[Android] After saving a media file, update media scanner

                    //update the media
                    MediaScannerConnection.scanFile(ExternalData.this, new String[] {f.toString()}, null, new MediaScannerConnection.OnScanCompletedListener() {
                        
                        @Override
                        public void onScanCompleted(String path, Uri uri) {
                            // TODO Auto-generated method stub
                            Toast t = Toast.makeText(ExternalData.this, "File has been updated", Toast.LENGTH_SHORT);
                            t.show();
                        }
                    });