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POAndroid - custom adapter for multiple choice listview
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copied!<p>i need to read the contact list in my android app and show it to the user with a multiple choice option. I've just seen the android example with the ListView.CHOICE_MODE_MULTIPLE but i need something different, i want a custm layout. I need to show bot the name and the number of the contact so i created my own adapter. First of all i made myown class to create a Contact:</p> <pre><code> //Contacts class public class Contatto { private String nome; //The name private String numero;//number public String getNome(){ //Get Name return nome; } public String getNumero(){ //Get number return numero; } public void setNome(String n){ //Set name this.nome = n; } public void setNumero(String n){ //Set number this.numero = n; } } </code></pre> <p>Then i use a cicle to get all the contatcs using a thread to notify the user that the app is working...</p> <pre><code>import java.util.ArrayList; import android.app.ListActivity; import android.app.ProgressDialog; import android.content.Context; import android.database.Cursor; import android.os.Bundle; import android.provider.ContactsContract; import android.util.Log; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.widget.ArrayAdapter; import android.widget.TextView; public class RecuperaRubrica extends ListActivity{ private ProgressDialog m_ProgressDialog = null; private ArrayList<Contatto> arrayContatti = null; private ContattoAdapter m_adapter; private Runnable viewContatti; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.recupera_rubrica); arrayContatti = new ArrayList<Contatto>(); this.m_adapter = new ContattoAdapter(this, R.layout.riga, arrayContatti); setListAdapter(this.m_adapter); viewContatti = new Runnable(){ @Override public void run() { getContatti(); } }; Thread thread = new Thread(null, viewContatti, "MagentoBackground"); thread.start(); m_ProgressDialog = ProgressDialog.show(RecuperaRubrica.this, "ATTENDI...", "Recupero contatti in corso ...", true); } private Runnable returnRes = new Runnable() { @Override public void run() { if(arrayContatti != null && arrayContatti.size() > 0){ m_adapter.notifyDataSetChanged(); for(int i=0;i<arrayContatti.size();i++) m_adapter.add(arrayContatti.get(i)); } m_ProgressDialog.dismiss(); m_adapter.notifyDataSetChanged(); } }; private void getContatti(){ try{ arrayContatti = new ArrayList<Contatto>(); Cursor cursor = getContentResolver().query(ContactsContract.Contacts.CONTENT_URI,null, null, null, null); //Cursore della rubrica while (cursor.moveToNext()) { //Entro nel ciclo se trovo almeno un contatto try{ //Recupero tutte le info dell'utente corrente String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID)); String name=cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME)); String hasPhone = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.HAS_PHONE_NUMBER)); //Se è disponibile almeno un numero di telefono lo recupero if (Integer.parseInt(hasPhone) > 0) { Cursor phones = getContentResolver().query( ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+ contactId, null, null); while (phones.moveToNext()) { String phoneNumber = phones.getString(phones.getColumnIndex( ContactsContract.CommonDataKinds.Phone.NUMBER)); phoneNumber = str_replace("-","",phoneNumber); phoneNumber = str_replace("+39","",phoneNumber); Contatto contatto = new Contatto(); contatto.setNome(name.trim()); contatto.setNumero(phoneNumber.trim()); if(!arrayContatti.contains(contatto)){ arrayContatti.add(contatto); } } phones.close(); //Chiudo la rubrica } }catch(Exception e){} } } catch (Exception e) { Log.e("BACKGROUND_PROC", e.getMessage()); } runOnUiThread(returnRes); } private class ContattoAdapter extends ArrayAdapter<Contatto> { private ArrayList<Contatto> items; public ContattoAdapter(Context context, int textViewResourceId, ArrayList<Contatto> items) { super(context, textViewResourceId, items); this.items = items; } @Override public View getView(int position, View convertView, ViewGroup parent) { View v = convertView; if (v == null) { LayoutInflater vi = (LayoutInflater)getSystemService(Context.LAYOUT_INFLATER_SERVICE); v = vi.inflate(R.layout.riga, null); } Contatto o = items.get(position); if (o != null) { TextView tt = (TextView) v.findViewById(R.id.NomeElenco); TextView bt = (TextView) v.findViewById(R.id.NumeroElenco); if (tt != null) { tt.setText(o.getNome()); } if(bt != null){ bt.setText(o.getNumero()); } } return v; } } public String str_replace (String search, String replace, String subject) { StringBuffer result = new StringBuffer (subject); int pos = 0; while (true) { pos = result.indexOf (search, pos); if (pos != -1) result.replace (pos, pos + search.length (), replace); else break; } return result.toString (); } } </code></pre> <p>this is the simple xml layout:</p> <pre><code><?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" > <ListView android:id="@+id/android:list" android:layout_width="fill_parent" android:layout_height="wrap_content" ></ListView> </LinearLayout> </code></pre> <p>this work but when i run the app if i check the first result then scroll the page also the first result in the new page is checked and so on...can you help me to understand why?</p>

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