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.
Related
I have an iphone app with 2 ViewControllers . Both screens(viewcontrollers) show a loading screen. I create the loading screen programmatically:
UIView *loadingScreen = [[UIView alloc] initWithFrame:CGRectMake(100,200,144,144)];
loadingScreen.center = CGPointMake(self.view.frame.size.width / 2.0, self.view.frame.size.height / 2.0);
//{.. Other customizations to loading screen
// ..}
[self.view addSubview:loadingScreen];
For some reason, the second viewcontroller's loadingScreen is significantly lower and it isn't centered on the screen. The first viewcontroller works perfectly and is dead center like I want.
The second viewcontroller is a UITableView and it shows the uinavigationbar, whereas the first viewcontroller doesn't show the uinavigationbar. Also, I use storyboard for my app.
I've outputted to the NSLog self.view.frame.size.height and loadingScreen.center in both instances and THEY HAVE THE SAME COORDINATES! So, not sure why it is showing up lower. Any ideas why the second loadingScreen is lower and how to fix? Thanks!
You mention that one screen displays a UINavigationBar while the other does not. When you display a navigation bar, it offsets the rest of your view - in this case by shifting it down.
There are two quick fixes. You can either adjust your center point up by the size of the UINavigationBar (65 pts - unless it's a custom UINavigationBar and you've changed its size) or you can set the "Adjust Scroll View Insets" value to false in the attributes inspector.
The latter is probably the easiest and comes most recommended. Note though, that the top of your UITableView will now be underneath the UINavigationBar.
My final note would be that if you wanted to do it programmatically than in your UITableView's delegate you can call
- (BOOL)automaticallyAdjustsScrollViewInsets
{
return NO;
}
I started building a TableView in my app by using a TableViewController in a storyboard. When you do this, you have a very cool effect when you scroll down your list : the cells moving behind the nav bar get blurred.
Some time later, I had to move from this TableViewController to a ViewController with a TableView inside (I had to add other views at the bottom of the table).
In order to avoid having the first cells hidden by the navigation bar (being over it), I added constraints to the Top and Bottom Layout Guides, and to the left and right edges of the view.
This works fine, but I lost the cool blurred scrolling effect : the cells seem to be disappearing before going behind the navigation bar.
I've seen workarounds with people not using constraints and putting magic numbers in interface builder. I cannot do this, first because I dislike it, and second because I have to be iOS 6 compatible.
What did I miss to be able to benefit again from the blurred navigation bar effect ?
You have to manually adjust the contentInset of the table view and make sure the table view frame origin is 0, 0.
In this way the table view will be below the navigation bar, but there will be some margin between the content and the scroll view edges (the content gets shifted down).
I advise you to use the topLayoutGuide property of the view controller to set the right contentInsets, instead of hard coding 64 (status bar + navigation bar).
There's also bottomLayoutGuide, which you should use in case of UITapBars.
Here is some sample code (viewDidLoad should be fine):
// Set edge insets
CGFloat topLayoutGuide = self.topLayoutGuide.length;
tableView.contentInset = UIEdgeInsetsMake(topLayoutGuide, 0, 0, 0);
By the way, this properties of UIViewController might help you (you should not need to change their default values, but I don't know what your view hierarchy is):
automaticallyAdjustsScrollViewInsets
edgesForExtendedLayout
extendedLayoutIncludesOpaqueBars
The tableView needs to be full screen. That is underneath the top and bottom bars. Note don't use the top and bottom layout guides as they are used for positioning relative to the bars not underneath.
Then you need to manually set the content inset of the tableview. This sets the initial scroll position to under the top bar.
Something like:
CGSize statusBarSize = [[UIApplication sharedApplication] statusBarFrame].size;
CGFloat h=MIN(statusBarSize.width, statusBarSize.height);
UIEdgeInsets e = UIEdgeInsetsMake(self.navigationController.navigationBar.bounds.size.height + h,
0.0f,
0.0f,
0.0f);
self.tableView.contentInset = e;
Not you get this functionality for free when using a tableView controller and the "Automatically Adjust content inset" settings
You probably have the coordinates of your tableView not set to (0, 0) to map to those of the viewController.view.frame or viewController.view.bounds. If you have done that, try setting
self.navigationController.navigationBar.translucent = YES;
UIViewController property edgesForExtendedLayout does the trick. If you are using storyboards just make sure Extended Edges Under Top Bars is on (and it is by default).
If you are creating your view controller programmatically try this:
- (void)viewDidLoad
{
[super viewDidLoad];
self.edgesForExtendedLayout = UIRectEdgeAll;
}
And of course, your table view needs to have proper autoresizing mask/layout constraints
edgesForExtendedLayout is not what you want here, as this will limit the table view underneath the navigation bar. In iOS 7, the view controllers uses fullscreen by default, and the property controlling where the tableview content starts is automaticallyAdjustsScrollViewInsets. This should be YES by default, so check if it is somehow set to NO, or try setting it explicitly.
Check this answer for a good explanation on how this works:
https://stackoverflow.com/a/19585104/1485715
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()
}
I have a problem when dragging a navigation bar or toolbar (storyboard) to my view controller.
UINavigationBar:
As you can see in the image above, the right button is almost overlapping the status bar.
With a UIToolbar it happens the same:
This view controllers are intended to be used as a Modal, that's the reason I'm not using a UINavigationController.
In another section I use a UINavigationController and it appears as I expect:
How can I drag a UINavigationBar / UIToolbar to a view controller without overlapping the status bar?
The navigation bars or toolbars have to be at (0, viewController.topLayoutGuide.length) with bar positioning of UIBarPositionTopAttached. You should set the delegate of your navigation bar or your toolbar to your view controller, and return UIBarPositionTopAttached. If positioned correctly, you will have the result in your third image.
More information here:
https://developer.apple.com/documentation/uikit/uibarpositioningdelegate?language=objc
Do these steps
Drag the NavigationBar to your ViewController in Xib, set the ViewController as its delegate.
Note that the NavigationBar should be at (0, 20)
In ViewController, conform to the UINavigationBarDelegate
#interface ETPViewController () <UINavigationBarDelegate>
Implement this method
- (UIBarPosition)positionForBar:(id <UIBarPositioning>)bar
{
return UIBarPositionTopAttached;
}
positionForBar tells the NavigationBar if it should extend its background upward the Status Bar
Please see my answer here, I've copied the content below for convenience:
https://stackoverflow.com/a/18912291/1162959
The easiest workaround I've found is to wrap the view controller you want to present inside a navigation controller, and then present that navigation controller.
MyViewController *vc = [MyViewController new];
UINavigationController *nav = [[UINavigationController alloc]
initWithRootViewController:vc];
[self presentViewController:nav animated:YES completion:NULL];
Advantages:
No mucking with frames needed.
Same code works on iOS 6 an iOS 7.
Less ugly than the other workarounds.
Disadvantages:
You'll probably want to leave your XIB empty of navigation bars or toolbars, and programatically add UIBarButtonItems to the navigation bar. Fortunately this is pretty easy.
You can resolve this issue by using Auto Layout, as per this techincal note (Preventing the Status Bar from Covering Your Views).
Here are some excerpts:
Add the Vertical Space Constraint to the top-most view
Control drag from the UIToolbar to the "Top Layout Guide"
In the popover, choose "Vertical Spacing"
Change the "Vertical Space Constraint" Constant to 0 (zero)
If you have other subviews below the UIToolbar, anchor those views to
the toolbar instead of the Top Layout Guide
This will support ios6 and ios7.
You can also manage it by increasing height of navigation bar by providing image of size 620x128 for ios version. And this image is used in :
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)?YES:NO) {
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"newImage.png"] forBarMetrics:UIBarMetricsDefault];
}else{
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"previousImage.png"] forBarMetrics:UIBarMetricsDefault];
}
I gave up and had to set the navbar height constraint to 64 in x xib based VC cause viewController.topLayoutGuide.length is 0 in viewDidLoad despite statusbar being present :-[
which means in a non universal app on ipad you'd have 20 px on the top of the
view wasted (cause status bar is separate from the iphone simulation window)
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.