public async Task DrinkSelectedAsync(DrinkRecipeViewModel drinkRecipeViewModel)
{
var selection = new List <string>()
{
"Edit", "Delete", "Make drink"
};
var result = await _userInteraction.DisplayActionSheetAsync($"{drinkRecipeViewModel.Name} selected!",
"Cancel", null, selection.ToArray());
if (result == null)
{
return;
}
if (result.Equals("Edit"))
{
var parmeter = new TypedParameter(typeof(DrinkRecipeViewModel), drinkRecipeViewModel);
await _navigationService.PushAsync <EditDrinkRecipePageViewModel>(parmeter);
}
else if (result.Equals("Delete"))
{
await _drinkRecipeRepository.DeleteAsync(drinkRecipeViewModel.DrinkRecipe);
Drinks.Remove(drinkRecipeViewModel);
}
else if (result.Equals("Make drink"))
{
if (!_bluetoothService.IsConnected())
{
await _userInteraction
.DisplayAlertAsync("Info", "Cannot send data to the cocktail machine. \n" +
"You are not connected with the bluetooth module of the cocktail machine. \n" +
"Navigate back to the welcomepage and connect with the device!", "Ok");
return;
}
await TransmitAsync(drinkRecipeViewModel);
}
}
public ShowIngredientsPageViewModel(
IIngredientsRepository ingredientsRepository,
INavigationService navigationService,
IUserInteraction userInteraction)
: base(navigationService, ingredientsRepository)
{
this.WhenAnyObservable(vm => vm.Ingredients.ItemChanged)
.ObserveOn(RxApp.MainThreadScheduler)
.Where(arg => arg.PropertyName == nameof(DrinkIngredientViewModel.TickSelected))
.Select(arg => (DrinkIngredientViewModel)arg.Sender)
.Do(ingredient => SelectedDrinkIngredient = ingredient)
.Subscribe(async ingredientViewModel =>
{
var selections = new List <string>()
{
"Edit", "Delete"
};
var result = await userInteraction.DisplayActionSheetAsync(
$"{ingredientViewModel.Name} selected!",
"Cancel",
null,
selections.ToArray());
if (result == "Edit")
{
var navigationParameter = new TypedParameter(typeof(DrinkIngredientViewModel), ingredientViewModel);
await navigationService.PushAsync <EditIngredientPageViewModel>(navigationParameter);
}
else if (result == "Delete")
{
await ingredientsRepository.DeleteAsync(ingredientViewModel.Ingredient);
await ActivateAsync();
}
else
{
ExceptionFactory.Get <NotImplementedException>("That selection is not jet implemented!");
}
});
}
public async Task <byte[]?> GetPhotoAsync()
{
var galleryOrCamera = await _userInteraction.DisplayActionSheetAsync("How to pick an image",
"cancel", null, "gallery", "camera", "delete image");
MediaFile file = null;
switch (galleryOrCamera)
{
case "gallery":
file = await CrossMedia.Current.PickPhotoAsync();
break;
case "camera":
file = await CrossMedia.Current.TakePhotoAsync(new StoreCameraMediaOptions());
break;
case "delete image":
return(new byte[0]);
default:
return(null);
}
if (file == null)
{
return(null);
}
using var stream = file.GetStream();
var result = new byte[stream.Length];
stream.Read(result, 0, (int)stream.Length);
file.Dispose();
return(result);
}