I am developing navigation base app in iPhone, I hide navigation bar for whole project in app delegate and show on specific view controller where i need. So I unhide navigation bar in xyz view controller when I pop from this xyz controller navigation bar gets hide on animation of popping view controller. Below I have attached screen shots of this strange behavior.
After Pushing View controller actual Image.
On Popping View Controller.
Thanks in advance.
In XYZ viewController,
- (void)viewWillDisappear:(BOOL)animated
{
self.navigationController.navigationBarHidden = NO;
}
If you unhide navigation bar any of controller then it will display in all application if you does not hide it. So if you want to show in only screen then in viewWillApper,make it unhide and in viewWillDisapper make it hide.
-(void)viewWillAppear:(BOOL)animated
{
self.navigationController.navigationBarHidden = FALSE;
[super viewWillAppear:animated];
}
-(void)viewWillDisappear:(BOOL)animated
{
self.navigationController.navigationBarHidden = TRUE;
[super viewWillDisappear:animated];
}
Hope this will help you.
Related
How to navigation to previous page!
I add navigation controller to appDelegate so thought out the application i do have navigation controller.
I hidden navigation Bar and added HeaderView on the top.
// Hidden NavigationBar
- (void) viewWillAppear:(BOOL)animated
{
[self.navigationController setNavigationBarHidden:YES animated:animated];
[super viewWillAppear:animated];
}
Now customize my header bar with UIView! I hidden navigation Bar and added HeaderView on the top.
Now i added BackButton to the header Bar. Now i want to navigation pervious page. Can any one suggest me?
#Thanks In Advance.
if the view is called by a push action, call :
[self.navigationController popViewControllerAnimated:YES];
else if the view is displaying by a modal call :
[self dismissModalViewControllerAnimated:YES];
Use [self.navigationController popviewControllerAnimated :YES];
Use this when the user taps the Back button:
[self popViewControllerAnimated:YES];
I'm trying to add some navigation controller in my app, it's sth likes:
in my index page view controller, I try to initialize the navigation controller like this:
-(void)viewDidLoad{
...
//allocate a navigation controller.
myNavigationController = [[UINavigationController alloc]init];
myNavigationController.delegate = self;
myNavigationController.navigationBar.hidden = YES;
[self.view addSubview:myNavigationController.view];
[myNavigationController pushViewController:tabViewController animated:YES];
[self presentModalViewController:myNavigationController animated:YES];
}
Here, index page view controller is the root view controller of my app, it's just a common UIViewController here.
[myNavigationController pushViewController:tabViewController animated:YES];
The tabViewController here I've pushed into the navigation controller is a custom tabview controller which makes use of a container view to hold the tab button and also holds an navigation controller for tab switching.
The problem here is:
myNavigationController.navigationBar.hidden = YES;
since I've make the navigation bar invisible, it doesn't show when my custom view controller shows, but when I'd like to switch to some other view controller with the navigation controller and I also want the navigation bar visible:
myNavigationController.navigationBar.hidden = NO;
MyViewController *toSwitchNC = [[MyViewController alloc]init];
[myNavigationController pushViewController:toSwitchNC animated:YES];
The navigation bar would never show any more. I've also tried to put:
self.navigationController.navigationBar.hidden = NO
in MyViewController's viewDidLoad, ViewDidAppear or even in the navigation controller's delegate method, it didn't show the navigation bar neither.
So what's wrong with it? Why I initialized the navigation bar to be invisible at first, it will never show again even I set the hidden flag to be false?
Okay, I've got this fixed by removing the navigation controller container in my index page view controller. This might be a stupid question, since apple've formally stated in the developer document that the navigation view controller should be place as root as possible in the view stack. Since IOS is a closed system, who knows WTH is going on under-beneath except Apple.
In my Main Window IB file I have a TabBarController and the first controller is a Navigation Controller. When I push my detail view (after pressing a cell in a table view) I want to push my detail view and display a tool bar instead of the tab bar. The problem is that when I try
tabBar.hidden = visible;
in my detail view controller (viewDidLoad) the tabbar dissapears before the animation between the first view and the detail view is done.
What i want to achieve can be seen in the native photo app when pressing on one of the images from a gallery. There the tabbar moves out with the animation of the first view.
How do I achieve this?
Thanks in advance
check out the 'hidesBottomBarWhenPushed' property on your detail's page subclass of UIViewController
either override this method
- (BOOL)hidesBottomBarWhenPushed
{
return YES;
}
or i'm guessing this would work the same:
self.hidesBottomBarWhenPushed = YES;
as far as showing the toolbar try:
- (void)viewWillAppear:(BOOL)animated
{
[self.navigationController setToolbarHidden:NO animated:YES];
}
and on the way out
- (void)viewWillDisappear:(BOOL)animated
{
[self.navigationController setToolbarHidden:YES animated:YES];
}
I've been wandering how to hide / remove / disable only the main or first navigation bar in the navigation controller so that I could put an image as a whole background screen but I couldn't find any solution.
Did try hide the titleview in viewdidLoad of the main navigation controller but didn't work. Tried using navigationBarHidden but it hides the whole navigation bar for the next stack of controller.
So, I'm not sure how to do this. To give you an example, I would like to have something like this app - The Masters Golf Tournament - http://appshopper.com/sports/the-masters-golf-tournament.
If you look at Screen 1, it doesn't have any nav bar at the top but when you touch any options it will push to a new view controller and have the nav bar appear as in Screen 3,4 and 5.
Hope anyone could help me with this.Thanks a lot!
In most of my applications I have a custom UIViewController class that I derive all other custom controllers from. In some of these, I added a method like navigationBarInitiallyHidden to the base class that other classes can override. The default result depends on the nature of the application.
In the delegate of the navigation controller, when a controller is being shown that implements that method, the delegate hides or shows the navigation controller accordingly. Since I animate the hide or show, I check the current state and do nothing if no change is needed.
You could do something simpler in your delegate method. If the controller being shown is the root controller, hide the navigation bar, otherwise show it if it is hidden.
- (void)navigationController:(UINavigationController *)navigationController willShowViewController:(UIViewController *)viewController animated:(BOOL)animated {
if ( viewController == rootController ) {
[navigationController setNavigationBarHidden:YES animated:animated];
} else if ( [navigationController isNavigationBarHidden] ) {
[navigationController setNavigationBarHidden:NO animated:animated];
}
}
You can hide the navigation bar:
[self.navigationController setNavigationBarHidden:YES];
and where you want to show the navigation bar again
[self.navigationController setNavigationBarHidden:NO];
hide/disable
self.navigationController.navigationBarHidden = YES;
show/Enable
self.navigationController.navigationBarHidden = NO;
You can hide navigation bar by using bellow code. Below code will hide navigationbar at the time of viewWillAppear.
Objective C
-(void)viewWillAppear:(BOOL)animated
{
[[self navigationController] setNavigationBarHidden:YES animated:NO];
}
Swift
self.navigationController?.setNavigationBarHidden(true, animated: animated)
I'm implementing the TTThumbsViewController from the Three20 project and things are finally starting to take shape. I push the TTThumbsViewController from the current view controller by just pushing it onto the current stack and animate the transition (common navigation controller push).
My problem is that when I pop the TThumbsViewController view controller, the navigation controller is stuck in a mode where its view controllers are drawn UNDER the navigation bar (which is now translucent).
Start
Push
Pop
You need to reconfigure the original style of the status bar, navigation bar & tool bar when your view reappears. You can do this by implementing viewWillAppear: in your view controller:
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
UINavigationController* navController = self.navigationController;
navController.navigationBar.barStyle = UIBarStyleDefault;
navController.navigationBar.tintColor = [UIColor redColor];
navController.toolbar.tintColor = [UIColor redColor];
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault animated:YES];
}
It looks like the view controller you are pushing from does not inherit from TTViewController. You may also need to set the 'navigationBarTintColor' property back to your original color after the view has been popped off the stack; if you have not set a global stylesheet.