使用MonoTouch向导航栏添加自定义后退按钮

   public class CustomNavigationController : UIViewController

   {

       public CustomNavigationController () : base()

       {

           // Initialize your controller here

       }

   }

   public class CustomNavigationController : UIViewController

   {

       // Add this method to your CustomNavigationController class

       public override void ViewDidLoad()

       {

           base.ViewDidLoad();

           // Create the button

           UIButton customBackButton = new UIButton(UIButtonType.System);

           customBackButton.SetTitle("Back", UIControlState.Normal);

           customBackButton.Size = new SizeF(30, 30);

           // Add button to the navigation bar

           this.NavigationItem.LeftBarButtonItem = new UIBarButtonItem(customBackButton);

       }

   }

   public class CustomNavigationController : UIViewController

   {

       // Add this method to your CustomNavigationController class

       public override void ViewDidLoad()

       {

           base.ViewDidLoad();

           // Create the button

           UIButton customBackButton = new UIButton(UIButtonType.System);

           customBackButton.SetTitle("Back", UIControlState.Normal);

           customBackButton.Size = new SizeF(30, 30);

           // Add button to the navigation bar

           this.NavigationItem.LeftBarButtonItem = new UIBarButtonItem(customBackButton);

           // Add the following code to set the click event of the button

           customBackButton.Clicked += (sender, e) =>

           {

               // Perform any actions here when the button is clicked

           };

       }

   }