I'm having difficulty in switching between xibs :(
first i was using navigationController and it worked well but i want to do it without using navigationController.
I tried presentModalViewController but it crashes my application. :((
Here is the code :
myViewController *viewController = [myViewController alloc] initWithNibName:nil bundle:nil];
myViewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController: myViewController animated:YES];
[myViewController release];
It is not working, ERROR received :
GDB:Program received signal : "EXC_BAD_ACCESS"
myViewController *viewController = [myViewController alloc] initWithNibName:nil bundle:nil];
viewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController: viewController animated:YES];
this should work. your problem was that you declared a view controller and named it "viewController", but you were not using that. you were using the view controllers name, not the declared instance.
You have set your nibName to nil
Enter the name of your Xib file you want to display there
Like
myViewController *viewController = [[myViewController alloc] initWithNibName:#"nameOfYourXIB" bundle:nil]autorelease];
myViewController.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController: myViewController animated:YES];
remove the release statement from ur code and everything will work fine.
Actually u r releasing the viewcontroller before it is shown as the superview.
//[myViewController release];
Hope this helps u...
Don't release he controller its a global variable i suppose so just make it in nil in dealloc
Related
I have a UIViewController, I want to navigate from this view to my second view controller
SecondView *secondView=[[SecondView alloc] initWithNibName:#"SecondView" bundle:nil];
[self.navigationController pushViewController:secondView animated:YES];
[secondView release];
It doesn't work. It doesn't do anything and there is no error. What I'm missing?
SOLUTION
In Appdelegate file I've added a navigationcontroller.
UINavigationController *navCtrlr = [[UINavigationController alloc]initWithRootViewController:self.viewController];
[self.window setRootViewController:navCtrlr];
navCtrlr.delegate = self;
navCtrlr.navigationBarHidden = YES;
Is your view controller already inside a navigation controller otherwise it wont work. put an NSLog on self.navigationcontroller and see what it is printing
I am trying to navigate from one page to another on a button click in a facebook appliaction.
I am using
registerUser=[[RegisterPage alloc]initWithNibName:#"RegisterPage" bundle:nil];
[self presentModalViewController :registerUser animated:YES];
for presenting the next view after getting response from facebook.
But it is not showing the next view. It works fine in all other places where I used to present other views.
Anyone have idea about this issue?
What exactly is 'self' here? Is it a viewcontroller? Or just a UIView?
I think this'll only work if self is a viewcontroller or some subclass of it.
My code to present a view controller is somewhat like yours (without a nib):
ViewController *controller = [[ViewController alloc] initWithNibName:nil bundle:nil];
[controller setModalTransitionStyle:UIModalTransitionStyleCoverVertical];
[self presentModalViewController:controller animated:YES];
[controller release];
And to present a navigation controller it's like this (without a nib):
ViewController *controller = [[ViewController alloc] initWithNibName:nil bundle:nil];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:controller];
[navController setModalTransitionStyle:UIModalTransitionStyleCoverVertical];
[self presentModalViewController:navController animated:YES];
[navController release];
[controller release];
Sometimes simply copying someones code helps.
thanks for everyones reply.i have solved it after a long fight.i just dismissed the view before pesenting the next view and set dismissmodalviewcontrollerAnimated to NO.[self dismissModalViewControllerAnimated:NO];
nextview = [[LoginPage alloc]initWithNibName:#"LoginPage" bundle:nil];
[self presentModalViewController: nextview animated:YES];hope this help someone like me
I'm trying to use the pushViewController: animated: with a UIViewController. I have it housed in a UINavigationController with initWithRoot and it still doesn't work.
Here is my code? Am I doing something wrong?
CloudappSettingsViewController *cloud = [[CloudappSettingsViewController alloc] initWithNibName:nil bundle:nil];
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:cloud];
[self pushViewController:nav animated:YES];
[cloud release];
It always crashes when it gets up to the [self pushViewController:nav animated:YES];
Any ideas?
Thanks
is "self" a UINavigationController?
It seems you are trying to push the navigation controller, but that is backwards. You should present the navigation controller and push additional views to it.
So the UIView you are in should already be in the nav controller then you would push cloud into that.
If this is in your app delegate, just add the UINavigationController as a subview to your app's window. If you want to present the UINavigationController as a modal view controller then do this:
[self presentModalViewController:nav animated:YES];
It will crash definitely because you set the nib to nil.
CloudappSettingsViewController *cloud = [[CloudappSettingsViewController alloc] initWithNibName:#"NibName goes here" bundle:nil];
Create a nib and assign it to your view controller.
I have a view A where I have a code to push it to view B using:
[navController pushViewController:SecondViewController animated:YES];
when I get there and press back, the button says firstViewcontroller.
But when I press the buttons again to push it to the secondview again.
instead of showing 'firstviewcontroller' the buttons says secondviewcontroller.
and for some reason, my navigation-stack is adding and adding the secondview.
Can someone tell me what I do wrong?
I can't find any problem in my code.
Edit:
I have changed my code to:
FirstViewController *aFirstViewController = [[FirstViewController alloc] initWithNibName:#"FirstView" bundle:[NSBundle mainBundle]];
[navController pushViewController:aFirstViewController animated:YES];
[aFirstViewController release];
and it is still not working:S
I think u had not released the object of your SecondView.....
Anyways Put this at the place where u r giving your navigation code
SecondViewController *viewController = [[SecondViewController alloc] initWithNibName:#"SecondViewController" bundle:nil];
[self.navigationController pushViewController:viewController animated:YES];
[SecondViewController release];
here's my code:
ViewController *vc = [[ViewController alloc] initWithNibName:#"TableView" bundle:nil];
[self.navigationController presentModalViewController:vc animated:YES];
//[self setView:[vc view]];
If I call it, nothing happens. However, if I change it to:
ViewController *vc = [[ViewController alloc] initWithNibName:#"TableView" bundle:nil];
//[self.navigationController presentModalViewController:vc animated:YES];
[self setView:[vc view]];
The view appears just fine (without the transition, of course).
What am I doing wrong? Is there anything special you have to take care of when initializing the view controller? I tried to copy as much as possible from Apple's examples, but I can't get this to work...
Thanks for any input!
-- Ry
You can only present modal view controllers from controllers that have already been shown onscreen (usually through a UINavigationController or UITabBarController). Try creating a UINavigationController, pushing a viewController to it, and then presenting your modal controller. There's a starter project in Xcode that shows how to create a UINavigationController-based flow if you're unfamiliar with it.
One other thing to note: if you haven't pushed the view controller onto a UINavigationController, the .navigationController property will be nil, and messaging it will have no effect.
I encountered the same problem while attempting to show a modal view over another modal view. Ben's answer is correct, and can be implemented like so:
#interface FirstView: UIViewController {
UIViewController *firstView;
}
- (IBAction)showOptionsView:(id)sender;
#end
In the main view class:
- (void)viewDidLoad {
[super viewDidLoad];
firstView = [[UIViewController alloc]init];
[firstView setView:self.view];
[firstView setModalTransitionStyle:UIModalTransitionStyleCoverVertical];
}
- (IBAction)showOptionsView:(id)sender {
OptionsView *optView = [[OptionsView alloc]initWithNibName:#"OptionsView" bundle:nil];
if(firstView != nil) {
[firstView presentModalViewController:optView animated:YES];
[optView release];
}