How to download and display Images in android

/*
This example helps you to display the remote images in android. The progress bar will be displayed when application downloading the image. Progress bar will be stopped when the download completes and the Image will be displayed. This is also a good example for using thread in the background.. I Hope it helps..
*/

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.URL;

import android.app.Activity;
import android.app.Dialog;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.widget.ImageView;

public class ViewStorageImage extends Activity {
      private String url;
      ImageView iv;
      Thread t;
      Bitmap bm;
      ProgressDialog dialog;
       @Override
      public void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            showDialog(0);
            setContentView(R.layout.storageimage);
            url = "http://.........";//enter the url here..
            iv=(ImageView)findViewById(R.id.storageactualimage);
            t=new Thread() {
                  public void run() {
                        viewImage();
                  }
            };
            t.start();
      }
      @Override
      protected Dialog onCreateDialog(int id) {
            switch (id) {
                  case 0: {
                        dialog = new ProgressDialog(this);
                        dialog.setMessage("Please wait while loading...");
                        dialog.setIndeterminate(true);
                        dialog.setCancelable(true);
                        return dialog;
                  }
            }
            return null;
      }
      private Handler handler = new Handler() {
            @Override
            public void handleMessage(Message msg) {
                  Bitmap image=(Bitmap)msg.obj;
                  ImageView iv=new ImageView(this);
                  iv.setImageBitmap(image);
                  setContentView(iv);
            }
      };
      public void viewImage() {
            try {
                  URL myURL = new URL(url);
                  final BufferedInputStream bis = new BufferedInputStream(myURL.openStream(), 1024);
                  final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
                  BufferedOutputStream out = new BufferedOutputStream(dataStream,1024);
                  copy(bis, out);
                  out.flush();
                  final byte[] data = dataStream.toByteArray();
                  BitmapFactory.Options bfo = new BitmapFactory.Options();
                  bfo.inSampleSize = 2;
                  bm = BitmapFactory.decodeByteArray(data, 0, data.length, bfo);
                  bis.close();
                  removeDialog(0);
                  Message myMessage=new Message();
                  myMessage.obj=bm;
                  handler.sendMessage(myMessage);
            }
            catch (Exception e) {
                  finish();
            }
      }
      static final int BUFF_SIZE = 1024;
      static final byte[] buffer = new byte[BUFF_SIZE];
      public static void copy(BufferedInputStream in, BufferedOutputStream out) throws IOException {
            try {
                  while (true) {
                              synchronized (buffer) {
                              int amountRead = in.read(buffer);
                              if (amountRead == -1) {
                                    break;
                              }
                              out.write(buffer, 0, amountRead);
                        }
                  }
            }
            catch(Exception e){
                  if (in != null) {
                        in.close();
                  }
                  if (out != null) {
                        out.close();
                  }
            }
            finally {
                  if (in != null) {
                        in.close();
                  }
                  if (out != null) {
                        out.close();
                  }
            }
      }
}