I was just wondering how I can hide the tab item in the Tab Bar Controller for the current view controller which is selected
Remove intended index from controllersArray ex. (1)
NSMutableArray *controllersArray = [NSMutableArray arrayWithArray:self.tabBar.viewControllers];
[controllersArray removeObjectAtIndex: 1];
[self.tabBar setViewControllers:controllers animated:YES];
Check for this answer also I found this similar from your question Hide tab bar item and aligning other tab items
Hope this helps you.!!
Firstly, I don't think it's possible to hide a UITabBarItem - It inherits from UIBarItem but there is no hidden property - UIBarItem Documentation
You could try comparing the tab bars selectedViewController property against your current view controller? - Something like below might work..
if (self.tabBarController.selectedViewController == self) {
// Do Stuff
}
But even then I think you are going to find it hard to hide the tab bar item itself.
UIView *parent = self.tabBarController.tabBar.superview; // UILayoutContainerView
UIView *content = [parent.subviews objectAtIndex:0]; // UITransitionView
UIView *window = parent.superview;
[UIView animateWithDuration:0.2
animations:^{
CGRect tabFrame = self.tabBarController.tabBar.frame;
tabFrame.origin.y = CGRectGetMaxY(window.bounds);
self.tabBarController.tabBar.frame = tabFrame;
content.frame = window.bounds;
}];
Related
I hide my tab bar like so:
self.tabBarController.tabBar.hidden = YES;
And because now there is a black bar where it once stood I stretch the view which is a UIWebView on top(or is it under?) that empty space. The UIWebView is in a UIViewController. I do that with a constraint which by default is like so:
The code for the constraint:
if(self.tabBarController.tabBar.hidden){
self.webviewBottomConstrain.constant = -self.tabBarController.tabBar.frame.size.height;
}else{
self.webviewBottomConstrain.constant = 0;
}
However if I tap the device on the place where the TabBar was it will not execute. It is as if there is something invisible there with the size of the tab bar. I have also tried hiding it the way this thread sugests. Still the same result.
Update: It seems that when you tap on the invisible tab bar the tap is recognized by the tab bar and not by the view that is visible under the tab bar
self.extendedLayoutIncludesOpaqueBars = YES;
this will solve you problem
You hide your tabBar by setting its hidden property to NO? Try setting it to YES. Unless I am misunderstanding what you are trying to do, it seems like your tab bar is not hidden with that code.
Another thing I would check is to see if User Interaction Enabled is checked for the web view. If it is not, that can seem like there is something invisible blocking you from interacting with your view.
Well I am using quite ugly hack to fix this. I am hiding the tab bar in another way now:
if (shouldShow) {
self.hidesBottomBarWhenPushed = NO;
UIViewController *someView = [[UIViewController alloc] init];
[self.navigationController pushViewController:someView animated:NO];
[self.navigationController popToViewController:self animated:NO];
} else if (shouldHide) {
self.hidesBottomBarWhenPushed = YES;
self.tabBarController.hidesBottomBarWhenPushed = YES;
self.navigationController.hidesBottomBarWhenPushed = YES;
UIViewController *someView = [[UIViewController alloc] init];
[self.navigationController pushViewController:someView animated:NO];
[self.navigationController popToViewController:self animated:NO];
}
I do need that random view because I cannot push the view on itself.
I had the same issue when hiding the tab bar by moving it offscreen to the bottom. My custom UITabBarViewController was intercepting the touch events in the area vacated by the tab bar, so instead of changing the frame of the tab bar to move the tab bar offscreen, I extended the height of my tab bar view controller so that the tab bar still moved offscreen, but the child view above the tab bar now filled that space. This allowed the touches to be received by the child view.
As you may see with view hierarchy instrument, UITabBar is not directly blocking your tap, but your current view controller's view height is not full screen:
So, the tap doesn't response because your finger's y position is higher than view's maxY.
Code like this (inside your UITabBarController) will expand your view's height, according to tabbar visibility, and all tap events will work correctly.
func updateTabBarAppearanceWithDegree(_ degree: CGFloat) {
let screenHeight = UIScreen.main.bounds.size.height
let tabBarHeight = self.tabBar.frame.size.height
self.tabBar.frame.origin.y = screenHeight - tabBarHeight * degree
self.tabBar.alpha = degree
let currentNavigation = self.selectedViewController as? UINavigationController
if let currentTopView = currentNavigation?.viewControllers.last?.view {
currentTopView.frame.size.height = self.tabBar.frame.origin.y
}
}
I am building an iOS 7-only app. I am trying to set a UISearchDisplayController into the navigation bar.
I have it set up like this: In the storyboard, I added a "Search Bar and Search Display Controller" to my view controller's view, and set it at (0,0) relative to the top layout guide. I set constraints to pin to left, top and right. (I played with the constraints, i removed them completely, it doesn't matter) On top of that I have my Table view. When I added the search bar to the view in the storyboard, it automatically setup outlets for searchDisplayController and searchBar delegate. In code I have self.searchDisplayController.displaysSearchBarInNavigationBar = YES; I have two problems:
1) Without any buttons showing for the search bar (Interface builder -> select search bar -> Options: none selected) the search bar is in the middle of the screen:
If I click on the navigation bar, it starts editing the search bar:
notice also that the dark overlay appears to be offset from the navigation bar. It seems to me that the space is the same height as the navigation bar. Like it has been shifted down by that much. Also, when it displays the search results, the top of the content view is shifted down by the same amount (more pictures follow), which brings me to the second problem.
2) I messed around with it for a while and decided to check the option to have it show the cancel button. Now I have the search bar embedded in the nav bar correctly, but the overlay is still shifted down:
Again, when the search results table view appears, it is shifted down by the same amount (notice the scroll bar on the right side):
Even more bizarrely, I set a border on the search display controller's tableview layer, and it appears correct:
I have never used the UISearchDisplayController before and I unfamiliar with how to set it up, but functionally it works fine. I have read some other similar posts but the only advice is to hack it up by adjusting frames and setting manual offsets. I'd prefer to know what is causing this, is it a bug? Something I'm doing wrong? If it's a bug I can wait for a fix. It seems like such a basic thing that a thousand people must have done without any problem so I feel like I'm not setting it up correctly somehow. Thanks for you input.
I remember running into the same exact problem that you are observing.There could be a couple of solutions you can try.
If you are using storyboards
You should click on the view controller or TableView Controller which you have set up for your tableview and go to its attribute inspector and look under ViewController section and set the Extend Edges section to be under Top Bars.
If you are not using storyboards you can manually set the settings using the viewcontrollers edgesForExtendedLayout property and that should do the trick. I was using storyboards.
In my case, using storyboards, I had to check both Under Top Bars and Under Opaque Bars and leave Under Bottom Bars unchecked.
In my case, I actually had to uncheck all the Extended Edges boxes (essentially the same as programmatically setting Extended Edges to UIRectEdgeNone I believe) in my Storyboard in order to stop my search bar from offsetting itself. Thank you guys!
definesPresentationContext = true
override func viewDidLoad() {
super.viewDidLoad()
searchController = UISearchController(searchResultsController: nil)
searchController.searchResultsUpdater = self
searchController.hidesNavigationBarDuringPresentation = false
searchController.dimsBackgroundDuringPresentation = true
searchController.searchBar.searchBarStyle = UISearchBarStyle.Prominent
self.tableView.tableHeaderView = searchController.searchBar
definesPresentationContext = true
or see UISearchBar presented by UISearchController in table header view animates too far when active
My problem was just Adjust scroll view inserts. After change to false I didn't have problem
I had a same problem. And I solve this issue with adding view object under the tableview.
Add new ViewController on the Storyboard
Drag TableView to the new VC
Drag Table Cell to the TableView
Make a Connection for TableView DataSource, TableView Delegate to the new VC
I had very similar behavior happening. For me, the solution was to uncheck Extend Edges Under Top Bar in the storyboard settings for the parent view controller (I've turned off transparent navbars, not sure if that effects anything). If you're not using storyboard, you have to set [UIViewController edgesForExtendedLayout].
From the Apple docs:
This property is only applied to view controllers that are embedded in containers, such as UINavigationController or UITabBarController. View controllers set as the root view controller do not react to this property. Default value is UIRectEdgeAll.
Unfortunately none of the above solutions worked for me, I'm using a UITableViewController.
This link helped:
http://petersteinberger.com/blog/2013/fixing-uisearchdisplaycontroller-on-ios-7/
I put the code below for convenience:
static UIView *PSPDFViewWithSuffix(UIView *view, NSString *classNameSuffix) {
if (!view || classNameSuffix.length == 0) return nil;
UIView *theView = nil;
for (__unsafe_unretained UIView *subview in view.subviews) {
if ([NSStringFromClass(subview.class) hasSuffix:classNameSuffix]) {
return subview;
}else {
if ((theView = PSPDFViewWithSuffix(subview, classNameSuffix))) break;
}
}
return theView;
}
- (void)correctSearchDisplayFrames {
// Update search bar frame.
CGRect superviewFrame = self.searchDisplayController.searchBar.superview.frame;
superviewFrame.origin.y = 0.f;
self.searchDisplayController.searchBar.superview.frame = superviewFrame;
// Strech dimming view.
UIView *dimmingView = PSPDFViewWithSuffix(self.view, #"DimmingView");
if (dimmingView) {
CGRect dimmingFrame = dimmingView.superview.frame;
dimmingFrame.origin.y = self.searchDisplayController.searchBar.frame.size.height;
dimmingFrame.size.height = self.view.frame.size.height - dimmingFrame.origin.y;
dimmingView.superview.frame = dimmingFrame;
}
}
- (void)setAllViewsExceptSearchHidden:(BOOL)hidden animated:(BOOL)animated {
[UIView animateWithDuration:animated ? 0.25f : 0.f animations:^{
for (UIView *view in self.tableView.subviews) {
if (view != self.searchDisplayController.searchResultsTableView &&
view != self.searchDisplayController.searchBar) {
view.alpha = hidden ? 0.f : 1.f;
}
}
}];
}
// This fixes UISearchBarController on iOS 7. rdar://14800556
- (void)correctFramesForSearchDisplayControllerBeginSearch:(BOOL)beginSearch {
if (PSPDFIsUIKitFlatMode()) {
[self.navigationController setNavigationBarHidden:beginSearch animated:YES];
dispatch_async(dispatch_get_main_queue(), ^{
[self correctSearchDisplayFrames];
});
[self setAllViewsExceptSearchHidden:beginSearch animated:YES];
[UIView animateWithDuration:0.25f animations:^{
self.searchDisplayController.searchResultsTableView.alpha = beginSearch ? 1.f : 0.f;
}];
}
}
- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller {
[self correctFramesForSearchDisplayControllerBeginSearch:YES];
}
- (void)searchDisplayControllerDidBeginSearch:(UISearchDisplayController *)controller {
[self correctSearchDisplayFrames];
}
- (void)searchDisplayControllerWillEndSearch:(UISearchDisplayController *)controller {
[self correctFramesForSearchDisplayControllerBeginSearch:NO];
}
- (void)searchDisplayController:(UISearchDisplayController *)controller didShowSearchResultsTableView:(UITableView *)tableView {
// HACK: iOS 7 requires a cruel workaround to show the search table view.
if (PSPDFIsUIKitFlatMode()) {
controller.searchResultsTableView.contentInset = UIEdgeInsetsMake(self.searchDisplayController.searchBar.frame.size.height, 0.f, 0.f, 0.f);
}
}
Go to storyboard.
Click on the view controller.
Go to attribute inspector under the ViewController section.
Set the Extend Edges section to be Under Top Bars and Under Opaque Bars.
Make sure to un-check Under Bottom Bars.
I have an iOS 7 application in XCode 5.0 that exhibits some strange behavior when tapping the search bar (UISearchBar).
My application has a Navigation Controller, and a Tab Bar Controller. Here is an example of what my Main.Storyboard looks like:
[Navigation Controller] -> [Tab Bar Controller] -> [Tab Item #1]
|
-------------> [Tab Item #2]
Each [] is a view controller
When I launch my application, I see the Tab Item 1 with the UISearchBar as shown in the screenshot below:
When I tap the UISearchBar, the search bar slides up to the top of the screen, but the Navigation Bar does not hide, and the view does not "slide up". This causes the app to look like this:
When I delete the Tab Bar Controller from the storyboard and connect the Navigation Controller directly to Tab Item #1 the Navigation Bar hides as expected.
How can I make the Navigation Bar hide when tapping the Search Bar? For an example of the functionality I am looking to reproduce, click the search bar under the "Contacts" tab of the default iOS7 "Phone" application.
For swift developers:
func searchBarTextDidBeginEditing(_ searchBar: UISearchBar) {
navigationController?.setNavigationBarHidden(true, animated: true)
}
func searchBarTextDidEndEditing(_ searchBar: UISearchBar) {
navigationController?.setNavigationBarHidden(false, animated: true)
}
This will hide the navigation bar while search bar is active and show it again when search bar is inactive.
You can use the UISearchBar delegate methods to decide when to move the navigationbar out of the screen.
-(void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar{
[UIView animateWithDuration:0.2 animations:^{
CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];
double yDiff = self.navigationController.navigationBar.frame.origin.y - self.navigationController.navigationBar.frame.size.height - statusBarFrame.size.height;
self.navigationController.navigationBar.frame = CGRectMake(0, yDiff, 320, self.navigationController.navigationBar.frame.size.height);
}];
}
-(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar{
[UIView animateWithDuration:0.2 animations:^{
CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];
double yDiff = self.navigationController.navigationBar.frame.origin.y + self.navigationController.navigationBar.frame.size.height + statusBarFrame.size.height;
self.navigationController.navigationBar.frame = CGRectMake(0, yDiff, 320, self.navigationController.navigationBar.frame.size.height);
}];
}
The following line will hide the navigation bar animatedly on activating search bar.
self.searchController.hidesNavigationBarDuringPresentation = true
You can set the top bar in the navigation controller for the list, to none and then add this to your tabBarController code:
self.navigationController.navigationBar.translucent= NO;
In the viewDidLoad method
You can do it with UISearchDisplayController method;
-(void)searchDisplayControllerWillBeginSearch:(mySearchDisplayController *)controller
{
self.searchResultsDataSource = self;
self.searchResultsTableView.delegate = self;
if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1)
{
CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];
[UIView animateWithDuration:0.01 animations:^{
for (UIView *subview in self.searchBar.subviews)
subview.transform = CGAffineTransformMakeTranslation(0, statusBarFrame.size.height);
}];
}
}
-(void)searchDisplayControllerWillEndSearch:(mySearchDisplayController *)controller
{
if (floor(NSFoundationVersionNumber) > NSFoundationVersionNumber_iOS_6_1)
{
[UIView animateWithDuration:0.01 animations:^{
for (UIView *subview in self.searchBar.subviews)
subview.transform = CGAffineTransformIdentity;
}];
}
}
Don't forget create a new class as a type of UISearchDisplayController and implement that code in it.
I solved the problem by adding constraint on Search Bar to Top Layout Guide and set its value to 0 and added a vertical spacing constraint to Search Bar and setting its value to 0;
I realize that this is probably too late to help you, but I ran into the same issue today!
I solved it by fixing the constraints of the search bar. Make sure the search bar has a constraint of 0px for its immediate top neighbor (the nav bar). Also make sure the tableview below the search bar has a constraint of 0px for its immediate top neighbor (the search bar).
Not sure of the exact problem you were facing, but that fixed it for me.
I have a navigation bar based ipad app.
At some point I want to push another view controller into the views controller hierarchy. Then, when the users tabs some button I want to show a leftMenu controller. To do so I have two views:
A content view which has all the content
And a not visible view which is the leftMenu. This one is under the content view.
So when the user presses the button, what Im doing right now is moving the content view and the navigation bar to the right to make the leftMenu visible:
self.navigationController.navigationBar.frame = CGRectMake(271.0, self.navigationController.navigationBar.frame.origin.y, self.navigationController.navigationBar.frame.size.width, self.self.navigationController.navigationBar.frame.size.height);
self.contentView.frame = CGRectMake(271.0, self.contentView.frame.origin.y, self.contentView.frame.size.width, self.contentView.frame.size.height);
This is working, but the first row in the left menu is not "clickable" where the nav bar is supossed to be. Its like the navigation bar is still there capturing the tab events.
Is it correct to do?:
self.navigationController.navigationBar.frame = CGRectMake(271.0, self.navigationController.navigationBar.frame.origin.y, self.navigationController.navigationBar.frame.size.width, self.self.navigationController.navigationBar.frame.size.height);
If not, whats the propper way to achieve what I want?
Heres and image ilustrating what the problem is:
I think it's best to use a custom container controller to do this kind of thing, rather than moving a navigation bar. In IB, this can be set up quite easily. Start with a UIViewController, add a container view to it, and size how you want. Then in the inspector, set its x value to minus its width, which will put it off screen to the left. Then add another container view and size it to be full screen. You can then delete the view controller that you got with that container view, and right drag from the container view to your initial navigation controller (of your already setup UI) to connect it up with an embed segue. The UIViewController that you started with should be made the initial view controller of the storyboard. To move in the side view, I use this code in that custom container controller:
-(void)slideInLeft {
if (isRevealed == NO) {
[UIView animateWithDuration:.6 animations:^{
leftView.center = CGPointMake(leftView.center.x + 100, leftView.center.y);
mainView.center = CGPointMake(mainView.center.x + 100, mainView.center.y);
} completion:^(BOOL finished) {
isRevealed = YES; ;
}];
}else{
[UIView animateWithDuration:.6 animations:^{
leftView.center = CGPointMake(leftView.center.x - 100, leftView.center.y);
mainView.center = CGPointMake(mainView.center.x - 100, mainView.center.y);
} completion:^(BOOL finished) {
isRevealed = NO;
}];
}
}
leftView and mainView are IBOutlets to the 2 container views. I call this method from a button in the main view controller (the root view controller of the navigation controller that's embedded in the large container view):
-(IBAction)callSlideIn:(id)sender {
[(ViewController *)self.navigationController.parentViewController slideInLeft];
}
I found a "fast" way to achieve this (and a bit hacky imo)
I added the leftMenu view to the top view in the views hierachy:
UIWindow* window = [UIApplication sharedApplication].keyWindow;
if (!window)
window = [[UIApplication sharedApplication].windows objectAtIndex:0];
[[[window subviews] objectAtIndex:0] addSubview:self.leftMenu.view];
Now it is les deep than the navigation bar and, of course, its clickable
This is seemingly a bug, but i'm wondering if anyone can think of a workaround.
On iPad, you present a view controller as a UIModalPresentationFormSheet. This view controller is extending UITabBarController and has enough controllers to automatically display the "more" tab bar button. Once you tap on the more button it will display the list correctly, but as soon as you tap on 'edit' it presents the edit view larger then the actual form sheet (cropped inside the form sheet), causing the content to be out of view, including the toolbar with the "done" button. The only way to dismiss is to force quit the app.
To verify that it's not something specific to my app I started a single view project, and presented a simple modal view. This modal view controller extends UITabBarController and has the following init method:
- (id)init {
self = [super init];
if (self) {
self.modalPresentationStyle = UIModalPresentationFormSheet;
NSMutableArray *controllers = [NSMutableArray array];
for (int i = 0; i< 15; i++) {
UIViewController *vc = [[UIViewController alloc] init];
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:vc];
vc.title = [NSString stringWithFormat:#"view %i", i];
[controllers addObject:nav];
}
self.viewControllers = controllers;
}
return self;
}
I also tried adding the modalPresentationStyle to moreNavigationController with no change.
Good day, dizy.
A nice challenge you've made. Here is a solution, maybe it's a bit hardcore, but it works.
I've done as you wrote – subclassed UITabBarController and presented it as a modal view controller. And run into the same problem. When tapping "edit" button in "More" screen UITabBarCustomizeView appears and it's frame is inadequate.
So I've done the following. I've made MyModalTabBarVC a delegate of itself and implemented tabBarController:willBeginCustomizingViewControllers: method:
- (void)tabBarController:(UITabBarController *)tabBarController
willBeginCustomizingViewControllers:(NSArray *)viewControllers
{
UIView *modalView = self.view;
CGRect bounds = modalView.bounds;
UIView *customizationView = [[modalView subviews] objectAtIndex:1];
UIView *customizationNavBar = [[customizationView subviews] objectAtIndex:0];
CGRect navBarFrame = [customizationNavBar frame];
navBarFrame.size.width = bounds.size.width;
customizationNavBar.frame = navBarFrame;
customizationView.frame = bounds;
}
So when this method is called UITabBarCustomizeView is already created. And a wrong frame can be changed manually. If you log po [self.view subviews] at the start you'll get:
(id) $1 = 0x06c6a940 <__NSArrayM 0x6c6a940>(
<UITransitionView: 0xd744ab0; frame = (0 0; 540 571); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0xd744b50>>,
<UITabBarCustomizeView: 0x6c5e570; frame = (0 -384; 768 1004); animations = { position=<CABasicAnimation: 0x6c569a0>; }; layer = <CALayer: 0x6c618d0>>,
<UITabBar: 0xd744110; frame = (0 571; 540 49); autoresize = W+TM; layer = <CALayer: 0xd742b80>>,
)
PS. This solution doesn't fix animation. As you can see from log, corrupted animation is already created and charged. I hope that canceling it and adding a new one, appropriate, will not be a problem.
The modal view's viewController must be causing the glitch.
You could try to:
hide the tab bar while editing and un-hiding it when the done button
is pressed.
create a custom toolbar for the view controller, this could be done
with a UIView, so that it's set always be on top of the view.
resize your individual tabs. Best way to do this is to create your
own custom tab bar with a UIViewController and IBActions connected
to UIButtons with IBOutlets.
Why would you have so many tabs in the modalPresentationStyle? I personally would use push segue instead.
Try pushing to a new set of view controllers that are under their own navigation controller as well. There would be more room for the tab bar. To get back, put a back button in the toolbar that pops the push, or pushes back to the original.