I have a tab bar controller with a view inside a navigation controller. One of the buttons on this pops up a modal view. I set my starting view as the delegate for the modal, and call the following:
- (void)dischargeSaveComplete:(dischargeView *)controller
{
[self dismissViewControllerAnimated:YES completion:nil];
[self.navigationController popViewControllerAnimated:YES];
}
It correctly dismisses the modal view, but it doesn't call the back button. Do I need to do something else since it's inside a tab bar controller?
I tried set both to animation no as seen below, and it doesn't work either.
- (void)dischargeSaveComplete:(ehrxEncounterDischargeView *)controller
{
[self dismissViewControllerAnimated:NO completion:nil];
[self.navigationController popViewControllerAnimated:NO];
}
Found the solution based on one of the answers, because I was in a tab bar controller, I had to call the popviewcontroller from the first view as seen below:
- (void)dischargeSaveComplete:(ehrxEncounterDischargeView *)controller
{
[self dismissViewControllerAnimated:YES completion:^(void)
{
demoView *e = [self.parentViewController.tabBarController.viewControllers objectAtIndex:0];
[e.navigationController popViewControllerAnimated:YES];
}];
}
You want 2 animations to follow one another, which is not allowed as you did it. You either have to cancel one of the animation or place popViewController inside the completion block for your first animation.
[self dismissViewControllerAnimated:YES completion:^(void) {
[self.navigationController popViewControllerAnimated:YES];
}
];
u can try delay in performing second action
[self.navigationController performSelector:#selector(popViewControllerAnimated:) withObject:#"YES" afterDelay:1];
hope it works.. happy coding :)
Related
I have this navigation stack
RootVC ---> VC1 --> (presenting)-> ModalVC
and I have VC2 (not in navigation stack).
When presenting ModalVC, I want to click on button in my ModalVC to dismiss ModalVC, then push VC2 into the navigation stack after VC1 at one click. It should look like this:
RootVC ---> VC1 ---> VC2
I tried a lot of methods to make it, but pushing event fire only, when I return to my RootVC.
I tried to make it with delegates:
In ModalVC on click:
[self dismissViewControllerAnimated:YES completion:^{
if ([self.delegate respondsToSelector:#selector(dismissAndPush:)]) {
[self.delegate performSelector:#selector(dismissAndPush:) withObject:VC2];
}
}];
In VC1:
- (void)dismissAndPush:(UIViewController *)vc {
[self.navigationController pushViewController:vc animated:NO];
}
Please help to understand this behavior. Where is my mistake?
From Apple Documentation:
The presenting view controller is responsible for dismissing the view
controller it presented.
So, VC1 should be dismissing the ModalVC, try to do this
ModalVC on click:
if ([self.delegate respondsToSelector:#selector(dismissAndPush:)]) {
[self.delegate performSelector:#selector(dismissAndPush:) withObject:VC2];
}
In VC1:
- (void)dismissAndPush:(UIViewController *)vc {
[self dismissViewControllerAnimated:YES completion:^{
[self.navigationController pushViewController:vc animated:NO];
}];
}
Error has been in other. If Im right understand: some animations before dismissing presented view controller are blocking animations in navigation stack. I solved this problem with 2 ways:
1) deleteting or set right animations before dismissing
2) use setViewControllers in navigation controller (I select it)
- (void)dismissAndPush:(UIViewController *)vc {
[self dismissViewControllerAnimated:NO completion:^{
NSMutableArray *mutableControllers = [NSMutableArray arrayWithArray:self.navigationController.viewControllers];
NSArray *controllers = [mutableControllers arrayByAddingObject:vc];
[self.navigationController setViewControllers:controllers animated:NO];
}];
}
I have a navigation controller A on which i push the view controller B. From B i present modally the view controller C. I need to dismiss C and pop B at the same time. I would like to that in sequence, keeping the dismiss animation first and then the pop animation from B to A. I tried without success this code:
[self dismissViewControllerAnimated:YES completion:^{
[self.presentingViewController.navigationController popViewControllerAnimated:YES];
}];
Any suggestion on how can i achieve this?
If you are writing in C viewcontoller then :
UIViewController *pvc = self.presentingViewController;
UINavigationController *navController = [pvc isKindOfClass:[UINavigationController class]] ? (UINavigationController *)pvc : pvc.navigationController;
[self dismissViewControllerAnimated:YES completion:^{
[navController popViewControllerAnimated:YES];
}];
or if in B view controller
[self.presentedViewController dismissViewControllerAnimated:YES completion:^{
[self.navigationController popViewControllerAnimated:YES];
}];
I had tried popping two times in succession before but not dismissing one and popping another one. You can try what I did and see if it works for you.
In Subview B:
- (void)subViewCController:(SubViewCController *)controller didSelectID:(NSNumber *)theID
{
// do something with theID...
// for my case, I popped
// [self.navigationController popViewControllerAnimated:YES];
// for your case
[self dismissViewControllerAnimated:YES completion:nil];
// Somehow, adding a small delay works for me and the animation is just nice
[self performSelector:#selector(backToSubViewA) withObject:nil afterDelay:0.6];
}
- (void)backToSubViewA
{
[self.navigationController popViewControllerAnimated:YES];
}
Are you using storyboards and segues? If so, you can use unwind segue:
In your first view controller (the one you want to jump back to, not the one you're returning from), create an unwind segue action:
- (IBAction)gotoMainMenu:(UIStoryboardSegue *)segue
{
// if you need to do anything when you return to the main menu, do it here
}
Then in storyboard, you can create a segue from the "dismiss" button to the exit outlet icon () in the bar above the scene, and you'll see main menu listed there.
I have a view A, a view B and a view C. The idea is : I'm presenting view B on view A, view B has a delegate in view A that performs a segue : view C.
My problem is I have the message "Attempt to present view B on view A while a presentation is in progress!".
I can make it work adding a delay in the method of view A that performs the segue, but isn't there a better way to make it work ?
In view A, the delegate method :
- (void)addItemViewController:(NSString *)string text:(NSString *)textfield{
[self barcodeData:string type:1 :^(BOOL finished) {
if(finished){
[self performSegueWithIdentifier:#"viewC" sender:self];
}
}];
}
In view B
[self.delegate addItemViewController:saisieManuelleTextView.text text:nil];
[self dismissViewControllerAnimated:NO completion:nil];
Try invoking the delegate in the animation completion handler (some overlap in postings as redent84 also suggested this):
[self dismissViewControllerAnimated:YES completion:^{
[self.delegate addItemViewController:saisieManuelleTextView.text text:nil];
}];
That way you're still getting the benefits of the delegate and avoid the possibility of simultaneous view controller animations.
Better yet, if view A presents view B, then make viewA responsible for dismissing viewB as well, instead of having viewB dismiss itself. That way viewB doesn't have to know how it was presented in the first place:
- (void)addItemViewController:(NSString *)string text:(NSString *)textfield{
[viewB dismissViewControllerAnimated:YES completion:^{
[self barcodeData:string type:1 :^(BOOL finished) {
if(finished){
[self performSegueWithIdentifier:#"viewC" sender:self];
}
}];
}];
}
The problem that you are seeing is related to the animation of the transitions. You are trying to animate the transition from view A to view C while there's already a transition active from view B back to view A.
Try using the completion block of the dismissViewControllerAnimated method:
[self dismissViewControllerAnimated:YES completion:^{
[self performSegueWithIdentifier:#"MySegue" sender:self];
}];
Or try disabling the animation of the transition from the view B to view A so it doesn't affect at all:
// For navigation controllers
[self.navigationController popViewControllerAnimated:NO];
// For modal controllers
[self dismissViewControllerAnimated:NO completion:nil];
EDIT:
You are presenting the new controller before dismissing the previous one, change the following lines:
[self.delegate addItemViewController:saisieManuelleTextView.text text:nil];
[self dismissViewControllerAnimated:NO completion:nil];
to this:
[self dismissViewControllerAnimated:NO completion:nil];
[self.delegate addItemViewController:saisieManuelleTextView.text text:nil];
Alternatively, you can maintain the animation using the completion block as described above:
[self dismissViewControllerAnimated:YES completion:^{
[self.delegate addItemViewController:saisieManuelleTextView.text text:nil];
}];
There are 3 view controllers View1,View2 and View3.
From view3 I have to navigate to view1.
I have tried the following code but it doesn't work.
//in View3.m
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex;
{
appDelegate.isComingFromCountries = YES;
[self dismissViewControllerAnimated:YES completion:nil];
}
//in View2.m
-(void)viewWillAppear:(BOOL)animated
{
if (appDelegate.isComingFromCountries == YES)
{
appDelegate.isComingFromCountries = NO;
[self dismissViewControllerAnimated:YES completion:nil];
}
}
But this code doesn't work. How do I handle this?
You can use use presentingViewController for dismissing it,
try this -
[self.presentingViewController.presentingViewController dismissModalViewControllerAnimated:YES];
A -> B -> C
Running the above code in modal C will take you back to A.
You have to use delay method to perform animation so that main thread should start performing in B viewController
[self performSelector:#selector(methodForDissmiss) withObject:nil afterDelay:0.5];
then write dismiss code in selector method to work by your logic.
If you are returning to the root view controller from a series of modally presented view controllers then the following code will work in iOS6
[self.window.rootViewController dismissViewControllerAnimated:NO completion:nil];
I think, It may help you. According to your code( in comments area), You second view controller push from first view controller, then present third from second. So you have to set delegate as second in third. And do your code as below in third VC.
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex;
{
appDelegate.isComingFromCountries = YES;
[self dismissViewControllerAnimated:YES completion:^{
[self.delegate dismissModal];
};
}
In SecondVC.m
-(void)dismissModal
{
[self.navigationController popViewControllerAnimated:NO];
}
Also you can pop to view 1 from view 3 on like this:
- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex{
[self.navigationController dismissViewControllerAnimated:NO completion:nil];
[self.navigationController dismissViewControllerAnimated:YES completion:nil];
}
You can try this one :
if you are pushing one viewController to another and want to move back then use this one
[self.navigationController popViewControllerAnimated:YES];
if you are presenting viewController use modelly and want to move back then use this one
[picker dismissViewControllerAnimated:YES completion:nil];
also you can try this because first you need to dismiss third viewController then second one.
UIViewController *viewController = [self parentViewController];
[self dismissModalViewControllerAnimated:NO];
[viewController dismissModalViewControllerAnimated:YES];
I read a lot of documentation about this before i decided to ask.
So I have navigationController in my app. When user enters the first time in my app I do this
RegViewController *opr = [[RegViewController alloc] init];
self.regController = opr;
[self.navigationController presentModalViewController:self.regController animated:NO];
[opr release];
And it works fine. But when I click OK button in RegViewController I call this method
-(IBAction)btn_regPressed:(id)sender
{
NSLog(#"start to dissmis modal");
[self.navigationController dismissModalViewControllerAnimated:YES];
//[self.navigationController.parentViewController dismissModalViewControllerAnimated:YES];
}
But this code doesn't want to dismissModalViewController
Can somebody help me with thios issue please. Thanks
try to change your call to (remove the navigationController):
[self presentModalViewController:self.regController animated:NO];
and in your button (remove the navigationController):
[self dismissModalViewControllerAnimated:YES];
You are telling to your navigationController dismiss your modal, but your viewcontroller should do it.
Navigation controllers are used to navigation (go and back) purposes. And probably, your navigationController is nil.
In your RegViewController, try to dismiss self like so:
-(IBAction)btn_regPressed:(id)sender
{
NSLog(#"start to dissmis modal");
[self dismissModalViewControllerAnimated:YES];
}