public class GetPictureFromInternetActivity extends Activity 
{ 
 private ImageView imageView; 
 public void onCreate(Bundle savedInstanceState) 
 { 
 super.onCreate(savedInstanceState); 
 setContentView(R.layout.main); 
  String url = "http://img1.gcimg.net/att/day_120330/1203301402671605a8a7994804.png"; 
// String url = "http://www.gezila.com/uploads/allimg/110110/1_110110084544_1.jpg"; 
 imageView = (ImageView) this.findViewById(R.id.imageView); 
 Bitmap bitmap = getHttpBitmap(url);//从网络获取图片 
 imageView.setImageBitmap(bitmap); 
 savePicture(bitmap);//保存图片到SD卡 
 } 
 public Bitmap getHttpBitmap(String url) 
 { 
 Bitmap bitmap = null; 
 try 
 { 
  URL pictureUrl = new URL(url); 
  InputStream in = pictureUrl.openStream(); 
  bitmap = BitmapFactory.decodeStream(in); 
  in.close(); 
 } catch (MalformedURLException e) 
 { 
  e.printStackTrace(); 
 } catch (IOException e) 
 { 
  e.printStackTrace(); 
 } 
 return bitmap; 
 } 
 public void savePicture(Bitmap bitmap) 
 { 
 String pictureName = "/mnt/sdcard/" + "car"+".jpg"; 
 File file = new File(pictureName); 
 FileOutputStream out; 
 try 
 { 
  out = new FileOutputStream(file); 
  bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out); 
  out.flush(); 
  out.close(); 
 } catch (FileNotFoundException e) 
 { 
  e.printStackTrace(); 
 } catch (IOException e) 
 { 
  e.printStackTrace(); 
 } 
 } 
 public boolean onCreateOptionsMenu(Menu menu) 
 { 
 super.onCreateOptionsMenu(menu); 
 MenuItem item = menu.add(Menu.NONE, Menu.NONE, Menu.NONE, "Exit"); 
 item.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() 
 { 
  public boolean onMenuItemClick(MenuItem item) 
  { 
  System.exit(0); 
  return true; 
  } 
 }); 
 return true; 
 } 
}

public Bitmap getHttpBitmap(String url) 
{ 
 Bitmap bitmap = null; 
 try 
 { 
  URL pictureUrl = new URL(url); 
  InputStream in = pictureUrl.openStream(); 
  bitmap = BitmapFactory.decodeStream(in); 
  in.close(); 
 } catch (MalformedURLException e) 
 { 
  e.printStackTrace(); 
 } catch (IOException e) 
 { 
  e.printStackTrace(); 
 } 
 return bitmap; 
}

public Bitmap getHttpBitmap(String url) 
{ 
 Bitmap bitmap = null; 
 try 
 { 
  URL pictureUrl = new URL(url); 
  URLConnection con = pictureUrl.openConnection(); 
  InputStream in = con.getInputStream(); 
  bitmap = BitmapFactory.decodeStream(in); 
  in.close(); 
 } catch (MalformedURLException e) 
 { 
  e.printStackTrace(); 
 } catch (IOException e) 
 { 
  e.printStackTrace(); 
 } 
 return bitmap; 
}

public Bitmap getHttpBitmap(String url) 
{ 
 Bitmap bitmap = null; 
 try 
 { 
  URL pictureUrl = new URL(url); 
  HttpURLConnection con = (HttpURLConnection) pictureUrl.openConnection(); 
  InputStream in = con.getInputStream(); 
  bitmap = BitmapFactory.decodeStream(in); 
  in.close(); 
 } catch (MalformedURLException e) 
 { 
  e.printStackTrace(); 
 } catch (IOException e) 
 { 
  e.printStackTrace(); 
 } 
 return bitmap; 
}

public void savePicture(Bitmap bitmap) 
{ 
 if (Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) 
 { 
 try 
 { 
 File sdcardDir = Environment 
 .getExternalStorageDirectory(); 
 Time t = new Time(); 
 t.setToNow();
 String filename = sdcardDir.getCanonicalPath() 
 + "/DCIM/camera" 
 + String.format( 
 "/ReeCamdddddd.jpg", 
 t.year, t.month + 1, t.monthDay, 
 t.hour, t.minute, t.second); 
 File file = new File(filename); 
 FileOutputStream out = new FileOutputStream(file); 
 bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out); 
 out.flush(); 
 out.close(); 
 } catch (FileNotFoundException e) 
 { 
 e.printStackTrace(); 
 } catch (IOException e) 
 { 
 e.printStackTrace(); 
 }
 } 
}