Receiving Large Data via UDP

[walterf25]

Hi Erel, thanks for helping me out with the other issues i was having, now i have another question, when i receive the data being trasmitted from my desktop i only receive 128 bytes, the image files i'm transmitting vary in size, but for some reason i only receive 128 bytes every time, can you help me again by giving me some tips on how to receive all the information so that i can save the data into a text file and reconstruct the image on my phone,

i'm using this to receive the data packets

Sub UDP_PacketArrived (Packet As UDPPacket)


 imageview2.Initialize("imageview2")

msg = BytesToString(Packet.data, Packet.Offset, Packet.Length, "UTF8")', Packet.Offset, Packet.Length, "UTF8")
msg1 = helper.DecodeBase64(msg)

  'msg = (Packet.Data)', Packet.Offset, Packet.Length)
'header = Regex.Split("~", msg)  'split incoming data at "~" and end up with 2 items

screenheight = 1024'header(0)      'extract first item of message = screenheight
screenwidth = 800' header(1)         'extract second item of message = screenwidth

phoney = lv.Height            'get phone's screen resolution = height
phonex = lv.Width            'get phone's screen resolution = width

scaley = screenheight / phoney      'calculate scale for y
scalex = screenwidth / phonex      'calculate scale for x
'label1.Text = msg'"H: " & screenheight & " W: " & screenwidth

'imageview2.Bitmap = GetBitmapFromByteArray.Initialize2(msg)


Dim InputStream1 As InputStream
InputStream1.InitializeFromBytesArray(msg1, 0, msg1.Length)
Dim bitmap1 As Bitmap

File.WriteString(File.DirRootExternal,"testimage.txt", msg)
Dim o As OutputStream
o.InitializeToBytesArray(msg1.length)
o.WriteBytes(msg1, 0, msg1.Length)

InputStream1.Close 
'bitmap1.Initialize2(InputStream1)   
'imageview2.SetBackgroundImage(bitmap1)

End Sub

thanks Erel,

 

[poseidon]

re

declare a variable as stringbuilder at activity body

at UDP_PacketArrived
stringbuilder.append(BytesToString(Packet.data, Packet.Offset, Packet.Length, "UTF8"))

--
when stop receiving stringbuilder.Tostring() 'or something like that in b4android. (im out of office at the moment).


stop receiving maybe is better on server side at the end of the stream, add <end> or whatever string you like so at UDP_PacketArrived when BytesToString.Contains("<end>") then stringbuilder.Tostring()

I dont know if is clear for you (?)