iOS 7 - 状态栏与视图重叠

Question

I have a ViewController which is inside a UINavigationcontroller , but the navigationBar is hidden. When I run the app on iOS 7, the status bar shows on top of my view. Is there a way to avoid this?

I don't want to write any OS specific code.

I tried setting View controller-based status bar appearance to NO , but it did not fix the issue.

Answer 1

Xcode 5 has iOS 6/7 Deltas which is specifically made to resolve this issue. In the storyboard, I moved my views 20 pixels down to look right on iOS 7 and in order to make it iOS 6 compatible, I changed Delta y to -20.

Since my storyboard is not using auto-layout, in order to resize the height of views properly on iOS 6 I had to set Delta height as well as Delta Y .

Answer 2

If you simply do NOT want any status bar at all, you need to update your plist with this data: To do this, in the plist, add those 2 settings:

<key>UIStatusBarHidden</key>
<true/>
<key>UIViewControllerBasedStatusBarAppearance</key>
<false/>

In iOS 7 you are expected to design your app with an overlaid transparent status bar in mind. See the new iOS 7 Weather app for example.

Answer 3

This is the default behaviour for UIViewController on iOS 7. The view will be full-screen which means the status bar will cover the top of your view.

If you have a UIViewController within a UINavigationController and the navigationBar is visible, you can have the following code in your viewDidLoad or have a background image for navigationBar do the trick.

self.edgesForExtendedLayout = UIRectEdgeNone;

If you have navigationBar hidden, then you have to adjust all the UIView elements by shifting 20 points. I dont't see any other solution. Use auto layout will help a little bit.

Here is the sample code for detecting the iOS version, if you want to backward compatibility.

NSUInteger DeviceSystemMajorVersion() {
    static NSUInteger _deviceSystemMajorVersion = -1;
    static dispatch_once_t onceToken;

    dispatch_once(&onceToken, ^{
        NSString *systemVersion = [UIDevice currentDevice].systemVersion;
        _deviceSystemMajorVersion = [[systemVersion componentsSeparatedByString:@"."][0] intValue];
    });

   return _deviceSystemMajorVersion;
}

Answer 4

Only working solution i've made by my self.

Here is my UIViewController subclass https://github.com/comonitos/ios7_overlaping

1 Subclass from UIViewController

2 Subclass your window.rootViewController from that class.

3 Voila!

- (void) viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
        CGRect screen = [[UIScreen mainScreen] bounds];
        if (self.navigationController) {
            CGRect frame = self.navigationController.view.frame;
            frame.origin.y = 20;
            frame.size.height = screen.size.height - 20;
            self.navigationController.view.frame = frame;
        } else {
            if ([self respondsToSelector: @selector(containerView)]) {
                UIView *containerView = (UIView *)[self performSelector: @selector(containerView)];

                CGRect frame = containerView.frame;
                frame.origin.y = 20;
                frame.size.height = screen.size.height - 20;
                containerView.frame = frame;
            } else {
                CGRect frame = self.view.frame;
                frame.origin.y = 20;
                frame.size.height = screen.size.height - 20;
                self.view.frame = frame;
            }
        }
    }
}

4 Add this to make your status bar white Just right after the [self.window makeKeyAndVisible]; !!!

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
    [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
}

Answer 5

-(UIStatusBarStyle)preferredStatusBarStyle
{
    return UIStatusBarStyleLightContent;
}

-(void)viewWillLayoutSubviews{

 if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) 
  {
    self.view.clipsToBounds = YES;
    CGRect screenRect = [[UIScreen mainScreen] bounds];
    CGFloat screenHeight = 0.0;
    if(UIDeviceOrientationIsPortrait([[UIApplication sharedApplication] statusBarOrientation]))
        screenHeight = screenRect.size.height;
    else
        screenHeight = screenRect.size.width;
    CGRect screenFrame = CGRectMake(0, 20, self.view.frame.size.width,screenHeight-20);
    CGRect viewFrame1 = [self.view convertRect:self.view.frame toView:nil];
    if (!CGRectEqualToRect(screenFrame, viewFrame1))
    {
        self.view.frame = screenFrame;
        self.view.bounds = CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height);
    }
  }
}

Add Key in plist--- View controller-based status bar appearance : NO

Answer 6

To hide status bar in ios7 follow these simple steps :

In Xcode goto " Resources " folder and open " (app name)-Info.plist file ".

• check for " View controller based status bar appearance " key and set its value " NO "
• check for " Status bar is initially hidden " key and set its value " YES "

If the keys are not there then you can add it by selecting " information property list " at top and click + icon

Answer 7

If you wan to hide it completely and just avoid dealing with it, this works well.

-(BOOL) prefersStatusBarHidden
{
    return YES;
}

reference https://stackoverflow.com/a/18873777/1030449

Answer 8

If using xib s, a very easy implementation is to encapsulate all subviews inside a container view with resizing flags (which you'll already be using for 3.5" and 4" compatibility) so that the view hierarchy looks something like this

and then in viewDidLoad , do something like this:

- (void)viewDidLoad
{
  [super viewDidLoad];
  // initializations
  if(SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0")) // only for iOS 7 and above
  {
    CGRect frame = containerView.frame;
    frame.origin.y += 20;
    frame.size.height -= 20;
    containerView.frame = frame;
  }
}

This way, the nibs need not be modified for iOS 7 compatibility. If you have a background, it can be kept outside containerView and let it cover the whole screen.

Answer 9

This is all that is needed to remove the status bar.

Answer 10

For Navigation Bar :

Writing this code :

self.navigationController.navigationBar.translucent = NO;

just did the trick for me.

Answer 11

I have posted my answer to another post with the same question with this one.

From Apple iOS7 transition Guide, https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/TransitionGuide/AppearanceCustomization.html#//apple_ref/doc/uid/TP40013174-CH15-SW1

Specifically automaticallyAdjustsScrollViewInsets=YES and set self.edgesForExtendedLayout = UIRectEdgeNone works for me when I don't want to the overlap and I have a tableviewcontroller .

Answer 12

Vincent's answer edgesForExtendedLayout worked for me.

These macros help in determining os version making it easier

// 7.0 and above 
#define IS_DEVICE_RUNNING_IOS_7_AND_ABOVE() ([[[UIDevice currentDevice] systemVersion] compare:@"7.0" options:NSNumericSearch] != NSOrderedAscending) 

// 6.0, 6.0.x, 6.1, 6.1.x
#define IS_DEVICE_RUNNING_IOS_6_OR_BELOW() ([[[UIDevice currentDevice] systemVersion] compare:@"6.2" options:NSNumericSearch] != NSOrderedDescending) 

add these macros to prefix.pch file of your project and can be accessed anywhere

if(IS_DEVICE_RUNNING_IOS_7_AND_ABOVE())
{
 //some iOS 7 stuff
 self.edgesForExtendedLayout = UIRectEdgeNone;
}

if(IS_DEVICE_RUNNING_IOS_6_OR_BELOW())
{
 // some old iOS stuff
}

Answer 13

If you want "Use Autolayout" to be enabled at any cost place the following code in viewdidload.

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7) 
{
        self.edgesForExtendedLayout = UIRectEdgeNone;
        self.extendedLayoutIncludesOpaqueBars = NO;
        self.automaticallyAdjustsScrollViewInsets = NO;
}

Answer 14

My status bar and navigation bar overlap after return from landscape view of YTPlayer. Here is my solution after trying @comonitos' version but not work on my iOS 8

- (void)fixNavigationBarPosition {
    if (self.navigationController) {
        CGRect frame = self.navigationController.navigationBar.frame;
        if (frame.origin.y != 20.f) {
            frame.origin.y = 20.f;
            self.navigationController.navigationBar.frame = frame;
        }
    }
}

Just call this function whenever you want to fix the position of navigation bar. I called on YTPlayerViewDelegate's playerView:didChangeToState:

- (void)playerView:(YTPlayerView *)playerView didChangeToState:(YTPlayerState)state {
    switch (state) {
        case kYTPlayerStatePaused:
        case kYTPlayerStateEnded:
            [self fixNavigationBarPosition];
            break;
        default:
    }
}