ios - 在 iOS 中使用背景图像作为导航栏时应用程序崩溃

Question

我正在为导航栏使用背景图片。它在呈现 View Controller 时使我的应用程序崩溃。我还有所有 View Controller View 的背景图像。我正在使用这样的实现

func setNavigationAppearance(tintColor : UIColor, barTintColor : UIColor?) {
    let navigationBarAppearace = appDelegateObj.navigationController!.navigationBar

    navigationBarAppearace.tintColor = tintColor
    navigationBarAppearace.barTintColor = barTintColor
    navigationBarAppearace.translucent = false

    //navigationBarAppearace.
    //Settign the Custome Font and TextColor

    if let font = UIFont(name: FontCustom.Regular, size: 17) {
        UINavigationBar.appearance().titleTextAttributes = [NSFontAttributeName: font ,NSForegroundColorAttributeName : tintColor]
    }
}

我用这张图片调用这个方法让 navigationColor : UIColor = UIColor(patternImage: UIImage(named: AppImagesName.PatternRed)!)

我正在获取这些崩溃日志。

terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Only RGBA or White color spaces are supported in this situation

我用谷歌搜索了一下，所有人都说删除背景图片或者这是 iOS 错误。

所以请告诉我可能的解决方案。

Answer 1

要为 NavigationBar 设置背景图片，请使用以下代码:

func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey: Any]?) -> Bool {
        // Override point for customization after application launch.

        if let myImage = UIImage(named: "navBarImage.jpg"){
            UINavigationBar.appearance().setBackgroundImage(myImage, for: .default)
        }


        return true
    }

截图示例:

要测试示例，请查看我的 GitHub 链接:

https://github.com/k-sathireddy/NavigationBarBackgroundImageSample