comment compresser des Uri de l'image bitmap

ce code me montrer une erreur je veux ajouter l'image sélectionnée enregistrer dans la base de données et retrive j'ai suivi ce 2 tutoriels http://nizaqatali.wordpress.com/2011/06/21/android-dialog-select-image-from-gallery/ et ce http://androidhub4you.blogspot.com/2012/09/hello-friends-today-i-am-going-to-share.html
mais ce problème est arrivé message d'erreur"La méthode compresser(Bitmap.CompressFormat, int, ByteArrayOutputStream) n'est pas défini pour le type d'Uri"

         import org.apache.http.NameValuePair;
import org.apache.http.message.BasicNameValuePair;
import android.app.Activity;
import android.content.Intent;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
public class SQLiteDemoActivity extends Activity {
final int SELECT_PHOTO = 0;
ArrayList<Contact> imageArry = new ArrayList<Contact>();
ContactImageAdapter adapter;
Button BrowseButton;
DataBaseHandler db;
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
db = new DataBaseHandler(this);
//get image from drawable
//Bitmap image = BitmapFactory.decodeResource(getResources(),R.drawable.facebook);
BrowseButton=(Button)findViewById(R.id.BrowseButton);
BrowseButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
//TODO Auto-generated method stub
//in onCreate or any event where your want the user to
//select a file
Intent photoPickerIntent = new Intent(Intent.ACTION_PICK);
photoPickerIntent.setType("image/*");
startActivityForResult(photoPickerIntent, SELECT_PHOTO);
}
});
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent      
imageReturnedIntent) {
super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
switch(requestCode) {
case SELECT_PHOTO:
if(resultCode == RESULT_OK){
Uri selectedImage = imageReturnedIntent.getData();
//convert bitmap to byte
ByteArrayOutputStream stream = new ByteArrayOutputStream();
selectedImage.compress(Bitmap.CompressFormat.JPEG, 100, stream);
byte imageInByte[] = stream.toByteArray();
/**
* CRUD Operations
* */
//Inserting Contacts
Log.d("Insert: ", "Inserting ..");
db.addContact(new Contact("FaceBook", imageInByte));
//display main List view bcard and contact name
//Reading all contacts from database
List<Contact> contacts = db.getAllContacts();
for (Contact cn : contacts) {
String log = "ID:" + cn.getID() + " Name: " + cn.getName()
+ " ,Image: " + cn.getImage();
//Writing Contacts to log
Log.d("Result: ", log);
//add contacts data in arrayList
imageArry.add(cn);
}
adapter = new ContactImageAdapter(this, R.layout.screen_list,
imageArry);
ListView dataList = (ListView) findViewById(R.id.list);
dataList.setAdapter(adapter);
}
}
}
}

OriginalL'auteur Smart Guy | 2012-12-13