OTP (token) should be automatically read from the message

Question

I am working on an Android App, in which the 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

Answer 1

**activity_main.xml**




    





**MainActivity.java**
import android.content.BroadcastReceiver;
import android.content.IntentFilter;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {

    private BroadcastReceiver broadcastReceiver;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        broadcastReceiver =new MyBroadcastReceiver();
    }

@Override
    protected void onStart()
{
    super.onStart();
    IntentFilter intentFilter=new IntentFilter("android.provider.Telephony.SMS_RECEIVED");
    registerReceiver(broadcastReceiver,intentFilter);
}
@Override
    protected void onStop()
{
    super.onStop();
    unregisterReceiver(broadcastReceiver);
}

}


**MyBroadcastReceiver.java**

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.widget.Toast;

/**
 * Created by mukundwn on 12/02/18.
 */

public class MyBroadcastReceiver extends BroadcastReceiver {


    @Override
    public void onReceive(Context context, Intent intent) {
        Toast.makeText(context,"hello received an sms",Toast.LENGTH_SHORT).show();
    }
}


**Manifest.xml**