The Context was not cast into Activity for latest Xamarin

Question

Hi All,

 

I have created a new simple Dot Net project with a separate UI and ViewModel project for Android. I have used a simple Xamarin.Android EditText control to rendered in Forms control. In some scenarios, I will handle the keyboard manually. So I have used the below codes to handle the keyboard. But the Context was not cast to Activity. The specified case was not found exception has occurred.

Window window = ((Activity)this.Context).Window;
        InputMethodManager mgr = (InputMethodManager)((Activity)this.Context).GetSystemService(Context.InputMethodService);

        if (window != null)
        {
            window.SetSoftInputMode(SoftInput.StateHidden);
            mgr.HideSoftInputFromWindow(this.WindowToken, 0);
        }

I have attached the simple project to this post. Please help me to use the keypad manually.

 

Thanks in advance.