communication between two device using sms

Question

I want my program to be able to receive sms from a special number(\"+9856874236\").

I want application to be recive SMS ,if the SMS is contain \"enable wifi\" ,then

Answer 1

In your BroadcastReceiver use following code,

Uri uri = Uri.parse("content://sms/");

ContentResolver contentResolver = getContentResolver();

String phoneNumber = "+9856874236";
String sms = "address='"+ phoneNumber + "'";
Cursor cursor = contentResolver.query(uri, new String[] { "_id", "body" }, "read = 0 and address='" + sms, null,   null);

if ( cursor.getCount() > 0 ) 
{
    // perform action to start Wifi Connection

}

Also in AndroidManifest.xml file you need to set Priority for reading SMS by your application as follows,

<receiver android:name="com.example.sms.TextMessageReceiver" >
    <intent-filter android:priority="1000">
        <action android:name="android.provider.Telephony.SMS_RECEIVED" />
    </intent-filter>
</receiver>

Answer 2

To intercept the SMS as early as possible I use the following code:

public class Communicator extends Service {

private final String TAG = this.getClass().getSimpleName();

private SMSReceiver mSMSreceiver;
private IntentFilter mIntentFilter;

@Override
public void onCreate()
{
    super.onCreate();


    Log.i(TAG, "Communicator started");
    //SMS event receiver
    mSMSreceiver = new SMSReceiver();
    mIntentFilter = new IntentFilter();
    mIntentFilter.addAction("android.provider.Telephony.SMS_RECEIVED");
    mIntentFilter.setPriority(2147483647);
    registerReceiver(mSMSreceiver, mIntentFilter);

    Intent intent = new Intent("android.provider.Telephony.SMS_RECEIVED");
    List<ResolveInfo> infos = getPackageManager().queryBroadcastReceivers(intent, 0);
    for (ResolveInfo info : infos) {
        Log.i(TAG, "Receiver name:" + info.activityInfo.name + "; priority=" + info.priority);
    }
}

@Override
public void onDestroy()
{
    super.onDestroy();

    // Unregister the SMS receiver
    unregisterReceiver(mSMSreceiver);
}

@Override
public IBinder onBind(Intent arg0) {
    return null;
}

private class SMSReceiver extends BroadcastReceiver
{
    private final String TAG = this.getClass().getSimpleName();

    @Override
    public void onReceive(Context context, Intent intent)
    {
        Bundle extras = intent.getExtras();


        String strMessage = "";

        if ( extras != null )
        {
            Object[] smsextras = (Object[]) extras.get( "pdus" );

            for ( int i = 0; i < smsextras.length; i++ )
            {
                SmsMessage smsmsg = SmsMessage.createFromPdu((byte[])smsextras[i]);

                String strMsgBody = smsmsg.getMessageBody().toString();
                String strMsgSrc = smsmsg.getOriginatingAddress();

                strMessage += "SMS from " + strMsgSrc + " : " + strMsgBody;                    

                Log.i(TAG, strMessage);

                if (strMsgBody.contains("SomeText")) {


                            // perform code

                    this.abortBroadcast();

                }
            }



        }

    }

}
}

Remember to register the service in manifest:

<service android:name="yourpackage.Communicator" />

Now in onCreate and onDestroy start and stop the service:

startService(new Intent(this, Communicator.class));
stopService(new Intent(this, Communicator.class));