使导航栏在 xCode 5/iOS7 中的状态栏后面伸展 [英] Make Navigation Bar stretch behind status bar in xCode 5 / iOS7

问题描述

我按照以下教程将我的导航栏向下移动，这样它就不会被 xcode 5/ios7 中的状态栏覆盖:

I have followed the following tutorial to move my navigation bar down so it is not covered by the status bar in xcode 5/ios7:

状态栏和导航栏问题IOS7

但是现在在 iOS7 中状态栏的顶部有一个空白区域，我希望导航栏也填充这个区域

But now in iOS7 there is a blank space at the top where the status bar would be and I would like the navigation bar to fill this area too

例如，Facebook/twittter/Instagram iOS7 应用程序在状态栏后面也有导航栏背景.我如何实现这一目标?

For instance, Facebook/twittter/Instagram iOS7 apps have the navigation bar background behind the status bar too. How do I achieve this?

对不起，如果我不清楚但真的很想解决这个问题

Sorry if I'm not being clear but really eager to get this sorted

谢谢！

推荐答案

您确实想设置 UINavigationBar 的 barPosition.

You do want to set the barPosition of the UINavigationBar.

您可以在代码中执行此操作:

让你的 ViewController 符合协议 UINavigationBarDelegate 并实现 positionBar: 方法.(您真正需要的协议是 UIBarPositioningDelegate 但 UINavigationBarDelegate 确实扩展了它.)

Let your ViewController conform to protocol UINavigationBarDelegate and implement positionBar: metod. (The protocol that you really need is UIBarPositioningDelegate but UINavigationBarDelegate does extend it.)

@interface SampleViewController () <UINavigationBarDelegate>
@property (weak, nonatomic) IBOutlet UINavigationBar *navigationBar;
@end

@implementation SampleViewController

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

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

或在情节提要中:

在UINavigationBar的Identity Inspector中，添加一个用户定义的运行时属性，KeyPath = barPosition，Type = Number，Value = 3:

In the Identity Inspector of UINavigationBar, add a User Defined runtime Attribute with KeyPath = barPosition, Type = Number, and Value = 3:

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