blocks|key|4609414|text|因此，这里的问题实际上与Swift无关，而只是iOS+7开始如何处理状态栏外观。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4609415|默认情况下，视图控制器单独控制状态栏在屏幕上的外观。如果要使用此方法控制状态栏，则可以覆盖要修改其外观的任何视图控制器的以下方法：|4609416|prefersStatusBarHidden，preferredStatusBarStyle，preferredStatusBarAnimation，|offset|length|style|CODE|4609417|在您的示例中，您只需实现prefersStatusBarHidden并返回true。|4609418|另一种方法是在应用程序级别控制状态栏外观。这似乎就是您实际想要做的(通过设置application.statusBarHidden)。|4609419|为此，您需要打开应用程序的Info.plist文件，添加密钥UIViewControllerBasedStatusBarAppearance，并将其值设为NO。|4609420|entityMap^0|0|0|0|M|N|N|1B|R|0|C|M|11|4|0|12|R|0|D|A|U|14|25|2|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@$F|U|G|V|H|I]|$F|W|G|X|H|I]|$F|Y|G|Z|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|10|8|@$F|11|G|12|H|I]|$F|13|G|14|H|I]]|9|@]|A|$]]|$1|L|3|M|5|6|7|15|8|@$F|16|G|17|H|I]]|9|@]|A|$]]|$1|N|3|O|5|6|7|18|8|@$F|19|G|1A|H|I]|$F|1B|G|1C|H|I]|$F|1D|G|1E|H|I]]|9|@]|A|$]]|$1|P|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]]|Q|$]]

So the issue here actually has nothing to do with Swift but just how status bar appearance is handled as of iOS 7.

By Default, view controllers individually control the appearance of the status bar when they are on the screen. If you want to use this method of controlling the status bar, you can override the following methods for whatever view controllers you'd like to modify the appearance for:

<code>prefersStatusBarHidden</code>,
<code>preferredStatusBarStyle</code>,
<code>preferredStatusBarAnimation</code>,

In your case, you would just implement <code>prefersStatusBarHidden</code> and return <code>true</code>.

The other way would be to control the status bar appearance at the application level. This seems to be what you're actually trying to do (by setting <code>application.statusBarHidden</code>).

In order to make this work, you need to open up your app's <code>Info.plist</code> file and add the key <code>UIViewControllerBasedStatusBarAppearance</code>, and give it a value of <code>NO</code>.

blocks|key|4609422|text|这其实是我自己想出来的。我将添加我的解决方案作为另一个选项。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4609423|extension+UIViewController+{
++++func+prefersStatusBarHidden()+->+Bool+{
++++++++return+true
++++}
}|code-block|syntax|javascript|4609424|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I actually figured this out myself. I'll add my solution as another option.

<pre><code>extension UIViewController {
 func prefersStatusBarHidden() -&gt; Bool {
 return true
 }
}
</code></pre>

blocks|key|4609429|text|+override+func+viewWillAppear(animated:+Bool)+{
++++super.viewWillAppear(true);
++++navigationController?.navigationBar.hidden+=+true+//+for+navigation+bar+hide
++++UIApplication.sharedApplication().statusBarHidden=true;+//+for+status+bar+hide
}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4609430|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code> override func viewWillAppear(animated: Bool) {
 super.viewWillAppear(true);
 navigationController?.navigationBar.hidden = true // for navigation bar hide
 UIApplication.sharedApplication().statusBarHidden=true; // for status bar hide
}
</code></pre>

blocks|key|102890|text|如果您更喜欢可视化方法而不是编码，请使用以下方法:在您的info.plist中|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|102891|​|102892|📷|atomic|102893|只需向NO添加View+controller-based+status+bar+appearance|102894|和Status+bar+is+initially+hidden作为YES|102895|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/65828c30967c97a4489837c0e0591cae.png|imageAlt^0|S|A|0|0|0|1|0|0|3|2|7|17|0|1|U|X|3|0^^$0|@$1|2|3|4|5|6|7|X|8|@$9|Y|A|Z|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|10|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|11|8|@]|D|@$9|12|A|13|1|14]]|E|$]]|$1|K|3|L|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@]|E|$]]|$1|M|3|N|5|6|7|1A|8|@$9|1B|A|1C|B|C]|$9|1D|A|1E|B|C]]|D|@]|E|$]]|$1|O|3|-4|5|6|7|1F|8|@]|D|@]|E|$]]]|P|$Q|$5|R|S|T|E|$U|V|W|-4]]]]

if you prefer a visual approach rather than coding it use this method:
in your <code>info.plist</code>

<a href="https://i.stack.imgur.com/k4alq.png" rel="noreferrer"><img src="https://i.stack.imgur.com/k4alq.png" alt="enter image description here"></a>
simply add <code>View controller-based status bar appearance</code> to <code>NO</code>

and <code>Status bar is initially hidden</code> as <code>YES</code>

blocks|key|102917|text|iOS+10+/+Swift+3.0更新|type|unstyled|depth|inlineStyleRanges|entityRanges|data|102918|不再是一个函数，现在是一个属性...|102919|override+var+prefersStatusBarHidden:+Bool+{
++++return+true
}|code-block|syntax|javascript|102920|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Update for iOS 10 / Swift 3.0

No longer a function, now a property... 

<pre><code>override var prefersStatusBarHidden: Bool {
 return true
}
</code></pre>

blocks|key|4609547|text|我使用的是Xcode8.1+(8B62)，部署目标设置为10.1，而我在使用上面提到的覆盖选项时并不是很幸运。然而，选中Deployment+Info中的"Hide+status+bar“选项却帮了我大忙。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4609548|Project+>+General|offset|length|4609549|我希望这能帮到你。|4609550|entityMap|0|LINK|mutability|MUTABLE|url|https://i.stack.imgur.com/117e9.png^0|0|0|H|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Q|8|@]|9|@$D|R|E|S|1|T]]|A|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|A|$]]]|I|$J|$5|K|L|M|A|$N|O]]]]

I'm using Xcode 8.1 (8B62) with a deployment target set to 10.1 and I haven't had much luck with the override options mentioned above. However checking the "Hide status bar" option in Deployment Info did the trick for me.

<a href="https://i.stack.imgur.com/117e9.png" rel="nofollow noreferrer">Project > General</a>

I hope this helps.

blocks|key|102984|text|在Swift+3.x中：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|102985|override+func+viewWillAppear(_+animated:+Bool)+{
++++UIApplication.shared.isStatusBarHidden+=+true
}|code-block|syntax|javascript|102986|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

in Swift 3.x:

<pre><code>override func viewWillAppear(_ animated: Bool) {
 UIApplication.shared.isStatusBarHidden = true
}
</code></pre>

blocks|key|4609654|text|另外，在重写prefersStatusBarHidden方法或变量时，Info.plist中的View+controller-based+status+bar+appearance必须为YES，否则重写将无效|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4609655|entityMap^0|6|M|1B|17|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|M|8|@]|D|@]|E|$]]]|G|$]]

Just to add, when overriding <code>prefersStatusBarHidden</code> method or variable, the <code>View controller-based status bar appearance</code> in Info.plist must be YES, otherwise the override will have no effect

blocks|key|103076|text|在我的例子中，我寻找的是状态栏来按需隐藏/显示；而不仅仅是在视图加载或消失时。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|103077|swift+3.x|103078|//show+status+bar+initially
var+showStatusBar+=+true

//set+the+parameters
override+var+prefersStatusBarHidden:+Bool+{

++++if+showStatusBar+==+true+{

++++++++//does+not+prefer+status+bar+hidden
++++++++print("does+not+prefer+status+bar+hidden")
++++++++return+false

++++}+else+{

++++++++//does+prefer+status+bar+hidden
++++++++print("does+prefer+status+bar+hidden")
++++return+true

++++}
}

//ex:+hide+status+bar+and+call+parameter+function+again+whenever+you+want
++++++++showStatusBar+=+false
++++++++setNeedsStatusBarAppearanceUpdate()|code-block|syntax|javascript|103079|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

In my case, I was looking for the status bar to hide/show on demand; instead of just when the view loads or disappears. 

swift 3.x

<pre><code>//show status bar initially
var showStatusBar = true

//set the parameters
override var prefersStatusBarHidden: Bool {

 if showStatusBar == true {

 //does not prefer status bar hidden
 print("does not prefer status bar hidden")
 return false

 } else {

 //does prefer status bar hidden
 print("does prefer status bar hidden")
 return true

 }
}

//ex: hide status bar and call parameter function again whenever you want
 showStatusBar = false
 setNeedsStatusBarAppearanceUpdate()
</code></pre>

blocks|key|4609725|text|func+application(_+application:+UIApplication,+didFinishLaunchingWithOptions+launchOptions:+[UIApplicationLaunchOptionsKey:+Any]?)+->+Bool+{
++++++++application.isStatusBarHidden+=+true
++++++++return+true
++++}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|4609726|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -&gt; Bool {
 application.isStatusBarHidden = true
 return true
 }
</code></pre>

blocks|key|4609762|text|您可以在ViewController+Class+scope中使用此代码|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|4609763|open+override+var+prefersStatusBarHidden:+Bool+{+return+true+}|code-block|syntax|javascript|4609764|entityMap^0|4|E|J|5|P|5|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]|$9|R|A|S|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|T|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|U|8|@]|D|@]|E|$]]]|L|$]]

You can use this code in your <code>ViewController</code> <code>Class</code> <code>scope</code> 

<pre><code>open override var prefersStatusBarHidden: Bool { return true }
</code></pre>

blocks|key|103167|text|在您的项目->常规->部署信息中|type|unstyled|depth|inlineStyleRanges|entityRanges|data|103168|状态栏样式：--|103169|刚标记为隐藏状态栏(IOS+10)|103170|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|H|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|I|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|J|8|@]|9|@]|A|$]]|$1|F|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|G|$]]

In your Project->General->Deployment info 

Statusbar Style:--

just marked Hide status Bar(iOS 10)

blocks|key|4609816|text|Swift+4|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4609817|//MARK:-+Show+Status+Bar
UIApplication.shared.isStatusBarHidden+=+false

//MARK:-+Hide+Status+Bar
UIApplication.shared.isStatusBarHidden+=+true|code-block|syntax|javascript|4609818|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Swift 4

<pre><code>//MARK:- Show Status Bar
UIApplication.shared.isStatusBarHidden = false

//MARK:- Hide Status Bar
UIApplication.shared.isStatusBarHidden = true
</code></pre>

blocks|key|4609896|text|在您的项目常规->部署信息->状态栏样式中，选择隐藏状态栏的复选标记注意：-它会在整个应用程序中隐藏状态栏|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4609897|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In your project General->Deployment Info->Status bar style
select check mark of Hide status bar 
Note:- it hides status bar throughout application

blocks|key|4609940|text|在Swift+4.2中，它现在是一个属性。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4609941|override+var+prefersStatusBarHidden:+Bool+{
++++return+true
}|code-block|syntax|javascript|4609942|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

in Swift 4.2 it is a property now. 

<pre><code>override var prefersStatusBarHidden: Bool {
 return true
}
</code></pre>

blocks|key|4609976|text|对于Swift+4%2B，请尝试以下代码(在Swift+4.0，4.1+-+IOS+10，11上测试)：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4609977|override+var+prefersStatusBarHidden:+Bool+{+return+true+}

override+func+viewDidAppear(_+animated:+Bool)+{
++++super.viewDidAppear(animated)
++++//+call+this+func+to+force+preferredStatusBarStyle+to+be+read+again.
++++setNeedsStatusBarAppearanceUpdate()
}|code-block|syntax|javascript|4609978|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For Swift 4+ try the following code (tested on Swift 4.0, 4.1 - IOS 10, 11) : 

<pre><code>override var prefersStatusBarHidden: Bool { return true }

override func viewDidAppear(_ animated: Bool) {
 super.viewDidAppear(animated)
 // call this func to force preferredStatusBarStyle to be read again.
 setNeedsStatusBarAppearanceUpdate()
}
</code></pre>

blocks|key|4610001|text|如果您以模态的方式呈现视图控制器，请尝试|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4610002|viewController.hidesBottomBarWhenPushed+=+true
viewController.modalPresentationCapturesStatusBarAppearance+=+true|code-block|syntax|javascript|4610003|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

If you are presenting the view controller modally, try

<pre><code>viewController.hidesBottomBarWhenPushed = true
viewController.modalPresentationCapturesStatusBarAppearance = true
</code></pre>

blocks|key|4610045|text|Swift+5:在主视图控制器或主导航控制器中，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4610046|++++override+var+preferredStatusBarStyle:+UIStatusBarStyle+{
++++++++return+.lightContent
++++}

++++override+var+prefersStatusBarHidden:+Bool+{
++++++++return+false
++++}|code-block|syntax|javascript|4610047|plist中的“查看基于控制器的状态栏外观”必须为YES，否则上述代码将不会被调用。|4610048|如果你想在启动app时隐藏状态栏，plist中的“状态栏最初是隐藏的”必须为YES。这可以防止当屏幕顶部显示额外的蓝色条时，启动图像被扭曲。|4610049|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|P|8|@]|9|@]|A|$]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Swift 5:
In the main view controller, or main navigation controller if you have,

<pre><code> override var preferredStatusBarStyle: UIStatusBarStyle {
 return .lightContent
 }

 override var prefersStatusBarHidden: Bool {
 return false
 }
</code></pre>

And "View controller-based status bar appearance" in plist must be YES, otherwise the above code will not be called.

If you want to hide status bar when launching app, 
"Status bar is initially hidden" in plist must be YES.
This can prevent launch image from being distorted when extra blue bar showing on screen top.

blocks|key|103548|text|Swift+5%2B|type|unstyled|depth|inlineStyleRanges|entityRanges|data|103549|在我的例子中，我需要根据一些条件更新隐藏的状态栏。|103550|因此，我创建了一个包含新属性hideStatusBar的基本控件BaseViewController。|offset|length|style|CODE|103551|其他视图控制器是这个基本控制器的子类。最后，当我想要更新状态栏行为时，我只需要更改这个hideStatusBar值。|103552|class+BaseViewController:+UIViewController+{

++++var+hideStatusBar:+Bool+=+false+{
++++++++didSet+{
++++++++++++setNeedsStatusBarAppearanceUpdate()
++++++++}
++++}

++++override+var+prefersStatusBarHidden:+Bool+{
+++++++++++return+hideStatusBar
++++}
}|code-block|syntax|javascript|103553|如何使用|103554|final+class+ViewController:+BaseViewController,+UIScrollViewDelegate+{
++++let+scrollView+=+UIScrollView()

++++...

++++func+scrollViewDidScroll(_+scrollView:+UIScrollView)+{
++++++++UIView.animate(withDuration:+0.3)+{
++++++++++++if+scrollView.contentOffset.y+>+100+{
++++++++++++++++self.hideStatusBar+=+true
++++++++++++}+else+{
++++++++++++++++self.hideStatusBar+=+false
++++++++++++}
++++++++}
++++}
}|103555|演示|103556|这是一个演示，我正在使用UIView.animate(...)来使过渡更平滑。|103557|​|103558|📷|atomic|103559|103560|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://ask.qcloudimg.com/http-save/yehe-900000/7bb8574363e4c8ff518e68f8ac644459.gif|imageAlt^0|0|0|E|D|W|I|0|17|D|0|0|0|0|0|C|J|0|0|0|1|0|0|0^^$0|@$1|2|3|4|5|6|7|1D|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1E|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|1F|8|@$F|1G|G|1H|H|I]|$F|1I|G|1J|H|I]]|9|@]|A|$]]|$1|J|3|K|5|6|7|1K|8|@$F|1L|G|1M|H|I]]|9|@]|A|$]]|$1|L|3|M|5|N|7|1N|8|@]|9|@]|A|$O|P]]|$1|Q|3|R|5|6|7|1O|8|@]|9|@]|A|$]]|$1|S|3|T|5|N|7|1P|8|@]|9|@]|A|$O|P]]|$1|U|3|V|5|6|7|1Q|8|@]|9|@]|A|$]]|$1|W|3|X|5|6|7|1R|8|@$F|1S|G|1T|H|I]]|9|@]|A|$]]|$1|Y|3|Z|5|6|7|1U|8|@]|9|@]|A|$]]|$1|10|3|11|5|12|7|1V|8|@]|9|@$F|1W|G|1X|1|1Y]]|A|$]]|$1|13|3|Z|5|6|7|1Z|8|@]|9|@]|A|$]]|$1|14|3|-4|5|6|7|20|8|@]|9|@]|A|$]]]|15|$16|$5|17|18|19|A|$1A|1B|1C|-4]]]]

<h1>Swift 5+</h1>

In my case, I need to update the status bar hidden based on some conditions. 

Because of this, I create a base controlller <code>BaseViewController</code> which contains new property <code>hideStatusBar</code>.

Other view controllers are sub-class of this base controller. Finally when I want to update the status bar behavior, I only need to change this <code>hideStatusBar</code> value.

<pre><code>class BaseViewController: UIViewController {

 var hideStatusBar: Bool = false {
 didSet {
 setNeedsStatusBarAppearanceUpdate()
 }
 }

 override var prefersStatusBarHidden: Bool {
 return hideStatusBar
 }
}
</code></pre>

<h2>How to use</h2>

<pre><code>final class ViewController: BaseViewController, UIScrollViewDelegate {
 let scrollView = UIScrollView()

 ...

 func scrollViewDidScroll(_ scrollView: UIScrollView) {
 UIView.animate(withDuration: 0.3) {
 if scrollView.contentOffset.y &gt; 100 {
 self.hideStatusBar = true
 } else {
 self.hideStatusBar = false
 }
 }
 }
}
</code></pre>

<h2>Demo</h2>

Here is a demo, I'm using <code>UIView.animate(...)</code> to make the transition smoother.

<a href="https://i.stack.imgur.com/r8hLc.gif" rel="noreferrer"><img src="https://i.stack.imgur.com/r8hLc.gif" alt="enter image description here"></a>

I'd like to remove the status bar at the top of the screen.

This does not work:

<pre><code>func application
(application: UIApplication,
didFinishLaunchingWithOptions launchOptions: NSDictionary?)
-&gt; Bool
{
 application.statusBarHidden = true
 return true
}
</code></pre>

I've also tried:

<pre><code>func application
(application: UIApplication,
didFinishLaunchingWithOptions launchOptions: NSDictionary?)
-&gt; Bool
{
 self.window = UIWindow(frame: UIScreen.mainScreen().bounds)

 var controller = UIViewController()
 application.statusBarHidden = true
 controller.setNeedsStatusBarAppearanceUpdate()

 var view = UIView(frame: CGRectMake(0, 0, 320, 568))
 view.backgroundColor = UIColor.redColor()
 controller.view = view

 var label = UILabel(frame: CGRectMake(0, 0, 200, 21))
 label.center = CGPointMake(160, 284)
 label.textAlignment = NSTextAlignment.Center
 label.text = "Hello World"
 controller.view.addSubview(label)

 self.window!.rootViewController = controller
 self.window!.makeKeyAndVisible()
 return true
}
</code></pre>

How do I hide the status bar in a Swift iOS app?

Swift

我想删除屏幕顶部的状态栏。这不起作用：func application(application: UIApplication,didFinishLaunchingWithOptions launchOptions: NSDictionary?)-> Bool{        application.statusBarH...

问如何隐藏Swift iOS应用程序中的状态栏？
EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何隐藏Swift iOS应用程序中的状态栏？EN

社区

活动

资源

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何隐藏Swift iOS应用程序中的状态栏？
EN