Android read SMS - http://androidexample.com/Incomming_SMS_Broadcast_Receiver_-_Android_Example/index.php?view=article_discription&aid=62&aaid=87

android_read_sms.java

public class IncomingSms extends BroadcastReceiver {
     
    // Get the object of SmsManager
    final SmsManager sms = SmsManager.getDefault();
     
    public void onReceive(Context context, Intent intent) {
     
        // Retrieves a map of extended data from the intent.
        final Bundle bundle = intent.getExtras();
 
        try {
             
            if (bundle != null) {
                 
                final Object[] pdusObj = (Object[]) bundle.get("pdus");
                 
                for (int i = 0; i < pdusObj.length; i++) {
                     
                    SmsMessage currentMessage = SmsMessage.createFromPdu((byte[]) pdusObj[i]);
                    String phoneNumber = currentMessage.getDisplayOriginatingAddress();
                     
                    String senderNum = phoneNumber;
                    String message = currentMessage.getDisplayMessageBody();
 
                    Log.i("SmsReceiver", "senderNum: "+ senderNum + "; message: " + message);
                     
 
                   // Show Alert
                    int duration = Toast.LENGTH_LONG;
                    Toast toast = Toast.makeText(context, 
                                 "senderNum: "+ senderNum + ", message: " + message, duration);
                    toast.show();
                     
                } // end for loop
              } // bundle is null
 
        } catch (Exception e) {
            Log.e("SmsReceiver", "Exception smsReceiver" +e);
             
        }
    }    
}