Do you know how to hide the 'back' button in a UINavigationController? Also, how to show it back, but I guess that's very similar to hiding it...
Just like the mail application does on the iPhone when you hit 'Edit' while viewing emails.
161
votes
14 Answers
319
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22
votes
In addition to removing the back button (using the methods already recommended), don't forget the user can still 'pop' to the previous screen with a left-to-right swipe gesture in iOS 7 and later.
To disable that (when appropriate), implement the following (in viewDidLoad for example):
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)
self.navigationController.interactivePopGestureRecognizer.enabled = NO;
20
votes
Just to clarify existing answers: the hidesBackButton property is the right answer, but it isn't clear in many answers what self refers to. Basically you should set self.navigationItem.hidesBackButton = YES in the view controller that is about to get pushed (or just got pushed) onto the UINavigationController.
In other words, say I have a UINavigationController named myNavController. I want to put a new view on it, and when I do I don't want the back button to show anymore. I could do something like:
UIViewController *newVC = [[UIViewController alloc] init];
//presumably would do some stuff here to set up the new view controller
newVC.navigationItem.hidesBackButton = YES;
[myNavController pushViewController:newVC animated:YES];
When the code finishes, the view controlled by newVC should now be showing, and no back button should be visible.
16
votes
For hiding and showing the Back button conditionally you can use following code:
-(void)viewDidAppear:(BOOL)animated
{
if ([tempAry count]==0)
{
[self.navigationItem setHidesBackButton:YES animated:YES];
}
else
{
[self.navigationItem setHidesBackButton:NO animated:YES];
}
[super viewDidAppear:animated];
}
Note: in some cases, you have to put it in viewDidAppear method instead of viewWillAppear such cases like: when you are updating array of next class into previous class and then checking condition into next class as above.
11
votes
Swift iOS (I have used following)
// hide back button
self.navigationItem.setHidesBackButton(true, animated: false)
// pgrm mark ----- ------
// hide the back button for this view controller
override func setEditing(editing: Bool, animated: Bool) {
super.setEditing(editing, animated: animated)
self.navigationItem.setHidesBackButton(editing, animated: animated)
}// end setEditing
10
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7
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6
votes
In my case I had few issues with current answers:
- inside viewDidLoad/viewWillAppear only back icon was hidden and the string "Back" was inactive but still visible
- inside viewDidAppear the back button disappeared...but I did not want the user to see it at all
So the solution that finally have worked for me is:
- (id)initWithCoder:(NSCoder *)aDecoder {
self = [super initWithCoder:aDecoder];
if (self) {
[self.navigationItem setHidesBackButton:YES animated:NO];
}
return self;
}
3
votes
The solution suggest by Zoran Simic didn't work for me for some reason.
This code did work however:
MyController* controller = [[MyController alloc] init];
NSArray* array = [[[NSArray alloc] initWithObjects:controller, nil] autorelease];
[self.navigationController setViewControllers:array animated:NO];
[controller release];
Obviously you'd have to manipulate an NSArray to your taste to make it work for you. Hope that helps somebody :)
1
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0
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This hides the back button and replaces it with an add button in Swift:
override func setEditing(_ editing: Bool, animated: Bool) {
super.setEditing(editing, animated: animated)
// This hides the back button while in editing mode, which makes room for an add item button
self.navigationItem.setHidesBackButton(editing, animated: animated)
if editing {
// This adds the add item button
let addButton = UIBarButtonItem(barButtonSystemItem: .add, target: self, action: #selector(addTapped))
// Use the animated setter for the left button so that add button fades in while the back button fades out
self.navigationItem.setLeftBarButton(addButton, animated: animated)
self.enableBackGesture(enabled: false)
} else {
// This removes the add item button
self.navigationItem.setLeftBarButton(nil, animated: animated)
self.enableBackGesture(enabled: true)
}
}
func enableBackGesture(enabled: Bool) {
// In addition to removing the back button and adding the add item button while in edit mode, the user can still exit to the previous screen with a left-to-right swipe gesture in iOS 7 and later. This code disables this action while in edit mode.
if let navigationController = self.navigationController {
if let interactivePopGestureRecognizer = navigationController.interactivePopGestureRecognizer {
interactivePopGestureRecognizer.isEnabled = enabled
}
}
}
0
votes
Swift 3.
Generally, you should use Apple's per-ViewController API as described many times already on this page, but sometimes you need immediate control of the Back button.
The following code hides the Back button and ensures that tap collision detection doesn't occur in the hidden button region.
let emptyView = UIView(frame: .zero)
self.navigationItem.leftBarButtonItem = UIBarButtonItem(customView: emptyView)
