How to override the functionality of Back button when using Navigation Controller in Xamarin.ios?

Question

I'm working on Xamarin.iOS.When i move from one view controller to another a navigation bar is added to the view on which i just moved and a back button appears. On clicking the back button it returns me to the parent view. But i want some different functionality rather than returning to the parent view. Can anyone help me out!

Answer 1

This can be accomplished by creating a custom button, and then setting that button as the back button for the view controller, such as:

    public override void ViewDidLoad()
    {
        base.ViewDidLoad();
        // Perform any additional setup after loading the view, typically from a nib.

        UIBarButtonItem backButton = new UIBarButtonItem("title", UIBarButtonItemStyle.Bordered, handleBack);

        this.NavigationItem.LeftBarButtonItem = backButton;
    }


    public void handleBack(object sender, EventArgs e)
    {
        Console.WriteLine("back!");
    }

I hope this helps!