Impossible d'obtenir tous les utilisateurs dans asmack

Question

Je développe l'application de chat sur la base Android sur asmack lib. Je crée 1 utilisateur et ajouter 3 amis dans la liste d'amis. Lorsque j'utilise liste à la liste de contacts d'affichage. Je ne peux pas tous les utilisateurs dans la liste de contacts, à seulement 1 utilisateur uniquement. Mon code ici:

    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);         
     setContentView(R.layout.tab_set);


     TextView textview = new TextView(this);    
     setContentView(textview);

     Roster roster = Controller.getInstance().connection.getRoster();
     Collection<RosterEntry> entries = roster.getEntries();

     for(RosterEntry r:entries)
     {
         textview.setText(r.getName());
     }

---

Merci pour votre réponse, il est très utile. J'ai encore une question. Comment afficher la liste d'amis comme ListView dans Android? J'essaie de le mettre dans le tableau, mais il fonctionne pas.

    public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);         
     setContentView(R.layout.tab_set);

     String buddy;

     Roster roster = Controller.getInstance().connection.getRoster();
     Collection<RosterEntry> entries = roster.getEntries();

     for(RosterEntry r:entries)
     {

         buddy = textview.getText() + r.getName();
         Controller.getInstance().values = new String[]{buddy};
     }
    ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
            android.R.layout.simple_list_item_1, Controller.getInstance().values);
    setListAdapter(adapter);

Answer 1

You are just having one buddy in your TextView because you are changing the text for each iteration.

Try something like textview.setText(textview.getText() + r.getName()); or add a new TextView for each buddy

Answer 2

This is my buddies list

public class BuddiesList extends Activity {
ListView list;
Roster roster;
static Buddy[] buddyList;

public void onCreate(Bundle b) {
    super.onCreate(b);
    setContentView(R.layout.buddies);

    roster = AsmackTestingActivity.xmpp.getRoster();
    ArrayList<Buddy> buddies = new ArrayList<Buddy>();
    Collection<RosterEntry> entries = roster.getEntries();
    buddyList = new Buddy[entries.size()]; 
    ProviderManager.getInstance().addIQProvider("vCard", "vcard-temp", new VCardProvider());
    Buddy bud = null;
    VCard card = null;
    int i = 0;
    for (RosterEntry entry:entries) {
        bud = new Buddy();
        card = new VCard();
        try {
            card.load(AsmackTestingActivity.xmpp, entry.getUser());
        } catch (Exception e) {
            e.printStackTrace();
        }

        bud.jid = entry.getUser();
        bud.name = card.getField("FN");
        if (bud.name == null)
            bud.name = bud.jid;
        buddies.add(bud);
        byte[] img = card.getAvatar();
        if (img != null) {
            int len = img.length;
            bud.img = BitmapFactory.decodeByteArray(img, 0, len);
        }
        buddyList[i++] = bud;
    }


    final BuddyAdapter adapter = new BuddyAdapter(this, buddies);
    list = (ListView) findViewById(R.id.buddiesList);
    list.setAdapter(adapter);
    list.setOnItemClickListener(new OnItemClickListener() {
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            Intent intent = new Intent(BuddiesList.this, AsmackChat.class);
            intent.putExtra("username", adapter.getItem(position).jid);
            startActivity(intent);
        }
    });
}

class BuddyAdapter extends ArrayAdapter<Buddy> {
    public BuddyAdapter(Context context, ArrayList<Buddy> items) {
        super(context, R.id.buddyName, items);
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parentView) {
        Buddy bud = getItem(position);
        ViewHolder holder = null;
        if (convertView == null) {
            convertView = getLayoutInflater().inflate(R.layout.buddy, null);

            holder = new ViewHolder();
            holder.name = (TextView) convertView.findViewById(R.id.buddyName);
            holder.thumb = (ImageView) convertView.findViewById(R.id.buddyThumb);
            convertView.setTag(holder);
        } else {
            holder = (ViewHolder) convertView.getTag();
        }

        holder.name.setText(bud.name);
        holder.thumb.setImageBitmap(bud.img);

        return convertView;
    }
}
class Buddy {
    String jid;
    String name;
    int status;
    Bitmap img;

}
class ViewHolder {
    ImageView thumb;
    TextView name;
}

Layout buddies.xml:

<?xml version="1.0" encoding="utf-8"?>
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/buddiesList"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >
</ListView>

And layout buddy.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:padding="5dp">
    <ImageView
        android:id="@+id/buddyThumb"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:paddingRight="5dp" />
    <TextView 
        android:id="@+id/buddyName"
        android:layout_toRightOf="@id/buddyThumb"
        android:layout_centerVertical="true"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textColor="#FFFFFFFF"/>
</RelativeLayout>