public ItemDetailViewModel(Xamarin.Forms.INavigation navigation, ToDoItemModel item = null)
{
_navigation = navigation;
PomodoroChart = new BarChart()
{
Entries = new List <Entry>()
};
Title = item?.Title;
SelectedItem = item;
PopulateChart();
Xamarin.Forms.MessagingCenter.Subscribe <PomodoroViewModel, PomodoroItemModel>(this, Consts.AddNewToDoItemStr, (obj, newPomodoroItem) =>
{
Pomodoros.Add(newPomodoroItem);
NumberOfPomodoros++;
});
DoneButtonTouched = new Xamarin.Forms.Command(async() =>
{
var newItem = await DataStore.SetDoneTodo(SelectedItem.Id);
Xamarin.Forms.MessagingCenter.Send(this, Consts.DoneTodoItemStr, newItem);
await _navigation.PopAsync();
});
}
public KalendarViewModel(Xamarin.Forms.INavigation navigation, double dluh, double rocniUrok, int pocetLet, DateTime zacatek)
{
this.navigation = navigation;
CommandZpet = new RelayCommand(async parameter => await NavigateZpet(parameter));
List <KalendarItem> kalendar = new List <KalendarItem>();
int pocetMesicu = pocetLet * 12; // pocet mesicu splaceni
double mesicniSazba = rocniUrok / (12 * 100); // desetinne cislo
double v = 1 / (1 + mesicniSazba);
double splatka = (mesicniSazba * dluh) / (1 - Math.Pow(v, pocetMesicu));
for (int i = 0; i < pocetMesicu; i++)
{
double urok = mesicniSazba * dluh;
double umor = splatka - urok;
dluh -= umor;
zacatek = zacatek.AddMonths(1);
kalendar.Add(new KalendarItem(zacatek, splatka, urok, umor, dluh));
}
Kalendar = kalendar;
}
// navigation bychom meli dat do samostatne tridy a pouzit techniku DI
public MainViewModel(Xamarin.Forms.INavigation navigation)
{
Dluh = 1000000;
PocetLet = 20;
Urok = 2;
Datum = DateTime.Now;
CommandKalendar = new RelayCommand(async parameter => await NavigateKalendar(parameter));
this.navigation = navigation;
}
/// <summary>
/// Initializes a new instance of the <see cref="NavigationService"/> class.
/// </summary>
/// <param name="nav">The nav.</param>
public NavigationService(Xamarin.Forms.INavigation nav)
{
_navigation = nav;
}
/// <summary>
/// Initializes a new instance of the <see cref="NavigationService"/> class.
/// </summary>
public NavigationService()
{
_navigation = Xamarin.Forms.DependencyService.Get <Xamarin.Forms.INavigation>();
}
