blocks|key|782387|text|iOS+7引入了一种方法prefersStatusBarHidden，但在这种情况下使用起来并不容易。您可能更喜欢使用statusBarHidden属性的UIApplication，而模型是显示的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|782388|entityMap^0|C|M|1N|F|25|D|0^^$0|@$1|2|3|4|5|6|7|H|8|@$9|I|A|J|B|C]|$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|-4|5|6|7|O|8|@]|D|@]|E|$]]]|G|$]]

iOS 7 introduces a method <code>prefersStatusBarHidden</code>, but it won't be so easy to use in this case. You may prefer to use the <code>statusBarHidden</code> property of <code>UIApplication</code> while the modal is presented.

blocks|key|782092|text|尝试将类别添加到MFMailComposeViewController|type|unstyled|depth|inlineStyleRanges|entityRanges|data|782093|编辑:如果“查看基于控制器的状态栏外观”==是有效的，则此解决方案有效。|782094|@implementation+MFMailComposeViewController+(IOS7_StatusBarStyle)

-(UIStatusBarStyle)preferredStatusBarStyle
{
+++return+UIStatusBarStyleLightContent;
}

-(UIViewController+*)childViewControllerForStatusBarStyle
{
+++return+nil;
}

@end|code-block|syntax|javascript|782095|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|$]]

Try to add category to MFMailComposeViewController

EDIT: this solution works if "View controller-based status bar appearance" == YES

<pre><code>@implementation MFMailComposeViewController (IOS7_StatusBarStyle)

-(UIStatusBarStyle)preferredStatusBarStyle
{
 return UIStatusBarStyleLightContent;
}

-(UIViewController *)childViewControllerForStatusBarStyle
{
 return nil;
}

@end
</code></pre>

blocks|key|782396|text|在您的UIApplication+statusBarStyle的presentViewController完成块中设置MFMailComposeViewController。即|type|unstyled|depth|inlineStyleRanges|entityRanges|data|782397|++++MFMailComposeViewController+*mailVC+=+[[MFMailComposeViewController+alloc]+init];
++++[self.navigationController+presentViewController:mailVC+animated:YES+completion:%5E{
++++++++[[UIApplication+sharedApplication]+setStatusBarStyle:UIStatusBarStyleLightContent];
++++}];|code-block|syntax|javascript|782398|您还可能需要在Info.plist文件中将“基于视图控制器的状态栏外观”添加和/或设置为NO。|782399|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Set the UIApplication statusBarStyle in the completion block of presentViewController for your MFMailComposeViewController. i.e.

<pre><code> MFMailComposeViewController *mailVC = [[MFMailComposeViewController alloc] init];
 [self.navigationController presentViewController:mailVC animated:YES completion:^{
 [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
 }];
</code></pre>

You may also need to add and/or set "View controller-based status bar appearance" to NO in your Info.plist file.

blocks|key|3137751|text|对我来说，诀窍是：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3137752|子类MFMailComposeViewController|unordered-list-item|3137753|如答案6所述，重写两种方法
-(UIStatusBarStyle)preferredStatusBarStyle;
-(UIViewController+*)childViewControllerForStatusBarStyle;|offset|length|style|CODE|3137754|按以下方式重写viewDidLoad：
-(void)viewDidLoad+{
[super+viewDidLoad];
[self+preferredStatusBarStyle];
[self+setNeedsStatusBarAppearanceUpdate];
}|3137755|3137756|3137757|entityMap^0|0|0|E|17|1M|1M|0|K|K|15|K|1Q|V|2M|15|3S|1|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$]]|$1|E|3|F|5|D|7|S|8|@$G|T|H|U|I|J]|$G|V|H|W|I|J]]|9|@]|A|$]]|$1|K|3|L|5|D|7|X|8|@$G|Y|H|Z|I|J]|$G|10|H|11|I|J]|$G|12|H|13|I|J]|$G|14|H|15|I|J]|$G|16|H|17|I|J]]|9|@]|A|$]]|$1|M|3|-4|5|6|7|18|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|19|8|@]|9|@]|A|$]]|$1|O|3|-4|5|6|7|1A|8|@]|9|@]|A|$]]]|P|$]]

What did the trick for me was:

<ul>
<li>Subclass MFMailComposeViewController</li>
<li>Override the two methods as described in answer 6

<code>-(UIStatusBarStyle)preferredStatusBarStyle;</code>

<code>-(UIViewController *)childViewControllerForStatusBarStyle;</code></li>
<li>Override viewDidLoad as follows:

<code>-(void)viewDidLoad { 
 [super viewDidLoad]; 
 [self preferredStatusBarStyle]; 
 [self setNeedsStatusBarAppearanceUpdate]; 
}</code></li>
</ul>

blocks|key|3137787|text|有时，它将无法正确更新状态栏样式。你应该用|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3137788|+[self+setNeedsStatusBarAppearanceUpdate];|code-block|syntax|javascript|3137789|若要说iOS刷新状态栏样式，请手动。希望有人能省点时间知道。|3137790|[self+presentViewController:picker+animated:YES+completion:%5E{
++++[[UIApplication+sharedApplication]+setStatusBarStyle:UIStatusBarStyleLightContent];
+++++[self+setNeedsStatusBarAppearanceUpdate];
}];|3137791|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]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

Some times it will not update the status bar style properly. You should use 

<pre><code> [self setNeedsStatusBarAppearanceUpdate];
</code></pre>

To say iOS to refresh the status bar style, manually. Hope someone would save some time on knowing it.

<pre><code>[self presentViewController:picker animated:YES completion:^{
 [[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];
 [self setNeedsStatusBarAppearanceUpdate];
}];
</code></pre>

blocks|key|1995464|text|[self+presentViewController:mailViewController+animated:YES+completion:%5E(void)+{+[[UIApplication+sharedApplication]+setStatusBarHidden:NO+withAnimation:UIStatusBarAnimationNone];

[[UIApplication+sharedApplication]+setStatusBarStyle:UIStatusBarStyleLightContent+animated:YES];+}];|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1995465|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>[self presentViewController:mailViewController animated:YES completion:^(void) { [[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationNone];

[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent animated:YES]; }];
</code></pre>

blocks|key|3137813|text|在我的例子中，我使用了“基于视图控制器的状态栏外观”，并呈现带有自定义自定义转换的模态视图控制器，然后从那里显示MFMailComposeViewController。在这种情况下，默认情况下，iOS只尊重/使用呈现的或“根”视图控制器的preferredStatusBarStyle方法。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|CODE|entityRanges|data|3137814|因此，一旦我在我的根视图控制器中超过了childViewControllerForStatusBarStyle，在我的模态视图控制器中使用了preferredStatusBarStyle，一切都如预期的那样工作.就像这样：|3137815|//+in+RootViewController.m+...
-+(UIViewController+*)childViewControllerForStatusBarStyle+{
++++return+self.modalViewController;
}

//+in+ModalViewController.m+...
-+(UIStatusBarStyle)preferredStatusBarStyle+{
++++if+(self.mailController+!=+nil)
++++++++return+UIStatusBarStyleDefault;
++++return+UIStatusBarStyleLightContent;
}|code-block|syntax|javascript|3137816|entityMap^0|31|10|3B|N|0|0|33|J|10|1Y|N|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|D]]|E|@]|F|$]]|$1|G|3|H|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|D]|$9|Z|A|10|B|D]]|E|@]|F|$]]|$1|I|3|J|5|K|7|11|8|@]|E|@]|F|$L|M]]|$1|N|3|-4|5|6|7|12|8|@]|E|@]|F|$]]]|O|$]]

In my case, I was using "view controller-based status bar appearance" and presenting a modal view controller with a custom segue transition and then presenting the MFMailComposeViewController from there. In this situation, by default, iOS only respects/uses the presenting or "root" view controller's <code>preferredStatusBarStyle</code> method.

So once I overrode <code>childViewControllerForStatusBarStyle</code> in my root view controller and <code>preferredStatusBarStyle</code> in my modal view controller, everything worked as expected... something like this:

<pre><code>// in RootViewController.m ...
- (UIViewController *)childViewControllerForStatusBarStyle {
 return self.modalViewController;
}

// in ModalViewController.m ...
- (UIStatusBarStyle)preferredStatusBarStyle {
 if (self.mailController != nil)
 return UIStatusBarStyleDefault;
 return UIStatusBarStyleLightContent;
}
</code></pre>

blocks|key|3137886|text|以上所有的答案对我都没有用。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3137887|我有两个问题。|3137888|黑色状态栏|ordered-list-item|3137889|标题栏上的透明层|3137890|3137891|3137892|​|3137893|📷|atomic|offset|length|3137894|3137895|解决方案|3137896|黑色状态-我删除所有导航条自定义
//+AppDelegate中下面一行的注释
[UINavigationBar外观设置背景图片:UIImage：@“nav_bg”forBarMetrics:UIBarMetricsDefault；|style|BOLD|3137897|透明标题栏-+set+navigationBarHidden+=+Yes+for+MFMailComposeViewController
composeViewController.navigationBarHidden+=+YES；|3137898|3137899|3137900|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/2470d2cc7950cdc5577569fab9dae784.png|imageAlt^0|0|0|0|0|0|0|0|0|1|0|0|0|0|0|4|0|0|5|0|0|0^^$0|@$1|2|3|4|5|6|7|1B|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|1C|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|1D|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|1E|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|1H|8|@]|9|@]|A|$]]|$1|M|3|N|5|O|7|1I|8|@]|9|@$P|1J|Q|1K|1|1L]]|A|$]]|$1|R|3|L|5|6|7|1M|8|@]|9|@]|A|$]]|$1|S|3|T|5|6|7|1N|8|@]|9|@]|A|$]]|$1|U|3|V|5|F|7|1O|8|@$P|1P|Q|1Q|W|X]]|9|@]|A|$]]|$1|Y|3|Z|5|F|7|1R|8|@$P|1S|Q|1T|W|X]]|9|@]|A|$]]|$1|10|3|-4|5|6|7|1U|8|@]|9|@]|A|$]]|$1|11|3|-4|5|6|7|1V|8|@]|9|@]|A|$]]|$1|12|3|-4|5|6|7|1W|8|@]|9|@]|A|$]]]|13|$14|$5|15|16|17|A|$18|19|1A|-4]]]]

None of above answers are work for me.

I have two issues.

<ol>
<li>Black status bar</li>
<li>transparent layer on title bar</li>
</ol>

<img src="https://i.stack.imgur.com/1L6PN.png" alt="enter image description here">

Solution 

<ol>
<li>Black status - I remove all navigation bar customization

// comment below line in AppDelegate

[[UINavigationBar appearance] setBackgroundImage:[UIImage imageNamed:@"nav_bg"] forBarMetrics:UIBarMetricsDefault];</li>
<li>Transparent title bar - set navigationBarHidden = Yes for MFMailComposeViewController

composeViewController.navigationBarHidden = YES;</li>
</ol>

blocks|key|1995622|text|我正在iOS8中构建一个应用程序，对于所有本机功能，如邮件编写器、照相机等，状态栏都有问题。以下将解决您的问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1995623|将以下内容放入您的plist文件|1995624|++<key>UIStatusBarHidden</key>
++<false/>
++<key>UIViewControllerBasedStatusBarAppearance</key>
++<false/>|code-block|syntax|javascript|1995625|如果在情节提要中使用添加行功能，则UIViewControllerBasedStatusBarAppearance不是选项。此外，当添加行时，它请求布尔值(是/否)。它不能是源代码中的NO字符串，它必须是一个假布尔值。将plist作为源代码打开，并添加上面的行。删除你以前的尝试。现在，您将能够成功地应用在网络上找到的许多不完整答案中给出的代码片段。|1995626|现在，您可以在应用程序委托文件和/或控制器本身中添加全局更改。如果没有上述设置，我尝试过的所有堆栈溢出代码在使用本机函数时都失败了。现在一切都很完美。|1995627|作为一种测试，将对任何星载“完成”调用的调用替换为|1995628|++++completion:%5E{[[UIApplication+sharedApplication]+setStatusBarStyle:UIStatusBarStyleLightContent];}|1995629|entityMap^0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|S|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|T|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|U|8|@]|9|@]|A|$G|H]]|$1|I|3|J|5|6|7|V|8|@]|9|@]|A|$]]|$1|K|3|L|5|6|7|W|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|X|8|@]|9|@]|A|$]]|$1|O|3|P|5|F|7|Y|8|@]|9|@]|A|$G|H]]|$1|Q|3|-4|5|6|7|Z|8|@]|9|@]|A|$]]]|R|$]]

I am building an application in iOS8 and have had issues with the status bar with all native functions such as the mail composer, the camera, etc.. The following will solve your issues:

Put the following in your plist file

<pre><code> &lt;key&gt;UIStatusBarHidden&lt;/key&gt;
 &lt;false/&gt;
 &lt;key&gt;UIViewControllerBasedStatusBarAppearance&lt;/key&gt;
 &lt;false/&gt;
</code></pre>

If you are using the add row feature in storyboard, the UIViewControllerBasedStatusBarAppearance is not an option. Also when adding a row it asks for BOOLEAN (YES/NO). It cannot be a NO string in the source code it must be a false boolean. Open the plist as source code instead and add the above rows. Remove your old attempts. You will now be able to successfully apply the code snippets given in so many incomplete answers found on the net.

You can now add global changes in the app delegate file and/or overrides in the controllers themselves. Without the above being in place all the stack overflow code I have tried has failed when using a native function. Now all is working perfectly.

As a test, replace any calls to any onboard "completion" calls with

<pre><code> completion:^{[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleLightContent];}
</code></pre>

blocks|key|782536|text|快速解决方案。将View+controller-based+status+bar+appearance设置为YES|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|782537|import+UIKit
import+MessageUI
import+AddressBookUI

extension+MFMailComposeViewController+{
++++override+func+preferredStatusBarStyle()+->+UIStatusBarStyle+{
++++++++return+.LightContent
++++}

++++override+func+childViewControllerForStatusBarStyle()+->+UIViewController?+{
++++++++return+nil
++++}
}

extension+ABPeoplePickerNavigationController+{
++++override+func+preferredStatusBarStyle()+->+UIStatusBarStyle+{
++++++++return+.LightContent
++++}

++++override+func+childViewControllerForStatusBarStyle()+->+UIViewController?+{
++++++++return+nil
++++}
}|code-block|syntax|javascript|782538|entityMap^0|8|17|1I|3|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

Swift solution.
Set <code>View controller-based status bar appearance</code> to <code>YES</code>

<pre><code>import UIKit
import MessageUI
import AddressBookUI

extension MFMailComposeViewController {
 override func preferredStatusBarStyle() -&gt; UIStatusBarStyle {
 return .LightContent
 }

 override func childViewControllerForStatusBarStyle() -&gt; UIViewController? {
 return nil
 }
}

extension ABPeoplePickerNavigationController {
 override func preferredStatusBarStyle() -&gt; UIStatusBarStyle {
 return .LightContent
 }

 override func childViewControllerForStatusBarStyle() -&gt; UIViewController? {
 return nil
 }
}
</code></pre>

blocks|key|3138001|text|初始化MFMailComposeViewController+UIApplication.shared.statusBarStyle似乎会更改为.default.因此，在演示之前保存状态，并在演示之后重新设置状态，解决了我的问题：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3138002|++++//+save+the+state,+otherwise+it+will+be+changed
++++let+sbs+=+UIApplication.shared.statusBarStyle

++++let+mailComposerVC+=+MailComposerVC()
++++mailComposerVC.navigationBar.barTintColor+=+UINavigationBar.appearance().barTintColor
++++mailComposerVC.navigationBar.tintColor+=+UINavigationBar.appearance().tintColor
++++mailComposerVC.navigationBar.barStyle+=+UINavigationBar.appearance().barStyle

++++if+MFMailComposeViewController.canSendMail()+{
++++++++APP_ROOT_VC?.present(mailComposerVC,+animated:+true,+completion:+{
++++++++++++//+reapply+the+saved+state
++++++++++++UIApplication.shared.statusBarStyle+=+sbs
++++++++})
++++}

++++public+class+MailComposerVC:+MFMailComposeViewController+{

++++++++public+override+var+preferredStatusBarStyle:+UIStatusBarStyle+{
++++++++++++return+UIApplication.shared.statusBarStyle
++++++++}
++++++++public+override+var+childViewControllerForStatusBarStyle+:+UIViewController?+{
++++++++++++return+nil
++++++++}
++++}|code-block|syntax|javascript|3138003|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|$]]

It seems that initializing the MFMailComposeViewController UIApplication.shared.statusBarStyle will change to .default... so, saving the state before and setting it again after presentation solved the problem for me:

<pre><code> // save the state, otherwise it will be changed
 let sbs = UIApplication.shared.statusBarStyle

 let mailComposerVC = MailComposerVC()
 mailComposerVC.navigationBar.barTintColor = UINavigationBar.appearance().barTintColor
 mailComposerVC.navigationBar.tintColor = UINavigationBar.appearance().tintColor
 mailComposerVC.navigationBar.barStyle = UINavigationBar.appearance().barStyle

 if MFMailComposeViewController.canSendMail() {
 APP_ROOT_VC?.present(mailComposerVC, animated: true, completion: {
 // reapply the saved state
 UIApplication.shared.statusBarStyle = sbs
 })
 }

 public class MailComposerVC: MFMailComposeViewController {

 public override var preferredStatusBarStyle: UIStatusBarStyle {
 return UIApplication.shared.statusBarStyle
 }
 public override var childViewControllerForStatusBarStyle : UIViewController? {
 return nil
 }
 }
</code></pre>

blocks|key|3138044|text|Swift3的解决方案|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3138045|将此添加到您的ViewController中：|3138046|extension+MFMailComposeViewController+{
++++open+override+var+preferredStatusBarStyle:+UIStatusBarStyle+{
++++++++return+.lightContent
++++}
++++open+override+var+childViewControllerForStatusBarStyle:+UIViewController?+{
++++++++return+nil
++++}
}|code-block|syntax|javascript|3138047|将View+controller-based+status+bar+appearance+>>+YES设置如下：|CODE|3138048|​|3138049|📷|atomic|3138050|3138051|感谢@SoftDesigner|3138052|另一个清洁的解决方案，可能不会改变您的应用程序中的其他设置。在显示邮件VC时，请更改完成块中的状态栏：|3138053|controller.present(mailComposeViewController,+animated:+true)+{
++++++++++++UIApplication.shared.statusBarStyle+=+.lightContent
++++++++}|3138054|entityMap|0|IMAGE|mutability|IMMUTABLE|imageUrl|https://developer.qcloudimg.com/http-save/yehe-900000/e65ad7a418144377466a8228390055a1.png|imageAlt^0|0|6|0|0|0|1|17|0|0|0|1|0|0|0|0|3|3|0|0^^$0|@$1|2|3|4|5|6|7|1A|8|@$9|1B|A|1C|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1D|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1E|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|1F|8|@$9|1G|A|1H|B|O]]|D|@]|E|$]]|$1|P|3|Q|5|6|7|1I|8|@]|D|@]|E|$]]|$1|R|3|S|5|T|7|1J|8|@]|D|@$9|1K|A|1L|1|1M]]|E|$]]|$1|U|3|Q|5|6|7|1N|8|@]|D|@]|E|$]]|$1|V|3|W|5|6|7|1O|8|@]|D|@]|E|$]]|$1|X|3|Y|5|6|7|1P|8|@$9|1Q|A|1R|B|C]]|D|@]|E|$]]|$1|Z|3|10|5|J|7|1S|8|@]|D|@]|E|$K|L]]|$1|11|3|-4|5|6|7|1T|8|@]|D|@]|E|$]]]|12|$13|$5|14|15|16|E|$17|18|19|-4]]]]

Solution for Swift3

Add this to your ViewController: 

<pre><code>extension MFMailComposeViewController {
 open override var preferredStatusBarStyle: UIStatusBarStyle {
 return .lightContent
 }
 open override var childViewControllerForStatusBarStyle: UIViewController? {
 return nil
 }
}
</code></pre>

Set <code>View controller-based status bar appearance</code> >> YES as below:

<a href="https://i.stack.imgur.com/I5sOv.png" rel="noreferrer"><img src="https://i.stack.imgur.com/I5sOv.png" alt="enter image description here"></a>

Thanks to @SoftDesigner

Another cleaner solution that may not change other settings in your app. While presenting the Mail VC change the status bar in the completion block:

<pre><code>controller.present(mailComposeViewController, animated: true) {
 UIApplication.shared.statusBarStyle = .lightContent
 }
</code></pre>

blocks|key|3138075|text|对于我来说，最简单的快捷3解决方案是：|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|3138076|extension+MFMailComposeViewController+{

++++open+override+func+viewDidAppear(_+animated:+Bool)+{
++++++++super.viewDidAppear(animated)

++++++++UIApplication.shared.statusBarStyle+=+.lightContent
++++}
}|code-block|syntax|javascript|3138077|entityMap^0|A|3|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

The easiest swift 3 solution for me was:

<pre><code>extension MFMailComposeViewController {

 open override func viewDidAppear(_ animated: Bool) {
 super.viewDidAppear(animated)

 UIApplication.shared.statusBarStyle = .lightContent
 }
}
</code></pre>

i have a feedback button in my ios 7 application with MFMailComposeViewController. After the user click this button the mailcomposer open but the statusbar changed to black. Have anybody a idea what can i do?

i have this problem only with ios7. i customizing my app for ios7.

<pre><code> MFMailComposeViewController *mailController = [[MFMailComposeViewController alloc] init];
 mailController.mailComposeDelegate = self;

 [mailController setSubject:@"Feedback"];
 // Fill out the email body tex
 NSString *emailBody = [NSString stringWithFormat:@"testest"],
 [UIDevice currentDevice].model,
 [UIDevice currentDevice].systemVersion];
 [mailController setMessageBody:emailBody isHTML:NO];
 [mailController setToRecipients:[NSArray arrayWithObjects:@"support@test.com",nil]];

 dispatch_async(dispatch_get_main_queue(), ^{
 [self presentModalViewController:mailController animated:YES];
}
</code></pre>

MFMailComposeViewController in iOS 7 statusbar are black

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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问MFMailComposeViewController中的iOS 7状态条是黑色的
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