I have UITableViewController (its name is News) and UIViewController (its name is DetailViewController) and UISplitViewController. I want it to show a back button when I use an iPad in portrait orientation. I made the button but I cannot name it. I wrote following code
detailController.navigationItem.leftBarButtonItem = self.splitViewController?.displayModeButtonItem()
detailController.navigationItem.leftItemsSupplementBackButton = true
detailController.navigationItem.leftBarButtonItem?.title = navigationController?.topViewController.title
But it doesn't show the name of the button. I see only the arrow (the arrow works).
I also tried the following in my UITableViewController(News) but it didn't help me
I use two segues for different devices with this code.
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath){
var screen = UIScreen.mainScreen().currentMode?.size.height
if (UIDevice.currentDevice().userInterfaceIdiom == UIUserInterfaceIdiom.Pad) || screen >= 2000 && UIDevice.currentDevice().orientation.isLandscape == true && (UIDevice.currentDevice().userInterfaceIdiom == .Phone){
performSegueWithIdentifier("showDetailParse", sender: nil)
self.dismissViewControllerAnimated(true, completion: nil)
} else if (UIDevice.currentDevice().userInterfaceIdiom == .Phone) {
performSegueWithIdentifier("showParse", sender: nil)
}
}
My result on an iPad
My result on an iPhone
Thanks to Paul Hegarty and his invaluable lectures at Stanford University and available on iTunes U... in this case his 2013 lectures under the title "Developing iOS 7 Apps for iPhone and iPad" and specifically "Lecture 11 Table View and the iPad".
If you're using storyboards, then:
Open your main storyboard and select the Navigation Controller that links to the Master View Controller in your Split View Controller group;
Open the Inspector;
Under the heading View Controller, against the property Title, enter the words that you would like to appear alongside the "Back" button chevron.
See screenshot of Master Detail Xcode template set up with a Split View Controller...
If you're instantiating views in code, then:
obtain a reference to the Navigation Controller for the Master View controller;
set the title property of that Navigation Controller with the NSString of words that you would like to appear alongside the "Back" button chevron.
As an aside, I would highly recommend implementation of Auto Layout and Size Classes, that you remove the text for the Back Button property and let size classes determine the appropriate words for your Back Button.
For example, as per the question...
The Solution:
Here is the way to fix the issue with the detail view controller's back button:
For any view controller that gets pushed onto the primary navigation controller's stack, set that view controller's title. (Either in its viewDidLoad: method or in the pushing view controller's prepareForSegue:sender: method.)
Set the primary navigation controller's title in the child view controller's viewDidLoad: method.
For example, in MasterViewController.m:
- (void)viewDidLoad {
[super viewDidLoad];
[self setTitle:#"Foo"];
}
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[[self navigationController] setTitle:[self title]];
}
This will keep the detail view controller's back button title in sync with the top primary view controller's title.
What Is Going On:
UINavigationController, its rootViewController, and UINavigationItem each have a title property.
Note that the back button shown for a current view controller is actually the previous view controller's backButtonItem. (See Figure 1-7 Navigation bar structure)
A UINavigationController will automatically inherit the value of the title of its root view controller, but will not automatically inherit the title of any other controller that gets pushed onto its stack. This is why, by default, the back button of the detail view controller will always show the title of the primary navigation controller's root view controller. You might allocate, initialize, and push multiple child view controllers, but only one navigation controller is allocated and initialized for each side of a standard split view controller.
Additionally, a view controller's navigationItem's title property (whose value will appear in the label in the center of the navigation bar) does not inherit its value from the navigation controller, but from the view controller itself. If you set the view controller's title property to "Bar", and the containing navigation controller's title to "Foo", the label displayed in the center of the navigation bar will say "Bar".
Related
I want to make a custom side bar by adding a new view to the view controller, the side bar will be in the yellow color background. I want my side bar also to overlap the navigation bar/item (green background color) in my view controller. but the navigation bar/item seems can't be overlapped by my side bar view, it seems only overlap the main view.
I tried to find the answer in stackoverflow, I find this Overlap navigation bar on ios 6 with other view, but the answer is on the Objective-C, I can't read Objective-C :(
What should I do to overlap navigation bar/item ? here is the screenshot of my view controller
I embed the navigation controller like this
There are plenty of implementations of slide-over or drawer containers.
What you need to do to get above the navigation bar is CONTAIN the navigation controller inside another view controller.
The stack would look like this.
MasterViewController
UINavigationController
RootViewController
Menu
See this one here:
Swift version of MMDrawerController
You can do this by changing your UIViewController hierarchy. For this you'll need three view controllers. First will contain everything, let's call it MasterViewController; second—your main content with navigation bar; and third—drawer.
In MasterViewController instantiate child view controllers and add them to your view controller hierarchy in viewDidLoad().
final class MasterViewController: UIViewController {
override func viewDidLoad() {
let drawerViewController = DrawerViewController()
let mainViewController = MainContentViewController()
let navigationController = UINavigationController(rootViewController: mainViewController)
addChildViewController(drawerViewController)
addChildViewController(navigationController)
view.addSubview(navigationController.view)
view.addSubview(drawerViewController.view)
}
}
Now you have navigationController.view that you can place or animate anywhere within view.
I am trying to implement a navigation bar whose contents persist between different view controllers. For example, I have the following functionality right now:
Non Persistent Navigation Bar
I have set an imageView as the titleView of the navigation bar.
The titleView of the navigation bar transitions along with the view controller here (the image shows some animations by fading in and out). But I would like it to stay hooked onto the top of every screen without any transitions. This would mean that only the part of the view below the navigation bar would show the transition from one view controller to another.
Is that possible in Swift?
Yea that is possible. What you can do is have a container view controller, which can have your navigation bar along with a content view controller.
Now each time you open a new VC, push the new VC on the containerVC's contentVC.
For ex:
let containerVC = self.parentViewController?.containerViewController()
if let _ = containerVC {
containerVC.pushContentViewController(newViewController)
}
Attaching layout screenshot for more understanding.
So if you check here, the Root Container is the view where you can add your new VC as a child VC.
You can do this by changing your UIViewController hierarchy. For this you'll need three view controllers. First will own your UINavigationBar and UIView where other two UIViewController's views will live.
Let's call one with the navigation bar MasterViewController, and other two—ViewControllerA, ViewControllerB respectively.
Somewhere in MasterViewController instantiate child view controllers and add them to your view controller hierarchy. For simplicity's sake let's do everything in viewDidLoad() but you can do do this anywhere you deem it necessary. You could even load view controllers lazily as user demands them.
final class ViewControllerA: UIViewController { }
final class ViewControllerB: UIViewController { }
final class MasterViewController: UIViewController {
var navigationBar = UINavigationBar()
override func viewDidLoad() {
view.addSubview(navigationBar)
let a = ViewControllerA()
let b = ViewControllerB()
addChildViewController(a)
addChildViewController(b)
view.addSubview(a.view)
// you are ready for transitions from a.view to b.view when necessary
}
}
Now you can do transitions from a.view to b.view (and back) and it will affect nothing in master view (which has the navigationBar).
It is important to note that view hierarchy and view controller hierarchy are not liked in any way and you are responsible for managing both.
I have one view controller called homeviewcontroller. In that i placed one right bar button item And i have added one uiview under that bar button item. when i click my bar button item it will show the uiview.In that uiview i have two button option.
A view controller
B view controller
I also create a two view controller with story board identifier. Avc , Bvc. So what i need is. When i click the buttons in my UIVIEW that respective A Viewcontroller or B viewcontroller should show in my `home Viewcontroller'. I have that two button action like this:
- (IBAction)ButtonONEClicked:(id)sender {
}
- (IBAction)ButtonTwoClicked:(id)sender {
}
How can i code that to show that two A Viewconroller and B viewcontroller in my homeViewcontroller.Here is my image of that uiview placed in my HomeViewcontroller
Please help me how to do that.Thanks
have you used container view controller -
if not so here -
1.https://developer.apple.com/library/ios/featuredarticles/ViewControllerPGforiPhoneOS/ImplementingaContainerViewController.html
Best Tutorial - a.https://spin.atomicobject.com/2015/07/21/ios-container-views/
b.http://www.thinkandbuild.it/working-with-custom-container-view-controllers/
Swift version - https://github.com/codepath/ios_guides/wiki/Container-View-Controllers-Quickstart
Since there is no complete, definitive answer to this common recurring question, I'll ask and answer it here.
Often we need to present a UIViewController such that it doesn't cover full screen, as in the picture below.
Apple provides several similar UIViewController, such as UIAlertView, Twitter or Facebook share view controller, etc..
How can we achieve this effect for a custom controller?
NOTE : This solution is broken in iOS 8. I will post new solution ASAP.
I am going to answer here using storyboard but it is also possible without storyboard.
Init: Create two UIViewController in storyboard.
lets say FirstViewController which is normal and SecondViewController which will be the popup.
Modal Segue: Put UIButton in FirstViewController and create a segue on this UIButton to SecondViewController as modal segue.
Make Transparent: Now select UIView (UIView Which is created by default with UIViewController) of SecondViewController and change its background color to clear color.
Make background Dim: Add an UIImageView in SecondViewController which covers whole screen and sets its image to some dimmed semi transparent image. You can get a sample from here : UIAlertView Background Image
Display Design: Now add an UIView and make any kind of design you want to show. Here is a screenshot of my storyboard
Here I have add segue on login button which open SecondViewController as popup to ask username and password
Important: Now that main step. We want that SecondViewController doesn't hide FirstViewController completely. We have set clear color but this is not enough. By default it adds black behind model presentation so we have to add one line of code in viewDidLoad of FirstViewController. You can add it at another place also but it should run before segue.
[self setModalPresentationStyle:UIModalPresentationCurrentContext];
Dismiss: When to dismiss depends on your use case. This is a modal presentation so to dismiss we do what we do for modal presentation:
[self dismissViewControllerAnimated:YES completion:Nil];
Thats all.....
Any kind of suggestion and comment are welcome.
Demo :
You can get demo source project from Here : Popup Demo
NEW : Someone have done very nice job on this concept : MZFormSheetController
New : I found one more code to get this kind of function : KLCPopup
iOS 8 Update : I made this method to work with both iOS 7 and iOS 8
+ (void)setPresentationStyleForSelfController:(UIViewController *)selfController presentingController:(UIViewController *)presentingController
{
if (iOSVersion >= 8.0)
{
presentingController.providesPresentationContextTransitionStyle = YES;
presentingController.definesPresentationContext = YES;
[presentingController setModalPresentationStyle:UIModalPresentationOverCurrentContext];
}
else
{
[selfController setModalPresentationStyle:UIModalPresentationCurrentContext];
[selfController.navigationController setModalPresentationStyle:UIModalPresentationCurrentContext];
}
}
Can use this method inside prepareForSegue deligate like this
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
PopUpViewController *popup = segue.destinationViewController;
[self setPresentationStyleForSelfController:self presentingController:popup]
}
Modal Popups in Interface Builder (Storyboards)
Step 1
On the ViewController you want as your modal popup, make the background color of the root UIView clear.
Tip: Do not use the root UIView as your popup. Add a new UIView that is smaller to be your popup.
Step 2
Create a Segue to the ViewController that has your popup. Select "Present Modally".
Two Methods To Create Popup From Here
Method One - Using the Segue
Select the Segue and change Presentation to "Over Current Context":
Method Two - Using the View Controller
Select the ViewController Scene that is your popup. In Attributes Inspector, under View Controller section, set Presentation to "Over Current Context":
Either method will work. That should do it!
You can do this in Interface Builder.
For the view you wish to present modally set its outermost view background to transparent
Control + click and drag from the host view controller to the modal view controller
Select present modally
Click on the newly created segue and in the Attribute Inspector (on the right) set "Presentation" to "Over Current Context"
Feel free to use my form sheet controller MZFormSheetControllerfor iPhone, in example project there are many examples on how to present modal view controller which will not cover full window and has many presentation/transition styles.
You can also try newest version of MZFormSheetController which is called MZFormSheetPresentationController and have a lot of more features.
You can use EzPopup (https://github.com/huynguyencong/EzPopup), it is a Swift pod and very easy to use:
// init YourViewController
let contentVC = ...
// Init popup view controller with content is your content view controller
let popupVC = PopupViewController(contentController: contentVC, popupWidth: 100, popupHeight: 200)
// show it by call present(_ , animated:) method from a current UIViewController
present(popupVC, animated: true)
Imao put UIImageView on background is not the best idea . In my case i added on controller view other 2 views . First view has [UIColor clearColor] on background, second - color which u want to be transparent (grey in my case).Note that order is important.Then for second view set alpha 0.5(alpha >=0 <=1).Added this to lines in prepareForSegue
infoVC.providesPresentationContextTransitionStyle = YES;
infoVC.definesPresentationContext = YES;
And thats all.
Swift 4:
To add an overlay, or the popup view
You can also use the Container View with which you get a free View Controller ( you get the Container View from the usual object palette/library)
Steps:
Have a View (ViewForContainer in the pic) that holds this Container View, to dim it when the contents of Container View are displayed. Connect the outlet inside the first View Controller
Hide this View when 1st VC loads
Unhide when Button is clicked
To dim this View when the Container View content is displayed, set the Views Background to Black and opacity to 30%
You will get this effect when you click on the Button
You can do this to add any other subview to the view controller.
First set the status bar to None for the ViewController which you want to add as subview so that you can resize to whatever you want. Then create a button in Present View controller and a method for button click. In the method:
- (IBAction)btnLogin:(id)sender {
SubView *sub = [[SubView alloc] initWithNibName:#"SubView" bundle:nil];
sub.view.frame = CGRectMake(20, 100, sub.view.frame.size.width, sub.view.frame.size.height);
[self.view addSubview:sub.view];
}
Hope this helps, feel free to ask if any queries...
I have a container view controller that consists of a navigation view at top, and a content view for the remainder of the screen. The navigation menu consists of several buttons, some of which present a popover with UITableView for secondary navigation. This all worked until I assigned a child view controller and set it's view as subview of the content view. Now, the popover appears, but has nothing inside it (no tableview, just black).
Why is this?
Here's the code I added for the child vc in container view:
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
ContentWebViewController *initialVC = [[ContentWebViewController alloc] init];
[self addChildViewController:initialVC];
initialVC.view.frame = self.view.bounds;
[self.containerView addSubview:initialVC.view];
self.currentController = initial;
}
See the screenshot below. I added a vc with a simple webview showing google (just as a placeholder for now). The popover was working fine before I assigned the child VC.
Maybe it will help other in other cases -
If you are using size classes (probably you are since you are developing this to iPad) -
Design your popover view controller in Any-Any size and it should be OK - after that you can return to your wanted size.
(You can also uninstall the size classes of any object in that view controller instead of redesign the VC)
I somehow (don't ask me how) changed the class that my table view controller was inheriting from. It should have been (obviously) UITableViewController, but was UITableViewController, so initWithStyle was not being called....