I am using the facebook FBFriendPickerViewController and want the user to only be able to select one friend and then have it dismiss the view controller. In the FBFriendPickerDelegate, under the selectionDidChange method I am trying to capture what friend they selected and then dismiss the view controller. I can't get it to dismiss, I feel like I have done this type of thing many times before so I feel kind of dumb asking this, but I feel like I have exhausted every variation of this and nothing works.
-(void)friendPickerViewControllerSelectionDidChange:(FBFriendPickerViewController *)friendPicker{
self.selectedFriends = friendPicker.selection;
NSLog(#"%#", self.selectedFriends);
[friendPicker dismissViewControllerAnimated:YES completion:nil];
}
I have also tried
[[friendPicker parentViewController] dismissViewControllerAnimated:YES completion:nil];
[self.friendPickerController dismissViewControllerAnimated:YES completion:nil];
[self.navigationController dismissViewControllerAnimated:YES completion:nil];
[[friendPicker navigationController] dismissViewControllerAnimated:YES completion:nil];
[self dismissViewControllerAnimated:YES completion:nil];
all to no avail.
Since it's a navigation Viewcontroller that you likely pushed, you would want to pop it:
[self.navigationController popViewControllerAnimated:YES];
If you present the friendpicker controller modally you can dismiss it by using the facebookViewControllerCancelWasPressed and the facebookViewControllerDoneWasPressed methods of the FBViewControllerDelegate protocol. If you conform to FBFriendPickerDelegate you automatically conform to the first one.
Related
I have just started working on ios.
I created a Modalviewcontroller (VC1) and presented another modalViewcontroller (VC2).
There is a button (dismiss) on VC2 which will have to dismiss both viewcontrollers.
The way i know is call :-
[self dismissViewControllerAnimated:YES completion:nil];
in VC2
then call the same in VC1
So i created a delegate which tells me if dismiss is clicked in VC2.
so when dismiss is clicked:-
i call
[self dismissViewControllerAnimated:YES completion:nil];
in VC2
then that delegate method takes me to VC1
where I again call
[self dismissViewControllerAnimated:YES completion:nil];
This method was perfectly working till i was using the app in ios9
when i shifted to ios7 i started getting the warning and VC1 was not getting dismissed.
Please let me know why is this happening.
So the part which works for me as told in comments.
[self.presentedViewController dismissViewControllerAnimated:YES completion:^{
[self dismissViewControllerAnimated:YES completion:nil];
}];
So, error tells you exactly what happened. You trying to dismiss VC1, while your VC2 dismissing. By putting dismissViewControllerAnimated into delegate method does not guarantee that VC1 will be dismissed before, instead of that you should call your [self dismissViewControllerAnimated:YES completion:nil]; in completion block after first dismiss, so your code will look like that:
[self dismissViewControllerAnimated:YES
completion:^{
[self dismissViewControllerAnimated:YES completion:nil];
}];
So I have a VC that i call on when a button is clicked (It's a MFMailComposeViewController) and when the message is sent, It dismisses the ViewController and i want it to present a different one once it's done sending. But instead of doing this it crashes after sending the email every time. i know I'm doing something wrong but i'm not sure what.
Here's my code that dismisses and presents the new one.
- (void) mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
[self dismissViewControllerAnimated:true completion:nil];
[self presentViewController:_emailConfirmationPage animated:YES completion:nil];}
I was thinking that the problem was that I used self but I'm not sure what I use in place of that.
It is crashing because you are asking for both dismiss and present animations to begin simultaneously. So you can fix this in 2 ways:
Wait for the first animation to complete before starting the next one. This will animate the dismissal of the current VC and animate the presentation of the new one. Of course the user would have to wait for both animations to complete before they can continue interacting with the app. To do this, present _emailConfirmationPage in the completion block of dismissing the current VC like this:
[self dismissViewControllerAnimated:YES completion:^{
[self presentViewController:_emailConfirmationPage animated:YES completion:nil];
}];
Animate either dismiss OR present, but not both. This might be better because the user would have to wait only for 1 animation and that 1 animation will most probably be sufficient to ensure a fluid user experience.
[self dismissViewControllerAnimated:NO completion:nil];
[self presentViewController:_emailConfirmationPage animated:YES completion:nil];
Try put your [self presentViewController:_emailConfirmationPage animated:YES completion:nil];} into completion: block in the [self dismissViewControllerAnimated:true completion:nil]; , it will execute present vc after it has complete dismiss the other vc
Like this:
[self dismissViewControllerAnimated:YES completion:^{
[self presentViewController:_emailConfirmationPage animated:YES completion:nil];
}];
Your code did not work because its still animating dismissViewController and there can't be 2 animation at the same time
I'm doing an ios project without using any story board and xibs.
Here I've come out one problem on presenting my UIViewController.
Here is the senario:
My RootViewController has 2 UIButton's that can present ViewControllerA and ViewControllerB when being pressed.
-(IBAction)btnAclicked:(id)sender{
[self.navigationController presentViewController:ViewControllerA];
}
-(IBAction)btnBclicked:(id)sender{
[self.navigationController presentViewController:ViewControllerB];
}
And now inside ViewControllerA
I have a button to presentViewContollerB as well, and I want only the RootViewController to be displayed when I dismiss ViewContollerB.
In order to do this, I need to dismiss ViewControllerA first then presentViewControllerB. I know there is ways like using delegate to make it works, but I just want to know if there is any easier way to do this.
To be emphasised is that I want to use presentViewController only, not pushViewController. Thanks
I have an answer for your question,just do the following code,
in RootViewController.m
- (IBAction)gotoViewA:(id)sender
{
ViewControllerA *viewControllerA = [[ViewControllerA alloc]initWithNibName:#"ViewControllerA" bundle:nil];
[self presentViewController:viewControllerA animated:YES completion:nil];
}
- (IBAction)gotoViewB:(id)sender
{
ViewControllerB *viewControllerB = [[ViewControllerB alloc]initWithNibName:#"ViewControllerB" bundle:nil];
[self presentViewController:viewControllerB animated:YES completion:nil];
}
in ViewControllerA.m
- (IBAction)actionBackFromA:(id)sender
{
[self dismissViewControllerAnimated:YES completion:nil];
}
in ViewControllerB.m
- (IBAction)actionBackFromB:(id)sender
{
[self dismissViewControllerAnimated:YES completion:nil];
}
Use the completion block of presentviewcontroller,viz will executed first
[self presentViewController:goTo_B animated:YES completion:^{
//Dismiss A
[self dismissViewControllerAnimated:YES completion:nil];
}];
If this does not work,write dismiss and just after it present your new controller
[self dismissViewControllerAnimated:YES completion:nil];
[self.view.window.rootViewController presentViewController:goTo_B animated:YES completion:^{ }];
There's another way out, but i don't know whether its appropriate or not.
Create a property of type View Controller A in view controller B.
While presenting view controller B, assign an instance of View Controller A to the property in view Controller B.
[self presentViewController:goTo_B animated:YES completion:^{
goTo_B.propertyOfViewControllerA = self;
}];
After that while dismissing view controller B you can do the either of the two:
[self dismissViewControllerAnimated:YES completion:nil];
[propertyOfViewControllerA dismissViewControllerAnimated:YES completion:nil]
or
[self dismissViewControllerAnimated:YES completion:^{
[propertyOfViewControllerA dismissViewControllerAnimated:YES completion:nil]
}];
I present modal view which is a navigation controller:
UINavigationController *nvc = [[UINavigationController alloc] initWithRootViewController:photoEditVC];
[self presentViewController:nvc animated:YES completion:NULL];
Once I'm done with the modal view, inside nvc's visible controller:
[self.presentingViewController dismissViewControllerAnimated:YES completion:NULL];
Result
Any ideas why this could happen?
UPDATE:
I realized this only happens when before dismissing the view, I update a value in a shared singleton class, I use to keep track of events.
[[SAStatus current] setValue:#(ua_photoSubmitted) forKeyPath:#"actions.user"];
[self dismissViewControllerAnimated:YES completion:NULL];
But it works fine if I do this:
[[NSOperationQueue mainQueue] addOperationWithBlock:^{
[[SAStatus current] setValue:#(ua_photoSubmitted) forKeyPath:#"actions.user"];
}];
or I can do this and it also works fine:
[self dismissViewControllerAnimated:YES completion:^{
[[SAStatus current] setValue:#(ua_photoSubmitted) forKeyPath:#"actions.user"];
}];
At the time, no other classes observer that variable so I do not understand why it would affect the modal view.
Not sure that this is causing the black screen, but the presented view controller should call dismissViewController on itself, not on the presenting view controller.
[self dismissViewControllerAnimated:YES completion:nil];
I saw this issue with iOS 8 GM. Dismissing with animated set to NO did the trick.
MainMenuViewController presents BonusViewController modally. I want to Dismiss BonusViewController then display a new BonusViewController, effectively "resetting" BonusViewController.
Im using notifications to call this method in MainMenuViewController
-(void)resetBonus{
[self dismissViewControllerAnimated:YES completion:nil];
[self presentViewController: BonusViewController animated:NO completion:nil];
}
I expected BonusViewController to be auto-detected as I was typing it in the presentViewController call above but it was not and none of my viewControllers show up as I type which Im assuming means im doing this all wrong. Do I have to initialize the VC or allocate it before I can present it like this? Or can I even do this at all since im using storyboards?
I also tried this though I believe this method is deprecated
-(void)resetBonus{
[self dismissModalViewControllerAnimated:YES];
[self presentModalViewController: BonusViewController animated:NO ];
}
Did what Sumanth suggested but I get this message now:
so now I m doing :
#import "BonusViewController.h
....
-(void)resetBonus
{
BonusViewController *bonus = [[BonusViewController alloc]init];
[self dismissModalViewControllerAnimated:NO];
[self presentModalViewController: bonus animated:NO ];
}
the errors are all gone but when BonusViewController is presented the display is solid black, i can hear the sounds going but cant see anything on the screen
you should allocate and initialize the viewcontroller and present that using presentModalViewController write like this
BonusViewController *bonus = [[BonusViewController alloc]init];
[self dismissModalViewControllerAnimated:YES];
[self presentModalViewController: bonus animated:NO ];
Also dont forget to write #import "BonusViewController.h" in .h file
BonusViewController *objBonus = [[BonusViewController alloc]init];
[self dismissViewControllerAnimated:YES completion:NULL];
[self presentViewController:objBonus animated:YES completion:NULL];
You need to create and object of the viewcontroller and you are directly passing the viewcontroller which is not possible
#import "BonusViewController.h"
-(void)resetBonus
{
BonusViewController *BonusViewController = [[BonusViewController alloc]init];
[self dismissViewControllerAnimated:NO completion:nil];
[self presentViewController: BonusViewController animated:NO completion:nil];
}
Set Both of animated is NO
EDIT : #import "BonusViewController.h"
Im sure the answers given were correct but I could not get them to work properly. For some reason BonusViewController seems to be displayed as I can hear the sounds going but the screen is black and nothing is displayed visually.
I ended up doing the below for now in the intrest of time but this isnt the smooth effect I was really going for.
I have to re-visit this when I have more time to figure out a better way to do it.
-(void)endBonus
{
[self dismissViewControllerAnimated:NO completion:^{
[self performSelector:#selector(resetBonus) withObject:nil afterDelay:1];
}];
}
-(void)resetBonus
{
[self performSegueWithIdentifier: #"segueToBonus" sender: self];
}