private async void AddButton_Clicked(object sender, EventArgs e)
{
bool isEntryRight = true;
if (NameEntry.Text == null)
{
await DisplayAlert(Resource.Error, Resource.EnterTheNameOfConstellation, Resource.OK);
isEntryRight = false;
}
if (isEntryRight)
{
string uri = ImageEntry.Text ?? "";
Collection <Star> stars = new Collection <Star>();
for (int i = 0, count = NamesOfStars.Count; i < count - 1; i++)
{
if (NamesOfStars.ElementAt(i).Value != -1)
{
stars.Add(Stars.ElementAt(i));
}
}
if (Constellation != null)
{
bool result = await DisplayAlert(Resource.ConfirmAction, Resource.AreYouSureYouWantToReplaceTheData, Resource.Yes, Resource.No);
if (!result)
{
return;
}
await DisplayAlert(Resource.Notification, Resource.TheDataWasSuccessfullyReplaced, Resource.OK);
Constellation.Name = NameEntry.Text;
Constellation.ImageOfConstellation = uri;
Constellation.Stars.Clear();
foreach (var s in stars)
{
Constellation.Stars.Add(s);
}
Constellation.DefinePosition();
}
else
{
Data.Constellations.Add(new Constellation(NameEntry.Text, uri, stars));
await DisplayAlert(Resource.Notification, Resource.DataWasSuccessfullyAdded, Resource.OK);
}
await Navigation.PopModalAsync();
}
}
public InformationAboutTheConstellationPage(Constellation constellation)
{
InitializeComponent();
this.BindingContext = constellation;
Constellation = constellation;
try
{
ImageOfConstellation.Source = new UriImageSource {
Uri = new Uri(constellation.ImageOfConstellation)
};
}
catch (Exception)
{
ImageOfConstellation.Source = null;
ImageOfConstellation.HeightRequest = 0;
}
}
public AddingNewConstellationPage(Constellation constellation)
{
InitializeComponent();
Constellation = constellation;
Stars = new Collection <Star>();
NamesOfStars = new Dictionary <string, int>();
for (int i = 0, count = Data.Stars.Count; i < count; i++)
{
if (Data.Stars[i].Constellation == null)
{
Stars.Add(Data.Stars[i]);
}
}
for (int i = 0, count = Constellation.Stars.Count; i < count; i++)
{
Stars.Add(Constellation.Stars[i]);
}
for (int i = 0, count = Stars.Count; i < count; i++)
{
NamesOfStars.Add(Stars[i].Name, -1);
}
NameEntry.Text = Constellation.Name;
ImageEntry.Text = Constellation.ImageOfConstellation;
StarPicker picker = new StarPicker(NamesOfStars);
StackLayout stack = new StackLayout()
{
Orientation = StackOrientation.Horizontal
};
stack.Children.Add(picker);
StarsStack.Children.Add(stack);
picker.SelectedIndexChanged += StarPicker_SelectedIndexChanged;
for (int i = 0, count = Constellation.Stars.Count; i < count; i++)
{
picker = (StarPicker)((StackLayout)StarsStack.Children[i]).Children[0];
picker.SelectedItem = Constellation.Stars[i].Name;
}
AddButton.Text = Resource.Save;
}