Reading OTP automatically on Android

android server one-time-password

10,689

Please use this code Create the SMS reader Broadcast receiver

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().replaceAll("\\D", "");

                //message = message.substring(0, message.length()-1);
                Log.i("SmsReceiver", "senderNum: " + senderNum + "; message: " + message);

                Intent myIntent = new Intent("otp");
                myIntent.putExtra("message", message);
                myIntent.putExtra("number", senderNum);
                LocalBroadcastManager.getInstance(context).sendBroadcast(myIntent);
                // Show Alert

            } // end for loop
        } // bundle is null

    } catch (Exception e) {
        Log.e("SmsReceiver", "Exception smsReceiver" + e);

    }
}
}

Declare class in manifest

 <receiver android:name=".receiver.IncomingSms">
        <intent-filter>
            <action android:name="android.provider.Telephony.SMS_RECEIVED" />
        </intent-filter>
    </receiver>

Permission in Manifest

<uses-permission android:name="android.permission.RECEIVE_SMS" />
<uses-permission android:name="android.permission.READ_SMS" />
<uses-permission android:name="android.permission.SEND_SMS" />

Activity in which you want to fetch the SMS.

@Override
public void onResume() {
    LocalBroadcastManager.getInstance(this).registerReceiver(receiver, new IntentFilter("otp"));
    super.onResume();
}
@Override
public void onPause() {
    super.onPause();
    LocalBroadcastManager.getInstance(this).unregisterReceiver(receiver);
}
private BroadcastReceiver receiver = new BroadcastReceiver() {
    @Override
    public void onReceive(Context context, Intent intent) {
        if (intent.getAction().equalsIgnoreCase("otp")) {
            final String message = intent.getStringExtra("message");
            // message is the fetching OTP
        }
    }
};

10,689

Steve Vinoski

Erlang, distributed systems, Yaws, Emacs, C++

Updated on June 04, 2022

Comments

Steve Vinoski almost 2 years

I am working on an Android App, in which server sends an OTP and the user needs to enter this OTP in the App, to SignUp for my App, What I want is, that my App should be able to automatically read the OTP sent by the server. .I am trying to implement auto detect OTP to edit text when OTP is received, I tried but nothing hapening any please help me to find out the error

Readsms.class

public class ReadSms extends BroadcastReceiver{

    @Override
    public void onReceive(Context context, Intent 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();

                    try
                    {

                        if (senderNum.equals("AZ-PSDSSL"))
                        {

                         Otp Sms = new Otp();
                            Sms.recivedSms(message );
                        }
                    } catch(Exception e){}
                }
            }

        } catch (Exception e) {}
    }

}

Otp.class

class Otp extends Activity {


    TextView otp;
    protected void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_otp);
         otp=findViewById(R.id.otpid);

    }
    public void recivedSms(String message)
    {
        try
        {
            otp.setText(message);
            Toast.makeText(getApplicationContext(),message,Toast.LENGTH_SHORT).show();


        }
        catch (Exception e)
        {
        }
    }
}

OTPActivity.java

if (checkAndRequestPermissions()) {
            // carry on the normal flow, as the case of  permissions  granted.
        }
 private  boolean checkAndRequestPermissions() {
        int permissionSendMessage = ContextCompat.checkSelfPermission(this,
                Manifest.permission.SEND_SMS);

        int receiveSMS = ContextCompat.checkSelfPermission(this,
                Manifest.permission.RECEIVE_SMS);

        int readSMS = ContextCompat.checkSelfPermission(this,
                Manifest.permission.READ_SMS);
        List<String> listPermissionsNeeded = new ArrayList<>();

        if (receiveSMS != PackageManager.PERMISSION_GRANTED) {
            listPermissionsNeeded.add(Manifest.permission.RECEIVE_MMS);
        }
        if (readSMS != PackageManager.PERMISSION_GRANTED) {
            listPermissionsNeeded.add(Manifest.permission.READ_SMS);
        }
        if (permissionSendMessage != PackageManager.PERMISSION_GRANTED) {
            listPermissionsNeeded.add(Manifest.permission.SEND_SMS);
        }
        if (!listPermissionsNeeded.isEmpty()) {
            ActivityCompat.requestPermissions(this,
                    listPermissionsNeeded.toArray(new String[listPermissionsNeeded.size()]),
                    REQUEST_ID_MULTIPLE_PERMISSIONS);
            return false;
        }
        return true;
    }

Manifest

<uses-permission android:name="android.permission.INTERNET" />

    <uses-permission android:name="android.permission.RECEIVE_SMS" />
    <uses-permission android:name="android.permission.READ_SMS" />
    <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
     <receiver android:name=".ReadSms" >
                <intent-filter android:priority="999" >
                    <action android:name="android.provider.Telephony.SMS_RECEIVED" />
                </intent-filter>
            </receiver>

Lucifer about 6 years

is it giving any error in logcat ?
Admin about 6 years

no error showing in logcat
Lucifer about 6 years

Otp Sms = new Otp(); here you are creating a new object of your activity, so it is not working as expected. What you need to do is , you need to implement Interface to achieve, what you want.
Admin about 6 years

how is it duplicate bro? Lucifer .. if you can Answer this question using that answer
Lucifer about 6 years

your question is duplication of that linked one, However your actual problem is, how to send data from broadcast receiver to your activity's edittext.
Admin about 6 years

hmm qstn maybe same but method code etc are dff

Admin about 6 years

where did i add sender number ?
Saurabh Vadhva about 6 years

Already i have fetched the sender number with this code myIntent.putExtra("number", senderNum); in receiver class.If you want to use that sender number then you can get that number using this final String sendernumber = intent.getStringExtra("number"); in receiver method.
Admin about 6 years

i tried but not wrokd.. "AZ-PSDSSL" i want this as sender name..
Saurabh Vadhva about 6 years

So you are unable to fetch the otp....right?
Saurabh Vadhva about 6 years

can you please share the OTP message over there?
Admin about 6 years

Your OTP is 06269
Saurabh Vadhva about 6 years

its working fine on my side.
Admin about 6 years

Log.i("SmsReceiver", "senderNum: " + senderNum + "; message: " + message); i cant find these in logcat , so that is not executing .. why?
Saurabh Vadhva about 6 years

have you enabled the permission?
Admin about 6 years

<uses-permission android:name="android.permission.INTERNET" /> <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" /> <uses-permission android:name="android.permission.RECEIVE_SMS" /> <uses-permission android:name="android.permission.READ_SMS" /> <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
Admin about 6 years

these prmssn are there, why the class is not execting.. i didnt ad the sender number as "AZ-PSDSSL" .. did you think it is the prb?
Saurabh Vadhva about 6 years

if your phone version is greater than 22 then you have to allow runtime permission.
Admin about 6 years

yes, it is oreo
Saurabh Vadhva about 6 years

then allow the runtime permission as well. or can allow the permission for particular application in settings as well...please allow that.
Admin about 6 years

i allowed at runtime. i think the class is not executing
Saurabh Vadhva about 6 years

but how is that possible.because it will always run your phone got a new sms.
Admin about 6 years

yes , then why it not woking .. even logcat shows nothing .. Log.i("SmsReceiver", "senderNum: " + senderNum + "; message: " + message);
Saurabh Vadhva about 6 years

please remove the application and then again install th application...may be its working.
Admin about 6 years

i dubugg frst exexting here private BroadcastReceiver receiver = new BroadcastReceiver() {...} //receiver=null
Admin about 6 years

why you add receiver android:name=".receiver.IncomingSms"> in manifest class name is IncomingSms
Saurabh Vadhva about 6 years

how to know that its returning null?
Saurabh Vadhva about 6 years

".receiver.IncomingSms" This is you package name where you create the Receiver.
Saurabh Vadhva about 6 years

It defines when you application receive any sms then this broadcast receiver call
Admin about 6 years

debugg mode value can shown in the left side,
Saurabh Vadhva about 6 years

is it working.?
Admin about 6 years

i create a new class named IncomingSms, <receiver android:name=".IncomingSms"> <intent-filter> <action android:name="android.provider.Telephony.SMS_RECEIVED" /> </intent-filter> </receiver>
Admin about 6 years

no, IncomingSms class is not calling
Saurabh Vadhva about 6 years

Still not calling???
Admin about 6 years

IncomingSms not calling
Saurabh Vadhva about 6 years

Please check the log...I think some error occured.
Admin about 6 years

i want check with adding sender number, where did i add ...
Admin about 6 years

no error there in log cat
Saurabh Vadhva about 6 years

Then i don't know where is the issue.because its working on my phone perfectly.
Admin about 6 years

mm still not working
Admin about 6 years

if you don't mind ,can you add your work in girhub or google drive?
Saurabh Vadhva about 6 years

Actually i have implement this in some projects and that project is private so can't share.
Saurabh Vadhva about 6 years

If you can share your code with me then i'll check it and may be i can resolved the issue.
Admin about 6 years

ok i will share
Saurabh Vadhva about 6 years

ok thanks..I'll wait
Admin about 6 years

drive.google.com/file/d/1R7W4ofjm1lPqZljECDPYhzwfqMqp5NPe/…
Admin about 6 years

I creat new prjct and those things, :)
Saurabh Vadhva about 6 years

ok I'll check..
Admin about 6 years

thankyou i will wait
Saurabh Vadhva about 6 years

done..I'll share you the code.
Admin about 6 years

really thankyou so much
Saurabh Vadhva about 6 years

Please check it over there...drive.google.com/open?id=1KXfPeFRN2dv4vBkK-LBoXDeP1V‌5eYbzo
Saurabh Vadhva about 6 years

Have you check my code??
Admin about 6 years

am checking hope it will work
Saurabh Vadhva about 6 years

ok..let me know.
Saurabh Vadhva about 6 years

Have you seen where you are taking mistakes???
Admin about 6 years

yes lots of mistakes ;)
Saurabh Vadhva about 6 years

Resolve your mistake and keep it up....
Admin about 6 years

ok now works charm because of you :)
Pramesh Bhalala almost 3 years

can you resend the resolved code of user9427911