public App()
{
if (db.GetCurrency(Utils.currencyCodes[0]) == null) // db not initialized
{
// initialize db with default rate (-1) // changed to 1. -1 was giving problems.
foreach (string cod in Utils.currencyCodes)
{
db.UpdateCurrency(new Currency()
{
code = cod, rate = 1.0
});
}
db.SetGlobal("favouriteCurrency", "EUR");
}
foreach (WalletAmount wa in db.GetWalletAmounts())
{
wallet.AddAmount(wa.code, wa.amount);
}
// The root page of your application
var content = new InputValuePage(db, wallet);
MainPage = new NavigationPage(content);
content.UpdateCurrencies();
}
public BalancePage(Wallet w, DatabaseOps d)
{
this.Title = "Balance";
wallet = w;
db = d;
screenWidth = DeviceInfo.Hardware.ScreenWidth;
screenHeight = ConvertPixelsToDp(DeviceInfo.Hardware.ScreenHeight);
Debug.WriteLine("Height: " + screenHeight + " # Width: " + screenWidth);
graphMaxHeight = screenHeight * 0.6;
selectedCurrency = db.GetCurrency(db.GetGlobal("favouriteCurrency"));
InitializeMainGrid();
InitializeGraph();
InitializeTotals();
var scrollview = new ScrollView
{
Content = new StackLayout
{
Children = { mainGrid }
}
};
Content = new StackLayout
{
Children = { scrollview }
};
}
public static double ConvertAmount(DatabaseOps db, double amount, string codeFrom, string codeTo)
{
double rate = db.GetCurrency(codeTo).rate / db.GetCurrency(codeFrom).rate;
return(amount * rate);
}
public static Currency getFavouriteCurrency(DatabaseOps db)
{
return(db.GetCurrency(db.GetGlobal("favouriteCurrency")));
}
private void updateCurrencyRateLabelText()
{
currencyRateLabel.Text = string.Format("1 {0} = {1} {2}", favouriteCurrency.code,
Math.Round(db.GetCurrency(selectedCurrency.code).getRate(favouriteCurrency), 5),
selectedCurrency.code);
}