public async Task <IEnumerable <IQPItem> > GetItemsAsync(bool forceRefresh = false)
{
Debug.WriteLine("GetItemsAsync enter");
if (forceRefresh)
{
GetDataResult = DownloadResult.Undefined;
Debug.WriteLine("GetItemsAsync started, DownloadResult:" + GetDataResult);
//Check network status
if (NetworkServices.IsConnectedToInternet())
{
try
{
//1. Download data
Debug.WriteLine("GetItemsAsync download will start now, DownloadResult:" + GetDataResult);
Uri geturi = new Uri(Settings.IQPURL); //replace your xml url
HttpClient client = new HttpClient();
HttpResponseMessage response = await client.GetAsync(geturi);
Debug.WriteLine("GetItemsAsync download completead, StatusCode:" + response.StatusCode);
//2. If data ok
if (response.StatusCode == System.Net.HttpStatusCode.OK)
{
//2.2. Read string
string responseSt = await response.Content.ReadAsStringAsync();
//await ParentPage.DisplayAlert("Get IQP Data", responseSt, "Ok");
Debug.WriteLine("GetItemsAsync DOWNLOADDATA:" + responseSt);
try
{
//3.1 Set JSON parse options
JsonSerializerSettings JSONSettings = new JsonSerializerSettings();
JSONSettings.Culture = new CultureInfo("ru-RU");
JSONSettings.Culture.NumberFormat.NumberDecimalSeparator = ".";
JSONSettings.NullValueHandling = NullValueHandling.Ignore;
//3.2 Convert string into IQP Object
List <IQPItem> IQP_items_list = JsonConvert.DeserializeObject <List <IQPItem> >(responseSt, JSONSettings);
GetDataResult = DownloadResult.Success;
Debug.WriteLine("GetItemsAsync Converted to JSON, Count:" + IQP_items_list.Count());
//Clear current items
await ClearItemsAsync();
//Add test if needed
if (_UseTestItems)
{
AddTestItems();
}
//Add downloaded
foreach (var _item in IQP_items_list)
{
await AddItemAsync(_item);
}
Debug.WriteLine("GetItemsAsync Data added into dataStoreIQPitems, Count:" + dataStoreIQPitems.Count());
Debug.WriteLine("GetItemsAsync DownloadResult:" + GetDataResult);
}
catch (Exception ex)
{
Debug.WriteLine("Exception in GetItemsAsync JSON parsing");
Debug.WriteLine(ex);
GetDataResult = DownloadResult.ParseError;
}
}
else
{
GetDataResult = DownloadResult.DownloadError;
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception in GetItemsAsync download");
Debug.WriteLine(ex);
GetDataResult = DownloadResult.DownloadError;
}
}
else
{
GetDataResult = DownloadResult.NoNetwork;
}
}
return(await Task.FromResult(dataStoreIQPitems));
}
public static async Task <Tuple <T, DownloadResult> > GetJSON <T>(string stURL)
{
Debug.WriteLine("GetJSON [" + typeof(T) + "] enter");
//Return object
T objResponse = default(T);
DownloadResult retDataResult = DownloadResult.Undefined;
// Check network status
if (NetworkServices.IsConnectedToInternet())
{
try
{
//1. Download data
Uri geturi = new Uri(stURL); //replace your xml url
HttpClient client = new HttpClient();
HttpResponseMessage response = await client.GetAsync(geturi);
//2. If data ok
if (response.StatusCode == HttpStatusCode.OK)
{
//2.2. Read string
string responseSt = await response.Content.ReadAsStringAsync();
Debug.WriteLine("GetJSON [" + typeof(T) + "] DOWNLOAD DATA:" + responseSt);
try
{
//3.1 Set JSON parse options
JsonSerializerSettings JSONSettings = new JsonSerializerSettings();
JSONSettings.Culture = new CultureInfo("ru-RU");
JSONSettings.Culture.NumberFormat.NumberDecimalSeparator = ".";
JSONSettings.NullValueHandling = NullValueHandling.Ignore;
//3.2. JSON convert
objResponse = JsonConvert.DeserializeObject <T>(responseSt, JSONSettings);
Debug.WriteLine("GetJSON [" + typeof(T) + "] was converted to JSON:" + objResponse.ToString());
retDataResult = DownloadResult.Success;
}
catch (Exception ex)
{
Debug.WriteLine("Exception in GetJSON [" + typeof(T) + "] JSON parsing");
Debug.WriteLine(ex);
retDataResult = DownloadResult.ParseError;
}
}
else
{
retDataResult = DownloadResult.DownloadError;
}
}
catch (Exception ex)
{
Debug.WriteLine("Exception in GetJSON [" + typeof(T) + "] download");
Debug.WriteLine(ex);
retDataResult = DownloadResult.DownloadError;
}
}
else
{
Debug.WriteLine("GetJSON [" + typeof(T) + "]- no network");
retDataResult = DownloadResult.NoNetwork;
}
Debug.WriteLine("GetJSON [" + typeof(T) + "] return status:" + retDataResult);
return(new Tuple <T, DownloadResult>(objResponse, retDataResult));
}
