AndroidWebImage.java

package com.exercise.AndroidWebImage;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLConnection;


import android.app.Activity;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.Bundle;
import android.os.Environment;
import android.view.View;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.Toast;

public class AndroidWebImage extends Activity {

String extStorageDirectory;

Bitmap bm;

  /** Called when the activity is first created. */
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main);

      Button buttonSave = (Button)findViewById(R.id.save);

      ImageView bmImage = (ImageView)findViewById(R.id.image);

   bm = BitmapFactory.decodeResource( getResources(), R.drawable.ic_launcher);
   bmImage.setImageBitmap(bm);

   extStorageDirectory = Environment.getExternalStorageDirectory().toString();
   buttonSave.setText("Save to " + extStorageDirectory + "/ic_launcher.PNG");
   buttonSave.setOnClickListener(buttonSaveOnClickListener);
  }


Button.OnClickListener buttonSaveOnClickListener
 = new Button.OnClickListener(){

  @Override
  public void onClick(View arg0) {
   // TODO Auto-generated method stub
   OutputStream outStream = null;
   File file = new File(extStorageDirectory, "ic_launcher.PNG");
   try {
    outStream = new FileOutputStream(file);
    bm.compress(Bitmap.CompressFormat.PNG, 100, outStream);
    outStream.flush();
    outStream.close();

    Toast.makeText(AndroidWebImage.this, "Saved", Toast.LENGTH_LONG).show();

   } catch (FileNotFoundException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    Toast.makeText(AndroidWebImage.this, e.toString(), Toast.LENGTH_LONG).show();
   } catch (IOException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
    Toast.makeText(AndroidWebImage.this, e.toString(), Toast.LENGTH_LONG).show();
   }

  }

};

}