public static async Task <Dictionary <string, int> > FillGroupsDictionary(bool rewrite, CancellationToken cts)
{
var networkChecker = new NetworkChecker(Instance);
string resultJson;
var resourceName = "groups.json";
var b = File.Exists(GetFileFullPath(resourceName));
if (rewrite && networkChecker.Check())
{
var client = new HttpClient();
resultJson = await HttpClientSL.GetResponseAsync(client, Instance.groupLink, cts);
File.WriteAllText(GetFileFullPath(resourceName), resultJson);
}
else
{
using (var stream = GetEmbeddedResourceStream(resourceName))
using (var reader = b ? new StreamReader(GetFileFullPath(resourceName)) : new StreamReader(stream))
{
resultJson = await reader.ReadToEndAsync();
}
}
var groups = JsonConvert.DeserializeObject <GroupRoot>(resultJson);
var dictionary = groups.Groups.ToDictionary(x => x.Name, x => x.Id);
return(dictionary);
}
private void TextViewUpdate_Click(object sender, EventArgs e)
{
if (networkChecker.Check())
{
progressBar.Visibility = ViewStates.Visible;
Task.Run(async() =>
{
MainApp.Instance.GroupsDictionary = new Nito.AsyncEx.AsyncLazy <Dictionary <string, int> >(async() =>
{
return(await MainApp.FillGroupsDictionary(true, new System.Threading.CancellationToken()));
});
var newGroupsDictionary = await MainApp.Instance.GroupsDictionary;
array = newGroupsDictionary.Select(x => x.Key).ToArray();
groupsDictionary = newGroupsDictionary;
RunOnUiThread(() =>
{
suggestAdapter = new ArrayAdapter(this, Android.Resource.Layout.SimpleDropDownItem1Line, array);
autoCompleteTextViewAuth.Adapter = null;
autoCompleteTextViewAuth.Adapter = suggestAdapter;
progressBar.Visibility = ViewStates.Invisible;
});
});
}
else
{
Toast.MakeText(this, GetString(Resource.String.no_connection_title), ToastLength.Short).Show();
}
}