public void senddexfile()
{
try
{
BluetoothGattCharacteristic charac = ConnectedGatt.GetService(DEX_SERVICE_SPP)
.GetCharacteristic(DEX_CHARACTERISTIC_DATAWRITE);
string filepath = "DEX_SAMPLE.txt";
byte[] buffer = new byte[20];
lock (ConnectedGatt)
{
try
{
Stream inputstream = asm.Open(filepath);
while (inputstream.Read(buffer, 0, buffer.Length) > 0)
{
charac.SetValue(buffer);
Java.Lang.Thread.Sleep(20);
bool status = ConnectedGatt.WriteCharacteristic(charac);
if (!status)
{
MainActivity.RunOnUiThread(() =>
{
Log.Info(TAG + DexService.Operation, "send dexFile completed!");
});
break;
}
Arrays.Fill(buffer, 0);
}
inputstream.Close();
}
catch (Java.IO.IOException e)
{
e.PrintStackTrace();
}
catch (InterruptedException e)
{
e.PrintStackTrace();
}
}
}
catch (Java.Lang.Exception e)
{
Console.WriteLine(e);
throw;
}
}
//public bool Waiting { get; set; }
public void SendDexBytes(byte[] bytes, CancellationToken token)
{
BluetoothGattCharacteristic charac = ConnectedGatt.GetService(DEX_SERVICE_SPP)
.GetCharacteristic(DEX_CHARACTERISTIC_DATAWRITE);
lock (ConnectedGatt)
{
try
{
int ctr = 0;
byte[] buffer = new byte[20];
while (bytes.Length > ctr * 20)
{
var len = bytes.Length;
var rendu = ctr * 20;
buffer = len > rendu + 20
? bytes.Skip(20 * ctr).Take(20).ToArray()
: bytes.Skip(20 * ctr).Take(len - rendu).ToArray();
charac.SetValue(buffer);
ctr++;
Java.Lang.Thread.Sleep(20);
// charac.WriteType = GattWriteType.NoResponse;
bool status = ConnectedGatt.WriteCharacteristic(charac);
if (!status || ctr * 20 > len)
{
var read = ConnectedGatt.ReadCharacteristic(charac);
charac.GetValue();
if (read)
{
MainActivity.RunOnUiThread(() =>
{
Log.Info(TAG + DexService.Operation, "Read completed!");
});
}
break;
}
Arrays.Fill(buffer, 0);
}
}
catch (Java.IO.IOException e)
{
e.PrintStackTrace();
}
catch (InterruptedException e)
{
e.PrintStackTrace();
}
catch (System.OperationCanceledException)
{
Log.Warn(TAG + DexService.Operation, "Send Dex Bytes Cancelled");
}
catch (Java.Lang.Exception ex)
{
Log.Error(TAG, ex.Message);
}
}
}
