I have a form design by xib file. In form have a button "Done". I want when click done button, it will forward to my view controller.
I tried code like this:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main.storyboard" bundle:nil];
CommentViewController *myVC = (CommentViewController *)[storyboard instantiateViewControllerWithIdentifier:#"Comment"];
[self presentModalViewController:myVC animated:YES];
But error at "presentModelViewController".
" No visible #interface for 'my form' declares the selector 'presentModalViewController'...
If self is UINavigationController, use this:
[self.navigationController pushViewController:yourViewController animated:YES];
If self is UIViewController, use this:
[self presentModalViewController:yourViewController animated:YES];
Note that: presentModalViewController: animated: is deprecated now.
The problem is that self is not a UIViewController. So you can't send presentModalViewController to self. Send it to a view controller!
UIStoryboard *loStoryboard ;
loStoryboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil]; // Here only "Main" not "Main.storyboard".
// Instantiate the initial view controller object from the storyboard
UIViewController *initialViewController = [loStoryboard instantiateInitialViewController];
// Instantiate a UIWindow object and initialize it with the screen size of the iOS device
self.view = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Set the initial view controller to be the root view controller of the window object
[self.navigationController pushViewController:initialViewController animated:YES];
Related
I created a SingleView application then use "Embed In Navigation Controller" to get a navigation control.
when push a controller, the viewcontroller's backgroundColor is black.
i know use this code :
UIStoryboard * storyBoard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];//UIStoryboard(name: "Main", bundle:nil)
UIViewController *roomController = [storyBoard instantiateViewControllerWithIdentifier:#"controlerID"];
but what's the reason ?
and if i don't want to use the storyboard completely ,only use this code
UIViewController *roomController = [[UIViewController alloc]init];
what can i do? is only set the viewcontroller's backgroundColor?
You need to use the instantiateViewControllerWithIdentifier: method of your UIStoryboard instance and then you can push the controller.
UIStoryboard *storyboard =[UIStoryboard storyboardWithName:#"Main" bundle:nil];
UIViewController *roomController = [storyboard instantiateViewControllerWithIdentifier:#"controlerID"];
[self.navigationController pushViewController: roomController animated:YES];
// if You make controller with out storyboard Than change You view color
UIViewController *roomController = [[UIViewController alloc]init];
[self.navigationController pushViewController: roomController animated:YES];
- (void)viewDidLoad
{
self.view.backgroundColor =[UIColor whiteColor];
}
I need to present a view controller from app delegate.
When a phone notification comes in, I am able to decide which one of 3 view controllers (named ForumViewController, BlogViewController & NewsViewController) should be presented by analyzing the 'userInfo' in the method 'didReceiveRemoteNotification'.
But when i try to present the appropriate view controller using storyboards or the code below:
self.viewController = [[MembersViewController alloc] initWithNibName:#"MembersViewController" bundle:nil];
self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
Then, the app gives the error 'Warning: Attempt to present whose view is not in the window hierarchy!'. Also it gets stuck on a particular view controller.
Please keep in mind that the view controllers that I am trying to present are not part of the flow when the app starts (the flow is LogoViewController -> SplashViewController -> HomeViewController).
The HomeViewController & MembersViewController are essentially the main menu pages for public & private viewing. Here I have to display something to the viewer.
choice-1
using push
UINavigationController *navController = (UINavigationController *)self.window.rootViewController;
MembersViewController *vc = [navController.storyboard instantiateViewControllerWithIdentifier:#"MembersViewController"];
[navController pushViewController:vc animated:YES];
using present
MembersViewController *root = (MembersViewController *)self.window.rootViewController;
UIViewController *vc = [root.storyboard instantiateViewControllerWithIdentifier:#"MembersViewController"];
[root presentViewController:vc animated:YES completion:NULL];
upadted
UIStoryboard *mainstoryboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
MembersViewController* pvc = [mainstoryboard instantiateViewControllerWithIdentifier:#"MembersViewController"];
[self.window.rootViewController presentViewController:pvc animated:YES completion:NULL];
Loading a view controller from the storyboard:
[self performSelector: #selector(ShowModalViewController) withObject: nil afterDelay: 0];
-(void)ShowModalViewController{
NSString * storyboardName = #"MainStoryboard";
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:storyboardName bundle: nil];
UIViewController * vc = [storyboard instantiateViewControllerWithIdentifier:#"IDENTIFIER_OF_YOUR_VIEWCONTROLLER"];
[self.window.rootViewController presentViewController:vc animated:YES completion:nil];
}
Identifier of your view controller is either equal to the class name of your view controller, or a Storyboard ID that you can assign in the identity inspector of your storyboard.
i am using UINavigationController but when i push a view controller just simply by making object of the class the class load but not the components in it.
this is my AppDelegate.m
UIStoryboard *sb = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
ViewController *vc = [sb instantiateInitialViewController];
UINavigationController *nav = [[UINavigationController alloc] init];
self.window.rootViewController = nav;
nav.viewControllers = #[vc];
and my first UIViewController if action button code is
NextView *next = [[NextView alloc] init];
[self.navigationController pushViewController:next animated:YES ];
it gets to next UIViewController but no internal components are loaded such as - button,textfield,etc.
and if i try this code it give me runtime error
UIStoryboard *sb = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
NextView *next = [sb instantiateViewControllerWithIdentifier:#"two"];
[self.navigationController pushViewController:next animated:YES ];
make sure that NextView inherit UIViewController and you have given identifier as two to that view controller and you have set class NextView from identity inspector to that viewcontroller.
Hope this will help :)
You could not get outlets (buttons etc.) to be loaded with alloc init in the subclass of UIViewController. You should init it with the xib file, using -initWithNibName:bundle: method. Or you can instantiate it with storyboard.
// You can get current storyboard from the View Controller
UIStoryboard *sb = vc.storyboard;
NextView *next = [sb instantiateViewControllerWithIdentifier:#"two"];
[self.navigationController pushViewController:next animated:YES];
I added one ViewController to my project and created one class.
After I bind this class to my ViewController.
In another controller I have method:
- (IBAction)login:(id)sender {
// How here I can do redirect to controllerViewController
}
There are two ways to push view controllers in the application.
1) by Segue
2) By View controller identifier
1) By Segue :
[self performSegueWithIdentifier:"SegueIdentifier" sender:self];
2) By View controller identifier :
Yourclassname *gotoYourClass = [self.storyboard instantiateViewControllerWithIdentifier:#"ViewControllerIdentifier"];
[self.navigationController pushViewController:gotoYourClass animated:YES];
- (IBAction)login:(id)sender {
ViewController *vc = [[ViewController alloc]initWithNibName:#"ViewController" bundle:nil];
[self presentViewController:vc animated:YES completion:nil]; }
In the storyboard give your view controller an identifier (under the Attributes Inspector) then use the following code, to bring that view forward.
IF YOU WANT TO USE PUSH THEN USE THIS CODE
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"STORYBOARDNAME" bundle:nil];
UIViewController *vc = [mainStoryboard instantiateViewControllerWithIdentifier:#"VIEWCONTROLLERIDENTIFIER"];
[self.navigationController pushViewController:vc animeted:YES];
IF YOU WANT TO PRESENT THEN USE THIS CODE
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"STORYBOARDNAME" bundle:nil];
UIViewController *vc = [mainStoryboard instantiateViewControllerWithIdentifier:#"VIEWCONTROLLERIDENTIFIER"];
[self presentModalViewController:vc animated:YES];
Note: In UIViewController please enter your view controller name which you want to push into another view.
If you want to comeback to the current ViewController later then use Navigation ViewController or else just use the presentedViewController of self(your current viewController)- no going back business, like they have previously illustrated.
For a simple block of execution(demo or practice) it's all the same but for a project application it completely matters to make the correct choice.
I am currently using ViewDeck with Storyboards, and have the following setup in the application didFinishLaunchingWithOptions:
//View Deck Setup
UIStoryboard* mainStoryboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle: nil];
UIViewController* menuController = [mainStoryboard instantiateViewControllerWithIdentifier:#"LeftSideMenu"];
UINavigationController* navigationController = (UINavigationController *) self.window.rootViewController;
self.viewDeckController = [[IIViewDeckController alloc] initWithCenterViewController:navigationController leftViewController:menuController rightViewController:nil];
self.window.rootViewController = self.viewDeckController;
However, when I am setting a new CenterController from my MenuViewController, the navigation bar is removed, even if loading the same center view controller as I was previously looking at.
- (IBAction)viewUsers:(UIButton *)sender
{
UIStoryboard* mainStoryboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle: nil];
UIViewController* viewController = [mainStoryboard instantiateViewControllerWithIdentifier:#"middleViewController"];
[self.viewDeckController setCenterController:viewController];
[self.viewDeckController closeLeftView];
}
What am I doing incorrectly?
The solution is remove any "deck constructor" class between AppDelegate and you TabBar. When you need to set or change Deck structure I create a several methods for each one structure. For example, if you want Deck has "leftView" view controller in left side, "rightView" in the right and "tabBarHome" in center, create a method like this in App Delegate:
-(void) lanzarHome{
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
IIViewDeckController* deckController =[[IIViewDeckController alloc] initWithCenterViewController:[storyboard instantiateViewControllerWithIdentifier:#"tabBarHome"]
leftViewController:[storyboard instantiateViewControllerWithIdentifier:#"leftView"]
rightViewController:[storyboard instantiateViewControllerWithIdentifier:#"rightView"]];
deckController.leftSize = 100;
self.window.rootViewController = deckController;
[self.window makeKeyAndVisible];
}
Now, you must call this method from your viewController with sentence like this:
[((VKAppDelegate*) [[UIApplication sharedApplication] delegate]) lanzarHome];
The most important think is that create the method that changes or inits Deck structure from AppDelegate and never you have another class or viewController between delegate and center TabBar.
I hope this answer solve your issue. For me was a very hard work to find out this issue.