Xcode 4.6中iOS7的statusBar [英] statusBar for iOS7 in Xcode 4.6

问题描述

我想解决iOS7中 statusBar 的问题。我找到了这篇文章和这个解决方案在Xcode 5中工作得很好。但是当我在Xcode 4.6.3中尝试这个代码时，我遇到了2个错误：

I want to resolve issue with statusBar in iOS7. I have found this post and this solution works great in Xcode 5. But when I tried this code in Xcode 4.6.3 I got 2 errors:

1. 'MyController'没有可见的@interface声明选择器
'setNeedsStatusBarAppearanceUpdate';


2. 使用未声明的标识符
'UIStatusBarStyleLightContent'。

1. No visible @interface for 'MyController' declares the selector 'setNeedsStatusBarAppearanceUpdate';
2. Use of undeclared identifier 'UIStatusBarStyleLightContent'.

使用此代码解决了第一个问题： [self performSelector：@selector（setNeedsStatusBarAppearanceUpdate）]; 但我无法解决第二个错误。

The first problem was solved by using this code: [self performSelector:@selector(setNeedsStatusBarAppearanceUpdate)]; but I can't resolve the second error.

推荐答案

这些是不能在XCode 4.6.3中编译的iOS 7功能，它试图针对iOS 6进行编译。您需要有条件地将它们编译出来。

These are iOS 7 features that won't compile in XCode 4.6.3 which is trying to compile against iOS 6. You need to conditionally compile them out.

用以下内容包装有问题的代码：

Wrap the offending code with:

#if __IPHONE_OS_VERSION_MAX_ALLOWED >= 70000
    //iOS 7 only stuff here
#endif 

这篇关于Xcode 4.6中iOS7的statusBar的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！