/*
* Navigate<T> allows developers to navigate using a
* page key instead of the view type. This is accomplished by
* creating a custom Enum and setting up the PageKeys dict
* with the Key/Type pairs for your views. The dict is
* shared by all NavigationServices and is stored in
* the BootStrapper (or Application) of the app.
*
* Implementation example:
*
* // define your Enum
* public Enum Pages { MainPage, DetailPage }
*
* // setup the keys dict
* var keys = BootStrapper.PageKeys<Views>();
* keys.Add(Pages.MainPage, typeof(Views.MainPage));
* keys.Add(Pages.DetailPage, typeof(Views.DetailPage));
*
* // use Navigate<T>()
* NavigationService.Navigate(Pages.MainPage);
*/
// T must be the same custom Enum used with BootStrapper.PageKeys()
public bool Navigate <T>(T key, object parameter = null, NavigationTransitionInfo infoOverride = null)
where T : struct, IConvertible
{
var keys = BootStrapper.Current.PageKeys <T>();
if (!keys.ContainsKey(key))
{
throw new KeyNotFoundException(key.ToString());
}
var page = keys[key];
if (page.FullName.Equals(LastNavigationType) &&
parameter == LastNavigationParameter)
{
return(false);
}
return(FrameFacade.Navigate(page, parameter, infoOverride));
}
public bool Navigate(Type page, object parameter = null, NavigationTransitionInfo infoOverride = null)
{
if (page == null)
{
throw new ArgumentNullException(nameof(page));
}
if (page.FullName.Equals(LastNavigationType))
{
if (parameter == LastNavigationParameter)
{
return(false);
}
if (parameter != null && parameter.Equals(LastNavigationParameter))
{
return(false);
}
}
parameter = SerializePageParam(parameter);
return(FrameFacade.Navigate(page, parameter, infoOverride));
}