IOS 15 自定义导航栏图片显示问题的解决

 导航栏为图片的时候，进入是白色的，需要往上滑一点才能出现

OC 

UIImage *bgImage = [[UIImage imageNamed:@"nav_other"] resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0) resizingMode:UIImageResizingModeStretch];

if (@available(iOS 13.0, *)) {

UINavigationBarAppearance *barApp = [UINavigationBarAppearance new];

[barApp setBackgroundImage:bgImage];

self.navigationController.navigationBar.scrollEdgeAppearance = barApp;

self.navigationController.navigationBar.standardAppearance = barApp;

} else {

// Fallback on earlier versions

}

 

swift  

if #available(iOS 13.0, *) {

let barApp = UINavigationBarAppearance.init()

barApp.backgroundImage = bgImg

self.navigationController?.navigationBar.scrollEdgeAppearance = barApp

self.navigationController?.navigationBar.standardAppearance = barApp

barApp.titleTextAttributes = [NSAttributedString.Key.font: UIFont.italicSystemFont(ofSize: 16),NSAttributedString.Key.foregroundColor: UIColor.white]

barApp.titleTextAttributes =

[NSAttributedString.Key.foregroundColor: UIColor.white]

}