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
在AppDelegate中,这已经全局地改变了导航栏的格式:
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
UINavigationBar.appearance().setBackgroundImage(UIImage(), forBarPosition: UIBarPosition.Any, barMetrics: UIBarMetrics.Default)
UINavigationBar.appearance().shadowImage = UIImage()
UINavigationBar.appearance().tintColor = UIColor.whiteColor()
UINavigationBar.appearance().barTintColor = UIColor.redColor()
UINavigationBar.appearance().translucent = false
UINavigationBar.appearance().clipsToBounds = false
UINavigationBar.appearance().backgroundColor = UIColor.redColor()
UINavigationBar.appearance().titleTextAttributes = [NSFontAttributeName : (UIFont(name: "FONT NAME", size: 18))!, NSForegroundColorAttributeName: UIColor.whiteColor()] }
还没有在特定的VC上实现任何不同的东西,但这将帮助90%的人
其他回答
如果你想保持半透明,你不想子类化每个UINavigationController在你的应用:
#import <objc/runtime.h>
@implementation UINavigationController (NoShadow)
+ (void)load {
Method original = class_getInstanceMethod(self, @selector(viewWillAppear:));
Method swizzled = class_getInstanceMethod(self, @selector(swizzled_viewWillAppear:));
method_exchangeImplementations(original, swizzled);
}
+ (UIImageView *)findHairlineImageViewUnder:(UIView *)view {
if ([view isKindOfClass:UIImageView.class] && view.bounds.size.height <= 1.0) {
return (UIImageView *)view;
}
for (UIView *subview in view.subviews) {
UIImageView *imageView = [self findHairlineImageViewUnder:subview];
if (imageView) {
return imageView;
}
}
return nil;
}
- (void)swizzled_viewWillAppear:(BOOL)animated {
UIImageView *shadow = [UINavigationController findHairlineImageViewUnder:self.navigationBar];
shadow.hidden = YES;
[self swizzled_viewWillAppear:animated];
}
@end
快速做这件事的方法:
UINavigationBar.appearance().setBackgroundImage(UIImage(), for: .any, barMetrics: .default)
UINavigationBar.appearance().shadowImage = UIImage()
你应该在UISearchBar的底部添加一个视图
let rect = searchController.searchBar.frame;
let lineView : UIView = UIView.init(frame: CGRect.init(x: 0, y: rect.size.height-1, width: rect.size.width, height: 1))
lineView.backgroundColor = UIColor.init(hexString: "8CC73E")
searchController.searchBar.addSubview(lineView)
在Xamarin Forms中,这对我来说很管用。只需在AppDelegate.cs上添加这个:
UINavigationBar.Appearance.ShadowImage = new UIImage();
适用于iOS 13+
窍门是用透明背景初始化'UINavigationBarAppearance'。然后,您可以轻松地删除导航栏的水平线。
let appearance = UINavigationBarAppearance()
appearance.configureWithTransparentBackground()
appearance.backgroundColor = .green // Required background color
最后,按照apple的建议将外观更改添加到导航项中。
self.navigationItem.standardAppearance = appearance
self.navigationItem.scrollEdgeAppearance = appearance
self.navigationItem.compactAppearance = appearance