ios 15导航栏适配

if (@available(iOS 15.0, *)){
        UINavigationBarAppearance *appearance = [UINavigationBarAppearance new];
        [appearance configureWithOpaqueBackground] ;
        UINavigationBar.appearance.standardAppearance = appearance ;
        UINavigationBar.appearance.compactAppearance = appearance ;
        UINavigationBar.appearance.scrollEdgeAppearance =appearance ;
        appearance.shadowColor = kColor_Controller ;
        appearance.backgroundColor = kColor_Controller ;
    }
//ios15 的适配，右划时，可能会有半透明的效果，我们配合下面的方法，
// 防止push时有阴影动画的bug
    [self.navigationBar setBackgroundImage:[UIImage createImageWithColor:RGB_COLOR(246, 246, 246)] forBarMetrics:UIBarMetricsDefault];