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Status bar and navigation bar appear over my view's bounds in iOS 7

2014-08-07 18:02 615 查看

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I recently downloaded Xcode 5 DP to test my apps in iOS 7. The first thing I noticed and confirmed is that my view's bounds is not always resized to account for the status bar and navigation bar.
In

viewDidLayoutSubviews

, I print the view's bounds:

{{0, 0}, {320, 568}}

This results in my content appearing below the navigation bar and status bar.
I know I could account for the height myself by getting the main screen's height, subtracting the status bar's height and navigation bar's height, but that seems like unnecessary extra work.
Has anyone else experienced this issue?
UPDATE:
I've found a solution for this specific problem. Set the navigation bar's translucent property to NO:

self.navigationController.navigationBar.translucent = NO;

This will fix the view from being framed underneath the navigation bar and status bar.
However, I have not found a fix for the case when you want the navigation bar to be translucent. For instance, viewing a photo full screen, I wish to have the navigation bar translucent, and the view to be framed underneath it. That
works, but when I toggle showing/hiding the navigation bar, I've experienced even stranger results. The first subview (a UIScrollView) gets its bounds y origin changed every time.

ios ios7

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edited Jul 25 at 17:08

asked Jun 12 at 20:06

beebcon

952336

8

I found a decent fix... see the update above. – beebcon Jul
25 at 17:10

1

Look in the navigation bar for a tint color property, you should be able to change that blue color to whatever you want. – beebcon Aug
8 at 21:43

4

I hate ios upgrading sometimes because Apple never gave you a opportunity to keep your app backwards compatible. – bagusflyer Sep
4 at 14:55

1

Has anyone tried to use autolayout constraints? As far as remember, Apple iOS7 UI transition guide stated the suggestion for keeping UI compatible with iOS6 is to use autolayout. Anyway there are many changes
made in UIKit, so it makes sense to read the iOS7 transition guide in full.developer.apple.com/library/prerelease/ios/documentation/… – Hurden Sep
13 at 6:03

2

If the problem is related to the view going under the status bar after hiding the navigation controller top bar I would refer to the answer by @Stunner stackoverflow.com/a/18976660/235206 as
the solution – MiKL Oct
1 at 14:53

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11 Answers

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up vote192down voteaccepted

You can achieve this by implementing new property called

edgesForExtendedLayout

in iOS7 SDK. Please add the following code to achieve this,

if([self respondsToSelector:@selector(edgesForExtendedLayout)])self.edgesForExtendedLayout =UIRectEdgeNone;

You need add the above in your

-(void)viewDidLoad

method.
iOS 7 brings several changes to how you layout and customize the appearance of your UI. The changes in view-controller layout, tint color, and font affect all the UIKit objects in your app. In addition, enhancements
to gesture recognizer APIs give you finer grained control over gesture interactions.
Using View Controllers
In iOS 7, view controllers use full-screen layout. At the same time, iOS 7 gives you more granular control over the way a view controller lays out its views. In particular, the concept of full-screen layout has been refined to let
a view controller specify the layout of each edge of its view.
The

wantsFullScreenLayout

view controller property is deprecated in iOS 7. If you currently specify

wantsFullScreenLayout = NO

, the view controller may display its content at an unexpected screen location
when it runs in iOS 7.
To adjust how a view controller lays out its views,

UIViewController

provides the following properties:

edgesForExtendedLayout

The

edgesForExtendedLayout

property uses the

UIRectEdge

type, which specifies each of a rectangle’s four edges, in addition to specifying none and all. Use

edgesForExtendedLayout

to specify
which edges of a view should be extended, regardless of bar translucency. By default, the value of this property is

UIRectEdgeAll

.

extendedLayoutIncludesOpaqueBars

If your design uses opaque bars, refine

edgesForExtendedLayout

by also setting the

extendedLayoutIncludesOpaqueBars

property to NO. (The default value of

extendedLayoutIncludesOpaqueBars

is NO.)

automaticallyAdjustsScrollViewInsets

If you don’t want a scroll view’s content insets to be automatically adjusted, set

automaticallyAdjustsScrollViewInsets

to NO. (The default value of

automaticallyAdjustsScrollViewInsets

is YES.)

topLayoutGuide, bottomLayoutGuide

The

topLayoutGuide

and

bottomLayoutGuide

properties indicate the location of the top or bottom bar edges in a view controller’s view. If bars should overlap the top or bottom of a view, you can use Interface
Builder to position the view relative to the bar by creating constraints to the bottom of

topLayoutGuide

or to the top of bottomLayoutGuide. (If no bars should overlap the view, the bottom of

topLayoutGuide

is the same as the top of
the view and the top of

bottomLayoutGuide

is the same as the bottom of the view.) Both properties are lazily created when requested.
Please refer, apple doc

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edited Oct 8 at 17:55

Mirko Catalano

1,2162529

answered Sep 13 at 11:52

Nandha

2,4691513

2

It will not compile under iOS6. I think it should be written as performselector... – Shmidt Sep
16 at 9:38

5

Yes, Thats why I have included the selector check with if condition, if ([self respondsToSelector:@selector(edgesForExtendedLayout)]) – Nandha Sep
16 at 11:40

2

@Julian set your window color to your view background color, i.e.: [self.window setBackgroundColor:[UIColor whiteColor]]; – suda Sep
22 at 15:59

5

This would not work if I have no navigation bar. In that case, my view is extends behind the status bar.. – Van
Du Tran Sep
24 at 14:51

4

I have the same problem as @VanDuTran. edgesForExtendedLayout does not help if the navigation bar is hidden. – fishinear Sep
24 at 16:23

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up vote36down vote

You don't have to calculate how far to shift everything down, there's a build in property for this. In Interface Builder, highlight your view controller, and then navigate to the attributes inspector. Here you'll see some check boxes
next to the words "Extend Edges". As you can see, in the first screenshot, the default selection is for content to appear under top and bottom bars, but not under opaque bars, which is why setting the bar style to not translucent worked for you.
As you can somewhat see in the first screenshot, there are two UI elements hiding below the navigation bar. (I've enabled wireframes in IB to illustrate this) These elements, a UIButton and a UISegmentedControl both have their "y"
origin set to zero, and the view controller is set to allow content below the top bar.

This second screenshot shows what happens when you deselect the "Under Top Bars" check box. As you can see, the view controllers view has been shifted down appropriately for its y origin to be right underneath the navigation bar.

This can also be accomplished programmatically through the usage of

-[UIViewController edgesForExtendedLayout]

. Here's a link to the class reference for edgeForExtendedLayout,
and forUIRectEdge

[self setEdgesForExtendedLayout:UIRectEdgeNone];

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edited Sep 13 at 12:14

answered Sep 13 at 11:56

0x7fffffff

24.7k94878

7

How do I do the same for just view in a .xib? – bobics Sep
13 at 21:34

2

I added one label on view and I followed your instruction but this is not working for me – rmrahul Sep
20 at 8:08

@bobics The answer to the XIB question is, "You can't." Not through IB anyway. File a radar and hope Apple eventually addresses it. – Answerbot Oct
10 at 17:51

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up vote22down vote

I created my view programmatically and this ended up working for me:

-(void) viewDidLayoutSubviews {// only works for iOS 7+if([[[UIDevice currentDevice] systemVersion] floatValue]>=7.0){CGRect viewBounds =self.view.bounds;CGFloat topBarOffset =self.topLayoutGuide.length;// snaps the view under the status bar (iOS 6 style)
viewBounds.origin.y = topBarOffset *-1;// shrink the bounds of your view to compensate for the offset
viewBounds.size.height = viewBounds.size.height +(topBarOffset *-1);self.view.bounds = viewBounds;}}

Source (in topLayoutGuide section at bottom of pg.39).

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edited Nov 12 at 22:43

answered Sep 24 at 8:35

Stunner

2,96422458

Finally found an answer that actually works for this. Good work! – StuartM Sep
28 at 0:26

1

To solve the problem whereby the view controller's view shows up under the status bar when the navigation bar is hidden, this is the code which snaps the view under the status bar. – MiKL Oct
1 at 14:52

Note: this will push the bottom of your view off the screen. – Answerbot Oct
10 at 17:08

1

Also, unless you are building for only iOS7, the above code will throw an error -

topLayoutGuide

is iOS7 only. – Answerbot Oct
10 at 17:11

1

Also note that when your main view is a UITableView the viewDidLayoutSubviews will get called on each scroll. Your UITableView will be scaled down until its height is 15px. Add a flag to only run this code
once. ;) – Thomas Johannesmeyer Nov
21 at 13:14

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up vote8down vote

If you want the view to have the translucent nav bar (which is kind of nice) you have to setup a contentInset or similar.
Here is how I do it:

// Check if we are running on ios7if([[[[UIDevice currentDevice] systemVersion] componentsSeparatedByString:@"."][0] intValue]>=7){CGRect statusBarViewRect =[[UIApplication sharedApplication] statusBarFrame];float heightPadding = statusBarViewRect.size.height+self.navigationController.navigationBar.frame.size.height;

myContentView.contentInset =UIEdgeInsetsMake(heightPadding,0.0,0.0,0.0);}

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answered Sep 13 at 9:16

Magnus

1,2951023

what is the requirement to split 7.0 into 7 and 0 ??? @Magnus – Leena Sep
16 at 9:57

2

why can't you directly compare it with 7.0 – Leena Sep
17 at 5:03

lol I get it: checking against a specific version with minor added is less robust. But you are checking if the value is BIGGER or equal to so comparing to 7.0 would do just fine here ;) – EeKay Sep
18 at 6:36

1

@leena - This is features in 7.x and later - so I check if the version is 7 or greater and skip the minor revisions in the check. – Magnus Sep
24 at 8:14

1

I Had an issue with my tableView beeing displayed behind my Tabbar. Which made the last row of my table never to scroll above the Tabbar. I fixed it like that: myTableView.contentInset = UIEdgeInsetsMake(0,
0.0, TabbarHeight, 0) – James Laurenstin Oct
22 at 15:49

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up vote6down vote

In your apps plist file add a row call it "View controller-based status bar appearance" and set it to NO

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answered Sep 19 at 13:45

Idan

2,5461434

Why the down vote? – Idan Sep
24 at 18:16

Its not working – SAMIR RATHOD Oct
4 at 5:54

Works for me, thanks! – Jim True Oct
23 at 14:30

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up vote5down vote

The simplest trick is to open the NIB file and do these two simple steps:

Just togle that and set it to the one you prefer.

Select those UIView's/UIIMageView's/... that you want to be moved down. In my case only the logo was overlapped an I've set the delta to +15; (OR -15 if you chose iOS7 in step 1)

And THE RESULT:

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answered Sep 20 at 10:27

Riskov

13114

2

It works, but this look like a hard to maintain solution. It would be best to just fix the problem instead of patching it. – NLemay Sep
20 at 21:31

it would be best to do it programmatically for all view's subviews because it doesn't work if applied to main view – wildmonkey Oct
23 at 15:50

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up vote5down vote

edgesForExtendedLayout

does the trick for iOS 7. However, if you build the app across iOS 7 SDK and deploy it in iOS 6, the navigation bar appears translucent and the views go beneath it. So, to fix it for both iOS 7
as well as for iOS 6 do this:

self.navigationController.navigationBar.barStyle =UIBarStyleBlackOpaque;if([self respondsToSelector:@selector(edgesForExtendedLayout)])self.edgesForExtendedLayout =UIRectEdgeNone;// iOS 7 specific

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answered Sep 21 at 5:18

Raj

2,46763057

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up vote3down vote

add the key

View Controller-based status bar appearance

from the dropdownlist as a row in

info.plist

something like this :

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edited Oct 4 at 9:11

Vaibhav Saran

2,62511526

answered Sep 23 at 21:17

N.Ramos

38611

Does not help... – giuseppe Oct
3 at 9:38

interesting.it helped on my cocos2d projects.as I toggle this option I can see the top status bar is completely has gone or appear. – N.Ramos Oct
19 at 5:06

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up vote3down vote

I would like to expand on Stunner's answer and add an

if

statement to check if it is iOS-7 because when I tested in iOS-6 my app would crash.
The addition would be adding:

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0)

So I would suggest adding this method to your

MyViewControler.m

file:

-(void) viewDidLayoutSubviews {if([[[UIDevice currentDevice] systemVersion] floatValue]>=7.0){CGRect viewBounds =self.view.bounds;CGFloat topBarOffset =self.topLayoutGuide.length;
viewBounds.origin.y = topBarOffset *-1;self.view.bounds = viewBounds;}}

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answered Oct 1 at 15:36

werdsackjon

867

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up vote2down vote

To me, the simplest solution is to add two keys into the plist

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answered Oct 3 at 10:28

giuseppe

726412

+1, I had the "Status bar initially hidden"=YES, but when adding "View controller-based status bar appearance"=NO I got rid of the status bar. – Jonas
Byström Oct
28 at 22:32

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up vote1down vote

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Status bar and navigation bar appear over my view&#39;s bounds in iOS 7

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Status bar and navigation bar appear over my view's bounds in iOS 7