Xamarin Prism 模型到 ViewModel Fody

Question

如何使用 Fody 从模型拦截到 ViewModel？

我尝试将其放入我的 ViewModel 但没有任何反应，我是不是遗漏了什么？ 我正在使用 Xamarin Forms，Prism 型号

   public class Question : INotifyPropertyChanged
    {
        public bool IsValid { get; set; }

        public event PropertyChangedEventHandler PropertyChanged;

        public virtual void OnPropertyChanged(string propertyName)
        {
            Debug.WriteLine("This Works Here :) ");
            var propertyChanged = PropertyChanged;
            if (propertyChanged != null)
            {
                propertyChanged(this, new PropertyChangedEventArgs(propertyName));
            }
        }
    }

ViewModel

public class MainPageViewModel : INavigationAware, INotifyPropertyChanged{
        public virtual void OnPropertyChanged(string propertyName)
        {
            Debug.WriteLine("It Does not reach here :( ");
        }

        public static void Intercept(object target, Action onPropertyChangedAction, string propertyName)
        {
            Debug.WriteLine("It Does not reach here too :( ");
            onPropertyChangedAction();
        }
}

我需要使用 PropertyChangedNotificationInterceptor 吗？我如何在我的 View-Model 中实现它，任何建议都很棒

[更新]

Sample of Repo here

Answer 1

在 fody 属性中，更改的调用就这么简单：

public string Text{ get; set; }
public void OnTextChanged()
{
}

Xamarin Prism 模型到 ViewModel Fody

Xamarin Prism Model to ViewModel Fody

c#

prism

mvvm

fody

xamarin.forms