Comments on: UIPageControl + UIScrollView

By: Ben Kaiser

Ben Kaiser — Wed, 30 Jun 2010 06:40:52 +0000

Thank you very much I was in need of this because i had looked at several of my books and they all just had where you had to tap on the page control and it was very hard and annoying and when i tested my app my little brother said why isnt the page changing when i swipe and I knew that would also be a problem for the users so now thnx to your project it will be a nice clean and easy user interface…. THANK YOU XD

By: BUDDAx2

BUDDAx2 — Thu, 27 May 2010 19:24:07 +0000

How many pages can I create? I want to create calendar app with different image on each day. Can I create 365 pages?

By: David Janes

David Janes — Sun, 28 Mar 2010 01:57:40 +0000

Hi Matej, thank you! I had just reopened this code to reuse in a project…

By: Matej Hrescak

Matej Hrescak — Sat, 27 Mar 2010 22:33:50 +0000

Hi,

Very useful resource, thanks. Has a little bug though – when you scroll to a page and then use the UIPageControl, the pageControl is not updated. It’s because the scrollViewDidEndDecelerating is not fired when using the pageControl. Solution is in implementing this method too:

- (void)scrollViewDidEndScrollingAnimation:(UIScrollView *)_scrollView
{
pageControlIsChangingPage = NO;
}

By: David Janes

David Janes — Sun, 14 Mar 2010 13:27:57 +0000

Umm, the usual way I’m sure? Instead of adding a UIImageView, add a UIView and add UIImageView and UIButton or whatever via addSubview:

By: David

David — Sat, 13 Mar 2010 22:43:06 +0000

Great Work! Is it possible to add a UIButton to each page? If so how would you do it?

By: Victor Kovacs

Victor Kovacs — Sat, 06 Mar 2010 02:44:31 +0000

Thanks a Ton. Couldn’t Find this Anywhere. Life Saver.

By: David Janes

David Janes — Fri, 19 Feb 2010 19:11:54 +0000

Use UIImageView to wrap the UIImage

By: Kiki

Kiki — Wed, 17 Feb 2010 09:45:28 +0000

thanks! that’s exactly what i need!!

however, could you somehow explain to me how you managed to get UIImage into the UIScrollView? I so need that method, i want to apply it to my own app, exactly the same thing you did here…

thanks in advance!

By: Dav

Dav — Wed, 06 Jan 2010 02:08:19 +0000

Thanks! This was exactly what I needed. You surely just saved me an hour at least of work.

By: David Janes

David Janes — Tue, 08 Dec 2009 23:47:26 +0000

You can easily create these on the fly – just make sure you always have the previous and the next one there so that scrolling is smooth. When you complete a scroll (detectable in delegate, probably) just relase the pages/images further than one away

By: marc

marc — Mon, 07 Dec 2009 21:30:04 +0000

Hi,

Do you mind explaining whether all of these pages are loaded and kept in memory or created on the fly. Looking at the code it seems that it’s just making the pages once and showing them when needed. What happens if you try loading this with a hundred images?

I’m pretty new to iPhone dev and memory management, I’m curious to know if there’s a way to dynamically create each page as it’s being called for. For example in the case of a photo gallery app.

Cheers!

By: David Janes

David Janes — Mon, 16 Nov 2009 14:23:12 +0000

I was just doing this as a proof of concept, so I probably just grabbed something I found and hacked it till I got a satisfactory result!

By: Marko

Marko — Sat, 14 Nov 2009 20:28:17 +0000

I looked at the code and I was wondering why you choosed to load ScrollingViewController.xib through the appDelegate. Is this because through the ScrollingViewController isn’t possible?

By: Alessign

Alessign — Wed, 28 Oct 2009 10:37:30 +0000

I figured it out:

CGRect frame = window.frame;
frame.origin = CGPointMake(0,20);
window.frame = frame;

By: Alessign

Alessign — Tue, 27 Oct 2009 10:28:36 +0000

have a look here what it does:

http://olasz-ales.com/pic.html

By: Alessign

Alessign — Tue, 27 Oct 2009 10:24:21 +0000

Thanks it works, but it has little issue. in AppDelegate I have this code:

- (void)flipToMenu{

viewController = [[MontgomeryPlaceViewController alloc] initWithNibName:nil bundle:nil];

[cocktailView.view removeFromSuperview];
[self.window addSubview:[viewController view]];
[cocktailView release];
cocktailView = nil;

}

————and in pageControl using view this code———-

- (IBAction)goBack:(id)sender {
MontgomeryPlaceAppDelegate *mainDelegate = (MontgomeryPlaceAppDelegate *)[[UIApplication sharedApplication] delegate];
[mainDelegate flipToMenu];

}

———

It works just fine but it leaves like 10px uncovered from previous view and you can still see half of UIPageControl unit. The white dots under current view. Any idea what that is?

Thanks again

By: David Janes

David Janes — Sat, 24 Oct 2009 16:05:58 +0000

I don’t think dismissModalViewControllerAnimated is what you’re looking for. Probably something like removeFromSuperview

By: Alessign

Alessign — Sat, 24 Oct 2009 12:11:49 +0000

Thanks for the code – it helped me to solve my problem. Much easier than other samples. Anyway, I have a question about it. I added one “view” – menu (menuViewController) with button. The button is navigating to the “scrollingViewController” ….it works just fine, but I can not figure out how to navigate back to the “menuViewController” once the “scrollingViewController is in view. I added another custom button to the “scrollingViewController” in layer above the UIPageControl so it’s visible all the time when pages are swiping, but the action for it “[self dismissModalViewControllerAnimated:NO];” doesn’t seems to be working. It crashes…can somebody give me little clue where to start to solve this problem please?

Thank you in advance

By: Livid

Livid — Mon, 28 Sep 2009 15:12:28 +0000

Thanks for your code. Have been thinking of this for a while.