I wan't to flip from one view controller to another for that i used following coding on button click
-(void)ClicOnLogout {
LogOutViewController *logOut=[[LogOutViewController alloc]initwithnName:str];
logOut.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:logOut animated:YES];
}
but when i m in logout view controller there is one button but it won't work so can any one give me the proper solution for it.
Thanx...
You should read that Apple documentation article on Modal View Controllers which explains everything you are asking there. Basically what you need to do on your logout view is to call :
[self dismissModalViewControllerAnimated:YES];
By calling this, the back (left-to-right) flip animation will be done automatically :
UIModalTransitionStyleFlipHorizontal
When the view controller is presented, the current view initiates a horizontal 3D flip from right-to-left, resulting in the revealing of the new view as if it were on the back of the previous view. On dismissal, the flip occurs from left-to-right, returning to the original view.
You can call the popViewControllerAnimated method:
[self.navigationController popViewControllerAnimated:YES];
or you can assign it to push it onto the navigation controllers stack:
[self.navigationController pushViewController: viewController animated:YES];
Related
I know this has been asked a million times, but I couldn't find a suitable answer in those many questions that I've examined.
I have a custom view controller, and I'm trying to display the view controller when the user taps a button (so no "infamous viewDidLoad problem" here).
Here is my code that runs when the user taps the button: (I have the NIB for the view controller, and I have a navigation controller)
ICLoginViewController *loginViewController = [[ICLoginViewController alloc] initWithNibName:#"ICLoginViewController" bundle:[NSBundle mainBundle]];
//assuming we have a navigation controller.
UINavigationController *navigationController= (UINavigationController*)[[UIApplication sharedApplication] keyWindow].rootViewController;
[navigationController.topViewController presentViewController:loginViewController animated:YES completion:nil];
I'm getting the Warning: Attempt to present <ICLoginViewController: 0xa08a810> on <UINavigationController: 0xa45de70> whose view is not in the window hierarchy! error when I try to present the view controller. Nothing happens on screen. If I tap multiple times I get the same error, and still nothing happens. I've set a breakpoint and verified that navigationController and navigationController.topViewController are not nil. I' using storyboard (if it helps) but not for the custom view controller that I'm trying to display. (I want to make it an app-independent library in the long run, so I'm not referencing any app-specific modules within) Why am I getting this error?
I've found the solution. The problem was, my modally displayed view controller was not the 'top' view controller in navigation controller. If I change the calling view controller to be pushed instead of being modal, then it becomes the top view controller and my app works well. Apparently, this had nothing to do with my custom view controller, but my navigation stack.
If its in an NSObject create a method inside the NSObject that takes your current viewController as an argument and present it there.
eg:
-(void)presentInViewController:(UIViewController *)controller{
ICLoginViewController *loginViewController = [[ICLoginViewController alloc] initWithNibName:#"ICLoginViewController" bundle:[NSBundle mainBundle]];
[controller presentViewController:loginViewController animated:YES completion:^(BOOL comp){}];
}
This way you can call that view controller wherever you want instead of trying to find your way through the navigation stack from UIApplication.
how can I move to front page in navigation Controller?
i know that if i want to move to rootpage, i can use
[self.navigationController popToRootViewControllerAnimated:YES];
but i want to move in front of 2pages. not root page and before page.
how can I do for it?
If you know the viewController on the navigation bar's view controller stack then you can use:
[self.navigationController popToViewController:viewControllerToShow animated:YES];
popToViewController:animated:
Pops
view controllers until the specified
view controller is at the top of the
navigation stack.
Yes you can use
popToViewController:animated:
Pops view controllers until the specified view controller is at the
top of the navigation stack.
In addition to the above answers, if you can't have an instance of the view controller you can do so by the index of the view controller in the stack.
NSArray *array = [self.navigationController viewControllers];
[self.navigationController popToViewController:[array objectAtIndex:2] animated:YES];
If you hold a reference to the mentioned ViewController*, you can use;
[self.navigationController popToViewController:(UIViewController *) animated:(BOOL)];
This way it goes back till it reaches the given ViewController.
Other workarounds can be, going to root and then navigating to the main page (if it is level 1, of course) without animation. Or you can pop the ViewControllers one by one, till you are there... It all depends on your structure.
Beware though, if you are holding a reference to the mentioned ViewController, you need to retain/release it properly.
I hope it helps
I am using a split view controller in an iPad app I am trying to make.
Right now, I have a view being displayed in a modal view controller using:
[self presentModalViewController:viewController animated:YES];
and that works fine, but when the user presses a button, I want the root view controller to push to another view. I am using:
RootViewController *rvc = [[RootViewController alloc] initWithNibName:#"RootViewController" bundle:nil];
[rcv pushViewController:rvc animated:YES];
but that is not working. What should I do?
--EDIT
Now, I am using
PhotosViewController *pv = [[PhotosViewController alloc] initWithNibName:#"PhotosViewController" bundle:nil];
[self.parentViewController.navigationController pushViewController:pv animated:YES];
NSLog(#"Navigation Controller: %#", self.parentViewController.naviagtionController);
When I do the NSLog call, it returns nil. Why is that?
Once again, I am using a split view controller and am trying to push the RootViewController to a new view.
Thanks
Your code isn't working because you're created a RootViewController instance and then trying to push it onto itself. What you should be doing is pushing the new view controller onto the parent view controller's navigation controller:
[self.parentViewController.navigationController pushViewController:newViewController animated:YES];
I know this is an old question but I believe the proper way "now" to push a viewController onto the main navigation stack from a modal viewController is to create a "didTapShowBlahViewController" delegate on the modal (this is assuming you want the user to be finished with the existing modal view and then push a new view onto the stack). Once you have that delegate, you simply have the view that initially invoked the modal to perform dismissing the modal and pushing the next view controller when the delegate is triggered.
- (void)didTapShowBlahViewController{
[self dismissViewControllerAnimated:YES completion: nil];
[self performSegueWithIdentifier:#"segueToBlahViewController" sender:self];
}
This is based on Apple's View Controller Programming Guide that specifies passing data to child view controllers and using delegates to pass data back to parents.
FYI: This way also ensures that the "back" button will not go back to the modal but instead to the view that invoked the modal, which is how modals are typically used.
I m making an app which has a main TableView. when we click any cell we got DetailView of that cell. we can also change DetailView without going back to main TableView by using next and prev button on every DetailView. When i click prev button. I get previous item'd DetailView but animation is like its going forward. i m using this:
[self.navigationController pushViewController:prevView animated:YES];
can anybody tell me how can i change that animation like Back button animation.
Thanx in advance
You have to store your navigationController, then 'pop' your current view with an animation and 'push' the detail view without an animation, for example like Squeegy did here. I've adjusted Squeegy's code a bit, the following should work:
// locally store the navigation controller since
// self.navigationController will be nil once we are popped
UINavigationController *navController = self.navigationController;
// retain ourselves so that the controller will still exist once it's popped off
[[self retain] autorelease];
// Pop this controller and replace with another
[navController popViewControllerAnimated:YES];
[navController pushViewController:prevView animated:NO];
I have image picker which collects data for another view controller (TTMessageController from three20) and I want this message composer to appear behind image picker, so when image piker slides out there will be already appeared message controller with pre-filled data.
Code like this
[self.navigationController presentModalViewController:composeController animated:NO];
[picker dismissModalViewControllerAnimated:YES];
and vice-versa wont work at all. What to do? How to present composeController behind already presented picker controller?
Thanks in advance.
Actually removing animation from both viewController help.
[picker dismissModalViewControllerAnimated:NO];
[self presentModalViewController:composeNavController animated:NO]; // If YES it crashes
But it's not to iPhone-ish if get what I mean, even fade throw black or just some visual effect will make it look much, much nicer. Technically tho, it works.
Edit:
Ok I think the problem here is the modal bit, as the iPhone really appears to not like you having 2 views set to modal, or even animating from one modal view to another.
Do they definitely have to be modal? How about adding them to the normal navigation stack?
You could add the message view to the stack first (non-animated) so that it's there when you pop back one.
Try this:
The order in which you add views to the stack affects the order that they will display in when you dismiss them.
This part adds the composeController to the stack and then animates the picker going on top. Use this code to display the picker controller (ie instead of modal dialog):
[self.navigationController pushViewController:composeController animated:NO];
[self.navigationController pushViewController:picker animated:YES];
Then, when you are done with the picker, you can "pop" the view back to the message composer:
[self.navigationController popViewControllerAnimated:YES];
You should now have no references to any modal dialogs remaining in your code. I believe this should work much better than modal, which really is for displaying one view above every other one, not for switching from view to view.
Hope that helps!
Instead of trying to present another viewController behind the picker, you could dismiss the image picker modal view controller, push the Message controller (both with animated:NO), and then use a CATransition to perform your own Cocoa-like animation of the image picker animating off screen.
You need to split these animations up so they don't execute in the same runloop. I've run into a situation where the OS does not like dismissing and presenting modal views back to back.
Try this:
- (void)myCallbackMethod{
[picker dismissModalViewControllerAnimated:YES];
[self performSelector:#selector(presentMessage) withObject:nil afterDelay:0.25];
}
- (void)presentMessage{
[self.navigationController presentModalViewController:composeController animated:YES];
}