androidpayment-gatewaypayu

How to integrate PayU money Gateway in Android?


I am developing an Ecommerce app in which I want to integrate Payumoney payment gateway. Can someone help me with some procedure, link or tutorial, how to do so? Thanks.


Solution

  • I have done Perfectly :) :) You have to edit SuccessURL and FailureURL:

    Its Working for Me Perfectly.

    public class PayUMoneyActivity extends AppCompatActivity {
    
        /**
         * Adding WebView as setContentView
         */
        WebView webView;
    
        /**
         * Context for Activity
         */
        Context activity;
        /**
         * Order Id
         * To Request for Updating Payment Status if Payment Successfully Done
         */
        int mId; //Getting from Previous Activity
        /**
         * Required Fields
         */
        // Test Variables
        /*
        private String mMerchantKey = "FCyqqZ";
        private String mSalt = "sfBpGA8E";
        private String mBaseURL = "https://test.payu.in";
        */
    
        // Final Variables
        private String mMerchantKey = "Your Merchant Key";
        private String mSalt = "Salt";
        private String mBaseURL = "https://secure.payu.in";
    
    
        private String mAction = ""; // For Final URL
        private String mTXNId; // This will create below randomly
        private String mHash; // This will create below randomly
        private String mProductInfo = "Food Items"; //Passing String only
        private String mFirstName; // From Previous Activity
        private String mEmailId; // From Previous Activity
        private double mAmount; // From Previous Activity
        private String mPhone; // From Previous Activity
        private String mServiceProvider = "payu_paisa";
        private String mSuccessUrl = "your success URL";
        private String mFailedUrl = "Your Failure URL";
    
    
        boolean isFromOrder;
        /**
         * Handler
         */
        Handler mHandler = new Handler();
    
        /**
         * @param savedInstanceState
         */
        @SuppressLint({"AddJavascriptInterface", "SetJavaScriptEnabled"})
        @Override
        protected void onCreate(Bundle savedInstanceState) {
            getWindow().requestFeature(Window.FEATURE_PROGRESS);
            super.onCreate(savedInstanceState);
    
            /**
            * Setting WebView to Screen
            */
            setContentView(R.layout.activity_webview_for_payumoney);
    
            /**
             * Creating WebView
             */
            webView = (WebView) findViewById(R.id.payumoney_webview);
    
            /**
             * Context Variable
             */
            activity = getApplicationContext();
    
            /**
             * Actionbar Settings
             */
            Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
            setSupportActionBar(toolbar);
    
            ActionBar ab = getSupportActionBar();
            ab.setDisplayHomeAsUpEnabled(true);
            // enabling action bar app icon and behaving it as toggle button
            ab.setHomeButtonEnabled(true);
            ab.setTitle(getString(R.string.title_activity_online_payment));
    
            /**
             * Getting Intent Variables...
             */
            Bundle bundle = getIntent().getExtras();
            if (bundle != null) {
    
                mFirstName = bundle.getString("name");
                mEmailId = bundle.getString("email");
                mAmount = bundle.getDouble("amount");
                mPhone = bundle.getString("phone");
                mId = bundle.getInt("id");
                isFromOrder = bundle.getBoolean("isFromOrder");
    
                Log.i(TAG, "" + mFirstName + " : " + mEmailId + " : " + mAmount + " : " + mPhone);
    
                /**
                 * Creating Transaction Id
                 */
                Random rand = new Random();
                String randomString = Integer.toString(rand.nextInt()) + (System.currentTimeMillis() / 1000L);
                mTXNId = hashCal("SHA-256", randomString).substring(0, 20);
    
                mAmount = new BigDecimal(mAmount).setScale(0, RoundingMode.UP).intValue();
    
                /**
                 * Creating Hash Key
                 */
                mHash = hashCal("SHA-512", mMerchantKey + "|" +
                        mTXNId + "|" +
                        mAmount + "|" +
                        mProductInfo + "|" +
                        mFirstName + "|" +
                        mEmailId + "|||||||||||" +
                        mSalt);
    
                /**
                 * Final Action URL...
                 */
                mAction = mBaseURL.concat("/_payment");
    
                /**
                 * WebView Client
                 */
                webView.setWebViewClient(new WebViewClient() {
    
                    @Override
                    public void onReceivedError(WebView view, WebResourceRequest request, WebResourceError error) {
                        super.onReceivedError(view, request, error);
                        Toast.makeText(activity, "Oh no! " + error, Toast.LENGTH_SHORT).show();
                    }
    
                    @Override
                    public void onReceivedSslError(WebView view,
                                                   SslErrorHandler handler, SslError error) {
                        Toast.makeText(activity, "SSL Error! " + error, Toast.LENGTH_SHORT).show();
                        handler.proceed();
                    }
    
                    @Override
                    public boolean shouldOverrideUrlLoading(WebView view, String url) {
                        return super.shouldOverrideUrlLoading(view, url);
                    }
    
                    @Override
                    public void onPageFinished(WebView view, String url) {
    
                        if (url.equals(mSuccessUrl)) {
                            Intent intent = new Intent(PayUMoneyActivity.this, PaymentStatusActivity.class);
                            intent.putExtra("status", true);
                            intent.putExtra("transaction_id", mTXNId);
                            intent.putExtra("id", mId);
                            intent.putExtra("isFromOrder", isFromOrder);
                            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                            startActivity(intent);
                        } else if (url.equals(mFailedUrl)) {
                            Intent intent = new Intent(PayUMoneyActivity.this, PaymentStatusActivity.class);
                            intent.putExtra("status", false);
                            intent.putExtra("transaction_id", mTXNId);
                            intent.putExtra("id", mId);
                            intent.putExtra("isFromOrder", isFromOrder);
                            intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
                            startActivity(intent);
                        }
                        super.onPageFinished(view, url);
                    }
                });
    
                webView.setVisibility(View.VISIBLE);
                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(PayUMoneyActivity.this), "PayUMoney");
    
                /**
                 * Mapping Compulsory Key Value Pairs
                 */
                Map<String, String> mapParams = new HashMap<>();
    
                mapParams.put("key", mMerchantKey);
                mapParams.put("txnid", mTXNId);
                mapParams.put("amount", String.valueOf(mAmount));
                mapParams.put("productinfo", mProductInfo);
                mapParams.put("firstname", mFirstName);
                mapParams.put("email", mEmailId);
                mapParams.put("phone", mPhone);
                mapParams.put("surl", mSuccessUrl);
                mapParams.put("furl", mFailedUrl);
                mapParams.put("hash", mHash);
                mapParams.put("service_provider", mServiceProvider);
    
                webViewClientPost(webView, mAction, mapParams.entrySet());
            } else {
                Toast.makeText(activity, "Something went wrong, Try again.", Toast.LENGTH_LONG).show();
            }
        }
    
        /**
         * Posting Data on PayUMoney Site with Form
         *
         * @param webView
         * @param url
         * @param postData
         */
        public void webViewClientPost(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", "webViewClientPost called: " + sb.toString());
            webView.loadData(sb.toString(), "text/html", "utf-8");
        }
    
        /**
         * Hash Key Calculation
         *
         * @param type
         * @param str
         * @return
         */
        public String hashCal(String type, String str) {
            byte[] hashSequence = str.getBytes();
            StringBuffer hexString = new StringBuffer();
            try {
                MessageDigest algorithm = MessageDigest.getInstance(type);
                algorithm.reset();
                algorithm.update(hashSequence);
                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();
        }
    
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
            if(item.getItemId() == android.R.id.home) {
                onPressingBack();
            }
            return super.onOptionsItemSelected(item);
        }
    
        @Override
        public void onBackPressed() {
            onPressingBack();
        }
    
        /**
         * On Pressing Back
         * Giving Alert...
         */
        private void onPressingBack() {
    
            final Intent intent;
    
            if(isFromOrder)
                intent = new Intent(PayUMoneyActivity.this, ProductInCartList.class);
            else
                intent = new Intent(PayUMoneyActivity.this, MainActivity.class);
    
            intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
    
            AlertDialog.Builder alertDialog = new AlertDialog.Builder(PayUMoneyActivity.this);
    
            // Setting Dialog Title
            alertDialog.setTitle("Warning");
    
            // Setting Dialog Message
            alertDialog.setMessage("Do you cancel this transaction?");
    
            // On pressing Settings button
            alertDialog.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    finish();
                    startActivity(intent);
                }
            });
    
            // on pressing cancel button
            alertDialog.setNegativeButton("No", new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    dialog.dismiss();
                }
            });
    
            // Showing Alert Message
            alertDialog.show();
        }
    
        public class PayUJavaScriptInterface {
            Context mContext;
    
            /**
             * Instantiate the interface and set the context
             */
            PayUJavaScriptInterface(Context c) {
                mContext = c;
            }
    
            public void success(long id, final String paymentId) {
                mHandler.post(new Runnable() {
    
                    public void run() {
                        mHandler = null;
                        Toast.makeText(PayUMoneyActivity.this, "Payment Successfully.", Toast.LENGTH_SHORT).show();
                    }
                });
            }
        }
    }
    

    EDITED:

    You can use https://www.payumoney.com/dev-guide/webcheckout/redirect.html now.