Question

I realized,there’re some questions here, but i think my code is really different from them (i’m a beginner) and i can’t understand their answers!

So i want to refresh my ListView everytime i receive a SMS, i tried to use cursor.requery(); and some methods which i found on google but it’s still not working.

This is my code :

public class SMSActivity extends Activity implements OnItemClickListener {

ArrayList<String> smsList = new ArrayList<String>();
// String ADDRESS[];
// int total = 0;

@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    ContentResolver cr = getContentResolver();
    Cursor cursor = cr.query(Uri.parse("content://sms/inbox"), null, null,
            null, null);

    int indexBody = cursor.getColumnIndex("body");
    int indexAddr = cursor.getColumnIndex("address");

    if (indexBody < 0 || !cursor.moveToFirst())
        return;

    smsList.clear();
    do {
        String str = "Sender : " + cursor.getString(indexAddr) + "\n"
                + cursor.getString(indexBody);
        smsList.add(str);
        // ADDRESS[total] = cursor.getString(indexAddr);
        // total++;
    } while (cursor.moveToNext());

    ListView lvSms = (ListView) findViewById(R.id.SMSList);
    lvSms.setAdapter(new ArrayAdapter<String>(this,
            android.R.layout.simple_list_item_1, smsList));

    // cursor.requery();
    lvSms.setOnItemClickListener(this);
}

EDITED :
And this is the Class where i extends it with BroadcastReceiver :

public class SMSReceiver extends BroadcastReceiver {

private static final int NOTIF_ID = 0;

@Override
public void onReceive(Context arg0, Intent arg1) {
    // TODO Auto-generated method stub

    Bundle bundle = arg1.getExtras();
    SmsMessage[] msgs = null;
    String str = "";
    if (bundle != null) {
        Object[] pdus = (Object[]) bundle.get("pdus");
        msgs = new SmsMessage[pdus.length];

        for (int i = 0; i < msgs.length; i++) {
            msgs[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
            str += "You Get New SMS from " + msgs[i].getOriginatingAddress();
            str += " :";                    str += msgs[i].getMessageBody().toString();
            str += "\n";

        Toast.makeText(arg0, str, Toast.LENGTH_SHORT).show();

        NotificationManager nm = (NotificationManager) arg0.getSystemService(Context.NOTIFICATION_SERVICE);

        String tickerText = str;

        Notification notif = new Notification(R.drawable.ic_launcher, tickerText, System.currentTimeMillis());

        notif.flags = Notification.FLAG_AUTO_CANCEL;

        String contentTitle = msgs[i].getOriginatingAddress();
        String contentText = msgs[i].getMessageBody().toString();

        Intent intent = new Intent(arg0, SMSReply.class);
        PendingIntent pi = PendingIntent.getActivity(arg0, 0, intent, 0);

        notif.setLatestEventInfo(arg0, contentTitle, contentText, pi);
        notif.defaults = Notification.DEFAULT_ALL;
        nm.notify(NOTIF_ID, notif);

        String tempSMS = msgs[i].getOriginatingAddress();
        Intent pass = new Intent();
        Bundle bundlePass = new Bundle();

        bundlePass.putString("key", tempSMS);
        pass.putExtras(bundlePass);
        }
    }
}

I don’t understand how to link those two Class so everytime the BroadcastReceiver works(new SMS come) my ListView will be updated(just like the SMS app in your phone)

Thanks All.

Answer 1

Define adapter as global public variable,

ArrayAdapter<String> adapter;

inside onCreate() assign it,

adapter=new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1, smsList));

in your BroadcastReceiver access the smsList and add to it the new sms,

then access your adapter this way,

adapter.notifyDataSetChanged();

this function will notify the adapter that smsList values have been changed and will update the list.