iOS 7导航栏隐藏内容 [英] iOS 7 Navigation Bar Hiding Content

问题描述

我有一个在iOS 6中开发的应用程序。但是现在在iOS 7甚至我的应用程序为iOS 6编译，但在iOS 7设备上运行顶部导航栏（iOS 7中的新巨人）我的内容是隐藏的。顶部导航栏覆盖它。如果我用CGRect手动移动它在iOS 7中看起来很好，但是现在iOS 6看起来很糟糕（在它上方的空间很大）。

I have an app that was developed in iOS 6. But now in iOS 7 or even my app compiled for iOS 6, but running on an iOS 7 device the top navigation bar (the new giant one in iOS 7) my content is hidden. The top navigation bar covers it. If I manually move it down with CGRect it looks good in iOS 7, but now iOS 6 looks horrible (to much space above it).

应用程序是在autolayout关闭的情况下构建的，因为自动布局是很难正确设置的方法。

The app was built with autolayout off because autolayout is way to difficult to get things setup correctly.

我的问题是，是否有一种简单的方法可以仅针对iOS 7移动内容？我真的不想重新开启autolayout并花一个月时间尝试将所有UI元素重新安装到位。该应用程序相当复杂，有30多个屏幕，屏幕上有很多动画视图。

My question is, is there an easy way to move the content down for iOS 7 only? I really don't want to have to turn autolayout back on and spend a month trying to get all the UI elements back in place. The app is pretty sophisticated with 30+ screens and a lot of animating view on screens.

推荐答案

我认为还有一点点即使iOS 7在一年多前推出，也存在误解这种布局问题的误解。所以我最终决定进一步阐述我的答案。

I think there's still a little bit of misconception going around this layout problem even if iOS 7 was rolled out more than a year ago. So I eventually decided to elaborate further my answer.

这就是事情。

因为 automaticAdjustsScrollViewInsets '默认值为 YES ，一个非常简单的解决方案可能是添加以下代码：

Because automaticallyAdjustsScrollViewInsets' default value is YES, a pretty straightforward solution could be adding the following code:

if ([self respondsToSelector:@selector(setEdgesForExtendedLayout:)]) { // if iOS 7
    self.edgesForExtendedLayout = UIRectEdgeNone; //layout adjustements
}

进入ViewController的 -viewDidLoad 方法。

into the ViewController's -viewDidLoad method.

如果您想删除状态栏怪癖（由于条形图半透明，所以它并不奇怪）添加 self.navigationController.navigationBar.translucent = NO 。默认值为 YES 。
注意：这与内容无关，因为半透明而与内容有关，但这是一个完全不同的故事！

If you wish to remove the status bar quirk (due to the bar translucency, so it's not weird whatsoever) add self.navigationController.navigationBar.translucent = NO. The default value is YES. Note: this has nothing to do with the content, it's related to the content because of translucency but that's an altogether different story!

因为 extendedLayoutIncludesOpaqueBars 默认为否， self.navigationController.navigationBar.translucent = NO 表示基本上有

Because extendedLayoutIncludesOpaqueBars is NO by default, self.navigationController.navigationBar.translucent = NO means basically having

self.edgesForExtendedLayout = UIRectEdgeLeft | UIRectEdgeRight| UIRectEdgeBottom; 

或者，更一般地说，类似的东西（就像伪代码一样......）

Or, more generally, something like that (it's like pseudocode to give an idea...)

BOOL enableTopEdge =  extendedLayoutIncludesOpaqueBars && !navigationBarIsTranslucent
self.edgesForExtendedLayout = (enableTopEdge & UIRectEdgeTop) | UIRectEdgeLeft | UIRectEdgeRight | UIRectEdgeBottom; 

这篇关于iOS 7导航栏隐藏内容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！