我有一个应用程序,有时需要它的导航栏融入内容。
有人知道怎么去掉或者改变这个烦人的小条的颜色吗?
在下图中,我说的是根视图控制器下面1px的高度线
我有一个应用程序,有时需要它的导航栏融入内容。
有人知道怎么去掉或者改变这个烦人的小条的颜色吗?
在下图中,我说的是根视图控制器下面1px的高度线
当前回答
if #available(iOS 13.0, *) {
let appearance = UINavigationBarAppearance()
appearance.backgroundColor = Colors.color_app
appearance.titleTextAttributes = [.foregroundColor : UIColor.white]
appearance.largeTitleTextAttributes = [.foregroundColor : UIColor.white]
appearance.shadowColor = .clear
appearance.shadowImage = UIImage()
UINavigationBar.appearance().tintColor = .white
UINavigationBar.appearance().standardAppearance = appearance
UINavigationBar.appearance().compactAppearance = appearance
UINavigationBar.appearance().scrollEdgeAppearance = appearance
} else {
UINavigationBar.appearance().barTintColor = Colors.color_app
UINavigationBar.appearance().tintColor = .white
UINavigationBar.appearance().titleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor.white]
if #available(iOS 11.0, *) {
UINavigationBar.appearance().largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
}
UINavigationBar.appearance().isTranslucent = false
UINavigationBar.appearance().shadowImage = UIImage()
UINavigationBar.appearance().setBackgroundImage(UIImage(), for: .default)
}
其他回答
编写自己的初始化式:D
import Foundation
import UIKit
extension UINavigationController {
convenience init(rootViewController : UIViewController, hidesShadow : Bool) {
self.init(rootViewController : rootViewController)
self.navigationBar.setValue(hidesShadow, forKey: "hidesShadow")
if hidesShadow {
self.extendedLayoutIncludesOpaqueBars = true
self.navigationBar.isTranslucent = false
}
}
}
在子视图中找到发际线的一个很好的简短Swift函数是:
func findHairLineInImageViewUnder(view view: UIView) -> UIImageView? {
if let hairLineView = view as? UIImageView where hairLineView.bounds.size.height <= 1.0 {
return hairLineView
}
if let hairLineView = view.subviews.flatMap({self.findHairLineInImageViewUnder(view: $0)}).first {
return hairLineView
}
return nil
}
if #available(iOS 13.0, *) {
let appearance = UINavigationBarAppearance()
appearance.backgroundColor = Colors.color_app
appearance.titleTextAttributes = [.foregroundColor : UIColor.white]
appearance.largeTitleTextAttributes = [.foregroundColor : UIColor.white]
appearance.shadowColor = .clear
appearance.shadowImage = UIImage()
UINavigationBar.appearance().tintColor = .white
UINavigationBar.appearance().standardAppearance = appearance
UINavigationBar.appearance().compactAppearance = appearance
UINavigationBar.appearance().scrollEdgeAppearance = appearance
} else {
UINavigationBar.appearance().barTintColor = Colors.color_app
UINavigationBar.appearance().tintColor = .white
UINavigationBar.appearance().titleTextAttributes = [NSAttributedString.Key.foregroundColor : UIColor.white]
if #available(iOS 11.0, *) {
UINavigationBar.appearance().largeTitleTextAttributes = [NSAttributedString.Key.foregroundColor: UIColor.white]
}
UINavigationBar.appearance().isTranslucent = false
UINavigationBar.appearance().shadowImage = UIImage()
UINavigationBar.appearance().setBackgroundImage(UIImage(), for: .default)
}
这里有一个不使用任何图像的方法,这是唯一适合我的方法:
self.navigationController.navigationBar.layer.shadowOpacity = 0;
不幸的是,您需要在每个不希望出现该行的文件上执行此操作。在appDelegate中没有办法这样做。
编辑:
设置shadowColor为nil是不需要的,这是你唯一需要的行。
简单的解决方案
let navigationBar = self.navigationController?.navigationBar
navigationBar?.setBackgroundImage(UIImage(), forBarPosition: UIBarPosition.Any, barMetrics: UIBarMetrics.Default)
navigationBar?.shadowImage = UIImage()