private View createBottomPanel ()
{
symbolPicker = new Picker {
Title = "Symbol",
HorizontalOptions = LayoutOptions.StartAndExpand
};
symbolPicker.SelectedIndexChanged += (object sender, EventArgs e) => {
if (symbolPicker.SelectedIndex > -1) {
currentSymbol = symbols[symbolPicker.SelectedIndex];
tradingAPI.SendSubscribeForSpotsRequest (currentTradingAccount.AccountId, currentSymbol.SymbolName);
refreshPlotView();
}
};
Picker volumePicker = new Picker {
Title = "Volume",
HorizontalOptions = LayoutOptions.StartAndExpand
};
foreach (string volumeLabel in nameToVolume.Keys) {
volumePicker.Items.Add (volumeLabel);
}
volumePicker.SelectedIndex = 0;
buyButton.HorizontalOptions = LayoutOptions.End;
buyButton.Clicked += (object sender, EventArgs e) => tradingAPI.SendMarketOrderRequest(currentTradingAccount.AccountId, currentSymbol.SymbolName, ProtoTradeSide.BUY, nameToVolume[volumePicker.Items[volumePicker.SelectedIndex]]);
sellButton.HorizontalOptions = LayoutOptions.End;
sellButton.Clicked += (object sender, EventArgs e) => tradingAPI.SendMarketOrderRequest(currentTradingAccount.AccountId, currentSymbol.SymbolName, ProtoTradeSide.SELL, nameToVolume[volumePicker.Items[volumePicker.SelectedIndex]]);
StackLayout panel = new StackLayout {
Spacing = 5,
Orientation = StackOrientation.Horizontal,
HorizontalOptions = LayoutOptions.FillAndExpand,
Children = {
this.symbolPicker,
volumePicker,
buyButton,
sellButton,
}
};
return panel;
}
private void fillSymbols ()
{
string oldSymbol = null;
if (symbolPicker.Items.Count > 0) {
oldSymbol = symbolPicker.Items [symbolPicker.SelectedIndex];
symbolPicker.Items.Clear ();
}
symbols = accountsAPI.getSymbols (currentTradingAccount.AccountId);
int selectedIndex = 0;
foreach (SymbolJson symbol in symbols) {
symbolPicker.Items.Add (symbol.SymbolName);
if (symbol.SymbolName.Equals(oldSymbol)) {
selectedIndex = symbolPicker.Items.Count - 1;
}
}
symbolPicker.SelectedIndex = selectedIndex;
currentSymbol = symbols[symbolPicker.SelectedIndex];
}