/// <summary>
/// Eine Page auf den Stack pushen
/// </summary>
/// <param name="nextPage">die Page</param>
/// <returns>Ergebnis</returns>
public async Task <object> PushPage(object nextPage)
{
if (MasterDetailPage != null)
{
MasterDetailPage.IsPresented = false;
}
var vm = (nextPage as IView).GetViewModel();
var page = nextPage as Page;
var navPage = NavPage;
await navPage.PushAsync(page, true);
var handler = new PopHandler(navPage, page);
_popHandlers.Add(handler);
var task = handler.WaitTillItPops();
await task;
if (!handler.HasBeenCanceled)
{
return(vm.ViewResult);
}
return(null);
}
private async Task SubmitReview()
{
if (!ValidateEmpty())
{
await Application.Current.MainPage.DisplayAlert("Error", "Please fill out the required fields (Review Text, Rating)", "OK");
return;
}
bool v = await ValidateReviewExists();
if (!v)
{
await Application.Current.MainPage.DisplayAlert("Error", "You can't review the same album more than once!", "OK");
}
else
{
ReviewUpsertRequest request = new ReviewUpsertRequest()
{
AlbumId = ThisAlbumId,
Rating = int.Parse(Rating),
ReviewText = ReviewText,
UserId = APIService.loggedProfile.UserId
};
SetFavProperties();
request.FavouriteSongs = FavTracks;
request.LeastFavouriteSongs = LeastFavTracks;
var inserted = await _reviewService.Insert <Review>(request);
await _postSerivce.Insert <Post>(new PostUpsertRequest()
{
AdminName = APIService.loggedProfile.Username,
ArtistRelatedId = LoadedAlbum.ArtistId,
IsGlobal = false,
Opphoto = APIService.loggedProfile.UserPhoto,
PostDateTime = DateTime.Now,
PostPhoto = LoadedAlbum.AlbumPhoto,
PostText = ReviewText + "\n \n " + "Favorite tracks: " + FavTracks + "\n \n " + "Least favorite tracks: " + LeastFavTracks + "\n \n" +
"Rating: " + Rating,
PostTitle = "Album Review: " +
LoadedAlbum.AlbumName,
ReviewRelatedId = inserted.ReviewId,
UserRelatedId = APIService.loggedProfile.UserId
});
await GlobalMethods.GenerateRating(ThisAlbumId);
await Application.Current.MainPage.DisplayAlert("Success", "Review successfully added! You will now be redirected to the album page.", "OK");
PopHandler?.Invoke(this, null);
}
}
public void StaticDelegate()
{
DelegateFactoryObject fob = new DelegateFactoryObject();
fob.DelegateType = typeof(PopHandler);
fob.TargetType = typeof(OneThirstyDude);
fob.MethodName = "StaticHandlePop";
fob.IsSingleton = false;
fob.AfterPropertiesSet();
PopHandler popper = (PopHandler)fob.GetObject();
Assert.IsNotNull(popper);
Assert.AreEqual(fob.MethodName, popper.Method.Name);
}
public void InstancePrototypeDelegate()
{
DelegateFactoryObject fob = new DelegateFactoryObject();
fob.IsSingleton = false;
fob.DelegateType = typeof(PopHandler);
OneThirstyDude dude = new OneThirstyDude();
fob.TargetObject = dude;
fob.MethodName = "HandlePop";
fob.IsSingleton = false;
fob.AfterPropertiesSet();
PopHandler one = (PopHandler)fob.GetObject();
PopHandler two = (PopHandler)fob.GetObject();
Assert.IsFalse(ReferenceEquals(one, two));
}
public void InstanceSingletonDelegate()
{
DelegateFactoryObject fob = new DelegateFactoryObject();
fob.DelegateType = typeof(PopHandler);
OneThirstyDude dude = new OneThirstyDude();
fob.TargetObject = dude;
fob.MethodName = "HandlePop";
fob.AfterPropertiesSet();
PopHandler popper = (PopHandler)fob.GetObject();
Assert.IsNotNull(popper);
Assert.AreEqual(fob.MethodName, popper.Method.Name);
string soda = "The Drink Of Champions";
popper(this, soda);
Assert.AreEqual(soda, dude.Soda);
PopHandler other = (PopHandler)fob.GetObject();
Assert.IsTrue(ReferenceEquals(popper, other));
}
