Lets say i have ViewController A with 2 buttons, each is segueing to ViewController B and C (one button to View B and other to C).From ViewController C I segueing to ViewController D. All the ViewControllers are with Navigation bar so from view B i can return to A, and from view D i can return to D->C->A. The problem is when i segueing between view D to B: the segue is performed but now in the navigation bar of B i retuned to view D and i want B will return to A like it should. what is the solution????
This can be done using two ways as far as i know.
1) Use a custom back button on D controller
2) Change the stack of navigationController i.e NSArray of self.navigationController.viewControllers in the class of D controller
Use Custom back Button
You can do it as follows in D controller.This is valid only if A controller is the rootViewController of navigationController.If you are keeping track of your A controller than you can use the following also
(NSArray *)popToViewController:(UIViewController )viewController animated:(BOOL)animated
- (void)viewDidLoad
{
[super viewDidLoad];
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(goBack:)];
self.navigationItem.leftBarButtonItem = backButton;
self.navigationItem.hidesBackButton = YES;
}
-(void)goBack:(id)sender
{
[self.navigationController popToRootViewControllerAnimated:YES];
}
Change the stack of navigationController
This is useful if you want to navigate to a particular controller.But the back button still displays after getting back to A controller from B,that you might have to see yourself by making some changes.Don't try to change the navigation stack in prepareForSegue
- (void)viewDidLoad
{
[super viewDidLoad];
NSMutableArray *controllers = [NSMutableArray arrayWithArray:self.navigationController.viewControllers];
NSMutableSet *controllersToRemove = [NSMutableSet new];
for (id viewController in controllers) {
if (![viewController isKindOfClass:[self class]]&&![viewController isKindOfClass:[NRViewController class]]) {
[controllersToRemove addObject:viewController];
}
}
for (id controller in controllersToRemove) {
[controllers removeObject:controller];
}
self.navigationController.viewControllers = controllers;
}
Edited Code for custom back button
If you want the original back Button
You have to use image for that with code as follow
UIButton *backButton = [[UIButton alloc] initWithFrame: CGRectMake(0, 0, 60.0f, 30.0f)];
UIImage *backImage = [[UIImage imageNamed:@"back_button_normal.png"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 12.0f, 0, 12.0f)];
[backButton setBackgroundImage:backImage forState:UIControlStateNormal];
[backButton setTitle:@"Back" forState:UIControlStateNormal];
[backButton addTarget:self action:@selector(goBack:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *backButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.leftBarButtonItem = backButtonItem;