ios – UIDocumentPickerViewController导航栏按钮颜色

当我使用下面的代码时,它可以工作,但它也改变了我的导航栏.

UINavigationBar.appearance().TintColor = .red

感谢帮助

码：

func open() {
        UINavigationBar.appearance().barTintColor = .green
        let documentsController = UIDocumentPickerViewController(documentTypes: makeDocumentTypesList(),in: .import)
        documentsController.delegate = self
        viewControllerProvider.getViewController().present(documentsController,animated: true,completion: nil)
    }

解决方法

if #available(iOS 11.0,*) {
    UINavigationBar.appearance(whenContainedInInstancesOf: [UIDocumentBrowserviewController.self]).TintColor = nil
}