I want implement paging same as safari in iphone.When user touch below button of bottom then thaey shows total pages open so user can scroll wvery page.I want to implement this type of functionality.how it possible.Please advice me for this query.
Thanks in advance.
To implement the page scrolling page have a look at using UIScrollView and UIPageControl. Here's sample code from Apple which shows a simple implementation of this.
Basically each page is a view controller which UIScrollView manages by letting you swipe to scroll from one to the other. Not sure if this is exactly how safari does it but it's a good start.
Related
Sorry this is a pretty silly question, but I cannot think what the actual menu style is called. I'm trying to find a tutorial on how to create a instructions page that you flick through left and right to see more instructions. Basically exactly how the home screen works with dots representing how many screens there are and which screen the user is on, plus the same animation where if you flick left/right the next one slides on.
If anyone knows what these are commonly referred to as I can go look up some tutorials.
Thanks a lot,
Chris
This control is called a UIPageControl. And here's a link to a tutorial.
Use a UIScrollview with pagingEnabled.
add a UIPageControl to the view (wherever you want to see the dots).
Instruction pages should be added as subviews to the UIScrollView
Make sure to use UIScrollView and UIPageControl delegates to update the page in the pageControl.
If you need more info on how to implement this, search with keywords UIScrollView and UIPageControl
I am a french 17 years old guy so excuse my english.
I am creating an app' using an UIScrollView with an UIPageControl to display multiple UIView pages from UIViewControllers (which display an object) . Everything works pretty great.
Now i would like to add a new page (and a new empty object but that is not a problem) when I swipe the UIScrollView to the right in the last view.
How could I do that ? And if it's not possible, how can I update the UIScrollView ?
Thank you very much !
I think you need to keep an eye on two things. scrollViewDidScroll: & UIPageControl's currentPage. When you determine that the user is currently viewing the rightmost page & the UIScrollView was scrolled, you can add a new page to the UIPageControl. The amount by which the scroll view was scrolled is related to scrollView.contentOffset.x. A new page can be added to the page control by incrementing its numberOfPages & setting the currentPage to the newest page.
HTH,
Akshay
This is what you are looking for I think : a sample code from Apple to build a photo viewer that load images just before they appear on screen.
https://developer.apple.com/library/ios/#samplecode/PhotoScroller/Introduction/Intro.html#//apple_ref/doc/uid/DTS40010080
What I want to accomplish is something like this:
Two different scrollViews, and each one scrolls horizontically. Each showing 3 images, and a half one (or 1/3th) piece of the next image in the datasource of the scrollview.
Does anyone know how to accomplish such a scrollview?
I also want to be able to tap an image to flip it and show some information and a button to the detail. (See lower scrollview).
Tapping it again would just show back the image, much like the coverflow ui inside itunes, but without the coverflow being 3D...
Any help is welcome :)
Thanks in advance,
Lewion
Scroll view doesn't have a datasource. What you are looking for is standard scrolling and nothing special.. So it is definitely doable... Check the scrolling and photo scroller sample codes from apple developer samples. For more implementations of scroll view check the scroll view suite sample code and read the scroll view programming guide.
The flip animation is also a standard animation for a view and is easily doable. For example, create a utility application for iphone. It has a flip side view. See how that animation is done.
Can I develop an application on web to draw something on iPhone? I guess not because when I draw in the browser it will be treated as "dragging" but I just want to double check for a solution out there.
Thanks.
Marcelo
I presume you mean to ask if is possible to draw into a UIWebView?
I don't think so. In UIWebView the page display view is embedded in a scroll view and scroll views trap all touches to determine if they can scroll. It's pretty much configured as read only.
You could in theory put a transparent view over the web view to trap the touches then send those to the the actual browser view. I haven't done it but it might possible.
I have been facing the same nested UIScrollView problem for long time.I tried some open source codes like Scrolling madness ,three-20 and others but all fails finaly.I am trying to make a photo Viewer application same as iPhone.For that I have created the structure like this:-
1)one View controller.
2)on view of view controller one UIScrollView (i.e inner/parent scroll view) as a child.
3)on inner/parent scroll view number of child scroll views(i.e. outer/child scroll views) ,each represents one page of photos application.
4)On each scroll view one image View on which i am displaying my image.
So what I want is when user scrolls the outer scroll view it should scroll horizontally with all the child views so I will get the look and feel of paging in photos application.Also when user is on one specific image(i.e. child/outer scroll view) he should be able to zoom in/out,swipes and perform single/double tapping.I was able to make it work in sdk 2.1,but it dosnt work since sdk 3.0.Please tell me the idea behind your project.Means which scroll view you are subclassing ,in which view to detect touches.How this completely child - parent relation should be.
If possible provide any sample code also.
There is a WWDC session from 2010 that deals with this very issue.
Here's the short of it:
You need a single scroll view that is paginated and scrolls horizontally. Each "page" of that scroll view is another scroll view containing a photo.
First, it looks like you want to subclass UIScrollView? Every interaction method you need is provided for you in either the delegate callbacks or the touch methods. (Many of Apple's more advanced classes, such as UIScrollView, react poorly to subclassing.)
Second, it sounds like you have a first responder problem. IOW, your innermost scrollview isn't getting the first crack at the touch events.
Andrew
I also struggled with this for a long time trying samples you mentioned. I could finally figure it out with the samples provided by apple (iphone dev center).
http://developer.apple.com/iphone/library/samplecode/Scrolling/Introduction/Intro.html
http://developer.apple.com/iphone/library/samplecode/ScrollViewSuite/Introduction/Intro.html
The first one is pretty basic and probably what u already have. The second one is all about zooming, etc. Just study these and the samples you already have, I think you will be able to figure it out. On specific topics just come back here search for answers or post another question.
EDIT: I forgot this one check out these examples by Andrey Tarantsov hosted on github. This is what you want... http://github.com/andreyvit/ScrollingMadness