public void onCreate(Bundle savedInstanceState) 
    {
    	String message = "";
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

        try
        {
	        ConnectivityManager cMgr = (ConnectivityManager)
	           this.getSystemService(Context.CONNECTIVITY_SERVICE);
                if(cMgr != null)
                {
	           NetworkInfo netInfo = cMgr.getActiveNetworkInfo();
        	   message = "View1 "+ netInfo.toString();
	           Log.i("NetInfoTest", message);
	        }
        }
        catch(Exception e)
        {
        	message = "That didn't work: "+e.toString();
            Log.i("NetInfoTest", message);
                  	
        }
        
        // example using toast
        Context context = getApplicationContext();
        int duration = Toast.LENGTH_LONG;

        Toast toast = Toast.makeText(context, message, duration);
        toast.setGravity(Gravity.TOP|Gravity.LEFT, 0, 0);
        toast.show();
        
        //setting text field's content
        TextView netinfoText = (TextView)this.findViewById(R.id.net_info);
        netinfoText.setText(message);
        
        Button button = (Button)this.findViewById(R.id.switch_view);
        button.setOnClickListener(this);        
    }

    public void onClick(View v)
    {
  	  Intent i = new Intent(this, NetInfo2.class); 
	  startActivity(i);
    }

<uses-permission android:name="android.permission.INTERNET"></uses-permission>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE">
The first is for general networking, the second is for the actual info we have above.

        InputMethodManager mgr = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
        // only will trigger it if no physical keyboard is open
        mgr.showSoftInput(netinfoText, InputMethodManager.SHOW_IMPLICIT);           

InputMethodManager imm = (InputMethodManager)getSystemService(Context.INPUT_METHOD_SERVICE);
imm.hideSoftInputFromWindow(netinfoText.getWindowToken(), 0);

import java.io.*;
import java.net.*;

public final class MyServer extends Thread
{
   private static final int PORT=8889;
   private static final int NUM_CONNECT=1;

   private MyServer() {}

   public static void main(String args[])
   {
      MyServer myServer = new MyServer();
      if(myServer !=null) {myServer.start();}
   }

   public void run()
   {
      try
      {
         ServerSocket server = new ServerSocket(PORT, NUM_CONNECT);
         Socket client = server.accept();
         
         BufferedReader reader = new BufferedReader(
            new InputStreamReader(client.getInputStream()));

         BufferedWriter writer = new BufferedWriter(
            new OutputStreamWriter(client.getOutputStream()));

         // do some reading and writing
      }
      catch(IOException ie)
      {
         ie.printStackTrace();
      }
   }
}

package org.pollett;

import android.app.Activity;
import android.os.Bundle;
import android.net.*;
import android.content.*;
import android.util.*;

public class MyClient extends Activity
{
   public void onCreate(Bundle savedInstanceState) 
   {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
 
        this.socketButton.setOnClickListener(new OnClickListener)() {
        public void onClick(final View v) {
           socketOutput.setText("");
           String output = callSocket(ipAddress.getText().toString(),
             port.getText().toString(),
             socketInput.getText().toString());
           socketOutput.setText(output);
        } 

       }
   }

   private String callSocket(String ip, String port, String socketData) {
      Socket socket = null;
      BufferedWriter writer = null;
      BufferedReader reader =null;
      String output = null;

      try{
         socket = new Socket(ip, Integer.parseInt(port));
         reader = new BufferedReader(
            new InputStreamReader(socket.getInputStream()));

         writer = new BufferedWriter(
            new OutputStreamWriter(socket.getOutputStream()));

         writer.write("hello world"+socketData+"\n");
         writer.flush();
         output = reader.readLine();
       
  
      }
      catch(Exception e){}
      return output;
   }

}

• Add the line:

   <uses-permission android:name="android.permission.INTERNET"></uses-permission>     
  
  

  to the manifest file
• Add a WebView to our layout:

  <WebView  
      android:id="@+id/webview"
      android:layout_width="fill_parent" 
      android:layout_height="wrap_content" 
      />
  

• Set the web page of the view in onCreate. (Need to import package android.webkit.*) :

  webview = (WebView) findViewById(R.id.webview);
  webview.getSettings().setJavaScriptEnabled(true);
  webview.loadUrl("http://www.pollett.org/");
  

• It should be noted that both the browsers in Android and iPhone are built off of webkit.

private class MyWebViewClient extends WebViewClient {
    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        view.loadUrl(url);
        return true;
    }
}

webview.setWebViewClient(new MyWebViewClient());

URL/service_name/method_name/?arg1=value1&arg2=value2...

String location="URL/service_name/method_name/?arg1=value1&arg2=value2";
String result = null;
try {
   URL url = new URL(location);
} catch (MalformedURLException e) {
  //handle somehow
}
if(url != null) {
   try {
      HttpURLConnection urlConn =
         (HttpURLConnection) url.openConnection();

      BufferedReader in =
         new BufferedReader(
            new InputStreamReader(
               urlConn.getInputStream()));
      String inputLine;
      while((inputLine = in.readLine()) != null)
      {
         result += "\n" + inputLine;
      }
   }
   catch (IOException e) {
   // handle somehow
   }

   return result;
}
return null;