我要迟到了，但我只是想分享我所做的，基本上 最简单的解决方案

首先->转到你的信息。plist文件并添加状态栏样式->透明黑色样式(Alpha 0.5)

现在，它开始了:-

在你的AppDelegate.m中添加这段代码

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
    {
     //Whatever your code goes here
  if(kDeviceiPad){

     //adding status bar for IOS7 ipad
         if (IS_IOS7) {
              UIView *addStatusBar = [[UIView alloc] init];
              addStatusBar.frame = CGRectMake(0, 0, 1024, 20);
              addStatusBar.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:1]; //change this to match your navigation bar
              [self.window.rootViewController.view addSubview:addStatusBar];
                    }
                }
    else{

         //adding status bar for IOS7 iphone
        if (IS_IOS7) {
            UIView *addStatusBar = [[UIView alloc] init];
            addStatusBar.frame = CGRectMake(0, 0, 320, 20);
            addStatusBar.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:1]; //You can give your own color pattern
            [self.window.rootViewController.view addSubview:addStatusBar];
        }

    return YES;
   }

我已经看了很多很多很多教程来解决这个该死的问题。但是没有一个有用!以下是我的解决方案，对我来说很管用:

if( [[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0f ) {
    float statusBarHeight = [[UIApplication sharedApplication] statusBarFrame].size.height;
    for( UIView *v in [self.view subviews] ) {
        CGRect rect = v.frame;
        rect.origin.y += statusBarHeight;
        v.frame = rect;
    }
}

逻辑很简单。我改变了所有孩子对自我的看法。视图为20像素。 这是所有。然后，屏幕截图就会像iOS 6一样显示出来。我讨厌iOS7的状态栏!~ " ~

如果你正在使用接口构建器，试试这个:

在你的xib文件中:

1)选择主视图，设置背景颜色为黑色(或任何你想要状态栏的颜色)

2) Make sure the background is a self contained subview positioned as a top level child of the controller's view. Move your background to become a direct child of the controller's view. Check the autosizing panel to be sure that you've locked all frame edges, activated both flexibility axes, and if this is a UIImageView, set the content mode to Scale to fill. Programmatically this translates to contentMode set to UIViewContentModeScaleToFill and has its auto resizing mask set to (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight).

3)现在将所有被锁定的东西上下移动20点，并设置iOS 6/7 delta Y为-20。 在自动缩放面板中，所有被锁定在顶部框架上的顶级子图层都需要向下移动20点，并将其iOS 6/7 delta Y设置为-20。(Cmd选择所有这些，并按下箭头20次-有更好的方法吗?)

4) Adjust the iOS 6/7 delta height of all of the above items that had a flexible height. Any of the items that were locked to the frame top and bottom and had flexible height enabled in the autosizing panel must also have their iOS 6/7 delta height set to 20. That includes the background view mentioned above. This may seem anti-intuitive, but due to the order in which these are applied, it is necessary. The frame height is set first (based on device), then the deltas are applied, and finally the autosizing masks are applied based upon the offset positions of all of the child frames - think it through for a bit, it will make sense.

5)最后，被锁定在底部框架而不是顶部框架的项目根本不需要delta。

这将给你在iOS7和iOS6中相同的状态栏。

另一方面，如果你想要iOS7样式同时保持iOS6兼容性，那么将背景视图的delta Y / delta height值设置为0。

要查看更多iOS7迁移信息，请阅读全文:http://uncompiled.blogspot.com/2013/09/legacy-compatible-offsets-in-ios7.html

解决方案:

通过重写方法在你的视图控制器或rootviewcontroller中设置它:

-(BOOL) prefersStatusBarHidden
    {
        return YES;
    }

我非常简单的解决方案(假设你只支持垂直方向)是重新定义iOS版本7以下的应用程序窗口边界，在App委托didFinishLaunchingWithOptions方法中:

CGRect screenBounds = [[UIScreen mainScreen] bounds];
if ([HMService getIOSVersion] < 7) {
    // handling statusBar (iOS6) by leaving top 20px for statusbar.
    screenBounds.origin.y = 20;
    self.window = [[UIWindow alloc] initWithFrame:screenBounds];
}
else {
    self.window = [[UIWindow alloc] initWithFrame:screenBounds];
}

这可能是一个压倒性的问题，如果你使用自动布局，因为你不能直接操作帧。有一个简单的解决方案，不需要太多的工作。

我最终在一个实用工具类中编写了一个实用方法，并从所有视图控制器的viewDidLayoutSubviews方法中调用它。

+ (void)addStatusBarIfiOS7:(UIViewController *)vc
    {
        if (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1) {
            CGRect viewFrame = vc.view.frame;
            if(viewFrame.origin.y == 20) {
                //If the view's y origin is already 20 then don't move it down.
                return;
            }
            viewFrame.origin.y+=20.0;
            viewFrame.size.height-= 20.0;
            vc.view.frame = viewFrame;
            [vc.view layoutIfNeeded];
        }
    }

重写视图控制器中的viewDidLayoutSubviews方法，在那里你想要状态栏。它会让你通过自动布局的负担。

- (void)viewDidLayoutSubviews
{
    [[UIApplication sharedApplication]setStatusBarStyle:UIStatusBarStyleLightContent];
    [super viewDidLayoutSubviews];
    [MyUtilityClass addStatusBarIfiOS7:self];
}