【Swift】 iOS15导航栏适配
原理就不多说了，直接参考之前写的Object-C版本适配就可以
直接对UINavigationController扩展设置navBarStyle的方法便于调用
上才艺
enum NavigationBarStyle {
///navbar APP主题
case theme
///navbar 透明
case clear
///navbar 白色的
case white
}
extension UINavigationController {
func navBarStyle(_ style:NavigationBarStyle) {
switch style {
case .theme:
navigationBar.barStyle = .black
let attrDic = [NSAttributedString.Key.foregroundColor:UIColor.black,
NSAttributedString.Key.font:UIFont.systemFont(ofSize: 18.0)]
if #available(iOS 13.0, *) {
let barApp = UINavigationBarAppearance()
barApp.backgroundColor = .white
//基于backgroundColor或backgroundImage的磨砂效果
barApp.backgroundEffect = nil
//阴影颜色（底部分割线），当shadowImage为nil时，直接使用此颜色为阴影色。如果此属性为nil或clearColor（需要显式设置），则不显示阴影。
//barApp.shadowColor = nil;
//标题文字颜色
barApp.titleTextAttributes = attrDic
navigationBar.scrollEdgeAppearance = barApp
navigationBar.standardAppearance = barApp
}else {
navigationBar.titleTextAttributes = attrDic
let navBgImg = UIImage(named: "nav_bg")!.withRenderingMode(.alwaysOriginal)
navigationBar.shadowImage = UIImage()
navigationBar.setBackgroundImage(navBgImg, for: .default)
}
//透明设置
navigationBar.isTranslucent = false;
//navigationItem控件的颜色
navigationBar.tintColor = .white
case .clear:
navigationBar.barStyle = .black
let attrDic = [NSAttributedString.Key.foregroundColor: UIColor.white,
NSAttributedString.Key.font: UIFont.systemFont(ofSize: 18)]
if #available(iOS 13.0, *) {
let barApp = UINavigationBarAppearance()
barApp.backgroundColor = .clear
//基于backgroundColor或backgroundImage的磨砂效果
barApp.backgroundEffect = nil
//阴影颜色（底部分割线），当shadowImage为nil时，直接使用此颜色为阴影色。如果此属性为nil或clearColor（需要显式设置），则不显示阴影。
//barApp.shadowColor = nil;
//标题文字颜色
barApp.titleTextAttributes = attrDic
navigationBar.scrollEdgeAppearance = nil
navigationBar.standardAppearance = barApp
}else {
navigationBar.titleTextAttributes = attrDic
navigationBar.shadowImage = UIImage()
let navBgImg = UIImage.imgColor(UIColor.clear, CGSize(width: SCREEN_WIDTH, height: kNav_Height)).withRenderingMode(.alwaysOriginal)
navigationBar.setBackgroundImage(navBgImg, for: .default)
}
//透明设置
navigationBar.isTranslucent = true;
//navigationItem控件的颜色
//navigationBar.tintColor = .white
case .white:
navigationBar.barStyle = .default
let attrDic = [NSAttributedString.Key.foregroundColor: UIColor.black,
NSAttributedString.Key.font: UIFont.systemFont(ofSize: 18)]
if #available(iOS 13.0, *) {
let barApp = UINavigationBarAppearance()
barApp.backgroundColor = .white
//基于backgroundColor或backgroundImage的磨砂效果
barApp.backgroundEffect = nil
//阴影颜色（底部分割线），当shadowImage为nil时，直接使用此颜色为阴影色。如果此属性为nil或clearColor（需要显式设置），则不显示阴影。
//barApp.shadowColor = nil;
//标题文字颜色
barApp.titleTextAttributes = attrDic
navigationBar.scrollEdgeAppearance = barApp
navigationBar.standardAppearance = barApp
}else {
navigationBar.titleTextAttributes = attrDic
let navBgImg = UIImage.imgColor(UIColor.white, CGSize(width: SCREEN_WIDTH, height: kNav_Height)).withRenderingMode(.alwaysOriginal)
navigationBar.shadowImage = UIImage()
navigationBar.setBackgroundImage(navBgImg, for: .default)
}
//透明设置
navigationBar.isTranslucent = false;
//navigationItem控件的颜色
navigationBar.tintColor = .black
}
}
}
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