Question

我将while使用NavigationBar backgroundColor，将dark使用statusBar textColor，但是当用户将主题iOS更改为深色时，我的statusBar中的textColor更改为while和while的{{1}} backgroundColor上，我什么都看不到。如何为我的应用禁用此更改？

Answer 1

iOS 13解决方案

int [][] myMatrix = new int[n+1][n+1];是UINavigationController（谁知道?）的子类！

因此，当展示嵌入在导航控制器中的视图控制器时，并不是真正展示嵌入的视图控制器；您正在展示导航控制器！ UIViewController作为UINavigationController的子类，继承了UIViewController和preferredStatusBarStyle，您可以根据需要设置它们。

以下任何一种方法都可以使用：

完全退出暗模式
- 在您的childForStatusBarStyle中，添加以下属性：
  - 键-info.plist（又称“用户界面样式”）
  - 价值-轻

在UIUserInterfaceStyle内覆盖preferredStatusBarStyle

UINavigationController（doc）-视图控制器的首选状态栏样式

子类或扩展preferredStatusBarStyle

UINavigationController

OR

class MyNavigationController: UINavigationController {
    override var preferredStatusBarStyle: UIStatusBarStyle {
        .lightContent
    }
}

在extension UINavigationController { open override var preferredStatusBarStyle: UIStatusBarStyle { .lightContent } }内覆盖childForStatusBarStyle
- UINavigationController（doc）-在系统需要视图控制器用于确定状态栏样式时调用
- 根据Apple的文档，
  
  “如果容器视图控制器从其子视图控制器之一派生其状态栏样式，请[重写此属性]并返回该子视图控制器。如果返回nil或不重写此方法，则状态栏样式为使用self。如果此方法的返回值发生变化，请调用setNeedsStatusBarAppearanceUpdate（）方法。“
- 换句话说，如果您不在此处实现解决方案3，则系统将退回到上述解决方案2。
- 子类或扩展childForStatusBarStyle
```
UINavigationController
```
  OR
```
class MyNavigationController: UINavigationController {
    override var childForStatusBarStyle: UIViewController? {
        topViewController
    }
}
```
- 您可以返回上面想要的任何视图控制器。我推荐以下之一：
  - {{1}中的extension UINavigationController { open override var childForStatusBarStyle: UIViewController? { topViewController } }（doc）-导航堆栈顶部的视图控制器
  - topViewController（共UINavigationController个）（{{3}}）-与导航界面中当前可见视图关联的视图控制器（提示：这可以包括“已显示的视图控制器在导航控制器本身的顶部”）

注意：如果您决定继承visibleViewController的子类，请记住通过IB中的身份检查器将该类应用于您的导航控制器。

P.S。我的代码使用Swift 5.1语法?

Answer 2

如果您将应用程序UIViewControllerBasedStatusBarAppearance中的info.plist键设置为YES，则可以在当前显示的视图控制器中覆盖状态栏样式：

override var preferredStatusBarStyle: UIStatusBarStyle {
    if #available(iOS 13, *) {
        return .darkContent
    } else {
        return .default
    }
}

Answer 3

您可以尝试使导航栏始终light

if #available(iOS 13.0, *) {
    navigationController?.navigationBar.overrideUserInterfaceStyle = .light
 }

Answer 4

您可以将扩展名写入UIStatusBarStyle：

extension UIStatusBarStyle {
    static var black: UIStatusBarStyle {
        if #available(iOS 13.0, *) {
            return .darkContent
        }
        return .default
    }
}

然后您可以轻松地在ViewControllers中使用

override var preferredStatusBarStyle: UIStatusBarStyle {
    .black
}

Answer 5

如果您使用的是UINavigationController ，请像这样在扩展名（或您自己的子类）中覆盖preferredStatusBarStyle（只是覆盖您的preferredStatusBarStyle视图控制器不起作用）：

extension UINavigationController {
  override open var preferredStatusBarStyle: UIStatusBarStyle {
    guard #available(iOS 13, *) else {
      return .default
    }
    return .darkContent
  }
}

正如弗兰克所说，UIViewControllerBasedStatusBarAppearance必须在您的YES中设置为info.plist

Answer 6

有两种方法可以解决此问题。在UINavigationController后代类中定义childViewControllerForStatusBarStyle函数：

@interface MyNavigationController : UINavigationController
...
@end

@implementation MyNavigationController
...
- (UIViewController *)childViewControllerForStatusBarStyle
{
    return self.topViewController;
}
...
@end

在那之后，您需要为每个控制器添加功能preferredStatusBarStyle。

第二个选项是为所有控制器定义preferredStatusBarStyle函数。但是此函数不应位于根控制器中，而应位于UINavigationController的后代类中。

@interface MyNavigationController : UINavigationController
...
@end

@implementation MyNavigationController
...
- (UIStatusBarStyle)preferredStatusBarStyle
{
    return UIStatusBarStyleLightContent;
}
...
@end

但是，即使在这种情况下，也必须为所有隐藏导航栏的控制器（如果有）定义函数preferredStatusBarStyle。

Answer 7

我已经做了类似的事情。

我具有切换功能，可根据显示的View Controller切换状态栏样式

// here AlertsRequest.create(phone, true) mocking as null. 
// But when actual call is made it creates a Object of AlertsRequest with phone as null & another parameter as true
// that's the reason mocking was creating for api.alerts("-1", null, null)
// here is it was api.alerts("-1", null, AlertsRequest(null, true))

api.alerts(id, userManager.getNonNullUserId(), AlertsRequest.create(phone, true))

这是最重要的部分

 void getAlerts(AlertsRequest request) {
  isPhoneLoadingData.setValue(true);

  alertDisposable =
        api.alerts(id,
          userManager.getNonNullUserId(), request)
          .doOnEvent((product, throwable) -> isPhoneLoadingData.postValue(false))
          .compose(RxSingleSchedulers.DEFAULT.applySchedulers())
          .subscribe(alertsData::setValue, errorData::setValue);
  }

其中isDarkStyle表示导航栏背景颜色为深色或浅色。如果颜色较暗，则文本（内容）应为浅色；如果颜色较浅，则文本（内容）应为默认色，或从iOS 13开始为黑暗。

总结：pip install jupyterlab独立于暗模式显示，这是应该做的。尽管C:\Users\HASAN>pip install jupyterlab Collecting jupyterlab Using cached https://files.pythonhosted.org/packages/2c/89/a4e048f198867f19d2a9f40d08c946d760ab06dd39d774940a20da47b5f9/jupyterlab-1.1.4-py2.py3-none-any.whl Requirement already satisfied: jinja2>=2.10 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from jupyterlab) (2.10.3) Requirement already satisfied: tornado!=6.0.0,!=6.0.1,!=6.0.2 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from jupyterlab) (6.0.3) Requirement already satisfied: notebook>=4.3.1 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from jupyterlab) (6.0.1) Collecting jupyterlab-server~=1.0.0 Using cached https://files.pythonhosted.org/packages/78/98/5b87b9d38176bd98f23b58a8fb730e5124618d68571a011abbd38ad4a842/jupyterlab_server-1.0.6-py3-none-any.whl Requirement already satisfied: MarkupSafe>=0.23 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from jinja2>=2.10->jupyterlab) (1.1.1) Requirement already satisfied: Send2Trash in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (1.5.0) Requirement already satisfied: traitlets>=4.2.1 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (4.3.3) Requirement already satisfied: pyzmq>=17 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (18.1.0) Requirement already satisfied: jupyter-core>=4.4.0 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (4.6.0) Requirement already satisfied: ipykernel in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (5.1.2) Requirement already satisfied: jupyter-client>=5.3.1 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (5.3.4) Requirement already satisfied: nbformat in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (4.4.0) Requirement already satisfied: nbconvert in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (5.6.0) Requirement already satisfied: terminado>=0.8.1 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (0.8.2) Requirement already satisfied: prometheus-client in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (0.7.1) Requirement already satisfied: ipython-genutils in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from notebook>=4.3.1->jupyterlab) (0.2.0) Collecting json5 Using cached https://files.pythonhosted.org/packages/30/44/062543d4a6718f99d82e5ecf9140dbdee8a03122f2c34fbd0b0609891707/json5-0.8.5-py2.py3-none-any.whl Requirement already satisfied: jsonschema>=3.0.1 in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from jupyterlab-server~=1.0.0->jupyterlab) (3.1.1) Requirement already satisfied: decorator in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from traitlets>=4.2.1->notebook>=4.3.1->jupyterlab) (4.4.0) Requirement already satisfied: six in c:\users\hasan\appdata\local\packages\pythonsoftwarefoundation.python.3.7_qbz5n2kfra8p0\localcache\local-packages\python37\site-packages (from traitlets>=4.2.1->notebook>=4.3.1->jupyterlab) (1.12.0) Requirement already satisfied: pywin32>=1.0; 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Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location. WARNING: The scripts jlpm.exe, jupyter-lab.exe, jupyter-labextension.exe and jupyter-labhub.exe are installed in 'C:\Users\HASAN\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.7_qbz5n2kfra8p0\LocalCache\local-packages\Python37\Scripts' which is not on PATH. Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location. Successfully installed json5-0.8.5 jupyterlab-1.1.4 jupyterlab-server-1.0.6 C:\Users\HASAN>jupyter notebook 'jupyter' is not recognized as an internal or external command, operable program or batch file.可能会发生暗模式更改！

Answer 8

此扩展程序可帮助您更改状态栏文本的颜色，并且还支持iOS 13 https://stackoverflow.com/a/59767435/10512612

Answer 9

如果其他人发现上述答案都不起作用（就像我所做的那样），如果您在 UIWindowScene 中有多个窗口，它将使用最顶层的窗口而不是键，则存在一个非常特殊的边缘情况用于确定状态栏外观的窗口。

例如，如果您将 windowLevel 设置为 1 的关键窗口和 windowLevel 设置为 1.1 的辅助窗口，UIKit 将（对于无论出于何种原因）询问您次要窗口中的视图控制器的状态栏外观，而不是关键窗口中的视图控制器，即使其 alpha 为 0。

我们的解决方法是仅在辅助窗口处于活动状态时将其置于较高级别，并在其隐藏时将其降低到关键窗口下方。

如何通过darkMode iOS 13禁用更改statusBar textColor

9 个答案:

iOS 13解决方案