd make the "1" greater then your scrollview's hight.

Answer 3

You need to implement a scroll view container (e.g. ScrollViewContainer) to handle -hitTest:withEvent: method:
ScrollViewContainer.h:
#interface BookAlbumScrollViewContainer : UIView {
UIScrollView * theScrollView_;
}
#property (nonatomic, retain) UIScrollView * theScrollView;
#end
ScrollViewContainer.m:
#implementation BookAlbumScrollViewContainer
#synthesize theScrollView = theScrollView_;
//...
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event {
UIView * child = [super hitTest:point withEvent:event];
if (child == self)
return self.theScrollView;
return child;
}
#end
HERE is a related QA on -hitTest:withEvent: method.
When you set your scroll view, set it like:
CGFloat yourScrollViewPageWidth = 280.f;
CGRect yourScrollViewFrame = CGRectMake((320.f - yourScrollViewPageWidth) / 2.f, 0.f, yourScrollViewPageWidth, 200.f);
CGRect theScrollViewContainerFrame = CGRectMake(0.f, 0.f, 320.f, 200.f);
// Your scroll view
yourScrollView_ = [[UIScrollView alloc] initWithFrame:yourScrollViewFrame];
//...
[self.view addSubview:bookScrollView_];
// Your scroll view container to handle touches, it should be over |yourScrollView_|
theScrollViewContainer_ = [ScrollViewContainer alloc];
[theScrollViewContainer_ initWithFrame:theScrollViewContainerFrame];
[theScrollViewContainer_ setBookAlbumScrollView:yourScrollView_];
[self.view theScrollViewContainer_];