I am creating a iPad App and it has several views to load data,but for one view i need to add split view. I dont need split views in other views. They are just detail pages. I search Through the net and found lots of tutorials based on iPad split view. But the problem is they all are creating a project as Split view project or they create a window base app and add slipt view to the delegate. I dont need to do that, I need to implement this split view only for one view. Is There any way to overcome this problem?
You can add the split view inside a Navigation Controller.
Even if the Split View is a container view controller and Apple recommends in the documentation that all containers should not be embedded in other containers, adding a split view inside a navigation controller works correctly and I never noticed any side effect in doing it.
Basically what you should do is:
- in the app delegate create a UINavigationController and use it as root view of your application window
- hide the navigation controller navigation bar if you don't want to see it (showing a split view with a main navbar on top is not nice looking...)
- then add your view controllers inside the navigation bar.
Example: imagine you have this application views sequence:
FIRST VIEW (full view = detail page)
SECOND VIEW (split view)
THIRD VIEW (full = detail page)
So you can represent FIRST and THIRD as standard view controllers (full screen), while SECOND will be a split view. Your app will be initialized by creating the main navigation controller, adding FIRST on it as top controller and using the main navigation controller as window's root view.
Than use the navigation controller push, pop methods to switch between these views or change the navigation controller "viewControllers" array directly if you don't want the recommended push/pop methods.
If you need to add special behavior to the navigation controller based on the type of view on top, just register your app delegate as navigation controller delegate (or a "main controller" object dedicated to this if you don't want to complicate your app delegate).
I am not 100% sure, but it seems to me that you can't use a SplitView just somewhere in your view hierarchy.
The Apple intended way is to use the SplitViewController as the top level controller. The left side of it can include a drill down mechanism with a navigation controller so you are ably to drill down hierarchies and the right side will present details for the item you select on the left side.
If you need a view with some kind of split mechanism in it, you probably have to code it yourself. Or even better: find some other mechanism you can use in your UI.
How are you switching your view hierarchies now? Maybe you could integrate your existing UI into a SplitViewController?
Related
I have a simple iOS app that I want to use a split view in, but I also need some normal view controllers(non Split view). So I have my story board setup like this:
Story board
I will add more views to the base navigation view depending on what they click on in the first view some will go to other standard views and one will go to another split view. as I can not add the split view to my base navigation view (get an error saying it had to be the root view) I replace the root view with the split when the button is clicked using a replace Segue.
My question is: how do I get back to the first view once I am in the splitview? can I somehow had a custom back button to the detail view title bar to go back? Or am I going about the whole thing wrong? Any help or a push in the right direction would be great!
I ran into this problem myself. Unfortunately, UISplitViewController cannot be added as a child of another view controller. I must be the root view controller of a window. From the docs: When building your app’s user interface, the split view controller is typically the root view controller of your app’s window. The way I got around this was just creating a container view controller in my storyboard: It ended up looking like this:
It's pretty basic, just adding the two view controllers as children of the parent view controller. You can control the width of each on straight in IB.
Difference between navigation controller and viewcontroller?
I mean how can we decide when to use navigation controller or a normal view controller?
Just my two cents:
A UIViewController represents a single view and you can put buttons in this view controller to segue to another UIViewController. If you want to segue back to the first UIViewController, you will have to worry about putting a button in the second view controller that leads back to the first. If you are drilling down into view controllers, this can be tedious having to remember to give the user a way back to a previous view controller.
A UINavigationController does a lot of this tedious work for you. As mentioned, it contains a stack of UIViewControllers. It will create a navigation bar at the top that will allow you to easily go back up the hierarchy of view controllers.
In short, if you have a hierarchy of view controllers that you want the user to easily navigate around, inbed your UIViewControllers into a UINavigation controller.
UINavigation Controller is a combination of 2 or more view controllers,those are connected through "segue" feature of "Ios". Benefit of using Navigation Controller is that we can navigate between different screens easily with default "Back" button on each screen . We don't need to give any individual button to move back onto previous screen.
Whereas a ViewController provides a single screen & we can connect more screen using "segue" but we also have to design a "Back" button to navigate onto previous screen.
We should use Navigation Controller , in case where one option resides into another one.Like in an iPhone settings ->Mobile Data Options->Voice->4G or 3G or 2G. It's a hierarchy of menus so here navigation Controller is better option than using UIController.
We should use UiController with "segue " , in case where
we have to choose one option among multiple.Like -
Photos ->There are many folders in which , any one is selected, that are Favourites or People or Places .
Here's a very brief, high-level overview.
Whereas a UIViewController can be thought of as representing a single 'screen', UINavigationController, as the name implies, is used as a means of being able to navigate multiple 'screens'.
From the documentation:
The UINavigationController class implements a specialized view controller that manages the navigation of hierarchical content. This navigation interface makes it possible to present your data efficiently and makes it easier for the user to navigate that content. You generally use this class as-is but in iOS 6 and later you may subclass to customize the class behavior.
Please see the rest of the UINavigationController documentation here: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UINavigationController_Class/index.html
Okay, Thank you everyone for helping me to find out a clear answer on this.
Navigation Controller consists of navigation bar and tool bar to move in and out from view controllers present in navigation stack.Therefore there can be many view controllers in Navigation Controller.
In view controller we don't have this facility and it represents a single screen view.
Please correct me If I am wrong.
See the Navigation Controller discussion in the View Controller Catalog.
Bottom line, a navigation controller actually is a view controller, but it just happens to be one that presents and navigates between other view controllers.
in the google maps app for ios. When you select the settings button, it will show you a view of options such as "traffic", "public transit", etc.
My question is how this is done on ios.
I tried following this tutorial but it says that it won't work on uinavigationviewcrollers. I have seen this partial segue of the the view in apps that use a navigational controller. How do they create that?
It's not a partial segue. It's not a segue at all, it use of containment view controllers.
Instead of a single view controller which transitions to a different view controller image one single master view controller. For simplicity, we'll say this view controller has two views (of the root), both of which cover the the whole screen. For this example let's think of them as "main" view and "menu" view.
Other than these two empty views, the view controller has no content. That's because this view controller does nothing other than manage other view controllers which get stuck into the two views. It will have a couple methods manage them, like presentInMainView:(UIViewController *)viewcontroller and presentInMenuView:(UIViewController *)viewcontroller
When the program starts running the master view controller will programmatically add the map to it's "main" view. The map view controller now cover the whole screen and looks and acts like it's the top level view controller, but it isn't. It's contained. At some point some taps the settings button and the map view controller will make a call to it's parent and say presentInMenuView:... and the master view controller will then load up a second view controller into the menu view. The menu view could even be located off the left side of the screen and the master view controller animates the menu view frame to side it right covering the whole screen. Assuming the menu view controller only has content which covers the left half of the screen you'll see the map view controller hiding behind it.
That really only scratches the surface, lots can be done with container view controllers. You could create a container which lets you brings up a dozen different views all populated with view different view controllers. You could size and arrange them on all over the screen and each child view controller could still only have to deal with it's own contents.
For more info there is the Apple Developer Guide and the WWDC 2011 Videos where it was introduced (session 102)
I used SWRevealViewController For similar type of sidebar animation.They given the good example of how to use SWRevealViewController also please try it once.
I understand that view controllers help control multiple views in an application, but I have trouble understanding when to use them.
If I have an application with a main page, several views with a "hierarchy" structure, and an about page not connected with the hierarchy, what files should my application have? An appdelegate, navigation controller and view controller? More than one view controller? Just a navigation controller?
Also, should they all be contained in one .xib file, or multiple .xib files?
Any help would be greatly appreciated.
Thanks.
A good habit is to have a UIViewController for each page you want to show. If I get the structure of your app you should have a main page (with many other UIViews inside it) and another page (about page). If that's true I suggest two UIViewControllers.
The UINavigationController is a subclass of UIViewController that lets you "navigate" among the pages. It's not strictly necessary but suggested (you can also implement your self a custom navigation system, but it's easier to exploit the one Apple offers you). Another navigation system is the one based on UITabBarController, if you want to take a look.
Assuming I get the structure of your app you should need two .xib file, one for each page you have.
The app delegate is conceptually different from a view controller, you'll have just a single app delegate, automatically created by Xcode (you can, of course, modify it to fit your needs).
Each "screenful of content" (Apple uses this term) should be handled by it's UIViewController or more likely a subclass of it. The point of view controller is to handle view appearing or disappearing (going on/offscreen), device rotation, memory management, navigating to other view controllers and so on. If you are creating your UI with IB, then each of those view controllers would most likely have it's own .xib file.
Each view controller has one view (it's view property) that acts as main view for each "screenful of content" to which you then add your subviews.
UINavigationController and UITabBarcontroller are there to help you control the hierarchy of your app. They only act as containers for other view controllers and don't contain any UI except navigation bar or tab bar. Using tab bar controller you can have multiple view controllers which act exactly like browser tabs. Using navigation controller you can have a stack-like navigation where new view controllers are pushed from right to left and are popped from left to right when user goes back to previous view controller. You can even have a view controller inside navigation controller inside a tab bar controller.
If you don't want to use tab bar or navigation controller, you can navigate through your view controllers by presenting them modally using presentModalViewController:animated: and dismissing by dismissModalViewControllerAnimated:. If you send YES for animated parameter of these methods, you will get an animation specified by the modalTransitionStyle property of view controller being presented or dismissed. Possible animations are slide in from bottom (default), horizontal flip of entire screen, fade in/out and half-page curl.
There are also some Apple-provided subclasses of UIViewController that help you setup your UI quicker like UITableViewController which is basically a view controller that contains a table as it's main view and conforms to 'UITableViewdataSourceanddelegate` protocols which are required to define how each cell looks and what it contains.
On iPad there is one additional container controller UISplitViewController and one additional way to present new view controllers using UIPopover.
Could anybody please suggest the route to create splitview on top of TabBarViewController?
I just read this :
A split view controller must always be the root of any interface you
create. In other words, you must always install the view from
aUISplitViewController object as the root view of your application’s
window. The panes of your split-view interface may then contain
navigation controllers, tab bar controllers, or any other type of view
controller you need to implement your interface.
on this page at Apple's developer webpage. I imagine that in the mainwindow.xib you have to add a tabbbarcontroller alongside the splitviewcontroller and then add it to the detail view in the corresponding view you want it to appear.
The split view controller’s view
should always be installed as the root
view of your application window. You
should never present a split view
inside of a navigation or tab bar
interface.
iPad Programming Guide...
You need to rethink the design, or roll your own tabs (but apple would quite possibly reject anything like that).