I am using custom navigation view for navigation bar.
CustomNavigation *navigation = [[CustomNavigation alloc] initWithNibName:#"CustomNavigation" bundle:nil];
[self.navigationController.navigationBar addSubview:navigation.view];
This is my code for custom navigation to addsubview for navigation. I am using in viewwillapper. Because it's show and hide image and button based from popviewcontroller.
Here my problem is I need to dealloc this customnavigation view but I am already tried in view disappear it won't work? :( (I am using find that issue by "debug view hierarchy" in Hide or show debug area )
Am I using correct way for custom navigation bar or else give me correct way to create customized navigation bar?
If this is correct way to create customized navigation bar then how to dealloc this custom navigation view when view disapper?
I am new bee for xcode so give some little more explanation maybe I am struggles to understand. :(
Sample APP navigation only one at home screen also pop from another view
Sample APP at second view
My app at home screen
After few view my home screen navigation
Check all screens you will understand what I want.
I want to dealloc all navigation bar allocation form manually.
Screen shot's from "debug view hierarchy" in Hide or show debug area - XCODE.
This is worked for me :)
Add a tag for that view each time when I use add subview code before
for(UIView *view in [self.navigationController.navigationBar subviews])
{
if(view.tag == 1000 && [view isKindOfClass:[UIView class]])
{
navigation = nil;
[view removeFromSuperview];
}
}
If it's not perfect answer then show the correct one. Advance thanks.
Related
I have a UINavigationController with a UIViewController set as it's rootController, it contains a background on its UIView using an image set just under the navBar. I then push onto the navigation controller a new UIViewController and when the back button is pushed, the previous controller looks different. Using the visual debugger I can see that the self.view has moved entirely down below the navBar where previously it was at the top. I have no idea and been racking my brains as to why this might be happening
-(void)pushIPhoneMessagingContactsController:(MessageContactsViewController *)contactsController{
self.selectorView.hidden = YES;
[self.navigationController pushViewController:contactsController animated:YES];
}
On the RootViewController (iPhoneMessagingNotificationsController)
-(void)viewWillAppear:(BOOL)animated{
self.selectorView.hidden = NO;
[[[self navigationItem] leftBarButtonItem] setTintColor:[UIColor blackColor]];
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleDefault];
if ([_displayType intValue] == MESSAGES_SHOWING) {
[self.notificationsViewController.view removeFromSuperview];
[self.contentView addSubview:_messagesViewController.view];
} else {
[self.messagesViewController.view removeFromSuperview];
[self.contentView addSubview:_notificationsViewController.view];
}
}
It seems the offending line was in the viewWillAppear method of the pushed UIViewController
self.navigationController.navigationBar.translucent = YES;
Somewhere else this navigationBar gets set as translucent:
[self.navigationController.navigationBar setBackgroundImage:[UIImage new]
forBarMetrics:UIBarMetricsDefault];
self.navigationController.navigationBar.shadowImage = [UIImage new];
self.navigationController.navigationBar.translucent = YES;
and to make it solid colour again:
self.navigationController.navigationBar.shadowImage = nil;
self.navigationController.navigationBar.translucent = NO;
but this code seems to mess with the layout so perhaps there is another way to change the opacity of the navBar and statusBar without affecting the layout?
What you're currently trying to do is hide or show a selectorView which really only should appear for one specific view controller.
Here's an encapsulated way to solve this that makes your selectorView a part of the root view controller, removing the connection from other view controllers. They no longer have to know about it or hide it.
Add your selectorView to your rootViewController's navigation bar titleView. (You can do this in code, or drop it in Storyboard and add an IBOutlet for it.)
self.navigationItem.titleView = selectorView;
Now when you push another view controller, its title will replace your rootViewController's selectorView title (view). Your other view controllers don't need to know anything about that view.
This is a good design approach in general. Anytime you have a control that should only appear on one view controller's navigation bar, you want to make it a part of that view controller's navigationItem (titleView, or left/right bar button items.) iOS will display the control when it presents that view controller, and hide the control when that view controller is no longer the top view controller in the navigation controller stack.
As for the 64-pixel height issue, it's likely related to some complexity in the rootViewController hierarchy that shouldn't be there.
In iOS 7/8, a view's content, by default, appears under a translucent navigation bar. Apple freely managed this for you, by insetting the first view of the view hierarchy.
From your code, it appears that you're trying to "hide" or "show" the (un)selected viewController's view.
Each view controller should have a view it controls. A view controller shouldn't be trying to control other view controller's views, or adding other view controller's views to its own view hierarchy.
Here's Apple's recommended way to approach this. Use a containerView in your rootViewController. The whole purpose of a container view is to encapsulate a view controller within a view. As your selectorView changes which view to show, you have your container view transition from one view controller to the other. (If you're not familiar with how to do that, check out this answer.)
Pin the containerView to the rootViewController's view, so Auto Layout can size it for you.
Your view hierarchy now looks like view -> containerView, instead of view -> hidden view of unselected view controller, shown view of selected view controller. Apple can adjust the first view's inset, and nothing gets incorrectly offset (by the height of the navigation control).
Update:
This question talks about scrollViewInsets and how they can be set on a view-controller-by-view-controller basis. If you do have a view controller, and you don't want its content to appear under a bar, uncheck that box.
But the best way to handle this is to "standardize" your UI, so it isn't varying from view to view. Either make the bar always be translucent, or not always be translucent. This makes transitions less "jarring" for the users.
I know this question has been asked several times and the solutions I have seen have been very helpful. But since i have 2 conflicting requirements, I am a little stranded and hoping to find some help.
So here are the requirements:
We have multiple View controllers out of which only one needs to be full screen (without status bar on the top).
The other view controllers need to show a black status bar with a dark gray navigation bar
The First View controller is embedded in a navigation controller.
As recommended in some of the other posts, I did the following
Set UIViewControllerBasedStatusBarAppearance to NO
Added this code in app delegate
CGRect frame = [[UIScreen mainScreen] bounds];
self.window.frame = CGRectMake(0,20,frame.size.width, frame.size.height-20);
self.window.bounds = self.window.frame;
It works fine if I only stay in those View controllers that have the status bar.
The moment I open the FULL screen view controller, that VC is cut off on the top as shown here.
Additionally when I come back to the Main view controller, now thats shifted up as well and the title bar is where the status bar was showing.
I have tried to push the views back down by resetting the view.frame and requesting layout but it doesnt take effect.
Any suggestions on how to resolve this?
Don't change self.window.bounds in app delegate. Instead, in your view controllers try something like this:
-(void)viewWillAppear:(BOOL)animated
{
[self.navigationController setNavigationBarHidden:YES/NO animated:YES];
[self setNeedsStatusBarAppearanceUpdate]; // For showing/hiding status bar
[super viewWillAppear:animated];
}
- (BOOL)prefersStatusBarHidden {
return YES/NO;
}
You will have different frames for the view in ViewDidLoad according to whether status bar and navigation bar are there.
In a viewController I programmatically create a UIView that has the same height of the screen. The problem is that navigation bar is still visible and clickable, but I want it to go under the new view. How can I do that?
EDIT: this is a screenshot of what I have now
Not sure if this is what you actually want, since hiding it is a quite acceptable thing to do. However you can hide the rightButtonItem and disable the left one:
self.navigationItem.rightBarButtonItem = nil;
self.navigationItem.backBarButtonItem.enabled = NO;
And to get back your right bar button, if you need it again somewhere:
self.navigationItem.rightBarButtonItem = self.*whatever*ButtonItem;
See if that works. I'm away from my Mac at the moment, so can't check it myself.
Right now you have taken navigation controller as a root view
controller (Maybe),In this case navigation controller overlaps the
UIVewController's view that's why it comes on the view so you need to
hide the Navigation controller.
What about making it hidden?
self.navigationController.navigationBarHidden = YES;
my app is structured as follow: UITabBarController > UINavigationController > ViewControllerOne > ViewControllerTwo.
the UINavigationBar has at the bottom the tab bar, now when the user navigates into the second view controller, i want to be able to hide the tab bar and replace is with a tool bar. i tried this code:
[self.navigationController.tabBarController.tabBar setHidden:YES];
[self.navigationController.toolbar setHidden:NO];
when i run the app the tab bar is hidden but the toolbar doesn't appear. plus, since the last VC is a table view controller, when i scroll through the cells there is a white gap between the table and the bottom of the view. how can i fix that?
That won't work because when you hide the tab bar like that the subviews won't be adjusted properly (that's why you get the white space). You'll have to use
self.hidesBottomBarWhenPushed = YES;
In your init method or awakeFromNib... and then
[self.navigationController setToolbarHidden:NO animated:YES];
In the viewDidLoad for example.
That way the tab bar controller's view is going to layout correctly it's subviews when you hide the tab bar. Just remember to call self.hidesBottomBarWhenPushed = NO; in your first view controller otherwise the tab bar is still going to be hidden when the second view controller is popped from the navigation stack.
Try to assigning toolbar with appropriate frame and adding it to self.tabBarController.view
I have a custom tab bar controller subclass and instead of a tab bar, I use a custom UIView.
The problem is that I cannot get my view controllers to appear. I see a white screen and the "tab" if I call
[super setViewControllers:]
I get really odd artefacts as far as appearance goes.
So instead I tried setting the selectedViewController directly. I've kind of drawn a blank. Any help would be greatly appreciated.
Can you tell me how you are having a custom view for tabs..
Have u removed tabBar & added ur custom tabView.? and keep in mind if remove your tabBar the whole tabBarController will be removed..
So you need to just hide the tabBar from tabBarController and add ur custom UIView in place of tabBar and everything works fine. You have to select the tab index programatically as per the button selection in your custom view.
You can use view Controller containment concept in order to implement custom tabbar.
[self addChildViewController:content]; // 1
content.view.frame = [self frameForContentController]; // 2
[self.view addSubview:self.currentClientView];
[content didMoveToParentViewController:self]; // 3
You can also use my custom control
Custom Tabbar Control