如何在iOS 13中更改状态栏Alpha？ [英] How can I change Status Bar Alpha in iOS 13?

问题描述

我想在iOS 13中更改状态栏Alpha。

I want to change the Status Bar Alpha in iOS 13.

let statusBarWindow = UIApplication.shared.value(forKey: "statusBarWindow") as? UIWindow
statusBarWindow?.alpha = 0.5

当我尝试此操作时，应用程序崩溃（线程1：信号SIGABRT）。

When I try this, the app crashes (Thread 1: signal SIGABRT).

推荐答案

由于未捕获的异常而终止应用程序
'NSInternalInconsistencyException ，原因：在UIApplication上名为-statusBar或
-statusBarWindow的应用程序：必须更改此代码，因为不再有状态栏或状态栏窗口。而是在窗口场景上使用
statusBarManager对象。’

Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'App called -statusBar or -statusBarWindow on UIApplication: this code must be changed as there's no longer a status bar or status bar window. Use the statusBarManager object on the window scene instead.'

您可以参考以下答案来解决崩溃问题。

You can refer to the following answer to resolve your crash.

var statusBarUIView: UIView? {
        if #available(iOS 13.0, *) {
            let tag = 38482458
            if let statusBar = self.keyWindow?.viewWithTag(tag) {
                return statusBar
            } else {
                let statusBarView = UIView(frame: UIApplication.shared.statusBarFrame)
                statusBarView.tag = tag

                self.keyWindow?.addSubview(statusBarView)
                return statusBarView
            }
        } else {
            if responds(to: Selector(("statusBar"))) {
                return value(forKey: "statusBar") as? UIView
            }
        }
        return nil
    }

这些提到的解决方案对我有用。

These mentioned solutions worked for me.

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