protected override Android.Graphics.Bitmap RunInBackground(params Profile[] @params)
{
String imageUrl = @params[0].imageUri;
String userId = @params[0].ID;
Bitmap image = null;
bool AvatarIsDefault = @params[0].AvatarIsDefault;
if (imageUrl == null)
{
return(null);
}
try
{
byte[] data = OperationWithBitmap.Retrieve(context, userId);
if (data == null)
{
image = OperationWithBitmap.GetFromUrl(imageUrl);
var bitmapData = OperationWithBitmap.ConvertToByteArray(image);
OperationWithBitmap.Cache(context, bitmapData, userId);
}
else
{
image = OperationWithBitmap.ConvertFromByteArray(data);
}
}
catch (Exception e) { Console.Out.WriteLine(e.Message); }
return(image);
}
protected override void OnPostExecute(Task <Bitmap> result)
{
byte[] bitmapData = OperationWithBitmap.ConvertToByteArray(result.Result);
db.UpdateAvatarUrl(New: url, at: UserId);
OperationWithBitmap.Cache(Application.Context, bitmapData, UserId);
base.OnPostExecute(result);
}
public static async Task <String> UploadImage(Bitmap image)
{
string boundary = "----------------------------" + DateTime.Now.Ticks.ToString("x");
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(await GetUploadUrl());
request.ContentType = "multipart/form-data; boundary=" +
boundary;
request.Method = "POST";
request.KeepAlive = true;
request.Headers.Add("Access-Token", CurrentAccessToken);
Stream memStream = new System.IO.MemoryStream();
var boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" +
boundary + "\r\n");
var endBoundaryBytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" +
boundary + "--");
string formdataTemplate = "\r\n--" + boundary +
"\r\nContent-Disposition: form-data; name=\"{0}\";\r\n\r\n{1}";
string headerTemplate =
"Content-Disposition: form-data; name=\"{0}\"; filename=\"{1}\"\r\n" +
"Content-Type: application/octet-stream\r\n\r\n";
byte[] file = OperationWithBitmap.ConvertToByteArray(image);
memStream.Write(boundarybytes, 0, boundarybytes.Length);
var header = string.Format(headerTemplate, "uplTheFile", file);
var headerbytes = System.Text.Encoding.UTF8.GetBytes(header);
memStream.Write(headerbytes, 0, headerbytes.Length);
memStream.Write(file, 0, file.Length);
memStream.Write(endBoundaryBytes, 0, endBoundaryBytes.Length);
request.ContentLength = memStream.Length;
using (Stream requestStream = request.GetRequestStream())
{
memStream.Position = 0;
byte[] tempBuffer = new byte[memStream.Length];
memStream.Read(tempBuffer, 0, tempBuffer.Length);
memStream.Close();
requestStream.Write(tempBuffer, 0, tempBuffer.Length);
}
JsonValue jsonDoc;
using (var response = request.GetResponse())
{
using (Stream stream = response.GetResponseStream())
{
jsonDoc = await Task.Run(() => JsonValue.Load(stream));
}
}
return(jsonDoc["imageUrl"]);
}
protected override Java.Lang.Void RunInBackground(params object[] @params)
{
if (@params[0].GetType() == typeof(HistoryListItem))
{
HistoryListItem historyItem = @params[0] as HistoryListItem;
UsersDatabase db = new UsersDatabase();
UserListItem user = db.GetUserByID(historyItem.fromUserID);
try
{
byte[] data = OperationWithBitmap.Retrieve(context, user.ID);
if (data == null)
{
Bitmap curImage = OperationWithBitmap.GetFromUrl(user.url);
//user.AvatarIsDefault = OperationWithBitmap.isDefault(curImage);
//if (!user.AvatarIsDefault)
//{
historyItem.image = curImage;
//}
var bitmapData = OperationWithBitmap.ConvertToByteArray(historyItem.image);
OperationWithBitmap.Cache(context, bitmapData, historyItem.ID);
}
else
{
//if (!user.AvatarIsDefault)
historyItem.image = OperationWithBitmap.ConvertFromByteArray(data);
}
}
catch (Exception e) { Console.Out.WriteLine(e.Message); }
}
else if (@params[0].GetType() == typeof(UserListItem))
{
UserListItem user = @params[0] as UserListItem;
bool AvatarIsDefault = user.AvatarIsDefault;
try
{
byte[] data = OperationWithBitmap.Retrieve(context, user.ID);
if (data == null)
{
Bitmap curImage = OperationWithBitmap.GetFromUrl(user.url);
//user.AvatarIsDefault = OperationWithBitmap.isDefault(curImage);
//if (!user.AvatarIsDefault)
//{
user.image = curImage;
// UsersDatabase db = new UsersDatabase();
// db.UpdateAvatarState(user);
//}
var bitmapData = OperationWithBitmap.ConvertToByteArray(user.image);
OperationWithBitmap.Cache(context, bitmapData, user.ID);
}
else
{
//if (!user.AvatarIsDefault)
user.image = OperationWithBitmap.ConvertFromByteArray(data);
}
}
catch (Exception e) { Console.Out.WriteLine(e.Message); }
}
else
{
throw new Exception("Wrong ItemList type.");
}
return(null);
}
