Android™
Android™
Connect a TCP or TLS Socket
See more Socket/SSL/TLS Examples
Demonstrates Socket.Connect, which establishes a TCP connection to a host and port. Setting the TLS argument to _TRUE_ performs a TLS handshake after the TCP connection succeeds.
Background. The hostname may be a DNS name or a numeric IPv4/IPv6 address. The final argument bounds how long the connect attempt waits before failing. On failure,
ConnectFailReason and LastErrorText provide detail.Chilkat Android™ Downloads
// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;
import android.app.Activity;
import com.chilkatsoft.*;
import android.widget.TextView;
import android.os.Bundle;
public class SimpleActivity extends Activity {
private static final String TAG = "Chilkat";
// Called when the activity is first created.
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
boolean success = false;
CkSocket socket = new CkSocket();
// Connect to the server using TLS. The 3rd argument enables the TLS handshake after the TCP
// connection succeeds; the 4th is the maximum time to wait, in milliseconds.
boolean bTls = true;
int maxWaitMs = 5000;
success = socket.Connect("example.com",5000,bTls,maxWaitMs);
if (success == false) {
Log.i(TAG, socket.lastErrorText());
return;
}
// StringCharset controls the character encoding used when sending and receiving text.
socket.put_StringCharset("utf-8");
// The socket is now connected and ready to send and receive data using whatever protocol the
// application implements.
Log.i(TAG, "Connected: " + String.valueOf(socket.get_IsConnected()));
// Close the connection when finished. The argument is the maximum time to wait for a clean
// shutdown, in milliseconds.
success = socket.Close(1000);
if (success == false) {
Log.i(TAG, socket.lastErrorText());
return;
}
}
static {
System.loadLibrary("chilkat");
// Note: If the incorrect library name is passed to System.loadLibrary,
// then you will see the following error message at application startup:
//"The application <your-application-name> has stopped unexpectedly. Please try again."
}
}