In the View Controller, I set the navigation bar so that
self.navigationController.navigationBar.hidden = YES;
However, I am running into the issue that whichever way my UIViews are laid out in Storyboard, all the UIViews at runtime are moved down 64px. Is there a way that I could set so that both the NavBar is hidden, and that it does not affect how the UIViews are laid out on screen?
Thanks!
Usually , I use this to hide navigationBar.
[self.navigationController setNavigationBarHidden:YES];
While,
self.navigationController.navigationBar.hidden = YES;
Is the property for UIView, this is a method for UINavigationController.
I am developing iOS app using Storyboards using iOS 7 with deployment target 5.1.
I have 4 UITableViews in one view controller, all have 1/3 width and 100% height of screen. One is always off-screen (they're moving left-right from time to time). I want them to display under UINavigationBar provided by UINavigationController.
I have set everything up in Storyboard, but XCode formatted only left most table (by formatted I mean that content of UITableView starts at the end of UINavigationBar. Other tables start displaying content under UINavigationBar.
I do not have any code for setting up tables, only UITableViewControllerDataSource and UITableViewControllerDelegate methods in my view controller.
As you can see in the screen shot, it's not even displaying prototype table cells, because they're under navigation bar.
How to set this right (in Storyboard or programmatically)?
I want content to appear under the navigation bar, but also to start below the bar and go under only when scrolled down.
seen that this problem is only with ios7, I can try to suggest an options:
-first:
click in storyboard on UIViewController which contains UITableView and as you can see the image I uploaded, uncheck the "under top bars" beside "Extend Edges".
if this does not work, (this is to not make the translucent NavigationBar) try:
-(void)viewWillAppear:(BOOL)animated {
NSString *ver = [[UIDevice currentDevice] systemVersion];
int ver_int = [ver intValue];
if (ver_int < 7) {
}
else {
self.navigationController.navigationBar.translucent = NO;
}
}
Try to use following code in your view controller.
if ([self respondsToSelector:#selector(edgesForExtendedLayout)])
self.edgesForExtendedLayout = UIRectEdgeNone;
Or put transparent view in table.tableHeaderView. With height of that view equal to height of navigation bars.
I have a view controller in my app that has a navigation bar dragged on it in the storyboard. It was working fine in the iOS 6 but in iOS 7 it look like this:
The status bar and the navigation bar should no collide with each other. I have seen a lot of such questions on the stack overflow but they didn't of much help to me.
Some questions say that i should use this "self.edgesForExtendedLayout = UIRectEdgeNone;" but it didn't work. Some say i should remove the navigation bar and embed it inside the navigation controller that i cannot do due to the way my program is implemented. Some solutions suggests to use the view bounds and all but it didn't work for me as well.
What is the one thing that can help me resolve this issue. Thanks in advance!
UPDATE: I have embedded the view controller inside a uinavigation controller. Removed the navigation bar that was earlier manually added in it. Now it looks ok in the storyboard but when i run it, it shows the following:
It is showing text from another view controller that is currently behind it that is its parent view controller. Means its transparent now. Can anyone point out what i am doing wrong?
The latest version of the iOS has brought many visual changes and from a developer's point of view, the navigation and status bar are two noticeable changes.
The status bar is now transparent and navigation bar behind it shows through. The navigation bar image can even be extended behind the status bar.
First of all, if you are a beginner and have just started iOS development and are confused the way status bar and navigation bar is working, you can simply go through a blog post HERE that i found very useful. It has all the information related to navigation and status bar in iOS 7.
Now coming to the answer of your question. First of all i can see two different problems. One is that your status bar and navigation bar are both kind of colliding with each other as shown by you in the question with an image.
PROBLEM: Well the problem is that your have earlier dragged a navigation bar in your view controller which was working in iOS 6 correctly but with the arrival of iOS 7 SDK, this approach is resulting in status bar and navigation bar overlapping with each other.
SOLUTION to First Problem: You can either use UIBarPositionTopAttached or you can use view bounds and frames, i can also suggest and link you to Apple's documentation and bla bla bla but that would take some time for you to solve the issue.
The best and the most easiest way to solve this issue is to just embed your view controller inside a navigation controller and thats it. You can do it by just selecting the view controller and going to Editor > Embed In > Navigation Controller. (If there is any content on your old navigation bar, you can first drag it down, embed the view controller in navigation controller and then move the bar buttons on the new navigation bar and then delete the old navigation bar)
SOLUTION to Second Problem: This solution is for your specific question that you have mentioned in the update and is not for the general public reading this. As you can see that navigation and status bar is not visible and a transparent area is showing the parent view controller. I am not really use why you are facing this issue but most probably because of some third party library like ECSlidingView or any other is involved. You can select this view controller in your storyboard and set the background color of the view to be the same as your navigation bar. This will stop showing the parent view controller behind and your navigation bar and status bar will start showing. Now you can cover the rest of your view controller with text view or what ever your are using in it.
Hope this helps!
The navigation bar is too close to the status bar because starting in iOS 7, the status bar is more of an overlay over the whole view controller's view. Since your navigation bar is at (0, 0), the status bar will show on top of the navigation bar. To solve this, simply move the navigation bar down (or, as others have said), create a constraint between the navigation bar and the topLayoutGuide.
When you do that, you will see that there is now a 20 point gap between the navigation bar and the top of the screen. That's because you just moved the navigation bar down 20 points. "But UINavigationController can do it right!" Absolutely, and it does so by implementing UIBarPositioningDelegate on your view controller. This is a one-method protocol that should be implemented like this:
- (UIBarPosition)positionForBar:(id<UIBarPositioning>)bar {
return UIBarPositionTopAttached;
}
After adding your view controller as the delegate for the navigation bar, you'll notice the navigation bar is still shifted down 20 points, but its background will extend up underneath the status bar, just like in UINavigationController.
Another thing you're seeing is that the navigation bar is translucent, meaning anything underneath the navigation bar will be visible to some extent. The translucent property on UINavigationBar is set to YES by default on iOS 7. Before iOS 7, the default was NO.
you can simply do this:
1) add a constrain between the Navigation Bar and Top Layout Guide (select navigationBar, hold ctrl key and go to Bottom Layout Guide, unhold ctrl key)
2) select vertical spacing:
3) set constant to 0:
Result:
UPDATE
In your AppDelegate file you can add this:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool
{
// Prevent Navigationbar to cover the view
UINavigationBar.appearance().translucent = false
}
I suggest you in your viewDidLoad method you try:
self.navigationController.navigationBar.translucent = NO;
(by default it is yes now)
https://developer.apple.com/library/ios/documentation/uikit/reference/UINavigationBar_Class/Reference/UINavigationBar.html#//apple_ref/occ/instp/UINavigationBar/translucent
This works for me i hope you also have same luck :).
Add below code in your view.
-(void) viewDidLayoutSubviews
{
CGRect tmpFram = self.navigationController.navigationBar.frame;
tmpFram.origin.y += 20;
self.navigationController.navigationBar.frame = tmpFram;
}
It basically change location of navigation bar.
This is new feature with IOS7. Instead of staring at 20 px navigation bar in IOS7 staring at 0 px. As a solution shift the whole view downwards to 20 px or you can use image for navigation bar with height 64px.
In case it still helps someone, this is what worked for me for moving the Navigation Bar little bit down in ios 7 and above:
-(void)viewWillLayoutSubviews
{
float iosVersion = 7.0;
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= iosVersion) {
// iOS 7+
CGRect viewFrame = self.view.frame;
viewFrame.origin.y += 10;
self.view.frame = viewFrame;
}
}
On a device with ios 6.1 and below the Navigation Bar will be unchanged, as it was before.
And this is what I used to make the contents of the Status Bar lighter:
-(UIStatusBarStyle)preferredStatusBarStyle{
return UIStatusBarStyleLightContent;
}
If your UIViewController is NOT in a UINavigationController and you're using UIStoryBoard, you can set the "iOS 6/7 Deltas" to 20 for the delta Y, for every subview that needs to be offset from the UIStatusBar.
Using Swift:
As #Scott Berrevoets said in his answer you need to implement the method positionForBar in the protocol UIBarPositioningDelegate, but as the UINavigationBarDelegate protocol implements this protocol :
public protocol UINavigationBarDelegate : UIBarPositioningDelegate {
...
}
You only need to set the delegate of the UINavigationBar you set using Storyboard and implement the method and it's done, like in this way:
class ViewController: UIViewController, UINavigationBarDelegate {
#IBOutlet weak var navigationBar: UINavigationBar!
override func viewDidLoad() {
super.viewDidLoad()
self.navigationBar.delegate = self
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func positionForBar(bar: UIBarPositioning) -> UIBarPosition {
return UIBarPosition.TopAttached
}
}
NOTE:
It's worth to mention if you set the position of the y-axis of the navigation bar, let's say to 40 from the top, then it will extend underneath to the top from this position, to simulate the behaviour of the UINavigationController you need to set to 20 from the top.
I hope it will help you.
First, set UIViewControllerBasedStatusBarAppearance to NO in Info.plist.
Then, in AppDelegate's application:didFinishLaunchingWithOptions: method add:
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) {
[application setStatusBarStyle:UIStatusBarStyleLightContent];
self.window.clipsToBounds = YES;
self.window.frame = CGRectMake(0, 20, self.window.frame.size.width, self.window.frame.size.height-20);
self.window.bounds = CGRectMake(0, 20, self.window.frame.size.width, self.window.frame.size.height);
}
return YES;
In iOS 7 app occupies 100 % of screen size.This not a problem .
http://www.doubleencore.com/2013/09/developers-guide-to-the-ios-7-status-bar/
in earlier iOS window start after statusbar and in iOS 7 window starts from 0px in earlier version view height is 460 (iPhone 4s and earlier) and 548 (iPhone 5) but in iOS 7 view height is 480 (iPhone 4s and earlier) and 568 (iPhone 5 and later) so you have to start view arrangement after 2o px or you have to start view from 20px.
you can write below code in rootviewcontroller or in all viewcontroller for set view from 20px
#define IOS7_HEIGHT 64
- (void)viewDidLayoutSubviews {
NSString *currSysVer = [[UIDevice currentDevice] systemVersion];
if ([currSysVer compare:#"7.0" options:NSNumericSearch] != NSOrderedAscending)
{
CGRect frame=[self.view frame];
if (frame.origin.y!=IOS7_HEIGHT) {
frame.origin.y = IOS7_HEIGHT;
frame.size.height -= IOS7_HEIGHT;
[self.view setFrame:frame];
[self.view layoutSubviews];
}
}
}
here height is 64 because 20 for statusbar and 44 for navigationbar.
try below code it will help you. and your problem will be solved.
For the ones who are having problems implementing #Masterfego 's solution (which is also the official, but I have had problems with Xcode 6.3 and automatic constraints), this is what I did:
I have a UIViewController with an added Navigation Bar. I selected the NAvigation bar and added a height constraint of 64px. We later see a warning that the navbar will be higher (but this is what we do). Finally, you can see that the Status bar looks nice and has the same color as the navbar. :)
PS: I can't post images yet.
You can probably create constraints that are attached to the top layout guide to specify the navigation bar's position relative to the status bar. See the iOS 7 UI Transition Guide: Appearance and Behavior section for more information about using the layout guides.
it's the best answer.
But I wanted know how to use a Storyboard and dragged UINavigationBar on it.
When I implemented the delegate method, and set the return result to UIBarPositionTopAttached, it did not work.
- (void)viewDidLoad{
self.navigationbar.delegate = self;
}
- (UIBarPosition)positionForBar:(id<UIBarPositioning>)bar{
NSLog(#"Got it");
//
// CGRect frame = self.navigaitonBar.frame;
//
// frame = CGRectMake(0, 20, CGRectGetWidth(frame), CGRectGetHeight(frame));
// self.navigaitonBar.frame = frame;
//
// NSLog(#"frame %f",frame.origin.y);
return UIBarPositionTopAttached;
}
If you use Xcode 6 and Swift, you can make it:
Open to info.plist file of your app.
Add a ViewControllerBasedStatusBarAppearance Boolean key if it is not existing and assign value “NO”.
Add “Status bar style” key if it is not existing and select “Opaque black style” value to it.
I was facing issue when full screen ModalViewController was opening from my MainViewController, NavigationBar position was getting changed when user was coming back to MainViewController from ModalViewController.
Issue which I noticed is status bar height was not getting included when user came back to MainViewController. Please debug and check origin of your NavigationBar before and after coming back to your ViewController.
// This method will adjust navigation bar and view content.
private func adjustNavigationControllerIfNeeded() {
var frame = self.view.frame
let navigationBarHeight = self.navigationController!.navigationBar.frame.size.height
if(frame.origin.y == navigationBarHeight && !UIApplication.shared.isStatusBarHidden) {
// If status bar height is not included but it is showing then we have to adjust
our Navigation controller properly
print("Adjusting navigation controller")
let statusBarHeight = UIApplication.shared.statusBarFrame.height
frame.origin.y += statusBarHeight // Start view below navigation bar
frame.size.height -= statusBarHeight
self.view.frame = frame
self.navigationController!.navigationBar.frame.origin.y = statusBarHeight // Move navigation bar
}
}
And call it from viewWillAppear method -
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
self.adjustNavigationControllerIfNeeded()
}
In storyboard, in a view controller I tried add a navigation bar under the status bar, running it, it is transparent and shows a label that's supposed to be blurred, like by navigation bar.
But when placing the same view controller embedded in a navigation view controller, the underneath background image could be blurred, which is my intention.
What are these two way different results? What need to do for the firs method to make status bar blur?
Thanks!
In iOS 7 the status bar is transparent by default. The blurring you're seeing when there's also a navigation bar is actually created by the navigation bar. So to create the effect you're looking for without a navigation bar, you need to position a view that produces a blurring effect beneath the status bar.
For reference, add your view with a frame provided by:
CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];
I know this is old, just for reference, I solved this by setting self.navigationController.navigationBar.clipToBounds = NO
I haven't tested this completely, but go to your plist file and check the following settings:
"View controller-based status bar appearance": If this is set to "Yes", then it should display a status bar that is unique to each View Controller, which might be what you need.
"Status bar style": You may set this to three different styles: Opaque black, Gray, and Transparent black.
Let me know if this worked for you.
UINavigationController will alter the height of its UINavigationBar to either 44 points or 64 points, depending on a rather strange and undocumented set of constraints. If the UINavigationController detects that the top of its view’s frame is visually contiguous with its UIWindow’s top, then it draws its navigation bar with a height of 64 points. If its view’s top is not contiguous with the UIWindow’s top (even if off by only one point), then it draws its navigation bar in the “traditional” way with a height of 44 points. This logic is performed by UINavigationController even if it is several children down inside the view controller hierarchy of your application. There is no way to prevent this behavior.
It looks like you are positioning your view hierarchy in the first example starting at the point (0,20). Also, is that a UIToolbar or a UINavigationBar? If it's the latter, why are you using it by itself and not using it inside of UINavigationController?
If you do not use UINavigationController and are instead using custom view controller containers, you'll need to position your views accordingly.
See this answer for a thorough explanation.
I have similar UI design and based on Matt Hall answer and some article I've googled, I come up with something like this:
- (void)viewDidLoad {
[super viewDidLoad];
if (NSFoundationVersionNumber>NSFoundationVersionNumber_iOS_6_1) {
CGRect statusBarFrame = [self.view convertRect: [UIApplication sharedApplication].statusBarFrame fromView: nil];
UIToolbar *statusBarBackground = [[UIToolbar alloc] initWithFrame: statusBarFrame];
statusBarBackground.barStyle = self.navBar.barStyle;
statusBarBackground.translucent = self.navBar.translucent;
statusBarBackground.autoresizingMask = UIViewAutoresizingFlexibleBottomMargin | UIViewAutoresizingFlexibleWidth;
[self.view addSubview: statusBarBackground];
}
}
Where self.navBar points to navigation bar added in storyboard. This is needed only in case when it runs on iOS7 that is why I've added this condition (my app has to support iOS5).
This works like a charm.
alternative approach (enforce status bar size) is also good:
- (void)viewDidLoad {
[super viewDidLoad];
if (NSFoundationVersionNumber>NSFoundationVersionNumber_iOS_6_1) {
CGRect statusBarFrame = [self.view convertRect: [UIApplication sharedApplication].statusBarFrame fromView: nil];
self.navBar.frame = CGRectUnion(statusBarFrame, self.navBar.frame);
}
}
I've found another solution I think this is best since it involve only storyboard and no code is required.
Switch storyboard view to 6.1 mode (view as: iOS 6.1 and Earlier)
Select problematic UINavigationBar
in size section add 20 delta height in "iOS6/7 Deltas"
Switch back view to 7.0 mode (view as: iOS 7.0 and Later), and be happy with result.
when you embed view controller with navigation view controller that time you will see navigation bar to all the view controller you are pushing to from same view controller. In your first case you are adding the navigation bar object, insted of that you can select view controller from storyboard , go to attributes inspector tab & from their select Top bar as translucent navigation bar.
I use UINavigationController inside UITabBarController and one of the screens in my navigationcontroller is a UIImageView. When I want to show that image full screen I have to hide the navigation bar and tab bar. I'm able to hide the navigation bar correctly but when I hide the tab bar, it leaves 50px of white space. Any suggestion?
Thank you for all
I have found the best solution to my problem .
MyImageViewController.hidesBottomBarWhenPushed = YES ;
[self.navigationController pushViewController:MyImageViewController animated:YES];
It gave me the response I wanted .
Thank you for your share
I think you can show it on model view controller.
Put modelviewcontroller over tabbarcontroller.
FullImageView*objFullImageView = [[FullImageView alloc] initWithNibName:#"FullImageView" bundle:nil];
objFullImageView.image = OriginalImage;
UINavigationController *tempNav = [[[UINavigationController alloc] initWithRootViewController:objFullImageView] autorelease];
[objFullImageView release];
self.tabBarCtrl.modalPresentationStyle = UIModalPresentationPageSheet;
[self.tabBarCtrl presentModalViewController:tempNav animated:YES];
FullImageView.h
{
UIImage *image;
}
#property(nonatomic, retain) UIImage *image;
FullImageView.m
#synthesize image;
viewDidLoad /ViewWillApper
{
//Set image in your UIImageView
}
I solved this problem by changing constraints.
I had a view in my tabbar viewController whose bottom constraint was given (=0) from Safe Area.bootom. This was causing white space at the bottom. Changing this constraint to (=0) from Superview.bottom solved my proble.
You can increase the height of your image view frame.
After hours of research, this thread resolved my blank space issue when hidding the tabbar: hiding TabBar when rotating iPhone device to landscape
It's been quite a long time since the original post, but I thought I could jump in and add my thoughts.
Another option would be to set the option Hide bottom bar on push directly within the Storyboard for all those controllers which are pushed within a navigation controller inside a tabbar controller. This works within iOS7 simulator/targets as well, both at 3.5" and 4".