透明导航栏 iOS 13

Question

iOS 13 无法创建透明 NavigationBar。

我有自定义 UINavigationBar，我在其中配置 UINavigationBarAppearance

override init(frame: CGRect) {
    super.init(frame: frame)
    self.configure()
}

required init?(coder: NSCoder) {
    super.init(coder: coder)
    self.configure()
}

配置代码：

let appearance = UINavigationBarAppearance()
appearance.configureWithTransparentBackground()
appearance.shadowColor = .clear
appearance.backgroundColor = .clear

并将其设置为：

self.compactAppearance = appearance
self.standardAppearance = appearance
self.scrollEdgeAppearance = appearance

结果我得到了这个：

预期结果：NavigationBar 应该是透明的

Answer 1

为我工作：

self.compactAppearance = appearance
self.standardAppearance = appearance
self.scrollEdgeAppearance = appearance
self.backgroundColor = appearance.backgroundColor

Answer 2

修改外观代码为：-

let appearance = UINavigationBarAppearance()
appearance.configureWithTransparentBackground()
appearance.shadowColor = .clear
appearance.backgroundColor = .clear
appearance.backgroundImage = nil
appearance.shadowImage = nil