OC可以用吗？可以的话，也来个OC的使用demo呗 about eachnavigationbar HOT 2 CLOSED

nav.navigation.configuration.titleTextAttributes = [.foregroundColor: UIColor.blue]

nav.navigation.configuration.barTintColor = UIColor.red

nav.navigation.configuration.shadowImage = UIImage(named: "shadow")

nav.navigation.configuration.backBarButtonItem = .init(style: .image(UIImage(named: "back")), tintColor: UIColor.red)

nav.navigation.configuration.setBackgroundImage(UIImage(named: "nav"), for: .any, barMetrics: .default)

// 一般用法同系统组件
navigation.bar  -> EachNavigationBar -> UINavigationBar
navigation.item -> UINavigationItem

// 隐藏导航栏
navigation.bar.isHidden = true

// 设置导航栏透明度
navigation.bar.alpha = 0.5

// 设置标题透明度
navigation.bar.setTitleAlpha(0.5)

// 设置 barButtonItem 透明度
navigation.bar.setTintAlpha(0.5)
// 如果 barButtonItem 是自定义视图
navigation.item.leftBarButtonItem?.customView?.alpha = 0.5
// 如果 barButtonItem 自定义了 tintColor
navigation.item.leftBarButtonItem?.tintColor = navigation.item.leftBarButtonItem?.tintColor?.withAlphaComponent(0.5)

// 移除毛玻璃效果
navigation.bar.isTranslucent = false

// 隐藏底部阴影
navigation.bar.isShadowHidden = true

// 设置状态栏样式
navigation.bar.statusBarStyle = .lightContent

// 设置返回按钮
navigation.bar.backBarButtonItem = .init(style: .title("Back"), tintColor: .red)

// 允许返回事件
navigation.bar.backBarButtonItem.shouldBack = { item in
    // do something
    return false
}

// 返回事件之前回调
navigation.bar.backBarButtonItem.willBack = {
    // do something
}

// 返回事件之后回调
navigation.bar.backBarButtonItem.didBack = {
    // do something
}

// 如果想自定义导航栏位置，请将下面属性设为 false
navigation.bar.automaticallyAdjustsPosition = false

// 导航栏附加高度
navigation.bar.additionalHeight = 14

// 导航栏附加视图
navigation.bar.additionalView = UIView()

// 导航栏阴影
navigation.bar.shadow = Shadow(
    color: UIColor.black.cgColor,
    opacity: 0.5,
    offset: CGSize(width: 0, height: 3))

// 开启大标题
nav.navigation.prefersLargeTitles()

// 显示或隐藏大标题
navigation.bar.prefersLargeTitles = true

// 设置大标题透明度
navigation.bar.setLargeTitleAlpha(0.5)