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UINavigationBar/Status Bar issue in IOS7

由 谁说胖子不能爱 提交于 2019-11-28 15:43:20
Nicolas Buquet

Did you try Apple recommendation about "Preventing the Status Bar from Covering Your Views": https://developer.apple.com/library/content/qa/qa1797/_index.html

And did you have a look at "UIBarPositioningDelegate": https://developer.apple.com/documentation/uikit/uibarpositioningdelegate

In iOS 7.0 UIViewController works by default this way. View will be full screen if you are using UIViewController inside UINavigationController and the navigationBar is visible.

If navigationBar is visible do following. ==> 

self.edgesForExtendedLayout = UIRectEdgeNone

if navigationBar is hidden do following . ==>

Adjust all the UIView elements by shifting 20 points

If you use Interface builder, you can use iOS6/7 deltas: First, "view as iOS 6.0", then set a delta of "20" to achieve the +20 offset in iOS 7

I'm surprised no one has hit on the right answer yet. UIBarPositioningDelegate works like a charm! Just make your view controller a UIBarPositioningDelegate and assign it as the bar's delegate. Position the bar 20 pixels from the top of your view. Then add this method to your view controller (only available in iOS7+): 

- (UIBarPosition)positionForBar:(id<UIBarPositioning>)bar 
{ 
   return UIBarPositionTopAttached; 
}

I had a similar issue with a "hamburger" menu button that slide the main view controller over and had a menu view controller on the side. I found that the menu view controller's navigation bar was not aware if the status bar was shown or not. I fixed it by posting a notification when the status bar was shown and hiddden then doing 

[self.navigationController setNavigationBarHidden:YES/NO animated:NO];

in the menu's view controller.

grigorievs

I fixed such a problem using answer from this post: iOS 7 | Navigation bar / Toolbar buttons very close to status bar

Using Autolayout you should ignore setting a new Frame. You should add a Top Space Constraint equal to 20 for the TopBar for iOS 7.

Nicolas Buquet

Did you try to add the following code to your viewDidLoad method : 

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

It is quickly explained in Apple migrating to iOS 7 doumentation.

jaredsinclair

I have answered this problem at length in this answer to a similar question. The short answer is this: there is no way to get the automatic status bar layout behavior you're used to from iOS 6 and earlier. You'll have to design around it, or find a way to simulate the old style (I cover both approaches).

I strongly advise you not to make manual adjustments to the navigation bar frame. Let UINavigationController handle that yourself. Most likely, your problem is that that your navigation controller's view's frame isn't equal to the UIScreen's bounds.

macL0vin

I know that you have ViewController as Main VC. But if someone is using UITableviewController and having the same problem, this code solves the issue:

self.tableView.contentInset = UIEdgeInsetsMake(20.0f, 0.0f, 0.0f, 0.0f);

The solution to this is actually very simple. It involves manipulating UINavigationBar's center.y value, which is what UIKit natively uses in order to adjust UINavigationBar to the status bar's height. For simplicity's sake, I subclassed UINavigationBar and did the following:

@implementation MyNavigationBar

    - (void) setCenter:(CGPoint)center {
        // Anything less than or equal to 22 is something we don't want (below SB height)
        if(center.y > 22) [super setCenter:center];
    }

@end

Yes had same problem. followed all the step but no change.

Got it to work by making sure AutoLayout set up correctly for the whole screen not just the top view/toolbar as specified in

"Preventing the Status Bar from Covering Your Views" : https://developer.apple.com/library/ios/qa/qa1797/_index.html

At least for all Views just below the main Viewcontroller.view.

There is a built-in way to do this. Same as Joel Cave's answer, but elaborated:

Make your navigation bar have a Y origin of 20 points.

Then in the .h file:

@interface XYZViewController : UIViewController <UIBarPositioningDelegate>

And in the .m file:

- (void)viewDidLoad {
    [super viewDidLoad];
    self.navigationBar.delegate = self;
}

- (UIBarPosition)positionForBar:(id<UIBarPositioning>)bar { 
    return UIBarPositionTopAttached; 
}

For me solution was be shifting Navigation Bar to 20 point

I'm a little too late to the party, but since I faced the same issue and this was the first result that showed up in the search, I guess my answer could help other people :)

I fixed the problem by implementing

- (BOOL)shouldAutorotate
{
    return NO;
}

in the view controller that presents the modal.

Try it, all navigationBars should be translucent is disable.

[self.navigationController.navigationBar setTranslucent:NO];

If you designed your view with a storyboard then you can solve the problem using XCode. Select the NavigationBar widget and uncheck "Translucent".

标签
ios7
uinavigationcontroller
uinavigationbar
uistatusbar
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