Android SMS Listener for specific number

Question

I am writing an application that communicates with other devices through SMSs.

I was able to implement a listener for received SMSs. The thing is that it is listening to all received messages. I would like to only listen received SMSs from a specific number.

Here is my onReceive method.

@Override
public void onReceive(Context context, Intent intent) {
    // TODO Auto-generated method stub
    Bundle bundle = intent.getExtras();

    Object messages[] = (Object[]) bundle.get("pdus");
    SmsMessage smsMessage[] = new SmsMessage[messages.length];
    for (int n = 0; n < messages.length; n++) {
        smsMessage[n] = SmsMessage.createFromPdu((byte[]) messages[n]);
    }

    // show first message
    Toast toast = Toast.makeText(context,
                  "Received SMS: " + smsMessage[0].getMessageBody(),
                  Toast.LENGTH_LONG);
    toast.show();
}

Answer 1

There is no way AFAIK to filter for a number just by the intent.

What you CAN do is to get phone number in the Receiver like this:

SMSMesssage msg=SMSMessage.creatFromPdu(pdu)
String origination_no = msg.getDisplayOriginatingAddress()

Answer 2

Use PhoneNumberUtils.compare() to compare phone numbers as there are different phone number formats (+4XXXX, 0XXXX...). You can get the sender via getOriginatingAddress().

public class SmsReceiver extends BroadcastReceiver {

    private static final String SMS_RECEIVED = "android.provider.Telephony.SMS_RECEIVED";

    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equals(SMS_RECEIVED)) {
            Bundle bundle = intent.getExtras();
            if (bundle != null) {
                // get sms objects
                Object[] pdus = (Object[]) bundle.get("pdus");
                if (pdus.length == 0) {
                    return;
                }
                // large message might be broken into many
                SmsMessage[] messages = new SmsMessage[pdus.length];
                StringBuilder sb = new StringBuilder();
                for (int i = 0; i < pdus.length; i++) {
                    messages[i] = SmsMessage.createFromPdu((byte[]) pdus[i]);
                    sb.append(messages[i].getMessageBody());
                }
                String sender = messages[0].getOriginatingAddress();
                String message = sb.toString();
                // apply sms filter
                if (PhoneNumberUtils.compare("your number", sender)) {
                    // do something
                }
            }
        }
    }

Answer 3

Use this

for(int i=0; i<smsMessage.length; i++) {
    smsMessage[i] = SmsMessage.createFromPdu((byte[])pdus[i]);
    String msg_from = msgs[i].getOriginatingAddress();
    Log.v("msg_from >>",msg_from);     
    if(msg_from.equals("1234556"))
    {
        //do you stuff here.
    }                    
}