Android Question Send string text from B4A into


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Longtime User

could any one have an idea about send string text from B4A into

I have already complete the first part is send string text from into B4A and it successfully done.

But I can not understand what is the code should be to send string text from B4A into

here is my code for B4A

'Activity module
Sub Process_Globals
  Dim ServerSocket1 As ServerSocket
  Dim Socket1 As Socket
  Dim Timer1 As Timer
  Dim InputStream1 As InputStream
'  Dim OutputStream1 As OutputStream
  Dim raf As RandomAccessFile
End Sub

Sub Globals
  Dim lblName As Label
    Dim lbl_connection As Label
    Dim txt_recive As EditText
    Private btn_send As Button
End Sub

Sub Activity_Create(FirstTime As Boolean)
  If FirstTime Then
      Timer1.Initialize("Timer1", 200)
      File.MakeDir(File.DirRootExternal, "android") 'probably already exists
  End If
  'Initialize the server socket if it is not initialized.
  'ServerSocket1 will not be initialized when FirstTime=True and after the user
  'closed the activity and then opened it again (by pressing on the back key)
  If ServerSocket1.IsInitialized = False Then
      ServerSocket1.Initialize(2222, "ServerSocket1")
  End If
  ToastMessageShow("My IP: " & ServerSocket1.GetMyIP, True)
End Sub
Sub ServerSocket1_NewConnection (Successful As Boolean, NewSocket As Socket)
  If Successful Then
      Socket1 = NewSocket
      Timer1.Enabled = True
      InputStream1 = Socket1.InputStream
'      OutputStream1 = Socket1.OutputStream
      lbl_connection.Text= "Connected"
      ToastMessageShow("Connected", True)
      Msgbox(LastException.Message, "Error connecting")
  End If
  ServerSocket1.Listen 'Continue listening to new incoming connections
End Sub

Sub Activity_Resume
End Sub

Sub Activity_Pause (UserClosed As Boolean)
  If UserClosed Then
      Timer1.Enabled = False
      ServerSocket1.Close 'stop listening
  End If
End Sub

Sub Timer1_Tick
  Dim BC As ByteConverter
  If InputStream1.BytesAvailable > 0 Then
      Timer1.Enabled = False
      Dim buffer(8192) As Byte
      raf.Initialize3(buffer, True)

      InputStream1.ReadBytes(buffer, 0, buffer.Length)
  Timer1.Enabled = True
  End If
End Sub

Sub btn_send_Click
    ' what is the code should be here to send string text into the text box in the
End Sub

what is the code should be in btn_send to send the text into the ?

Here is my code

Imports System.Threading
Imports System.Net
Imports System.Net.Sockets

Public Class Form1

    Dim ip As IPAddress = IPAddress.Parse("")
    ' the port must be the same in client ans server
    Dim port As Integer = 2222
    Dim sock As New TcpClient()
    Dim Listener As New TcpListener(2222)
    Dim Client As New TcpClient
    Dim Message As String = ""

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click

        ip = IPAddress.Parse(TextBox_ip.Text)
        port = TextBox_port.Text
            sock.Connect(ip, port)
        Catch ex As Exception

        End Try
    End Sub

    Private Sub Button2_Click(sender As Object, e As EventArgs) Handles Button2.Click
    End Sub
    Private Sub Listening()
    End Sub

    Private Sub Form1_FormClosing(sender As Object, e As FormClosingEventArgs) Handles Me.FormClosing
    End Sub

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        Dim ListThread As New Thread(New ThreadStart(AddressOf Listening))
    End Sub

    Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer1.Tick
        If Listener.Pending = True Then
            Message = ""
            Client = Listener.AcceptTcpClient()

            Dim Reader As New StreamReader(Client.GetStream())
            While Reader.Peek > -1
                Message = Message + Convert.ToChar(Reader.Read()).ToString
            End While

            MsgBox(Message, MsgBoxStyle.OkOnly)
        End If
    End Sub
End Class

Dose any one have any idea? ... plz help I am new in B4A

Modify my code ..plz



New Member
Licensed User
Longtime User
This is an community forum. We are here to HELP you LEARNING B4A. We are NOT here to write the code for you.
Yes I agree. I am 65 y and a novice programmer. There are times however that one just cant get your head around the code. It is then that samples and examples really help. By cut and paste a new program is generated and undoubtfully new methods are learnt.
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