У меня проблема.
В моем приложении для Android я использую: Android.Support.V4.View.ViewPager для переключения между сводкой и кошельком.Сводная страница заполнена 3-мя TextViews, а кошелек создан с 1 GridViewОбе страницы заполняются данными из HTTPS-вызова, откуда ответ будет проанализирован в Список.Теперь я хочу обновлять обе страницы каждую секунду.Итак, я попробовал это:
public void LoadOrderPage()
{
Android.Support.V4.View.ViewPager SummaryWalletSwitcher = FindViewById<Android.Support.V4.View.ViewPager>(Resource.Id.SummaryWalletSwitcher);
List<View> viewlist = new List<View>();
viewlist.Add(LayoutInflater.Inflate(Resource.Layout.AgentSummary, null, false));
viewlist.Add(LayoutInflater.Inflate(Resource.Layout.AgentWallet, null, false));
SummaryWalletAdapter ViewSwitchAdapter = new SummaryWalletAdapter(viewlist);
SummaryWalletSwitcher.Adapter = ViewSwitchAdapter;
Timer AgentInfo_Timer = new Timer();
AgentInfo_Timer.Interval = 1000;
AgentInfo_Timer.Elapsed += LoadAgentInfo;
AgentInfo_Timer.Enabled = true;
}
public void LoadAgentInfo(object sender, ElapsedEventArgs e)
{
TextView TextPortfolioValue = FindViewById<TextView>(Resource.Id.txtPortfolioValue);
TextView TextValueUSDT = FindViewById<TextView>(Resource.Id.txtValueUSDT);
TextView TextTotalValue = FindViewById<TextView>(Resource.Id.txtTotalValue);
GridView GridviewWallet = FindViewById<GridView>(Resource.Id.GridviewWallet);
if (FirstWalletRun == true)
{
List<wallet> EmptyWalletList = new List<wallet>();
WalletListAdapter = new WalletListAdapter(this, EmptyWalletList);
GridviewWallet.Adapter = WalletListAdapter;
FirstWalletRun = false;
}
PortfolioValue = 0;
ValueUSDT = 0;
TotalValue = 0;
string response = "";
AgentId = getSelectedAgentId();
if (AgentId == 0)
{
AgentId = 1;
}
try
{
WebClient client = new WebClient();
var reqparm = new System.Collections.Specialized.NameValueCollection();
reqparm.Add("agentid", AgentId.ToString());
reqparm.Add("devicetoken", DeviceToken);
byte[] responsebytes = client.UploadValues("https://www.test.nl/getagentwallet.php", "POST", reqparm);
IgnoreBadCertificates();
response = Encoding.UTF8.GetString(responsebytes);
response = response.Replace("\n", "").Replace("\t", "");
}
catch (Exception ex)
{
string exFullName = (ex.GetType().FullName);
string ExceptionString = (ex.GetBaseException().ToString());
TextPortfolioValue.Text = "Unknown";
TextValueUSDT.Text = "Unknown";
TextTotalValue.Text = "Unknown";
}
if (response != "No updates")
{
//Parse json content
var jObject = JObject.Parse(response);
//Create Array from everything inside Node:"Coins"
var walletPropery = jObject["Wallet"] as JArray;
//Create List to save Coin Data
walletList = new List<wallet>();
//Find every value in Array: coinPropery
foreach (var property in walletPropery)
{
//Convert every value in Array to string
var propertyList = JsonConvert.DeserializeObject<List<wallet>>(property.ToString());
//Add all strings to List
walletList.AddRange(propertyList);
}
//Get all the values from Name, and convert it to an Array
string[][] NamesArray = walletList.OrderBy(i => i.AgentId)
.Select(i => new string[] { i.AgentId.ToString(), i.Coin, i.Quantity.ToString(), i.AvgPrice.ToString(), i.Value.ToString() })
.Distinct()
.ToArray();
foreach (string[] str in NamesArray)
{
if (str[1] != "USDT")
{
PortfolioValue += decimal.Parse(str[4]);
}
else
{
ValueUSDT += decimal.Parse(str[4]);
}
}
TotalValue = PortfolioValue + ValueUSDT;
TextPortfolioValue.Text = Math.Round(PortfolioValue, 8).ToString();
TextValueUSDT.Text = Math.Round(ValueUSDT, 8).ToString();
TextTotalValue.Text = Math.Round(TotalValue, 8).ToString();
SortedWalletList = walletList.OrderBy(o => o.Coin).ToList();
if (WalletListAdapter == null)
{
//Fill the DataSource of the ListView with the Array of Names
WalletListAdapter = new WalletListAdapter(this, SortedWalletList);
GridviewWallet.Adapter = WalletListAdapter;
}
else
{
WalletListAdapter.refresh(SortedWalletList);
AgentInfoNeedsUpdate = true;
}
}
else
{
AgentInfoNeedsUpdate = false;
}
}
И в своем WalletListAdapter я создал функцию обновления:
public void refresh(List<wallet> mItems)
{
this.mItems = mItems;
NotifyDataSetChanged();
}
Но GridviewWallet никогда не заполняется или не отображается.Что я делаю неправильно?
РЕДАКТИРОВАТЬ:
Возможно, что-то не так в WalletListAdapter, поэтому вот код класса:
public class WalletListAdapter : BaseAdapter<wallet>
{
public List<wallet> mItems;
private Context mContext;
public WalletListAdapter(Context context, List<wallet> items)
{
mItems = items;
mContext = context;
}
public override int Count
{
get { return mItems.Count; }
}
public void refresh(List<wallet> mItems)
{
this.mItems = mItems;
NotifyDataSetChanged();
}
public override long GetItemId(int position)
{
return position;
}
public override wallet this[int position]
{
get { return mItems[position]; }
}
public override View GetView(int position, View convertView, ViewGroup parent)
{
View row = convertView;
if (row == null)
{
row = LayoutInflater.From(mContext).Inflate(Resource.Layout.walletlist_row, null, false);
var txtWalletCoin = row.FindViewById<TextView>(Resource.Id.txtWalletCoin);
var txtWalletQuantity = row.FindViewById<TextView>(Resource.Id.txtWalletQuantity);
var txtAvgPrice = row.FindViewById<TextView>(Resource.Id.txtWalletAvgPrice);
var txtWalletValue = row.FindViewById<TextView>(Resource.Id.txtWalletValue);
var txtProfitUSDT = row.FindViewById<TextView>(Resource.Id.txtWalletProfitUSDT);
var txtProfitPerc = row.FindViewById<TextView>(Resource.Id.txtWalletProfitPerc);
row.Tag = new WalletViewHolder()
{
txtWalletCoin = txtWalletCoin,
txtWalletQuantity = txtWalletQuantity,
txtAvgPrice = txtAvgPrice,
txtWalletValue = txtWalletValue,
txtProfitUSDT = txtProfitUSDT,
txtProfitPerc = txtProfitPerc
};
}
var holder = (WalletViewHolder)row.Tag;
holder.txtWalletCoin.Text = mItems[position].Coin;
holder.txtWalletQuantity.Text = Math.Round(mItems[position].Quantity, 2).ToString();
holder.txtAvgPrice.Text = Math.Round(mItems[position].AvgPrice, 2).ToString();
holder.txtWalletValue.Text = Math.Round(mItems[position].Value, 2).ToString();
if (mItems[position].Coin != "USDT")
{
holder.txtProfitUSDT.Text = Math.Round(mItems[position].ProfitUSDT, 2).ToString();
holder.txtProfitPerc.Text = Math.Round(mItems[position].ProfitPerc, 1).ToString();
}
else
{
holder.txtProfitUSDT.Text = Math.Round(0.00, 2).ToString();
holder.txtProfitPerc.Text = Math.Round(0.00, 1).ToString();
}
return row;
}
}