按下后退按钮，当我将视图控制器从堆栈中弹出时，将丢失我的自定义UIToolBar

Question

I hope everyone is having a great day so far.

I'm running into a problem with my app that I need some help figuring out. I have a view controller (lets call "A") with a custom toolbar which works nicely.

When I push a view controller (lets call it "locationsController") from view controller "A" ...

[self.navigationController pushViewController:self.locationsController animated:YES];    

...and I press the back button on the locationsController which closes like this...

[self.navigationController popViewControllerAnimated:YES];

I lose my custom toolbar in view controller "A" when locationController is popped. How do I fix it so I can intercept and call my buildtoolbar method?

Also, the locationsController can be pushed/popped from one other view controller so I'll need to determine which view controller is popping locationsController and either fire the buildtoolbar method or do nothing since the other view controller doesn't have a toolbar.

view controller "A" is a XIB while locationsController is defined in the storyboard. the XIB does not Have a toolbar in the view/layout thingy.

toolbar code called from viewDidLoad [self buildToolbar]...

-(void) buildToolbar{

blah blah blah
self.navigationController.toolbarHidden = NO;
UIBarButtonItem *flexableItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil];
UIBarButtonItem *refresh = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh target:self action:@selector(refresh:)];
UIBarButtonItem *comments = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"Comments-selected.png"] style:UIBarButtonItemStyleDone target:self action:@selector(cameraButtonTapped:)];
UIBarButtonItem *pin = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"Pin-straight_60wide.png"] style:UIBarButtonItemStyleDone target:self action:@selector(pinBarButtonItemPressed:)];

NSArray *items = [NSArray arrayWithObjects:customBarButtonItem_right, flexableItem, comments, flexableItem, pin, flexableItem, refresh, nil];
  //  [self.navigationController.toolbar setItems:items animated:YES];
self.toolbarItems = items;
}

Thanks in advance!

Answer 1

I moved my call to toolbarSetup from viewDidLoad to viewWillAppear. Apparently the 2nd VC's viewDidLoad doesn't fire when the top most VC is popped off the stack. viewWillAppear fires followed by viewDidAppear, etc....