public void PopupNavigateTo(string pageKey, params object[] pageParameters)
{
lock (_pagesByKey)
{
if (_pagesByKey.ContainsKey(pageKey))
{
var type = _pagesByKey[pageKey];
ConstructorInfo constructor;
object[] parameters;
if (pageParameters == null)
{
constructor = type.GetTypeInfo()
.DeclaredConstructors
.FirstOrDefault(c => !c.GetParameters().Any());
parameters = new object[] { };
}
else
{
var constructors = type.GetTypeInfo().DeclaredConstructors;
constructor = constructors.FirstOrDefault(
c =>
{
var p = c.GetParameters();
return(p.Count() == pageParameters.Count() &&
p.ToList().TrueForAll(t => pageParameters.Any(pp => t.ParameterType == pp.GetType())));
});
}
if (constructor == null)
{
throw new InvalidOperationException(
"No suitable constructor found for page " + pageKey);
}
var page = constructor.Invoke(pageParameters) as PopupPage;
PopupNavigation.PushAsync(page);
}
else
{
throw new ArgumentException(
string.Format(
"No such page: {0}. Did you forget to call NavigationService.Configure?",
pageKey),
"pageKey");
}
}
}
public async void PopupGoBack()
{
await PopupNavigation.PopAsync();
}
