I've got a problem concerning Navigationcontroller in AppDelegate. I'm using a storyboard, which looks like this:
As a result of using Push notifications, i've got the following function in my AppDelegate File:
- (void)application:(UIApplication *)application didReceiveRemoteNotification:(NSDictionary *)userInfo {
//...
}
When the notification arrives I want to initialize the "Detail View" - Controller which needs an ID as a parameter. This ID is part of my payload so it is present in didReceiveRemoteNotification.
I'd like to to the follwing:
DetailView *detail = [storyboard instantiateViewControllerWithIdentifier:#"detail"];
detail.conversationID = theID;
[self.navigationController pushViewController:detail animated:YES];
My question at this point is: how can I get the navigation controller? I've searched for a function like "getNavigationControllerByIdentifier" or something like this, but found nothing. I can't instantiate the Detail View Controller directly because the navigationbar is missing there.
I hope you understand what I mean - if you think my approach is completly wrong please correct me ;o)
Just another small information: It's not important for me that the back button in the Detail View Controller goes back to the Table View - it's enough when it links to the controller with the button "Load Table View".
Thank you for help!
UINavigationController is a UIViewController subclass and can also be assigned an identifier in the storyboard.
Use -instantiateViewControllerWithIdentifier: to create the UINavigationController and it's root view controller. You may need to instantiate all of the intermediate controllers in code and modify the navigation controller's viewControllers property to set up the appropriate navigation stack. This way when the app launches into the detail view, they can find their way back as if they had manually pushed all the way through via the interface.
You can use rootViewController on your window object.
UIViewController *rootViewController = self.window.rootViewController;
// You now have in rootViewController the view with your "Hello world" label and go button.
// Get the navigation controller of this view controller with:
UINavigationController *navigationController = rootViewController.navigationController;
// You can now use it to push your next view controller:
DetailViewController *detail = [navigationController.storyboard instantiateViewControllerWithIdentifier:#"detail"];
detail.conversationID = theID;
[navigationController pushViewController:detailViewController animated:YES];
Related
I embedded tableviewcontroller into a navigation controller, set the title, but it does not show when I run the app.
What is wrong?
This is the setting of the tableviewcontroller
Here is the setting of the navigation controller
First check, your NavVC must be initial VC.
If not then try this piece of code
-(void) viewWillAppear:(BOOL)animated {
[[self navigationController] setNavigationBarHidden:NO animated:YES];
}
you must be presenting the plain table view instead of navigation controller. What you need to do is make you tableview as root view for a navigation controller and present the navigation controller.
var nav: UINavigationController = UINavigationController(rootViewController: vc)
//then present the nav
Change the initial VC from Navigation Controller to your TableViewController
I did not set the StoryboardId for Navigation controller.
i have two view controllers TestViewController and SecondViewController.
i also have corresponding views TestView and SecondView corresponding to them.
please guide me with the steps to push data from one view Controller to another without using Segues.
you can use Segues it is very easy to work with. You can use method inside your objective-c code:
for example:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
// Make sure your segue name in storyboard is the same as this line
if ([[segue identifier] isEqualToString:#"YOUR_SEGUE_NAME_HERE"])
{
// Get reference to the destination view controller
YourViewController *vc = [segue destinationViewController];
// Pass any objects to the view controller here, like...
[vc setMyObjectHere:object];
}
}
In the link above you have all the explanation how to it... :) hope it helps.
I am trying to use a SWrevealViewController for sidemenu . One of the options on it is "User Profile" . Since I access user's profile from various other views , I would like to have to have a push segue to this VC. However , a push segue is not working from SWRevealViewController to UserProfileVC.
Can anyone suggest how I may use a push sugue from SWRevealVC?
Here's my solution:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle: nil]
UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:#"YOUR_VC_STORYBOARD_ID"];
SWRevealViewControllerSeguePushController *segue = [[SWRevealViewControllerSeguePushController alloc] initWithIdentifier:#"ANY_ID" source:self destination:vc];
[segue perform];
Swift version will be
let vc = self.storyboard?.instantiateViewControllerWithIdentifier("LoginRoot") as! UINavigationController
let segue = SWRevealViewControllerSeguePushController.init(identifier: SWSegueRearIdentifier, source: self, destination: vc)
segue.perform()
Navigation controller is UIViewcontroller. i used navigation controller otherwise use UIViewController object.
Create a custom segue from your Reveal View Controller to your side menu view controller using the storyboard editor. Set the identifier as "sw_rear", kind as "Custom" and class as "SWRevealViewControllerSegueSetController".
With this, if you create ordinary "push" segues from your menu view controller to other view controllers they should be pushed normally.
Is there a way to change the "parent" of a view controller so you can specify which view controller the back button will segue to without creating a custom back button?
Or is the only way to create a custom back button with a custom action?
If you have access to the navigation controller, you could manually insert a view controller in to its stack of view controllers [self.navigationController setViewControllers:] before the current view controller. That would allow the navigation controller to perform its regular actions yet still navigate back to your desired view controller.
Try To create a custom button like
UIBarButtonItem * buttonBack = [[UIBarButtonItem alloc] initWithImage:[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:#"Back" ofType:#"png"]] style:UIBarButtonItemStylePlain target:self action:#selector(onBackClick:)];
[self.navigationItem setLeftBarButtonItems:#[buttonBack] animated:YES];
and make a method..
- (IBAction)onBackClick:(id)sender
{
// your code
// Write your code what you want to do...
}
I'm making an application with xcode, and I have a trouble with passing data between views.
I want to set in detail view, a date of a calendar. Then when I go back to the master view I want to see the events in the selected date, but I don`t know how I make it.
Can you help me?
this is how you can communicate between 2 class
ViewController *dvController = [[ViewController alloc] initWithNibName:#"ViewController" bundle:[NSBundle mainBundle]];
// ViewController is controler where you want to send date from particular controler we are making object of ViewController where you want to send data
dvController.selectedBirthdate = selectedbirthdate;
dvController.selectedName = selectedname;
//you are sending data in above two lines just imagine you are sending string
[self.navigationController pushViewController:dvController animated:YES];
//then pushviewcontroller and there you go
[dvController release];
simple as that
there is another way to comunicate between 2 classes is that app delegate make object of you app delegate and then assing what you want to particular varible of app delegate and then you can use that variable anywhere in project
create app delegate object like this
YourAppDelegate *appDelegate = (YourAppDelegate *)[[UIApplication sharedApplication] delegate];
//and then access the variable by appDelegate.variable
if you are using storyboard then you can use prepareForSegue like below
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if ([segue.identifier isEqualToString:...]) {
MyViewController *controller = (MyViewController *)segue.destinationViewController;
controller.myProperty1 = ...;
controller.myProperty2 = ...;
}
}
There are basically two most common approaches:
1) use unwind segue if you're using storyboard in the project. The approach is perfectly discussed here:
http://developer.apple.com/library/ios/#documentation/iPhone/Conceptual/SecondiOSAppTutorial/CreatingAddView/CreatingAddView.html
2) use delegate pattern. I found the below tutorial quite useful when I had started to learn delegation:
http://www.roostersoftstudios.com/2011/04/12/simple-delegate-tutorial-for-ios-development/