My main menu (a ViewController) is embedded in a NavigationController that I added in the storyboard in Xcode4.
I have a button in my menu, displaying a new view. To display it I use :
- (IBAction) display : (id) sender
{
if(!anotherView) anotherView = [[AnotherView alloc] initWithNibName:#"AnotherView" bundle:nil];
[self presentModalViewController:anotherView animated:NO];
}
My other view is correctly displayed with all its objects and elements. Excluding my NavigationController's bar, that doesn't appear. Why ?
Thanks for your advices
You are presenting the view modally what you probably meant was
[self.navigationController pushViewController:anotherView animated:YES]
of course what you really want to do is not mix and match storyboard and non storyboard flows unnecessarily like this and have the storyboard do this for you
you are presenting your viewController modally. If you want to use the navigation controller you have to push your view onto the navigation stack.
replace
[self presentModalViewController:anotherView animated:NO];
with
[self.navigationController pushViewController:anotherViewController animated:YES];
You can still present your view modally without losing the navigation bar. Try this code:
AnotherView *tempAnotherView = [[AnotherView alloc] initWithNibName:#"AnotherView" bundle:nil];
[self setAnotherView:tempAnotherView];
[tempAnotherView release];
UINavigationController *navController = [[[UINavigationController alloc] initWithRootViewController:self.anotherView] autorelease];
[self.navigationController presentModalViewController:navController animated:YES];
Hope it helps! :)
Related
I have an app that uses only xibs, no storyboards.
I have created a prompt xib that I would like to present modally (with the modal animation) from a table view controller xib (named TVC.xib) The TVC is nested in a navigation controller.
I can get the prompt to present itself, but I want it to present itself with a modal animation. Unfortunately, the presentModalViewController has been deprecated. What is the current option to present a view controller modally in code and have it animate the same way that modal presentations used to animate?
Here is my code: (in the TVC.m)
PromptViewController *promptVC = [[PromptViewController alloc] initWithNibName:#"PromptXib" bundle:nil];
UINavigationController *navVC = [[UINavigationController alloc] initWithRootViewController:promptVC];
[self.navigationController presentViewController:navVC animated:YES completion:^{
NSLog(#"presented prompt vc");
}];
Ideally I could replace the method in the 3rd line with self.navigationController presentMODALViewController... etc, but it's deprecated.
You are looking for:
[self presentViewController:aViewController animated:animated completion:^{}];
But you should browse some tutorials to update the knowledge.
I've figured it out. I needed to set the transition style and presentation style on the view controller that I wanted to show. Here is my solution:
PromptViewController *promptVC = [[PromptViewController alloc] initWithNibName:#"PromptXib" bundle:nil];
promptVC.modalTransitionStyle = UIModalTransitionStyleCoverVertical;
promptVC.modalPresentationStyle = UIModalPresentationFullScreen;
[self presentViewController:promptVC animated:YES completion:nil];
I'm using a UIScrollView to display some images, and i need to present or push another view when the user selects one part of the image.This ScrollView is created only programmatically.
How i can programmatically add a navigationController to it and present another view?
I tried this way but just give me the following error :
Pushing a navigation controller is not supported'
StatesViewController * controller = [[StatesViewController alloc]initWithNibName:#"StatesViewController" bundle:nil];
UINavigationController * Navcontroller = [[UINavigationController alloc] initWithRootViewController:controller];
[self presentModalViewController: Navcontroller animated: YES];
this might help you.
NextViewController *nextViewController=[[NextViewController alloc]initWithNibName:#"NextViewController" bundle:nil];
UINavigationController *navBar=[[UINavigationController alloc]initWithRootViewController:nextViewController];
[self.navigationController presentModalViewController:navBar animated:YES];
current version of my project :
I have 5 different UIViewControllers in my app. I've set my
FirstViewController to be the Initial View Controller using the
Attributes Inspector. I move back and forth from one ViewController to
another by using buttons to which I assign modal segues, from one
ViewController to another, using the StoryBoard
What I want to change:
I want to keep the navigation buttons obviously, delete the modal segues and use
a UINavigationController instead. If I understand the concept
correctly, when using a UINavigationController I need to go into each
UIButton-IBAction and at the very end of the method I have to push the next
ViewController I want to move to, onto my NavigationController (do I also
have to pop the current one first?). However, I can't figure out how
to implement all that correctly.
What I've done so far:
I removed all modal segues from the storyboard and kept the navigation buttons along with their corresponding IBActions
I unchecked the box in the Attributes Inspector that was making my FirstViewController the initial View Controller of my app
I went into my AppDelegate.m and tried to create the Navigation Controller there and make my FirstViewController be the RootViewController
MyAppDelegate.m
-(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIViewController *myFirstViewController = [[FirstViewController alloc] init];
UINavigationController *myNavigationController = [[UINavigationController alloc] initWithRootViewController:myFirstViewController];
[myNavigationController pushViewController:myFirstViewController animated:YES];
// Override point for customization after application launch.
return YES;
}
I then tried to test if the above was working by going into the IBAction of a
navigation button on my FirstViewController and implemented the
following in order to move to my SecondViewController when the
button is pressed :
FirstViewController.m
- (IBAction)goRightButton:(UIButton *)sender
{
// some code drawing the ButtonIsPressed UIImageView on the current View Controller
UIViewController *mySecondViewController = [[SecondViewController alloc] init];
[self.navigationController pushViewController:mySecondViewController animated:YES];
}
but nothing happens. What am I doing wrong ?
You are not linking your XIB file. Please add your navigation controller as
UIViewController *myFirstViewController = [[FirstViewController alloc] initWithNibName:#"FirstViewController" bundle:nil];
navigationController = [[UINavigationController alloc] initWithRootViewController:myFirstViewController];
Use following code to move from one view to another
UIViewController *mySecondViewController = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
[self.navigationController pushViewController:mySecondViewController animated:YES];
If you are using a storyboard, you should just drag in the navigation controller there and hook it up to your app delegates. As long as it is the main storyboard, and you have identified a view controller to load first, you do not need to load any views in your app delegate.
In order to push a view programmatically that's in a storyboard, you need to do something like the following:
//bundle can be nil if in main bundle, which is default
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"MainStoryboard" bundle:nil];
MyCustomViewController *customVC = (MyCustomViewController *)[mainStoryboard instantiateViewControllerWithIdentifier:#"customVC"];
//standard way
[self.navigationController pushViewController:customVC animated:YES];
//custom animation
[UIView transitionWithView:self.navigationController.view duration:0.5 options:UIViewAnimationOptionTransitionCurlUp animations:^{
[self.navigationController pushViewController:customVC animated:NO];
} completion:nil];
You identify the view controller with the identifier you add in the storyboard editor. Below are some screenshots to help show what I mean.
I have a UINavigationController setup in my AppDelegate:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Add the navigation controller's view to the window and display.
[self.window addSubview:navigationController.view];
[self.window makeKeyAndVisible];
return YES;
}
In my RootViewController I am pushing another view onto the stack:
//Show the deals
DealViewController *dvc = [[DealViewController alloc] initWithNibName:#"DealViewController" bundle:nil];
[self.navigationController.navigationBar setHidden:NO];
[self.navigationController pushViewController:dvc animated:YES];
The view shows up, but there is no back button that is added to my navigation bar. Why is this and how can I resolve it?
Are you setting self.title in RootViewController? Perhaps the UINavigationController doesn't have any text to put on the back button, so it omits it...?
Are you setting hidesBackButton = YES or backBarButtonItem = nil in DealViewController, or does it have a different leftBarButtonItem defined?
Try this:
DetailViewController *detailViewController = [[DetailViewController alloc] init];
UIBarButtonItem *back = [[UIBarButtonItem alloc] initWithTitle : #"Back"
style : UIBarButtonItemStyleDone
target : nil
action : nil];
self.navigationItem.backBarButtonItem = back;
[self.navigationController pushViewController : detailViewController animated : YES];
[detailViewController release];
You must think of the navigation controller as a stack of navigation controllers each controlling one screen full of information.
You instantiate the navigation controller with the
-(id)initWithRootViewController:(UIViewController *)rootViewController
method. You specify the root view controller in this call. Then you add the navigation controller's view as a subview to the window, like you did before.
If you want to show your second screen you push another view controller on the stack by using
-(void)pushViewController:detailViewController animated:YES
method.
Using presentModalViewController to show the naviagtionController. Set the navagitionController bar button like so:
[navigationController.navigationBar.topItem setLeftBarButtonItem:
[[[UIBarButtonItem alloc] initWithTitle: #"Back"
style: UIBarButtonItemStylePlain
target: self
action: #selector(dismisstheModal:)] autorelease]];
This happened to me because in my navigation controller's content controller I had set up some navigation controller behavior in viewDidLoad and in another class that inherits from my content controller, and the one that was being presented, i implemented a viewDidLoad as well, and forgot to call [super viewDidLoad] which thereby caused me to override the base class's viewDidLoad where I was setting up my navigation controller buttons. Oooops.
I have a view controller that is inside a popover, and I want to present a modal view controller from it. Here's my code:
EditDateViewController *dateViewController = [[EditDateViewController alloc] initWithNibName:#"EditDateViewController" bundle:[NSBundle mainBundle]];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:dateViewController];
navController.modalPresentationStyle = UIModalPresentationCurrentContext;
[self presentModalViewController:navController animated:YES];
[dateViewController release];
[navController release];
The result is this:
alt text http://cl.ly/5300e4f8f5d440d3f850/content
For some reason, the navigation bar background is transparent (or black?) even though I did not configure it that way. I tried manually setting the tintColor property of the navigation bar in the viewDidLoad method of the modal view controller, but it had no effect.
Try this
dateViewController.modalInPopover=YES;
self.navigationController.modalInPopover=YES;