private async Task <CryptoCompareJSON> GetQuotes()
{
CryptoCompareJSON cryptoCompareJSON = null;
string fsyms = "";
if (cardViewDict.Keys.Count == 0)
{
return(cryptoCompareJSON);
}
foreach (string key in cardViewDict.Keys)
{
fsyms += key + ",";
}
fsyms = fsyms.Remove(fsyms.LastIndexOf(','));
string url = "https://min-api.cryptocompare.com/data/pricemultifull?fsyms=" + fsyms + "&tsyms=USD";
//string url = "https://min-api.cryptocompare.com/data/pricemultifull?fsyms=BTC,ETH,XRP,ZEC,LTC&tsyms=USD";
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(new Uri(url));
request.ContentType = "application/json";
request.Method = "GET";
using (WebResponse response = await request.GetResponseAsync())
{
using (Stream stream = response.GetResponseStream())
{
var serializer = new JsonSerializer();
StreamReader sr = new System.IO.StreamReader(stream);
using (var jst = new JsonTextReader(sr))
{
cryptoCompareJSON = await Task.Run(() => serializer.Deserialize <CryptoCompareJSON>(jst));
return(cryptoCompareJSON);
}
}
}
}
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
// Use this to return your custom view for this Fragment
var view = inflater.Inflate(Resource.Layout.quotepanelfragment, container, false);
cardViewGridLayout = view.FindViewById <GridLayout>(Resource.Id.gridCardLayout);
var activity = (MainActivity)Activity;
cardViewDict = new Dictionary <string, CardView>();
//GenerateCards();
GenerateCardsFromDatabase();
UpdateCoinBalances();
webQuoteTimer.Elapsed += async(sender, e) =>
{
CryptoCompareJSON crypotCompareJSON = await GetQuotes();
if (crypotCompareJSON == null)
{
return;
}
RAW raw = crypotCompareJSON.Raw;
System.Reflection.PropertyInfo[] propertyInfo = raw.GetType().GetProperties();
foreach (var propInfo in propertyInfo)
{
var value = propInfo.GetValue(raw, null);
SYMBOL sym = value as SYMBOL;
if (sym == null)
{
continue;
}
string symbol = sym.Usd.FROMSYMBOL;
double price = sym.Usd.PRICE;
DateTime lastUpdate = DateTimeOffset.FromUnixTimeSeconds(sym.Usd.LASTUPDATE).LocalDateTime;
double change = sym.Usd.CHANGEDAY;
double changePct = sym.Usd.CHANGEPCTDAY;
Activity.RunOnUiThread(() =>
{
UpdateCardView(symbol, price, change, changePct, lastUpdate);
activity.SetTotalValue(symbolValues.Sum(x => x.Value));
});
}
};
webQuoteTimer.Start();
return(view);
}
