public async Task Save(string filename, string contentType, MemoryStream stream)
{
var root = "";
//Get the root path in android device.
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.AbsolutePath;
}
else
{
root = System.Environment.GetFolderPath(System.Environment.SpecialFolder.MyDocuments);
}
var myDir = new Java.IO.File(root + "/Kişisel Takip");
var result = myDir.Mkdir();
//Directory.CreateDirectory(myDir.Path);
var file = new Java.IO.File(myDir, filename);
//if (file.Exists()) file.Delete();
var outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
}
public void put(string key, byte[] value)
{
var file = mCache.newFile(key);
FileOutputStream output = null;
try
{
output = new FileOutputStream(file);
output.Write(value);
}
catch (System.Exception ex)
{
VPNLog.d("ACache", ex.ToString());
}
finally
{
if (output != null)
{
try
{
output.Flush();
output.Dispose();
}
catch (IOException ex)
{
ex.PrintStackTrace();
}
}
mCache.put(file);
}
}
protected override string RunInBackground(params string[] @params)
{
string strongPath = Android.OS.Environment.ExternalStorageDirectory.Path;
string filePath = System.IO.Path.Combine(strongPath, "download.jpg");
int count;
try
{
URL url = new URL(@params[0]);
URLConnection connection = url.OpenConnection();
connection.Connect();
int LengthOfFile = connection.ContentLength;
InputStream input = new BufferedInputStream(url.OpenStream(), LengthOfFile);
OutputStream output = new FileOutputStream(filePath);
byte[] data = new byte[1024];
long total = 0;
while ((count = input.Read(data)) != -1)
{
total += count;
PublishProgress("" + (int)((total / 100) / LengthOfFile));
output.Write(data, 0, count);
}
output.Flush();
output.Close();
input.Close();
}
catch (Exception e)
{
}
return(null);
}
private void ExportDatabaseToSdCard()
{
Log.D(this, "Exporting database");
try {
var backup = new Java.IO.File(context.GetExternalFilesDir("").AbsolutePath, "ION_External.database");
var original = new Java.IO.File(database.path);
Log.D(this, "Backup: " + backup.AbsolutePath);
if (original.Exists())
{
var fis = new FileInputStream(original);
var fos = new FileOutputStream(backup);
Log.D(this, "Transfered: " + fos.Channel.TransferFrom(fis.Channel, 0, fis.Channel.Size()) + " bytes");
fis.Close();
fos.Flush();
fos.Close();
Log.D(this, "Successfully exported the database to the sd card.");
}
} catch (Exception e) {
Log.E(this, "Failed to export database to SD card", e);
}
}
private static string GetFileFromUrl(string fromUrl, string toFile)
{
try
{
URL url = new URL(fromUrl);
URLConnection connection = url.OpenConnection();
connection.Connect();
//int fileLength = connection.GetContentLength();
// download the file
InputStream input = new BufferedInputStream(url.OpenStream());
OutputStream output = new FileOutputStream(toFile);
var data = new byte[1024];
long total = 0;
int count;
while ((count = input.Read(data)) != -1)
{
total += count;
////PublishProgress((int)(total * 100 / fileLength));
output.Write(data, 0, count);
}
output.Flush();
output.Close();
input.Close();
}
catch (Exception e)
{
Log.Error("YourApp", e.Message);
}
return(toFile);
}
private static void copyAssets(Context context)
{
AssetManager assetManager = context.Assets;
String appFileDirectory = context.FilesDir.Path;
String executableFilePath = appFileDirectory + "/ffmpeg";
try
{
var fIn = assetManager.Open("ffmpeg");
Java.IO.File outFile = new Java.IO.File(executableFilePath);
OutputStream fOut = null;
fOut = new FileOutputStream(outFile);
byte[] buffer = new byte[1024];
int read;
while ((read = fIn.Read(buffer, 0, 1024)) > 0)
{
fOut.Write(buffer, 0, read);
}
fIn.Close();
fIn = null;
fOut.Flush();
fOut.Close();
fOut = null;
Java.IO.File execFile = new Java.IO.File(executableFilePath);
execFile.SetExecutable(true);
}
catch (Exception e)
{
//Log.e(TAG, "Failed to copy asset file: " + filename, e);
}
}
/// <exception cref="System.Exception"/>
private FilePath GetFileCommand(string clazz)
{
string classpath = Runtime.GetProperty("java.class.path");
FilePath fCommand = new FilePath(workSpace + FilePath.separator + "cache.sh");
fCommand.DeleteOnExit();
if (!fCommand.GetParentFile().Exists())
{
fCommand.GetParentFile().Mkdirs();
}
fCommand.CreateNewFile();
OutputStream os = new FileOutputStream(fCommand);
os.Write(Sharpen.Runtime.GetBytesForString("#!/bin/sh \n"));
if (clazz == null)
{
os.Write(Sharpen.Runtime.GetBytesForString(("ls ")));
}
else
{
os.Write(Sharpen.Runtime.GetBytesForString(("java -cp " + classpath + " " + clazz
)));
}
os.Flush();
os.Close();
FileUtil.Chmod(fCommand.GetAbsolutePath(), "700");
return(fCommand);
}
/// <summary>
/// Downloads the resource with the specified URI to a local file.
/// </summary>
public void DownloadFile(URL address, string fileName)
{
URLConnection connection = null;
InputStream inputStream = null;
OutputStream outputStream = new FileOutputStream(fileName);
try
{
connection = OpenConnection(address);
inputStream = connection.InputStream;
var buffer = new byte[BUFFER_SIZE];
int len;
while ((len = inputStream.Read(buffer, 0, BUFFER_SIZE)) > 0)
{
outputStream.Write(buffer, 0, len);
}
outputStream.Flush();
}
finally
{
if (inputStream != null)
{
inputStream.Close();
}
var httpConnection = connection as HttpURLConnection;
if (httpConnection != null)
{
httpConnection.Disconnect();
}
outputStream.Close();
}
}
private void SaveExcel(MemoryStream stream)
{
string exception = string.Empty;
string root = null;
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.ToString();
}
else
root = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
Java.IO.File myDir = new Java.IO.File(root + "/Syncfusion");
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, "report.xlsx");
if (file.Exists()) file.Delete();
try
{
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
}
catch (Exception e)
{
exception = e.ToString();
}
}
protected override string RunInBackground(params string[] @params)
{
var storagePath = Android.OS.Environment.ExternalStorageDirectory.Path;
var filePath = System.IO.Path.Combine(storagePath, $"{fileName}.jpg");
try
{
URL url = new URL(@params[0]);
URLConnection connection = url.OpenConnection();
connection.Connect();
int lengthOfFile = connection.ContentLength;
InputStream input = new BufferedInputStream(url.OpenStream(), lengthOfFile);
OutputStream output = new FileOutputStream(filePath);
byte[] data = new byte[1024];
long total = 0;
int count = 0;
while ((count = input.Read(data)) != -1)
{
total += count;
PublishProgress($"{(int)(total / 100) / lengthOfFile}");
output.Write(data, 0, count);
}
output.Flush();
output.Close();
input.Close();
return(string.Empty);
}
catch (Exception ex)
{
return(ex.Message);
}
}
private void CopyTestImageToSdCard(Java.IO.File testImageOnSdCard)
{
new Thread(new Runnable(() =>
{
try
{
Stream is_ = Assets.Open(TEST_FILE_NAME);
FileOutputStream fos = new FileOutputStream(testImageOnSdCard);
byte[] buffer = new byte[8192];
int read;
try
{
while ((read = is_.Read(buffer, 0, buffer.Length)) != -1)
{
fos.Write(buffer, 0, read);
}
}
finally
{
fos.Flush();
fos.Close();
is_.Close();
}
}
catch (Java.IO.IOException e)
{
L.W("Can't copy test image onto SD card");
}
})).Start();
}
private void copyDataBase()
{
Stream iStream = Assets.Open("database/cache.db");
string dbPath = "/data/data/hitec.Droid/files/cache.db";
//path "/data/data/camping.Droid/files/cache.db"
var oStream = new FileOutputStream(dbPath);
bool exists = System.IO.File.Exists(dbPath);
long size = 0;
Android.Net.Uri uri = Android.Net.Uri.FromFile(new Java.IO.File(dbPath));
using (var fd = ContentResolver.OpenFileDescriptor(uri, "r"))
size = fd.StatSize;
if (size == 0)
{
byte[] buffer = new byte[2048];
int length = 2048;
// length = Convert.ToInt16(length2);
while (iStream.Read(buffer, 0, length) > 0)
{
oStream.Write(buffer, 0, length);
}
oStream.Flush();
oStream.Close();
iStream.Close();
}
}
public void copy()
{
string path = System.IO.Path.Combine(System.Environment.GetFolderPath(System.Environment.SpecialFolder.Personal), "Notes3.db-wal");
// string path1 = "/data/user/0/com.companyname.Notes/files/Notes3.db";
File f = new File(path);
// var fileex=f.Exists();
FileInputStream fis = null;
FileOutputStream fos = null;
fis = new FileInputStream(f);
fos = new FileOutputStream("/mnt/sdcard/db_dump.db");
while (true)
{
int i = fis.Read();
if (i != -1)
{
fos.Write(i);
}
else
{
break;
}
}
fos.Flush();
Toast.MakeText(Android.App.Application.Context, "DB dump OK", ToastLength.Short).Show();
fos.Close();
fis.Close();
}
public void Save(string filename, MemoryStream stream)
{
var root = Android.OS.Environment.DirectoryDownloads;
var file = new Java.IO.File(root, filename);
if (file.Exists()) file.Delete();
try
{
var outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
}
catch (Exception e)
{
var f = e;
}
//if (file.Exists())
//{
// var path = Android.Net.Uri.FromFile(file);
// var extension =
// Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
// var mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
// var intent = new Intent(Intent.ActionOpenDocument);
// intent.SetDataAndType(path, mimeType);
// Forms.Context.StartActivity(Intent.CreateChooser(intent, "Choose App"));
//}
}
private static void CopySQLiteDatabaseFromAssetsToData(Context context)
{
// Path to the just created empty db
String outFileName = GetDBPath(context);
if (System.IO.File.Exists(outFileName))
{
return;
}
if (!System.IO.Directory.Exists(GetDBDirectory(context)))
{
System.IO.Directory.CreateDirectory(GetDBDirectory(context));
}
//Open your local db as the input stream
//Open the empty db as the output stream
using (System.IO.Stream myInput = context.Assets.Open("shiplocations.sqlite"))
using (FileOutputStream myOutput = new FileOutputStream(outFileName)) {
//transfer bytes from the inputfile to the outputfile
byte[] buffer = new byte[1024];
int length;
while ((length = myInput.Read(buffer, 0, 1024)) > 0)
{
myOutput.Write(buffer, 0, length);
}
myOutput.Flush();
}
//Close the streams
/*myOutput.Flush();
* myOutput.Close();
* myInput.Close();*/
}
public async Task SaveAndView(string fileName, String contentType, MemoryStream stream)
{
string root = null;
//Get the root path in android device.
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.ToString();
}
else
{
root = System.Environment.GetFolderPath(System.Environment.SpecialFolder.MyDocuments);
}
//Create directory and file
Java.IO.File myDir = new Java.IO.File(root + "/Syncfusion");
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, fileName);
//Remove if the file exists
if (file.Exists())
{
file.Delete();
}
//Write the stream into the file
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
//Invoke the created file for viewing
if (file.Exists())
{
Android.Net.Uri path = Android.Net.Uri.FromFile(file);
var emailMessanger = CrossMessaging.Current.EmailMessenger;
if (emailMessanger.CanSendEmail)
{
var email = new EmailMessageBuilder()
.To("*****@*****.**")
.Subject("Punches")
.Body("Test Run")
.WithAttachment(file)
.Build();
emailMessanger.SendEmail(email);
}
//string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
//string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
//Intent intent = new Intent(Intent.ActionView);
//intent.SetDataAndType(path, mimeType);
//Forms.Context.StartActivity(Intent.CreateChooser(intent, "Choose App"));
}
}
public void Save(string filename, string contentType, MemoryStream stream)
{
string exception = string.Empty;
string root = null;
if (ContextCompat.CheckSelfPermission(Forms.Context, Manifest.Permission.WriteExternalStorage) != Permission.Granted)
{
ActivityCompat.RequestPermissions((Android.App.Activity)Forms.Context, new String[] { Manifest.Permission.WriteExternalStorage }, 1);
}
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.ToString();
}
else
{
root = System.Environment.GetFolderPath(System.Environment.SpecialFolder.MyDocuments);
}
Java.IO.File myDir = new Java.IO.File(root + "/Syncfusion");
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, filename);
if (file.Exists())
{
file.Delete();
}
try
{
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
}
catch (Exception e)
{
exception = e.ToString();
}
if (file.Exists() && contentType != "application/html")
{
//Android.Net.Uri path = Android.Net.Uri.FromFile(file);
//string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
//string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
//Intent intent = new Intent(Intent.ActionView);
//intent.SetDataAndType(path, mimeType);
//Forms.Context.StartActivity(Intent.CreateChooser(intent, "Choose App"));
string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
Intent intent = new Intent(Intent.ActionView);
intent.SetFlags(ActivityFlags.ClearTop | ActivityFlags.NewTask);
Android.Net.Uri path = FileProvider.GetUriForFile(Forms.Context, Android.App.Application.Context.PackageName + ".provider", file);
intent.SetDataAndType(path, mimeType);
intent.AddFlags(ActivityFlags.GrantReadUriPermission);
Forms.Context.StartActivity(Intent.CreateChooser(intent, "Choose App"));
}
}
public string SaveAndViewAsync(string filename, MemoryStream stream)
{
try
{
string root = null;
if (Environment1.IsExternalStorageEmulated)
{
root = Environment1.ExternalStorageDirectory.ToString();
}
else
{
root = System.Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
}
//Create directory and file
Java.IO.File myDir = new Java.IO.File(root + "/DocScan");
myDir.Mkdir();
Java.IO.File myDir1 = new Java.IO.File(root + "/DocScan/Docs");
myDir1.Mkdir();
Java.IO.File file = new Java.IO.File(myDir1, filename);
//Remove if the file exists
if (file.Exists())
{
file.Delete();
}
//Write the stream into the file
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
if (file.Exists())
{
uri1 path = supp.V4.Content.FileProvider.GetUriForFile(andApp.Application.Context, AppInfo.PackageName + ".fileprovider", file);
string extension = andwebkit.MimeTypeMap.GetFileExtensionFromUrl(andNet.Uri.FromFile(file).ToString());
string mimeType = andwebkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
Intent openFile = new Intent();
openFile.SetFlags(ActivityFlags.NewTask);
openFile.SetFlags(ActivityFlags.GrantReadUriPermission);
openFile.SetAction(andContent.Intent.ActionView);
openFile.SetDataAndType(path, mimeType);
Xamarin.Forms.Forms.Context.StartActivity(Intent.CreateChooser(openFile, "Choose App"));
}
return("Finish");
}
catch (System.Exception ex)
{
string d = ex.ToString();
return("Error");
//
}
}
//***************************************************************************************************
//******************FUNCION QUE SE ENCARGA DEL PROCESO DE DESCARGA DE ARCHIVO***********************
//***************************************************************************************************
void DescargaArchivo(ProgressCircleView tem_pcv, string url_archivo)
{
//OBTENEMOS LA RUTA DONDE SE ENCUENTRA LA CARPETA PICTURES DE NUESTRO DISPOSITIVO Y LE CONCTENAMOS
//EL NOMBRE DE UNA CARPETA NUEVA CARPETA, ES AQUI DONDE GUADAREMOS EL ARCHIVO A DESCARGAR
string filePath = Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryPictures).AbsolutePath + "/DescargaImagen/";
Java.IO.File directory = new Java.IO.File(filePath);
//VERIFICAMOS SI LA CARPETA EXISTE, SI NO LA CREAMOS
if (directory.Exists() == false)
{
directory.Mkdir();
}
//ESTABLECEMOS LA UBICACION DE NUESTRO ARCHIVO A DESCARGAR
URL url = new URL(url_archivo);
//CABRIMOS UNA CONEXION CON EL ARCHIVO
URLConnection conexion = url.OpenConnection();
conexion.Connect();
//OBTENEMOS EL TAMAÑO DEL ARCHIVO A DESCARGAR
int lenghtOfFile = conexion.ContentLength;
//CREAMOS UN INPUTSTREAM PARA PODER EXTRAER EL ARCHIVO DE LA CONEXION
InputStream input = new BufferedInputStream(url.OpenStream());
//ASIGNAMOS LA RUTA DONDE SE GUARDARA EL ARCHIVO, Y ASIGNAMOS EL NOMBRE CON EL QUE SE DESCARGAR EL ARCHIVO
//PARA ESTE CASO CONSERVA EL MISMO NOMBRE
string NewFile = directory.AbsolutePath + "/" + url_archivo.Substring(url_archivo.LastIndexOf("/") + 1);
//CREAMOS UN OUTPUTSTREAM EN EL CUAL UTILIZAREMOS PARA CREAR EL ARCHIVO QUE ESTAMOS DESCARGANDO
OutputStream output = new FileOutputStream(NewFile);
byte[] data = new byte[lenghtOfFile];
long total = 0;
int count;
//COMENSAMOS A LEER LOS DATOS DE NUESTRO INPUTSTREAM
while ((count = input.Read(data)) != -1)
{
total += count;
//CON ESTA OPCION REPORTAMOS EL PROGRESO DE LA DESCARGA EN PORCENTAJE A NUESTRO CONTROL
//QUE SE ENCUENTRA EN EL HILO PRINCIPAL
RunOnUiThread(() => tem_pcv.setPorcentaje((int)((total * 100) / lenghtOfFile)));
//ESCRIBIMOS LOS DATOS DELIDOS ES NUESTRO OUTPUTSTREAM
output.Write(data, 0, count);
}
output.Flush();
output.Close();
input.Close();
//INDICAMOS A NUESTRO PROGRESS QUE SE HA COMPLETADO LA DESCARGA AL 100%
RunOnUiThread(() => tem_pcv.setPorcentaje(100));
}
public async Task SaveAndView(string fileName, MemoryStream stream)
{
string root = null;
//Get the root path in android device.
/* if (Android.OS.Environment.IsExternalStorageEmulated)
* {
* root = Android.OS.Environment.ExternalStorageDirectory.ToString();
* }
* else*/
string target = @"C:\Users\Fanelle\Documents\TSR\Test";
root = target;
/*if (!Directory.Exists(target))
* {
* Directory.CreateDirectory(target);
* }*/
//Environment.CurrentDirectory = target;
// root = Directory.GetCurrentDirectory();
//Create directory and file
//string path = @"D:\Python_Files\my_file.py";
/*Java.IO.File file = null;
* using (file = File.Create(root)) ;*/
Java.IO.File myDir = new Java.IO.File(root);
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, fileName);
//Remove if the file exists
//if (file.Exists()) file.Delete();
//Write the stream into the file
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
//Invoke the created file for viewing
/*if (file.Exists())
* {
* Android.Net.Uri path = Android.Net.Uri.FromFile(file);
* string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
* string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
* Intent intent = new Intent(Intent.ActionView);
* intent.SetDataAndType(path, mimeType);
* Forms.Context.StartActivity(Intent.CreateChooser(intent, "Choose App"));
* }*/
}
public void WriteTxtToFile(string buffer, bool append)
{
Log.Info(Tag, "writeTxtToFile strFilePath =" + Path);
RandomAccessFile raf = null;
FileOutputStream outStream = null;
try
{
File dir = new File(Path);
if (!dir.Exists())
{
dir.Mkdirs();
}
File file = new File(Path + "/" + "Result.txt");
if (!file.Exists())
{
file.CreateNewFile();
}
if (append)
{
raf = new RandomAccessFile(file, "rw");
raf.Seek(file.Length());
raf.Write(Encoding.ASCII.GetBytes(buffer));
}
else
{
outStream = new FileOutputStream(file);
outStream.Write(Encoding.ASCII.GetBytes(buffer));
outStream.Flush();
}
}
catch (IOException e)
{
Log.Error(Tag, e.Message);
}
finally
{
try
{
if (raf != null)
{
raf.Close();
}
if (outStream != null)
{
outStream.Close();
}
}
catch (IOException e)
{
Log.Error(Tag, e.Message);
}
}
}
public void Save(string fileName, String contentType, MemoryStream stream)
{
string exception = string.Empty;
string root = null;
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.ToString();
}
else
{
root = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
}
Java.IO.File myDir = new Java.IO.File(root + "/Lebenslauf");
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, fileName);
if (file.Exists())
{
file.Delete();
}
try
{
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
}
catch (Exception e)
{
exception = e.ToString();
}
if (file.Exists() && contentType != "application/html")
{
Android.Net.Uri path = Android.Net.Uri.FromFile(file);
string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
Intent intent = new Intent(Intent.ActionView);
intent.SetDataAndType(path, mimeType);
//Forms.Context.StartActivity(Intent.CreateChooser(intent, "Choose App"));
try
{
Xamarin.Forms.Forms.Context.StartActivity(intent);
}
catch (Exception)
{
Toast.MakeText(Xamarin.Forms.Forms.Context, "Keine Anwendung verfügbar zum Anzeigen von WORD", ToastLength.Long).Show();
var urlStore = Device.OnPlatform("https://itunes.apple.com/ca/app/id683290832?mt=8", "https://play.google.com/store/apps/details?id=com.microsoft.office.word", "");
Device.OpenUri(new Uri(urlStore));
}
}
}
public string EnviarMensajeRecibirArchivo()
{
int bytesRead = 0;
try
{
NetworkStream serverStream = clientSocket.GetStream();
byte[] outStream = Encoding.ASCII.GetBytes("Enviar archivo a dispositivo$");
serverStream.Write(outStream, 0, outStream.Length);
serverStream.Flush();
// Recibimos el archivo y lo guardamos.
MemoryStream memoryStream = new MemoryStream();
byte[] inStream = new byte[4096 * 8];
do
{
bytesRead = serverStream.Read(inStream, 0, inStream.Length);
memoryStream.Write(inStream, 0, bytesRead);
} while (bytesRead > 0);
if (!Directory.Exists(Path.GetDirectoryName(FileName)))
{
Directory.CreateDirectory(Path.GetDirectoryName(FileName));
}
Java.IO.File file = new Java.IO.File(FileName);
if (file.Exists())
{
file.Delete();
}
try
{
FileOutputStream outs = new FileOutputStream(file);
outs.Write(memoryStream.ToArray());
outs.Flush();
outs.Close();
return("Archivo recibido.");
}
catch (Exception ex)
{
return("No se pudo recibir el archivo:\n" + ex.Message);
}
}
catch (ArgumentOutOfRangeException)
{
throw new Exception("Algo anda mal con el tamaño del arreglo: " + bytesRead);
}
catch (Exception ex)
{
throw new Exception("Error desconocido:\n" + ex.Message);
}
} // EnviarMensajeRecibirArchivo()
/// <summary>
/// Used to save a Exporting grid to Excel and PDF file in Android devices from Interface of ISAVE
/// </summary>
/// <param name="fileName">string type of filename parameter</param>
/// <param name="contentType">string type of contentType parameter</param>
/// <param name="stream">MemoryStream type of stream parameter</param>
public void Save(string fileName, string contentType, MemoryStream stream)
{
string exception = string.Empty;
string root = null;
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.ToString();
}
else
{
root = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
}
Java.IO.File myDir = new Java.IO.File(root + "/Syncfusion");
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, fileName);
if (file.Exists())
{
file.Delete();
}
try
{
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
}
catch (Exception e)
{
exception = e.ToString();
}
if (file.Exists() && contentType != "application/html")
{
string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
Intent intent = new Intent(Intent.ActionView);
intent.SetFlags(ActivityFlags.ClearTop | ActivityFlags.NewTask);
//// Forms.Context is obsolete, Hence used local context
Android.Net.Uri path = FileProvider.GetUriForFile(Android.App.Application.Context, Android.App.Application.Context.PackageName + ".provider", file);
intent.SetDataAndType(path, mimeType);
intent.AddFlags(ActivityFlags.GrantReadUriPermission);
Intent chooserIntent = Intent.CreateChooser(intent, "Open With");
chooserIntent.AddFlags(ActivityFlags.NewTask);
Android.App.Application.Context.StartActivity(chooserIntent);
}
}
private async Task <string> WriteFileToCacheDirectory(string fileName, byte[] fileBytes)
{
File outputDir = this._context.CacheDir;
File file = new File(outputDir, fileName);
FileOutputStream fos = new FileOutputStream(file.AbsolutePath);
await fos.WriteAsync(fileBytes);
fos.Flush();
fos.Close();
return(file.AbsolutePath);
}
private string DownloadFile(string sUrl, string filePath)
{
try
{
//get result from uri
URL url = new Java.Net.URL(sUrl);
URLConnection connection = url.OpenConnection();
connection.Connect();
// this will be useful so that you can show a tipical 0-100%
// progress bar
int lengthOfFile = connection.ContentLength;
// download the file
InputStream input = new BufferedInputStream(url.OpenStream(), 8192);
// Output stream
Log.WriteLine(LogPriority.Info, "DownloadFile FilePath ", filePath);
OutputStream output = new FileOutputStream(filePath);
byte[] data = new byte[1024];
long total = 0;
int count;
while ((count = input.Read(data)) != -1)
{
total += count;
// publishing the progress....
// After this onProgressUpdate will be called
//publishProgress("" + (int)((total * 100) / lengthOfFile));
if (total % 10 == 10) //log for every 10th increment
{
Log.WriteLine(LogPriority.Info, "DownloadFile Progress ", "" + (int)((total * 100) / lengthOfFile));
}
// writing data to file
output.Write(data, 0, count);
}
// flushing output
output.Flush();
// closing streams
output.Close();
input.Close();
}
catch (Exception ex)
{
Log.WriteLine(LogPriority.Error, "DownloadFile Error", ex.Message);
}
return(filePath);
}
private void SaveMessage(string message)
{
try
{
if (Context != null)
{
using (File dir = Context.GetDir("RaygunIO", FileCreationMode.Private))
{
int number = 1;
string[] files = dir.List();
while (true)
{
bool exists = FileExists(files, "RaygunErrorMessage" + number + ".txt");
if (!exists)
{
string nextFileName = "RaygunErrorMessage" + (number + 1) + ".txt";
exists = FileExists(files, nextFileName);
if (exists)
{
DeleteFile(dir, nextFileName);
}
break;
}
number++;
}
if (number == 11)
{
string firstFileName = "RaygunErrorMessage1.txt";
if (FileExists(files, firstFileName))
{
DeleteFile(dir, firstFileName);
}
}
using (File file = new File(dir, "RaygunErrorMessage" + number + ".txt"))
{
using (FileOutputStream stream = new FileOutputStream(file))
{
stream.Write(Encoding.ASCII.GetBytes(message));
stream.Flush();
stream.Close();
}
}
System.Diagnostics.Debug.WriteLine("Saved message: " + "RaygunErrorMessage" + number + ".txt");
System.Diagnostics.Debug.WriteLine("File Count: " + dir.List().Length);
}
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(string.Format("Error saving message to isolated storage {0}", ex.Message));
}
}
public void Save(string fileName, String contentType, MemoryStream stream)
{
string exception = string.Empty;
string root = null;
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.ToString();
}
else
{
root = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
}
Java.IO.File myDir = new Java.IO.File(root + "/Syncfusion");
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, fileName);
if (file.Exists())
{
file.Delete();
}
try
{
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
}
catch (Exception e)
{
exception = e.ToString();
}
finally
{
if (contentType != "application/html")
{
stream.Dispose();
}
}
if (file.Exists() && contentType != "application/html")
{
Android.Net.Uri path = Android.Net.Uri.FromFile(file);
string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
Intent intent = new Intent(Intent.ActionView);
intent.SetDataAndType(path, mimeType);
Forms.Context.StartActivity(Intent.CreateChooser(intent, "Choose App"));
}
}
public void encrypt(string filename, string path)
{
// Here you read the cleartext.
try
{
var extStore = new Java.IO.File("/storage/emulated/0/jukebox/Songs");
startTime = System.DateTime.Now.Millisecond;
Android.Util.Log.Error("Encryption Started", extStore + "/" + filename);
// This stream write the encrypted text. This stream will be wrapped by
// another stream.
createFile(filename, extStore);
var webRequest = WebRequest.Create(path);
using (var response = webRequest.GetResponse())
using (var content = response.GetResponseStream())
using (var reader = new StreamReader(content))
{
var strContent = reader.ReadToEnd();
// System.IO.FileStream fs = System.IO.File.OpenWrite(path);
FileOutputStream fos = new FileOutputStream(extStore + "/" + filename + ".aes", false);
// Length is 16 byte
Cipher cipher = Cipher.GetInstance("AES/CBC/PKCS5Padding");
byte[] raw = System.Text.Encoding.Default.GetBytes(sKey);
SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
IvParameterSpec iv = new IvParameterSpec(System.Text.Encoding.Default.GetBytes(ivParameter));//
cipher.Init(Javax.Crypto.CipherMode.EncryptMode, skeySpec, iv);
// Wrap the output stream
CipherInputStream cis = new CipherInputStream(content, cipher);
// Write bytes
int b;
byte[] d = new byte[1024 * 1024];
while ((b = cis.Read(d)) != -1)
{
fos.Write(d, 0, b);
}
// Flush and close streams.
fos.Flush();
fos.Close();
cis.Close();
stopTime = System.DateTime.Now.Millisecond;
Android.Util.Log.Error("Encryption Ended", extStore + "/5mbtest/" + filename + ".aes");
Android.Util.Log.Error("Time Elapsed", ((stopTime - startTime) / 1000.0) + "");
}
}
catch (Exception e)
{
Android.Util.Log.Error("lv", e.Message);
}
}
//Method to save document as a file in Android and view the saved document
public async Task SaveAndView(string fileName, String contentType, MemoryStream stream)
{
string root = null;
if (ContextCompat.CheckSelfPermission(Forms.Context, Manifest.Permission.WriteExternalStorage) != Permission.Granted)
{
ActivityCompat.RequestPermissions((Android.App.Activity)Forms.Context, new String[] { Manifest.Permission.WriteExternalStorage }, 1);
}
//Get the root path in android device.
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.ToString();
}
else
{
root = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
}
//Create directory and file
Java.IO.File myDir = new Java.IO.File(root + "/Syncfusion");
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, fileName);
//Remove if the file exists
if (file.Exists())
{
file.Delete();
}
//Write the stream into the file
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
//Invoke the created file for viewing
if (file.Exists())
{
string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
Intent intent = new Intent(Intent.ActionView);
intent.SetFlags(ActivityFlags.ClearTop | ActivityFlags.NewTask);
Android.Net.Uri path = FileProvider.GetUriForFile(Forms.Context, Android.App.Application.Context.PackageName + ".provider", file);
intent.SetDataAndType(path, mimeType);
intent.AddFlags(ActivityFlags.GrantReadUriPermission);
Forms.Context.StartActivity(Intent.CreateChooser(intent, "Choose App"));
}
}
public void Print(string fileName, string contentType, MemoryStream stream)
{
string root;
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.ToString();
}
else
{
root = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
}
Java.IO.File myDir = new Java.IO.File($"{root}/Atas");
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, fileName);
if (file.Exists())
{
file.Delete();
}
try
{
FileOutputStream outs = new FileOutputStream(file);
stream.Position = 0;
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
}
catch (Exception e)
{
Debug.WriteLine($"Print error: {e.ToString()}");
}
finally
{
stream.Dispose();
}
if (file.Exists())
{
string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
Intent intent = new Intent(Intent.ActionView);
var contentUri = FileProvider.GetUriForFile(Android.App.Application.Context, Android.App.Application.Context.PackageName + ".fileprovider", file);
intent.SetDataAndType(contentUri, mimeType);
intent.AddFlags(ActivityFlags.GrantReadUriPermission);
intent.AddFlags(ActivityFlags.NewTask);
intent.AddFlags(ActivityFlags.ClearTop);
MainActivity.Instance.StartActivity(intent);
}
}
public void OnPictureTaken(byte[] data, Camera camera)
{
try
{
var path = Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryPictures);
File pictureFile = new File(path, "/" + Picture_Name);
if (pictureFile.Exists())
{
pictureFile.Delete();
}
File NewPicture = new File(path, "/" + "face.JPG");
if (NewPicture.Exists())
{
NewPicture.Delete();
}
FileOutputStream file = null;
FileOutputStream newfile = null;
if (data != null)
{
try
{
file = new FileOutputStream(pictureFile);
file.Write(data);
file.Flush();
System.IO.MemoryStream imageStream = new System.IO.MemoryStream(data);
var CurrentStatus = System.Convert.ToString(pictureFile.Path);
MessagingCenter.Send(new MyMessage()
{
Myvalue = CurrentStatus
}, "PictureTaken");
}
catch (FileNotFoundException e)
{
}
catch (IOException ie)
{
}
finally
{
file?.Close();
}
}
File deleteFile = new File(pictureFile.Path);
bool deleted = deleteFile.Delete();
}
catch (Exception ex)
{
}
}
public void Save(string fileName, String contentType, MemoryStream stream)
{
string exception = string.Empty;
string root = null;
if (Android.OS.Environment.IsExternalStorageEmulated)
{
root = Android.OS.Environment.ExternalStorageDirectory.ToString();
}
else
root = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
Java.IO.File myDir = new Java.IO.File(root + "/Syncfusion");
myDir.Mkdir();
Java.IO.File file = new Java.IO.File(myDir, fileName);
if (file.Exists()) file.Delete();
try
{
FileOutputStream outs = new FileOutputStream(file);
outs.Write(stream.ToArray());
outs.Flush();
outs.Close();
}
catch (Exception e)
{
exception = e.ToString();
}
if (file.Exists() && contentType != "application/html")
{
Android.Net.Uri path = Android.Net.Uri.FromFile(file);
string extension = Android.Webkit.MimeTypeMap.GetFileExtensionFromUrl(Android.Net.Uri.FromFile(file).ToString());
string mimeType = Android.Webkit.MimeTypeMap.Singleton.GetMimeTypeFromExtension(extension);
Intent intent = new Intent(Intent.ActionView);
intent.SetDataAndType(path, mimeType);
Forms.Context.StartActivity(Intent.CreateChooser(intent, "Choose App"));
}
}
private void SaveMessage(string message)
{
try
{
if (Context != null)
{
using (File dir = Context.GetDir("RaygunIO", FileCreationMode.Private))
{
int number = 1;
string[] files = dir.List();
while (true)
{
bool exists = FileExists(files, "RaygunErrorMessage" + number + ".txt");
if (!exists)
{
string nextFileName = "RaygunErrorMessage" + (number + 1) + ".txt";
exists = FileExists(files, nextFileName);
if (exists)
{
DeleteFile(dir, nextFileName);
}
break;
}
number++;
}
if (number == 11)
{
string firstFileName = "RaygunErrorMessage1.txt";
if (FileExists(files, firstFileName))
{
DeleteFile(dir, firstFileName);
}
}
using (File file = new File(dir, "RaygunErrorMessage" + number + ".txt"))
{
using (FileOutputStream stream = new FileOutputStream(file))
{
stream.Write(Encoding.ASCII.GetBytes(message));
stream.Flush();
stream.Close();
}
}
System.Diagnostics.Debug.WriteLine("Saved message: " + "RaygunErrorMessage" + number + ".txt");
System.Diagnostics.Debug.WriteLine("File Count: " + dir.List().Length);
}
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(string.Format("Error saving message to isolated storage {0}", ex.Message));
}
}
private void copyDataBase()
{
Stream iStream = Assets.Open("database/cache.db");
var oStream = new FileOutputStream ("/data/data/hitec.Droid/files/cache.db");
byte[] buffer = new byte[2048];
int length = 2048;
// length = Convert.ToInt16(length2);
while (iStream.Read(buffer, 0, length) > 0)
{
oStream.Write(buffer, 0, length);
}
oStream.Flush();
oStream.Close();
iStream.Close();
}
public static Java.IO.File bitmapToFile(Bitmap inImage)
{
//create a file to write bitmap data
Java.IO.File f = new Java.IO.File(nn_context.CacheDir, "tempimgforfacebookshare");
f.CreateNewFile();
//Convert bitmap to byte array
Bitmap bitmap = inImage;
var bos = new MemoryStream();
bitmap.Compress(Bitmap.CompressFormat.Png, 0, bos);
byte[] bitmapdata = bos.ToArray ();
//write the bytes in file
FileOutputStream fos = new FileOutputStream(f);
fos.Write(bitmapdata);
fos.Flush();
fos.Close();
return f;
}
protected override Java.Lang.Object DoInBackground (params Java.Lang.Object[] @params)
{
//REALIZAMOS EL PROCESO DE DESCARGA DEL ARCHIVO
try{
string filePath = Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryPictures).AbsolutePath+"/DescargaImagen/" ;
Java.IO.File directory = new Java.IO.File (filePath);
if(directory.Exists() ==false)
{
directory.Mkdir();
}
//RECUPERAMOS LA DIRECCION DEL ARCHIVO QUE DESEAMOS DESCARGAR
string url_link = @params [0].ToString ();
URL url = new URL(url_link);
URLConnection conexion = url.OpenConnection();
conexion.Connect ();
int lenghtOfFile = conexion.ContentLength;
InputStream input = new BufferedInputStream(url.OpenStream());
string NewImageFile = directory.AbsolutePath+ "/"+ url_link.Substring (url_link.LastIndexOf ("/") + 1);
OutputStream output = new FileOutputStream(NewImageFile);
byte[] data= new byte[lenghtOfFile];
int count;
while ((count = input.Read(data)) != -1)
{
output.Write(data, 0, count);
}
output.Flush();
output.Close();
input.Close();
return true;
}catch {
return false;
}
}
//***************************************************************************************************
//******************FUNCION QUE SE ENCARGA DEL PROCESO DE DESCARGA DE ARCHIVO***********************
//***************************************************************************************************
void DescargaArchivo(ProgressCircleView tem_pcv, string url_archivo)
{
//OBTENEMOS LA RUTA DONDE SE ENCUENTRA LA CARPETA PICTURES DE NUESTRO DISPOSITIVO Y LE CONCTENAMOS
//EL NOMBRE DE UNA CARPETA NUEVA CARPETA, ES AQUI DONDE GUADAREMOS EL ARCHIVO A DESCARGAR
string filePath = Android.OS.Environment.GetExternalStoragePublicDirectory(Android.OS.Environment.DirectoryPictures).AbsolutePath+"/DescargaImagen/" ;
Java.IO.File directory = new Java.IO.File (filePath);
//VERIFICAMOS SI LA CARPETA EXISTE, SI NO LA CREAMOS
if(directory.Exists() ==false)
{
directory.Mkdir();
}
//ESTABLECEMOS LA UBICACION DE NUESTRO ARCHIVO A DESCARGAR
URL url = new URL(url_archivo);
//CABRIMOS UNA CONEXION CON EL ARCHIVO
URLConnection conexion = url.OpenConnection();
conexion.Connect ();
//OBTENEMOS EL TAMAÑO DEL ARCHIVO A DESCARGAR
int lenghtOfFile = conexion.ContentLength;
//CREAMOS UN INPUTSTREAM PARA PODER EXTRAER EL ARCHIVO DE LA CONEXION
InputStream input = new BufferedInputStream(url.OpenStream());
//ASIGNAMOS LA RUTA DONDE SE GUARDARA EL ARCHIVO, Y ASIGNAMOS EL NOMBRE CON EL QUE SE DESCARGAR EL ARCHIVO
//PARA ESTE CASO CONSERVA EL MISMO NOMBRE
string NewFile = directory.AbsolutePath+ "/"+ url_archivo.Substring (url_archivo.LastIndexOf ("/") + 1);
//CREAMOS UN OUTPUTSTREAM EN EL CUAL UTILIZAREMOS PARA CREAR EL ARCHIVO QUE ESTAMOS DESCARGANDO
OutputStream output = new FileOutputStream(NewFile);
byte[] data= new byte[lenghtOfFile];
long total = 0;
int count;
//COMENSAMOS A LEER LOS DATOS DE NUESTRO INPUTSTREAM
while ((count = input.Read(data)) != -1)
{
total += count;
//CON ESTA OPCION REPORTAMOS EL PROGRESO DE LA DESCARGA EN PORCENTAJE A NUESTRO CONTROL
//QUE SE ENCUENTRA EN EL HILO PRINCIPAL
RunOnUiThread(() => tem_pcv.setPorcentaje ((int)((total*100)/lenghtOfFile)));
//ESCRIBIMOS LOS DATOS DELIDOS ES NUESTRO OUTPUTSTREAM
output.Write(data, 0, count);
}
output.Flush();
output.Close();
input.Close();
//INDICAMOS A NUESTRO PROGRESS QUE SE HA COMPLETADO LA DESCARGA AL 100%
RunOnUiThread(() => tem_pcv.setPorcentaje (100));
}
private void copyDataBase()
{
Stream iStream = Assets.Open("database/cache.db");
string dbPath = "/data/data/camping.Droid/files/cache.db";
//path "/data/data/camping.Droid/files/cache.db"
var oStream = new FileOutputStream (dbPath);
bool exists = System.IO.File.Exists(dbPath);
long size = 0;
Android.Net.Uri uri = Android.Net.Uri.FromFile(new Java.IO.File(dbPath));
using (var fd = ContentResolver.OpenFileDescriptor(uri, "r"))
size = fd.StatSize;
if ( size == 0 ) {
byte[] buffer = new byte[2048];
int length = 2048;
// length = Convert.ToInt16(length2);
while (iStream.Read(buffer, 0, length) > 0)
{
oStream.Write(buffer, 0, length);
}
oStream.Flush();
oStream.Close();
iStream.Close();
}
}
private void CopyTestImageToSdCard(Java.IO.File testImageOnSdCard)
{
new Thread(new Runnable(() =>
{
try
{
Stream is_ = Assets.Open(TEST_FILE_NAME);
FileOutputStream fos = new FileOutputStream(testImageOnSdCard);
byte[] buffer = new byte[8192];
int read;
try
{
while ((read = is_.Read(buffer, 0, buffer.Length)) != -1)
{
fos.Write(buffer, 0, read);
}
}
finally
{
fos.Flush();
fos.Close();
is_.Close();
}
}
catch (Java.IO.IOException e)
{
L.W("Can't copy test image onto SD card");
}
})).Start();
}
/// <summary>
/// Downloads the resource with the specified URI to a local file.
/// </summary>
public void DownloadFile(URL address, string fileName)
{
URLConnection connection = null;
InputStream inputStream = null;
OutputStream outputStream = new FileOutputStream(fileName);
try
{
connection = OpenConnection(address);
inputStream = connection.InputStream;
var buffer = new byte[BUFFER_SIZE];
int len;
while ((len = inputStream.Read(buffer, 0, BUFFER_SIZE)) > 0)
{
outputStream.Write(buffer, 0, len);
}
outputStream.Flush();
}
finally
{
if (inputStream != null)
inputStream.Close();
var httpConnection = connection as HttpURLConnection;
if (httpConnection != null)
httpConnection.Disconnect();
outputStream.Close();
}
}