在iOS 7中，UIStatusBar被设计成这样，它与视图合并:
(GUI由Tina tavvar设计)
It is cool, but it will somewhat mess up your view when you have something at the top part of your view, and it becomes overlapped with the status bar.
Is there a simple solution (such as setting a property in info.plist) that can change the way it works [not overlapping] back to how it is in iOS6?
I know a more straightforward solution is to have self.view.center.x + 20 points for every single view controller, but changing them will screw other dimensions up (having a different self.view.center.x can cause problem to custom segues, etc.) and suddenly it turns into a tedious job that is best to be avoided.
I'll really be glad if someone can provide me an one-liner solution for this.
附注:我知道我可以隐藏状态栏
[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationNone];
在didFinishLaunchingWithOptions方法中，但这是一个变通方法，一个避免问题的快捷方式，所以我不认为这是一个真正的解决方案。
因为使用presentViewController:animated:completion:把window.rootViewController弄乱了。因此，我必须找到一个不同的方法来解决这个问题。我终于让它与模态和旋转工作通过子类化我的rootViewController的UIView。
.h
@interface RootView : UIView
@end
.m
@implementation RootView
-(void)setFrame:(CGRect)frame
{
if (self.superview && self.superview != self.window)
{
frame = self.superview.bounds;
frame.origin.y += 20.f;
frame.size.height -= 20.f;
}
else
{
frame = [UIScreen mainScreen].applicationFrame;
}
[super setFrame:frame];
}
- (void)layoutSubviews
{
self.frame = self.frame;
[super layoutSubviews];
}
@end
现在你有了iOS7动画的强大解决方案。
更新(新解决方案)
本次更新是iOS 7导航栏问题的最佳解决方案。您可以设置导航栏颜色示例:FakeNavBar。backgroundColor = [UIColor redColor];
注意:如果你使用默认的导航控制器，请使用旧的解决方案。
AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
if(NSFoundationVersionNumber >= NSFoundationVersionNumber_iOS_7_0)
{
UIView *FakeNavBar = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 320, 20)];
FakeNavBar.backgroundColor = [UIColor whiteColor];
float navBarHeight = 20.0;
for (UIView *subView in self.window.subviews) {
if ([subView isKindOfClass:[UIScrollView class]]) {
subView.frame = CGRectMake(subView.frame.origin.x, subView.frame.origin.y + navBarHeight, subView.frame.size.width, subView.frame.size.height - navBarHeight);
} else {
subView.frame = CGRectMake(subView.frame.origin.x, subView.frame.origin.y + navBarHeight, subView.frame.size.width, subView.frame.size.height);
}
}
[self.window addSubview:FakeNavBar];
}
return YES;
}
旧的解决方案-如果你使用以前的代码，请忽略下面的代码和图像
这是旧版本的iOS 7导航栏解决方案。
我用以下代码解决了这个问题。这是用来添加状态栏的。
didFinishLaunchingWithOptions
if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 7.0) {
UIView *addStatusBar = [[UIView alloc] init];
addStatusBar.frame = CGRectMake(0, 0, 320, 20);
addStatusBar.backgroundColor = [UIColor colorWithRed:0.973 green:0.973 blue:0.973 alpha:1]; //change this to match your navigation bar
[self.window.rootViewController.view addSubview:addStatusBar];
}
对于界面构建器，这是在iOS 6中打开的;它从0像素开始。
注意:iOS 6/7只有在详细信息窗格的“文件检查器”(最左边的图标)中取消视图控制器的“使用自动布局”时才会出现增量。
试试这个简单的方法....
步骤1:在单个viewController中更改
[[UIApplication sharedApplication] setStatusBarStyle: UIStatusBarStyleBlackOpaque];
步骤2:更改整个应用程序
info.plist
----> Status Bar Style
--->UIStatusBarStyle to UIStatusBarStyleBlackOpaque
第三步:在每个viewWillAppear中添加这个来调整iOS7的状态栏高度
[[UIApplication sharedApplication]setStatusBarStyle:UIStatusBarStyleLightContent];
if ([[UIDevice currentDevice].systemVersion floatValue] >= 7) {
CGRect frame = [UIScreen mainScreen].bounds;
frame.origin.y+=20.0;
frame.size.height-= 20.0;
self.view.frame = frame;
[self.view layoutIfNeeded];
}
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];
}
