How to Intigrate a PayUMoney in Android App

 PayUMoney Intigration in Android App

Today I am going to share about how you can integrate PayUMoney in your application to make flexible transactions.

To Download the full PayUmoney Full Project :- Click Here

Screen Shots-- 
(a.)

(b.)

Android Code --

(1.) activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout  xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.ridz.payumoneywebview.MainActivity"
    android:padding="20dip">

    <TableLayout
        android:id="@+id/formLayout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TableRow>
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="First Name"/>
            <EditText
                android:id="@+id/fname"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:layout_marginLeft="5dip"
                android:paddingLeft="5dip"
                android:text="Varun"/>
        </TableRow>


        <TableRow>
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Phone Number"/>
            <EditText
                android:id="@+id/pnumber"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:layout_marginLeft="5dip"
                android:paddingLeft="5dip"
                android:text="Enter Your Number"/>
        </TableRow>

        <TableRow>
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Email"/>
            <EditText
                android:id="@+id/emailAddress"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:layout_marginLeft="5dip"
                android:paddingLeft="5dip"
                android:text="admin@gmail.com"/>
        </TableRow>

        <TableRow>
            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Recharge Amt"/>
            <EditText
                android:id="@+id/rechargeAmt"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:layout_marginLeft="5dip"
                android:paddingLeft="5dip"
                android:text="50"
                android:inputType="number"/>
        </TableRow>

    </TableLayout>

    <Button
        android:id="@+id/Paynow"
        android:layout_width="100dip"
        android:layout_height="45dip"
        android:text="Pay Now"
        android:textColor="@android:color/white"
        android:background="@color/colorPrimary"
        android:layout_below="@+id/formLayout"
        android:layout_marginTop="20dip"
        android:layout_centerHorizontal="true"/>

</RelativeLayout>
  

(2.) MainActivity.class

import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;

public class MainActivity extends AppCompatActivity {

    EditText fname, pnumber, emailAddress, rechargeAmt;
    Button Paynow;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        fname        = (EditText)findViewById(R.id.fname);
        pnumber      = (EditText)findViewById(R.id.pnumber);
        emailAddress = (EditText)findViewById(R.id.emailAddress);
        rechargeAmt  = (EditText)findViewById(R.id.rechargeAmt);
        Paynow       = (Button)findViewById(R.id.Paynow);

        Paynow.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {

                String getFname = fname.getText().toString().trim();
                String getPhone = pnumber.getText().toString().trim();
                String getEmail = emailAddress.getText().toString().trim();
                String getAmt   = "10";//rechargeAmt.getText().toString().trim();

                Intent intent = new Intent(getApplicationContext(), PayMentGateWay.class);
                intent.putExtra("FIRST_NAME",getFname);
                intent.putExtra("PHONE_NUMBER",getPhone);
                intent.putExtra("EMAIL_ADDRESS",getEmail);
                intent.putExtra("RECHARGE_AMT",getAmt);
                startActivity(intent);

            }
        });

    }

}

(3.) PayMentGateWay.class

import android.annotation.SuppressLint;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.graphics.Bitmap;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Window;
import android.webkit.JavascriptInterface;
import android.webkit.WebView;
import android.webkit.WebViewClient;
import android.widget.Toast;

import org.json.JSONObject;

import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.Random;
import android.os.Handler;


public class PayMentGateWay extends Activity {

    private ArrayList<String> post_val = new ArrayList<String>();
    private String post_Data="";
    WebView webView ;
    final Activity activity = this;
    private String tag = "PayMentGateWay";
    private String hash,hashSequence;
    ProgressDialog progressDialog ;

//    String merchant_key="zBxSQi"; // live
//    String salt="ZhraT96O"; // live

    String merchant_key="kYz2vV"; // test
    String salt="zhoXe53j"; // test
String action1 ="";
    String base_url="https://test.payu.in";
     //https://secure.payu.in
    //String base_url="https://secure.payu.in";//
    int error=0;
    String hashString="";
    Map<String,String> params;
    String txnid ="";

    String SUCCESS_URL = "https://www.payumoney.com/mobileapp/payumoney/success.php" ; // failed
    String FAILED_URL = "https://www.payumoney.com/mobileapp/payumoney/failure.php" ;

    Handler mHandler = new Handler();


    static String getFirstName, getNumber, getEmailAddress, getRechargeAmt;


    ProgressDialog pDialog ;

    @SuppressLint("JavascriptInterface") @Override
    protected void onCreate(Bundle savedInstanceState) {
        // TODO Auto-generated method stub
        super.onCreate(savedInstanceState);

        progressDialog = new ProgressDialog(activity);


        getWindow().requestFeature(Window.FEATURE_PROGRESS);
        webView = new WebView(this);
        setContentView(webView);

        Intent oIntent  = getIntent();

        getFirstName    = oIntent.getExtras().getString("FIRST_NAME");
        getNumber       = oIntent.getExtras().getString("PHONE_NUMBER");
        getEmailAddress = oIntent.getExtras().getString("EMAIL_ADDRESS");
        getRechargeAmt  = oIntent.getExtras().getString("RECHARGE_AMT");



        //post_val = getIntent().getStringArrayListExtra("post_val");
        //Log.d(tag, "post_val: "+post_val);
        params= new HashMap<String,String>();
        params.put("key", merchant_key);

        params.put("amount", getRechargeAmt);
        params.put("firstname", getFirstName);
        params.put("email", getEmailAddress);
        params.put("phone", getNumber);
        params.put("productinfo", "Recharge Wallet");
        params.put("surl", SUCCESS_URL);
        params.put("furl", FAILED_URL);
        params.put("service_provider", "payu_paisa");
        params.put("lastname", "");
        params.put("address1", "");
        params.put("address2", "");
        params.put("city", "");
        params.put("state", "");
        params.put("country", "");
        params.put("zipcode", "");
        params.put("udf1", "");
        params.put("udf2", "");
        params.put("udf3", "");
        params.put("udf4", "");
        params.put("udf5", "");
        params.put("pg", "");

/*for(int i = 0;i<post_val.size();){
params.put(post_val.get(i), post_val.get(i+1));

i+=2;
}*/


        if(empty(params.get("txnid"))){
            Random rand = new Random();
            String rndm = Integer.toString(rand.nextInt())+(System.currentTimeMillis() / 1000L);
            txnid=hashCal("SHA-256",rndm).substring(0,20);
            params.put("txnid", txnid);
        }
        else
            txnid=params.get("txnid");
        //String udf2 = txnid;
        String txn="abcd";
        hash="";
        String hashSequence = "key|txnid|amount|productinfo|firstname|email|udf1|udf2|udf3|udf4|udf5|udf6|udf7|udf8|udf9|udf10";
        if(empty(params.get("hash")) && params.size()>0)
        {
            if( empty(params.get("key"))
                    || empty(params.get("txnid"))
                    || empty(params.get("amount"))
                    || empty(params.get("firstname"))
                    || empty(params.get("email"))
                    || empty(params.get("phone"))
                    || empty(params.get("productinfo"))
                    || empty(params.get("surl"))
                    || empty(params.get("furl"))
                    || empty(params.get("service_provider"))

                    ){
                error=1;
            }
            else{
                String[] hashVarSeq=hashSequence.split("\\|");

                for(String part : hashVarSeq)
                {
                    hashString= (empty(params.get(part)))?hashString.concat(""):hashString.concat(params.get(part));
                    hashString=hashString.concat("|");
                }
                hashString=hashString.concat(salt);


                hash=hashCal("SHA-512",hashString);
                action1=base_url.concat("/_payment");
            }
        }
        else if(!empty(params.get("hash")))
        {
            hash=params.get("hash");
            action1=base_url.concat("/_payment");
        }

        webView.setWebViewClient(new MyWebViewClient(){

            public void onPageFinished(WebView view, final String url) {
                progressDialog.dismiss();
            }

            public void onPageStarted(WebView view, String url, Bitmap favicon) {
                //make sure dialog is showing
                if(! progressDialog.isShowing()){
                    progressDialog.show();
                }
            }


/*@Override
public void onReceivedError(WebView view, int errorCode,
String description, String failingUrl) {
// TODO Auto-generated method stub
Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show();
}

@Override
public void onReceivedSslError(WebView view,
SslErrorHandler handler, SslError error) {
// TODO Auto-generated method stub
Toast.makeText(activity, "SslError! " +  error, Toast.LENGTH_SHORT).show();
handler.proceed();
}

@Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
// TODO Auto-generated method stub
Toast.makeText(activity, "Page Started! " + url, Toast.LENGTH_SHORT).show();
if(url.startsWith(SUCCESS_URL)){
Toast

.makeText(activity, "Payment Successful! " + url, Toast.LENGTH_SHORT).show();
Intent intent = new Intent(PayMentGateWay.this, MainActivity.class);
   intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP |Intent.FLAG_ACTIVITY_SINGLE_TOP);
   startActivity(intent);
   finish();
   return false;
}else if(url.startsWith(FAILED_URL)){
Toast.makeText(activity, "Payment Failed! " + url, Toast.LENGTH_SHORT).show();
   return false;
}else if(url.startsWith("http")){
return true;
}
//return super.shouldOverrideUrlLoading(view, url);
return false;
}*/


        });


        webView.setVisibility(0);
        webView.getSettings().setBuiltInZoomControls(true);
        webView.getSettings().setCacheMode(2);
        webView.getSettings().setDomStorageEnabled(true);
        webView.clearHistory();
        webView.clearCache(true);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.getSettings().setSupportZoom(true);
        webView.getSettings().setUseWideViewPort(false);
        webView.getSettings().setLoadWithOverviewMode(false);

        //webView.addJavascriptInterface(new PayUJavaScriptInterface(getApplicationContext()), "PayUMoney");
        webView.addJavascriptInterface(new PayUJavaScriptInterface(), "PayUMoney");
        Map<String, String> mapParams = new HashMap<String, String>();
        mapParams.put("key",merchant_key);
        mapParams.put("hash",PayMentGateWay.this.hash);
        mapParams.put("txnid",(empty(PayMentGateWay.this.params.get("txnid"))) ? "" : PayMentGateWay.this.params.get("txnid"));
        Log.d(tag, "txnid: "+PayMentGateWay.this.params.get("txnid"));
        mapParams.put("service_provider","payu_paisa");

        mapParams.put("amount",(empty(PayMentGateWay.this.params.get("amount"))) ? "" : PayMentGateWay.this.params.get("amount"));
        mapParams.put("firstname",(empty(PayMentGateWay.this.params.get("firstname"))) ? "" : PayMentGateWay.this.params.get("firstname"));
        mapParams.put("email",(empty(PayMentGateWay.this.params.get("email"))) ? "" : PayMentGateWay.this.params.get("email"));
        mapParams.put("phone",(empty(PayMentGateWay.this.params.get("phone"))) ? "" : PayMentGateWay.this.params.get("phone"));

        mapParams.put("productinfo",(empty(PayMentGateWay.this.params.get("productinfo"))) ? "" : PayMentGateWay.this.params.get("productinfo"));
        mapParams.put("surl",(empty(PayMentGateWay.this.params.get("surl"))) ? "" : PayMentGateWay.this.params.get("surl"));
        mapParams.put("furl",(empty(PayMentGateWay.this.params.get("furl"))) ? "" : PayMentGateWay.this.params.get("furl"));
        mapParams.put("lastname",(empty(PayMentGateWay.this.params.get("lastname"))) ? "" : PayMentGateWay.this.params.get("lastname"));

        mapParams.put("address1",(empty(PayMentGateWay.this.params.get("address1"))) ? "" : PayMentGateWay.this.params.get("address1"));
        mapParams.put("address2",(empty(PayMentGateWay.this.params.get("address2"))) ? "" : PayMentGateWay.this.params.get("address2"));
        mapParams.put("city",(empty(PayMentGateWay.this.params.get("city"))) ? "" : PayMentGateWay.this.params.get("city"));
        mapParams.put("state",(empty(PayMentGateWay.this.params.get("state"))) ? "" : PayMentGateWay.this.params.get("state"));

        mapParams.put("country",(empty(PayMentGateWay.this.params.get("country"))) ? "" : PayMentGateWay.this.params.get("country"));
        mapParams.put("zipcode",(empty(PayMentGateWay.this.params.get("zipcode"))) ? "" : PayMentGateWay.this.params.get("zipcode"));
        mapParams.put("udf1",(empty(PayMentGateWay.this.params.get("udf1"))) ? "" : PayMentGateWay.this.params.get("udf1"));
        mapParams.put("udf2",(empty(PayMentGateWay.this.params.get("udf2"))) ? "" : PayMentGateWay.this.params.get("udf2"));

        mapParams.put("udf3",(empty(PayMentGateWay.this.params.get("udf3"))) ? "" : PayMentGateWay.this.params.get("udf3"));
        mapParams.put("udf4",(empty(PayMentGateWay.this.params.get("udf4"))) ? "" : PayMentGateWay.this.params.get("udf4"));
        mapParams.put("udf5",(empty(PayMentGateWay.this.params.get("udf5"))) ? "" : PayMentGateWay.this.params.get("udf5"));
        mapParams.put("pg",(empty(PayMentGateWay.this.params.get("pg"))) ? "" : PayMentGateWay.this.params.get("pg"));
        webview_ClientPost(webView, action1, mapParams.entrySet());

    }

/*public class PayUJavaScriptInterface {

@JavascriptInterface
        public void success(long id, final String paymentId) {
            mHandler.post(new Runnable() {
                public void run() {
                    mHandler = null;

                    new PostRechargeData().execute();

            Toast.makeText(getApplicationContext(),"Successfully payment\n redirect from PayUJavaScriptInterface" ,Toast.LENGTH_LONG).show();

                }
            });
        }
}*/


    private final class PayUJavaScriptInterface {

        PayUJavaScriptInterface() {
        }

        /**
         * This is not called on the UI thread. Post a runnable to invoke
         * loadUrl on the UI thread.
         */
        @JavascriptInterface
        public void success(long id, final String paymentId) {
            mHandler.post(new Runnable() {
                public void run() {
                    mHandler = null;

                   /*Intent intent = new Intent();
                   intent.putExtra(Constants.RESULT, "success");
                   intent.putExtra(Constants.PAYMENT_ID, paymentId);
                   setResult(RESULT_OK, intent);
                   finish();*/
                   // new PostRechargeData().execute();
                    Intent intent=new Intent(PayMentGateWay.this,MainActivity.class);
                    intent.putExtra("test",getFirstName);
                    startActivity(intent);

                    Toast.makeText(getApplicationContext(), "Successfully payment", Toast.LENGTH_LONG).show();

                }
            });
        }

        @JavascriptInterface
        public void failure(final String id, String error) {
            mHandler.post(new Runnable() {
                @Override
                public void run() {
                    //cancelPayment();
                    Toast.makeText(getApplicationContext(),"Cancel payment" ,Toast.LENGTH_LONG).show();
                }
            });
        }

        @JavascriptInterface
        public void failure() {
            failure("");
        }

        @JavascriptInterface
        public void failure(final String params) {
            mHandler.post(new Runnable() {
                @Override
                public void run() {

                   /*Intent intent = new Intent();
                   intent.putExtra(Constants.RESULT, params);
                   setResult(RESULT_CANCELED, intent);
                   finish();*/
                    Toast.makeText(getApplicationContext(),"Failed payment" ,Toast.LENGTH_LONG).show();
                }
            });
        }

    }


    public void webview_ClientPost(WebView webView, String url, Collection< Map.Entry<String, String>> postData){
        StringBuilder sb = new StringBuilder();

        sb.append("<html><head></head>");
        sb.append("<body onload='form1.submit()'>");
        sb.append(String.format("<form id='form1' action='%s' method='%s'>", url, "post"));
        for (Map.Entry<String, String> item : postData) {
            sb.append(String.format("<input name='%s' type='hidden' value='%s' />", item.getKey(), item.getValue()));
        }
        sb.append("</form></body></html>");
        Log.d(tag, "webview_ClientPost called");

        //setup and load the progress bar
        progressDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);
        progressDialog.setMessage("Loading. Please wait...");
        webView.loadData(sb.toString(), "text/html", "utf-8");
    }


    public void success(long id, final String paymentId) {

        mHandler.post(new Runnable() {
            public void run() {
                mHandler = null;

              //  new PostRechargeData().execute();

                Toast.makeText(getApplicationContext(),"Successfully payment\n redirect from Success Function" ,Toast.LENGTH_LONG).show();

            }
        });
    }


    public boolean empty(String s)
    {
        if(s== null || s.trim().equals(""))
            return true;
        else
            return false;
    }

    public String hashCal(String type,String str){
        byte[] hashseq=str.getBytes();
        StringBuffer hexString = new StringBuffer();
        try{
            MessageDigest algorithm = MessageDigest.getInstance(type);
            algorithm.reset();
            algorithm.update(hashseq);
            byte messageDigest[] = algorithm.digest();



            for (int i=0;i<messageDigest.length;i++) {
                String hex=Integer.toHexString(0xFF & messageDigest[i]);
                if(hex.length()==1) hexString.append("0");
                hexString.append(hex);
            }

        }catch(NoSuchAlgorithmException nsae){ }

        return hexString.toString();


    }

    //String SUCCESS_URL = "https://pay.in/sccussful" ; // failed
    //String FAILED_URL = "https://pay.in/failed" ;
    //override the override loading method for the webview client
    private class MyWebViewClient extends WebViewClient {

        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {

        /*if(url.contains("response.php") || url.equalsIgnoreCase(SUCCESS_URL)){

        new PostRechargeData().execute();

        Toast.makeText(getApplicationContext(),"Successfully payment\n redirect from webview" ,Toast.LENGTH_LONG).show();

                return false;
        }else  */if(url.startsWith("http")){
                //Toast.makeText(getApplicationContext(),url ,Toast.LENGTH_LONG).show();
                progressDialog.show();
                view.loadUrl(url);
                System.out.println("myresult "+url);
                //return true;
            } else {
                return false;
            }

            return true;
        }
    }

    /******************************************* send record to back end ******************************************/
    /*class PostRechargeData extends AsyncTask<String, String, String>
    {
        @Override
        protected void onPreExecute()
        {
            super.onPreExecute();
            pDialog = new ProgressDialog(PayMentGateWay.this);
            pDialog.setMessage("Please wait...");
            pDialog.setIndeterminate(false);
            pDialog.setCancelable(false);
            pDialog.show();

        }
        protected String doInBackground(String... args)
        {
            String strStatus = null;
            ProfileSessionManager ProSessionManager = new ProfileSessionManager(PayMentGateWay.this);

            String getUserid   = ProSessionManager.getSpeculatorId();
            String getSpeculationId  = "0";
            String rechargeAmt = getRechargeAmt;
            String postAction = "1";
            //http://speculometer.com/webService/stockApp/speculationMoneyreports.php?
            //access_token=ISOFTINCstockAppCheckDevelop&speculator=1&speculation=&amount=1000&action=1
            ServiceHandler sh = new ServiceHandler();
            String upLoadServerUri = ServiceList.payment_money_url+"speculator="+getUserid+"&speculation="+getSpeculationId+"&amount="+rechargeAmt+"&action="+postAction;

            try{
                String jsonStr = sh.makeServiceCall(upLoadServerUri, ServiceHandler.POST);
                JSONObject jsonObj  = new JSONObject(jsonStr);

                JSONObject jobjDoc = jsonObj.optJSONObject("document");
                JSONObject jobjRes = jobjDoc.optJSONObject("response");

                strStatus   = jobjRes.getString("status");
                //strMessage  = jobjRes.getString("message");
                String strUserId = jobjRes.getString("user_id");
            } catch (Exception e) {
                e.printStackTrace();
            }

            return strStatus;
        }

        protected void onPostExecute(final String strStatus)
        {

            runOnUiThread(new Runnable()
            {
                public void run()
                {
                    pDialog.dismiss();
                    if(strStatus != null && strStatus.equalsIgnoreCase("0")){
                        Toast.makeText(getApplicationContext(),"Your recharge amount not added in wallet." ,Toast.LENGTH_LONG).show();
                    }else if(strStatus != null && strStatus.equalsIgnoreCase("1")){

                        Toast.makeText(getApplicationContext(),"Your recharge amount added in wallet." ,Toast.LENGTH_LONG).show();
                    }
                    Intent intent = new Intent(activity, MainActivity.class);
                    startActivity(intent);
                }
            });

        }
    }*/

    /******************************************* closed send record to back end ************************************/


}