Add Zalo payment method

app/build.gradle

@@ -51,6 +51,7 @@ dependencies {
     implementation 'com.google.android.gms:play-services-auth:20.4.1'
     implementation 'com.google.android.gms:play-services-auth-api-phone:18.0.1'
     implementation 'com.google.android.gms:play-services-maps:18.1.0'
+    implementation files('libs/zpdk-release-v3.1.aar')
 
     testImplementation 'junit:junit:4.13.2'
     androidTestImplementation 'androidx.test.ext:junit:1.1.5'
@@ -83,4 +84,5 @@ dependencies {
     //Firebase
     implementation platform('com.google.firebase:firebase-bom:31.2.3')
     implementation("com.squareup.okhttp3:okhttp:4.10.0")
+
 }

app/src/main/AndroidManifest.xml

@@ -30,7 +30,17 @@
         tools:targetApi="31">
         <activity
             android:name=".Activity.OrderCheckOutActivity"
-            android:exported="false" />
+            android:launchMode="singleTask"
+            android:exported="true">
+
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW" />
+                <category android:name="android.intent.category.DEFAULT" />
+                <category android:name="android.intent.category.BROWSABLE" />
+                <data android:scheme="demozpdk"
+                    android:host="app" />
+            </intent-filter>
+        </activity>
         <activity
             android:name=".Activity.FavoriteFoodActivity"
             android:exported="false" />

app/src/main/java/com/capstone/foodify/Activity/OrderCheckOutActivity.java

@@ -1,9 +1,15 @@
 package com.capstone.foodify.Activity;
 
+import android.annotation.SuppressLint;
+import android.app.AlertDialog;
 import android.content.Context;
+import android.content.DialogInterface;
 import android.content.Intent;
 import android.graphics.Typeface;
+import android.os.Build;
 import android.os.Bundle;
+import android.os.StrictMode;
+import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
@@ -17,6 +23,8 @@ import android.widget.Spinner;
 import android.widget.TextView;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.RequiresApi;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.constraintlayout.widget.ConstraintLayout;
 import androidx.core.widget.NestedScrollView;
@@ -31,8 +39,15 @@ import com.capstone.foodify.Model.Address;
 import com.capstone.foodify.Model.DistrictWardResponse;
 import com.capstone.foodify.Model.GoogleMap.GoogleMapResponse;
 import com.capstone.foodify.R;
+import com.capstone.foodify.ZaloPay.Api.CreateOrder;
 import com.google.android.gms.maps.model.LatLng;
 import com.google.android.material.textfield.TextInputLayout;
+import com.thecode.aestheticdialogs.AestheticDialog;
+import com.thecode.aestheticdialogs.DialogStyle;
+import com.thecode.aestheticdialogs.DialogType;
+import com.thecode.aestheticdialogs.OnDialogClickListener;
+
+import org.json.JSONObject;
 
 import java.text.DecimalFormat;
 import java.util.ArrayList;
@@ -41,6 +56,10 @@ import java.util.List;
 import retrofit2.Call;
 import retrofit2.Callback;
 import retrofit2.Response;
+import vn.zalopay.sdk.Environment;
+import vn.zalopay.sdk.ZaloPayError;
+import vn.zalopay.sdk.ZaloPaySDK;
+import vn.zalopay.sdk.listeners.PayOrderListener;
 
 public class OrderCheckOutActivity extends AppCompatActivity {
     private static final Double LAT_SHOP = 16.0500622;
@@ -54,7 +73,7 @@ public class OrderCheckOutActivity extends AppCompatActivity {
     EditText edt_address;
     Spinner spn_list_address, spn_district, spn_ward;
     ConstraintLayout manual_input_address_layout;
-    Button change_address_button, confirm_address_button;
+    Button change_address_button, confirm_address_button, btn_ZaloPay;
     RadioButton list_address_input, auto_detect_location, manual_input_address, radio_button_selected, take_food_from_shop;
     RadioGroup address_option;
     ConstraintLayout progress_layout;
@@ -97,6 +116,7 @@ public class OrderCheckOutActivity extends AppCompatActivity {
         progress_layout = findViewById(R.id.progress_layout);
         txt_distance = findViewById(R.id.txt_distance);
         txt_ship_cost = findViewById(R.id.txt_ship_cost);
+        btn_ZaloPay = findViewById(R.id.btnZaloPay);
 
 
         if(getIntent() != null){
@@ -104,6 +124,13 @@ public class OrderCheckOutActivity extends AppCompatActivity {
             txt_total.setText(Common.changeCurrencyUnit(total));
         }
 
+        StrictMode.ThreadPolicy policy = new
+                StrictMode.ThreadPolicy.Builder().permitAll().build();
+        StrictMode.setThreadPolicy(policy);
+
+        // ZaloPay SDK Init
+        ZaloPaySDK.init(2553, Environment.SANDBOX);
+
         //Show list food in basket
         LinearLayoutManager linearLayoutManager = new LinearLayoutManager(this, RecyclerView.VERTICAL, false);
         recyclerView.setLayoutManager(linearLayoutManager);
@@ -170,6 +197,8 @@ public class OrderCheckOutActivity extends AppCompatActivity {
                     disableAllInputAddressOption();
 
                     getDistanceAndCalculateShipCost(finalAddress);
+
+                    progress_layout.setVisibility(View.GONE);
                 }
             }
         });
@@ -181,6 +210,92 @@ public class OrderCheckOutActivity extends AppCompatActivity {
                 onBackPressed();
             }
         });
+
+        initZaloPaymentMethod();
+    }
+
+    private void initZaloPaymentMethod(){
+        // handle CreateOrder
+        btn_ZaloPay.setOnClickListener(new View.OnClickListener() {
+            @RequiresApi(api = Build.VERSION_CODES.O)
+            @SuppressLint("SetTextI18n")
+            @Override
+            public void onClick(View v) {
+
+                //Check address is null or not
+                if(finalAddress != null){
+
+                    CreateOrder orderApi = new CreateOrder();
+
+                    try {
+                        JSONObject data = orderApi.createOrder(String.valueOf((int) total));
+                        String code = data.getString("return_code");
+
+
+                        if (code.equals("1")) {
+                            //Success create order
+                            String token = data.getString("zp_trans_token");
+
+                            ZaloPaySDK.getInstance().payOrder(OrderCheckOutActivity.this, token, "demozpdk://app", new PayOrderListener() {
+                                @Override
+                                public void onPaymentSucceeded(final String transactionId, final String transToken, final String appTransID) {
+                                    runOnUiThread(new Runnable() {
+                                        @Override
+                                        public void run() {
+                                            new AestheticDialog.Builder(OrderCheckOutActivity.this, DialogStyle.FLAT, DialogType.SUCCESS)
+                                                    .setTitle("Thành công!")
+                                                    .setMessage("Bạn đã thanh toán thành công cho đơn hàng #" + transactionId)
+                                                    .setCancelable(true)
+                                                    .setOnClickListener(new OnDialogClickListener() {
+                                                        @Override
+                                                        public void onClick(@NonNull AestheticDialog.Builder builder) {
+                                                            Common.LIST_BASKET_FOOD.clear();
+                                                            startActivity(new Intent(OrderCheckOutActivity.this, MainActivity.class));
+                                                            finish();
+                                                        }
+                                                    })
+                                                    .show();
+                                        }
+
+                                    });
+                                }
+
+                                @Override
+                                public void onPaymentCanceled(String zpTransToken, String appTransID) {
+                                    new AestheticDialog.Builder(OrderCheckOutActivity.this, DialogStyle.RAINBOW, DialogType.INFO)
+                                            .setTitle("Thông báo!")
+                                            .setMessage("Huỷ thanh toán thành công!")
+                                            .setCancelable(true)
+                                            .show();
+                                }
+
+                                @Override
+                                public void onPaymentError(ZaloPayError zaloPayError, String zpTransToken, String appTransID) {
+                                    new AestheticDialog.Builder(OrderCheckOutActivity.this, DialogStyle.FLAT, DialogType.ERROR)
+                                            .setTitle("Thanh toán chưa thành công!")
+                                            .setMessage("Xin vui lòng thử lại!")
+                                            .setCancelable(true)
+                                            .setOnClickListener(new OnDialogClickListener() {
+                                                @Override
+                                                public void onClick(@NonNull AestheticDialog.Builder builder) {
+                                                    Common.LIST_BASKET_FOOD.clear();
+                                                    startActivity(new Intent(OrderCheckOutActivity.this, MainActivity.class));
+                                                    finish();
+                                                }
+                                            })
+                                            .show();
+                                }
+                            });
+                        }
+
+                    } catch (Exception e) {
+                        e.printStackTrace();
+                    }
+                } else {
+                    Toast.makeText(OrderCheckOutActivity.this, "Bạn chưa chọn địa chỉ!", Toast.LENGTH_SHORT).show();
+                }
+            }
+        });
     }
 
     private void getDistanceAndCalculateShipCost(String address) {
@@ -510,4 +625,10 @@ public class OrderCheckOutActivity extends AppCompatActivity {
             return view;
         }
     }
+
+    @Override
+    protected void onNewIntent(Intent intent) {
+        super.onNewIntent(intent);
+        ZaloPaySDK.getInstance().onResult(intent);
+    }
 }

app/src/main/java/com/capstone/foodify/ZaloPay/Api/CreateOrder.java

@@ -0,0 +1,70 @@
+package com.capstone.foodify.ZaloPay.Api;
+
+import com.capstone.foodify.ZaloPay.Constant.AppInfo;
+import com.capstone.foodify.ZaloPay.Helper.Helpers;
+
+import org.json.JSONObject;
+
+import java.util.Date;
+
+import okhttp3.FormBody;
+import okhttp3.RequestBody;
+
+public class CreateOrder {
+    private class CreateOrderData {
+        String AppId;
+        String AppUser;
+        String AppTime;
+        String Amount;
+        String AppTransId;
+        String EmbedData;
+        String Items;
+        String BankCode;
+        String Description;
+        String Mac;
+
+        private CreateOrderData(String amount) throws Exception {
+            long appTime = new Date().getTime();
+            AppId = String.valueOf(AppInfo.APP_ID);
+            AppUser = "Android_Demo";
+            AppTime = String.valueOf(appTime);
+            Amount = amount;
+            AppTransId = Helpers.getAppTransId();
+            EmbedData = "{}";
+            Items = "[]";
+            BankCode = "zalopayapp";
+            Description = "Hoá đơn thanh toán cho đơn hàng #" + Helpers.getAppTransId();
+            String inputHMac = String.format("%s|%s|%s|%s|%s|%s|%s",
+                    this.AppId,
+                    this.AppTransId,
+                    this.AppUser,
+                    this.Amount,
+                    this.AppTime,
+                    this.EmbedData,
+                    this.Items);
+
+            Mac = Helpers.getMac(AppInfo.MAC_KEY, inputHMac);
+        }
+    }
+
+     public JSONObject createOrder(String amount) throws Exception {
+        CreateOrderData input = new CreateOrderData(amount);
+
+        RequestBody formBody = new FormBody.Builder()
+                .add("app_id", input.AppId)
+                .add("app_user", input.AppUser)
+                .add("app_time", input.AppTime)
+                .add("amount", input.Amount)
+                .add("app_trans_id", input.AppTransId)
+                .add("embed_data", input.EmbedData)
+                .add("item", input.Items)
+                .add("bank_code", input.BankCode)
+                .add("description", input.Description)
+                .add("mac", input.Mac)
+                .build();
+
+        JSONObject data = HttpProvider.sendPost(AppInfo.URL_CREATE_ORDER, formBody);
+        return data;
+    }
+}
+

app/src/main/java/com/capstone/foodify/ZaloPay/Api/HttpProvider.java

@@ -0,0 +1,58 @@
+package com.capstone.foodify.ZaloPay.Api;
+
+import android.util.Log;
+
+import org.json.JSONException;
+import org.json.JSONObject;
+
+import java.io.IOException;
+import java.util.Collections;
+import java.util.concurrent.TimeUnit;
+
+import okhttp3.CipherSuite;
+import okhttp3.ConnectionSpec;
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.RequestBody;
+import okhttp3.Response;
+import okhttp3.TlsVersion;
+
+public class HttpProvider {
+     public static JSONObject sendPost(String URL, RequestBody formBody) {
+        JSONObject data = new JSONObject();
+        try {
+            ConnectionSpec spec = new ConnectionSpec.Builder(ConnectionSpec.MODERN_TLS)
+                    .tlsVersions(TlsVersion.TLS_1_2)
+                    .cipherSuites(
+                            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+                            CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
+                            CipherSuite.TLS_DHE_RSA_WITH_AES_128_GCM_SHA256)
+                    .build();
+
+            OkHttpClient client = new OkHttpClient.Builder()
+                    .connectionSpecs(Collections.singletonList(spec))
+                    .callTimeout(5000, TimeUnit.MILLISECONDS)
+                    .build();
+
+            Request request = new Request.Builder()
+                    .url(URL)
+                    .addHeader("Content-Type", "application/x-www-form-urlencoded")
+                    .post(formBody)
+                    .build();
+
+            Response response = client.newCall(request).execute();
+
+            if (!response.isSuccessful()) {
+                Log.println(Log.ERROR, "BAD_REQUEST", response.body().string());
+                data = null;
+            } else {
+                data = new JSONObject(response.body().string());
+            }
+
+        }  catch (IOException | JSONException e) {
+            e.printStackTrace();
+        }
+
+        return data;
+    }
+}

app/src/main/java/com/capstone/foodify/ZaloPay/Constant/AppInfo.java

@@ -0,0 +1,7 @@
+package com.capstone.foodify.ZaloPay.Constant;
+
+public class AppInfo {
+    public static final int APP_ID = 2553;
+    public static final String MAC_KEY = "PcY4iZIKFCIdgZvA6ueMcMHHUbRLYjPL";
+    public static final String URL_CREATE_ORDER = "https://sb-openapi.zalopay.vn/v2/create";
+}

app/src/main/java/com/capstone/foodify/ZaloPay/Helper/HMac/HMacUtil.java

@@ -0,0 +1,93 @@
+package com.capstone.foodify.ZaloPay.Helper.HMac;
+
+import android.os.Build;
+
+import androidx.annotation.RequiresApi;
+
+import java.io.UnsupportedEncodingException;
+import java.nio.charset.Charset;
+import java.nio.charset.StandardCharsets;
+import java.util.Arrays;
+import java.util.Base64;
+import java.util.LinkedList;
+
+import javax.crypto.Mac;
+import javax.crypto.spec.SecretKeySpec;
+
+public class HMacUtil {
+    public final static String HMACMD5 = "HmacMD5";
+    public final static String HMACSHA1 = "HmacSHA1";
+    public final static String HMACSHA256 = "HmacSHA256";
+    public final static String HMACSHA512 = "HmacSHA512";
+    public final static Charset UTF8CHARSET = StandardCharsets.UTF_8;
+
+    public final static LinkedList<String> HMACS = new LinkedList<String>(Arrays.asList("UnSupport", "HmacSHA256", "HmacMD5", "HmacSHA384", "HMacSHA1", "HmacSHA512"));
+    // @formatter:on
+
+    private static byte[] HMacEncode(final String algorithm, final String key, final String data) {
+        Mac macGenerator = null;
+        try {
+            macGenerator = Mac.getInstance(algorithm);
+            SecretKeySpec signingKey = new SecretKeySpec(key.getBytes(StandardCharsets.UTF_8), algorithm);
+            macGenerator.init(signingKey);
+        } catch (Exception ex) {
+        }
+
+        if (macGenerator == null) {
+            return null;
+        }
+
+        byte[] dataByte = null;
+        try {
+            dataByte = data.getBytes("UTF-8");
+        } catch (UnsupportedEncodingException e) {
+        }
+
+        return macGenerator.doFinal(dataByte);
+    }
+
+    /**
+     * Calculating a message authentication code (MAC) involving a cryptographic
+     * hash function in combination with a secret cryptographic key.
+     *
+     * The result will be represented base64-encoded string.
+     *
+     * @param algorithm A cryptographic hash function (such as MD5 or SHA-1)
+     *
+     * @param key A secret cryptographic key
+     *
+     * @param data The message to be authenticated
+     *
+     * @return Base64-encoded HMAC String
+     */
+    @RequiresApi(api = Build.VERSION_CODES.O)
+    public static String HMacBase64Encode(final String algorithm, final String key, final String data) {
+        byte[] hmacEncodeBytes = HMacEncode(algorithm, key, data);
+        if (hmacEncodeBytes == null) {
+            return null;
+        }
+        return Base64.getEncoder().encodeToString(hmacEncodeBytes);
+    }
+
+    /**
+     * Calculating a message authentication code (MAC) involving a cryptographic
+     * hash function in combination with a secret cryptographic key.
+     *
+     * The result will be represented hex string.
+     *
+     * @param algorithm A cryptographic hash function (such as MD5 or SHA-1)
+     *
+     * @param key A secret cryptographic key
+     *
+     * @param data The message to be authenticated
+     *
+     * @return Hex HMAC String
+     */
+    public static String HMacHexStringEncode(final String algorithm, final String key, final String data) {
+        byte[] hmacEncodeBytes = HMacEncode(algorithm, key, data);
+        if (hmacEncodeBytes == null) {
+            return null;
+        }
+        return HexStringUtil.byteArrayToHexString(hmacEncodeBytes);
+    }
+}

app/src/main/java/com/capstone/foodify/ZaloPay/Helper/HMac/HexStringUtil.java

@@ -0,0 +1,69 @@
+package com.capstone.foodify.ZaloPay.Helper.HMac;
+
+import java.util.Locale;
+
+public class HexStringUtil {
+    private static final byte[] HEX_CHAR_TABLE = {
+            (byte) '0', (byte) '1', (byte) '2', (byte) '3',
+            (byte) '4', (byte) '5', (byte) '6', (byte) '7',
+            (byte) '8', (byte) '9', (byte) 'a', (byte) 'b',
+            (byte) 'c', (byte) 'd', (byte) 'e', (byte) 'f'
+    };
+    // @formatter:on
+
+    /**
+     * Convert a byte array to a hexadecimal string
+     *
+     * @param raw
+     *            A raw byte array
+     *
+     * @return Hexadecimal string
+     */
+    public static String byteArrayToHexString(byte[] raw) {
+        byte[] hex = new byte[2 * raw.length];
+        int index = 0;
+
+        for (byte b : raw) {
+            int v = b & 0xFF;
+            hex[index++] = HEX_CHAR_TABLE[v >>> 4];
+            hex[index++] = HEX_CHAR_TABLE[v & 0xF];
+        }
+        return new String(hex);
+    }
+
+    /**
+     * Convert a hexadecimal string to a byte array
+     *
+     * @param hex
+     *            A hexadecimal string
+     *
+     * @return The byte array
+     */
+    public static byte[] hexStringToByteArray(String hex) {
+        String hexstandard = hex.toLowerCase(Locale.ENGLISH);
+        int sz = hexstandard.length() / 2;
+        byte[] bytesResult = new byte[sz];
+
+        int idx = 0;
+        for (int i = 0; i < sz; i++) {
+            bytesResult[i] = (byte) (hexstandard.charAt(idx));
+            ++idx;
+            byte tmp = (byte) (hexstandard.charAt(idx));
+            ++idx;
+
+            if (bytesResult[i] > HEX_CHAR_TABLE[9]) {
+                bytesResult[i] -= ((byte) ('a') - 10);
+            } else {
+                bytesResult[i] -= (byte) ('0');
+            }
+            if (tmp > HEX_CHAR_TABLE[9]) {
+                tmp -= ((byte) ('a') - 10);
+            } else {
+                tmp -= (byte) ('0');
+            }
+
+            bytesResult[i] = (byte) (bytesResult[i] * 16 + tmp);
+        }
+        return bytesResult;
+    }
+}

app/src/main/java/com/capstone/foodify/ZaloPay/Helper/Helpers.java

@@ -0,0 +1,35 @@
+package com.capstone.foodify.ZaloPay.Helper;
+
+import android.annotation.SuppressLint;
+
+import com.capstone.foodify.ZaloPay.Helper.HMac.HMacUtil;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.Objects;
+
+public class Helpers {
+    private static int transIdDefault = 1;
+
+    @NotNull
+    @SuppressLint("DefaultLocale")
+     public static String getAppTransId() {
+        if (transIdDefault >= 100000) {
+            transIdDefault = 1;
+        }
+
+        transIdDefault += 1;
+        @SuppressLint("SimpleDateFormat") SimpleDateFormat formatDateTime = new SimpleDateFormat("yyMMdd_hhmmss");
+        String timeString = formatDateTime.format(new Date());
+        return String.format("%s%06d", timeString, transIdDefault);
+    }
+
+    @NotNull
+    public static String getMac(@NotNull String key, @NotNull String data) throws NoSuchAlgorithmException, InvalidKeyException {
+        return Objects.requireNonNull(HMacUtil.HMacHexStringEncode(HMacUtil.HMACSHA256, key, data));
+     }
+}