c# - 更改导航栏标题的颜色

Question

我正在尝试使用 MonoTouch 在 Xamarin 中设置 UINavigationBar 的样式。在 UIViewController 的构造函数中，我尝试了以下操作:

//this.NavigationController.NavigationBar.TintColor = UIColor.Magenta;
UINavigationBar.Appearance.TintColor = UIColor.Yellow;

但如果我尝试在模拟器中运行它，则没有任何改变。我应该把这段代码放在哪里？如何使用 RGB 颜色(使用 UIColor.FromRGB (0, 127, 14)？)我的代码是否正确？

Answer 1

我的解决方案:

//AppDelegate.cs
public partial class AppDelegate : UIApplicationDelegate
{
    // class-level declarations
    UIWindow window;
    public static UIStoryboard Storyboard = UIStoryboard.FromName ("MainStoryboard", null);
    public static UIViewController initialViewController;

    // ...
    public override bool FinishedLaunching (UIApplication app, NSDictionary options)
    {
        window = new UIWindow (UIScreen.MainScreen.Bounds);
        initialViewController = Storyboard.InstantiateInitialViewController () as UIViewController;

        UINavigationBar.Appearance.SetTitleTextAttributes (
            new UITextAttributes () { TextColor = UIColor.FromRGB (0, 127, 14) });

        window.RootViewController = initialViewController;
        window.MakeKeyAndVisible ();
        return true;
    }
}