up

.idea/.gitignore

@@ -1,33 +0,0 @@
-# Built files
-*.apk
-*.aab
-*.dex
-*.class
-
-# Gradle
-.gradle/
-build/
-*/build/
-
-**/build/
-**/build/**
-**/.transforms/
-**/intermediates/
-**/tmp/
-paysdk-lib/build/
-
-# Android Studio
-*.iml
-.idea/
-local.properties
-
-# Keystore
-*.jks
-*.keystore
-
-# OS files
-.DS_Store
-Thumbs.db
-
-# Logs
-*.log

.idea/compiler.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
   <component name="CompilerConfiguration">
-    <bytecodeTargetLevel target="17" />
+    <bytecodeTargetLevel target="21" />
   </component>
 </project>

.idea/copilot.data.migration.agent.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AgentMigrationStateService">
+    <option name="migrationStatus" value="COMPLETED" />
+  </component>
+</project>

.idea/copilot.data.migration.ask.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AskMigrationStateService">
+    <option name="migrationStatus" value="COMPLETED" />
+  </component>
+</project>

.idea/copilot.data.migration.ask2agent.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Ask2AgentMigrationStateService">
+    <option name="migrationStatus" value="COMPLETED" />
+  </component>
+</project>

.idea/copilot.data.migration.edit.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="EditMigrationStateService">
+    <option name="migrationStatus" value="COMPLETED" />
+  </component>
+</project>

.idea/deploymentTargetSelector.xml

@@ -4,14 +4,6 @@
     <selectionStates>
       <SelectionState runConfigName="app">
         <option name="selectionMode" value="DROPDOWN" />
-        <DropdownSelection timestamp="2025-10-28T19:40:02.148831Z">
-          <Target type="DEFAULT_BOOT">
-            <handle>
-              <DeviceId pluginId="PhysicalDevice" identifier="serial=0123456789ABCDEF" />
-            </handle>
-          </Target>
-        </DropdownSelection>
-        <DialogSelection />
       </SelectionState>
     </selectionStates>
   </component>

.idea/gradle.xml

@@ -6,7 +6,7 @@
       <GradleProjectSettings>
         <option name="testRunner" value="CHOOSE_PER_TEST" />
         <option name="externalProjectPath" value="$PROJECT_DIR$" />
-        <option name="gradleJvm" value="temurin-17" />
+        <option name="gradleJvm" value="#GRADLE_LOCAL_JAVA_HOME" />
         <option name="modules">
           <set>
             <option value="$PROJECT_DIR$" />

.idea/misc.xml

@@ -1,9 +1,4 @@
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="temurin-17" project-jdk-type="JavaSDK">
-    <output url="file://$PROJECT_DIR$/build/classes" />
-  </component>
-  <component name="ProjectType">
-    <option name="id" value="Android" />
-  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="jbr-21" project-jdk-type="JavaSDK" />
 </project>

app/build.gradle

@@ -40,6 +40,9 @@ android {
             minifyEnabled false
             proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
         }
+        debug {
+            debuggable true
+        }
     }
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_11
@@ -88,7 +91,8 @@ kapt {
 
 dependencies {
     implementation fileTree(include: ['*.jar', '*.aar'], dir: 'libs')
-
+    implementation libs.androidx.lifecycle.livedata.ktx
+    implementation libs.androidx.lifecycle.viewmodel.ktx
 
 
     def nav_version = "2.3.2"

app/src/main/java/com/utsmm/kbz/MainFragment.java

@@ -849,6 +849,12 @@ public class MainFragment extends DataBindingFragment {
             }
         }
 
+        public void onClickQR(){
+            // navigate to new QR Pay fragment
+            routeId = R.id.action_nav_main_to_qrFragment;
+            safeNavigateToRouteId();
+        }
+
         public void onClickQRPay() {
 
             String mmqrIp = SystemParamsOperation.getInstance().getSecHostIpAddress();
@@ -871,6 +877,7 @@ public class MainFragment extends DataBindingFragment {
                 processBatch();
                 sharedViewModel.transactionsType.setValue(TransactionsType.MMQR);
                 navigateToAmount();
+
             }
         }
 

app/src/main/java/com/utsmm/kbz/ui/adapters/QRPayAdapter.java

@@ -0,0 +1,68 @@
+package com.utsmm.kbz.ui.adapters;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.databinding.DataBindingUtil;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.utsmm.kbz.R;
+import com.utsmm.kbz.databinding.ItemQrPayButtonBinding;
+import com.utsmm.kbz.ui.qr_pay.QRPayItem;
+
+import java.util.List;
+
+public class QRPayAdapter extends RecyclerView.Adapter<QRPayAdapter.ViewHolder> {
+
+    public interface OnItemClickListener {
+        void onItemClick(int position);
+    }
+
+    private final List<QRPayItem> items;
+    private final OnItemClickListener listener;
+
+    public QRPayAdapter(List<QRPayItem> item, OnItemClickListener listener) {
+        this.items = item;
+        this.listener = listener;
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        ItemQrPayButtonBinding binding = DataBindingUtil.inflate(
+                LayoutInflater.from(parent.getContext()),
+                R.layout.item_qr_pay_button,
+                parent,
+                false
+        );
+        return new ViewHolder(binding);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        QRPayItem item = items.get(position);
+        holder.binding.setText(item.title);
+        holder.binding.setIcon(item.icon);
+        holder.binding.btnItem.setOnClickListener(v -> {
+            if(listener != null){
+                listener.onItemClick(position);
+            }
+        });
+    }
+
+    @Override
+    public int getItemCount() {
+        return items == null ? 0 : items.size();
+    }
+
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+        final ItemQrPayButtonBinding binding;
+        public ViewHolder(@NonNull ItemQrPayButtonBinding binding) {
+            super(binding.getRoot());
+            this.binding = binding;
+        }
+    }
+}
+

app/src/main/java/com/utsmm/kbz/ui/core_ui/InputPasswordFragment.java

@@ -142,6 +142,10 @@ public class InputPasswordFragment extends DataBindingFragment implements DataBi
 
     private void checkRoute() {
         switch (Objects.requireNonNull(sharedViewModel.transactionsType.getValue())) {
+            case MMQR_REFUND:
+                inputPasswordViewModel.passwordType.setValue(InputPasswordType.SYSTEM);
+                routeId = R.id.action_inputPasswordFragment_to_QRRefundProcessFragment;
+                break;
             case PRE_AUTH_COMPLETE_VOID:
                 inputPasswordViewModel.passwordType.setValue(InputPasswordType.SYSTEM);
                 sharedViewModel.transactionName.postValue(getResourceString(R.string.title_pre_auth_complete));
@@ -242,6 +246,7 @@ public class InputPasswordFragment extends DataBindingFragment implements DataBi
             if(inputPasswordViewModel.onClickEnter()) {
                 clearLiveData();
 
+
                 if(sharedViewModel.transactionsType.getValue() == TransactionsType.SETTING) {
                     mListener.onSuccess();
                 }

app/src/main/java/com/utsmm/kbz/ui/core_viewmodel/SharedViewModel.java

@@ -18,6 +18,7 @@ import com.utsmyanmar.paylibs.print.printx.PrintXStatus;
 import com.utsmyanmar.paylibs.system.SingleLiveEvent;
 import com.utsmyanmar.paylibs.utils.PrintStatus;
 import com.utsmyanmar.paylibs.utils.core_utils.SystemParamsOperation;
+import com.utsmyanmar.paylibs.utils.iso_utils.TransactionType;
 import com.utsmyanmar.paylibs.utils.iso_utils.TransactionsType;
 import com.utsmm.kbz.util.enums.AccountType;
 import com.utsmm.kbz.util.enums.SettlementType;
@@ -167,6 +168,9 @@ public class SharedViewModel extends ViewModel {
     }
 
 
+    public void setTransactionsType(TransactionsType transactionType) {
+        this.transactionsType.postValue(transactionType);
+    }
     public void setEmvTrans(boolean status) {
         isEmv.setValue(status);
     }

app/src/main/java/com/utsmm/kbz/ui/kpay/KPayViewModel.java

@@ -13,6 +13,7 @@ import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.ViewModel;
 
 import com.kizzy.xpay.util.Sign;
+import com.utsmm.kbz.ui.qr_pay.QRRefund;
 import com.utsmyanmar.baselib.network.model.DemoQRRequest;
 import com.utsmyanmar.baselib.network.model.DemoQRResponse;
 import com.utsmyanmar.baselib.network.model.DemoQRReturnRequest;
@@ -66,6 +67,7 @@ public class KPayViewModel extends ViewModel {
 
 
 
+
     private String generateRandomTwoChars() {
         // You can reuse the existing character set and SecureRandom instance
         StringBuilder randomChars = new StringBuilder(3);
@@ -292,6 +294,16 @@ public class KPayViewModel extends ViewModel {
     private TradeData tradeData;
     private PayDetail payDetail;
 
+    private QRRefund qrRefund;
+
+    public QRRefund getQrRefund() {
+        return qrRefund;
+    }
+
+    public void setQrRefund(QRRefund qrRefund) {
+        this.qrRefund = qrRefund;
+    }
+
     public void setTradeData(TradeData tradeData){
         this.tradeData = tradeData;
     }

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRHistoryAdapter.java

@@ -0,0 +1,61 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.databinding.DataBindingUtil;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.utsmm.kbz.R;
+import com.utsmm.kbz.databinding.ItemQrHistoryBinding;
+import com.utsmyanmar.paylibs.model.PayDetail;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class QRHistoryAdapter extends RecyclerView.Adapter<QRHistoryAdapter.ViewHolder> {
+
+    private List<PayDetail> items = new ArrayList<>();
+
+    public void setItems(List<PayDetail> data){
+        items = data;
+        notifyDataSetChanged();
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        ItemQrHistoryBinding binding = DataBindingUtil.inflate(
+                LayoutInflater.from(parent.getContext()),
+                R.layout.item_qr_history,
+                parent,
+                false
+        );
+        return new ViewHolder(binding);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        holder.bind(items.get(position));
+    }
+
+    @Override
+    public int getItemCount() {
+        return items.size();
+    }
+
+    static class ViewHolder extends RecyclerView.ViewHolder {
+        private final ItemQrHistoryBinding binding;
+
+        public ViewHolder(@NonNull ItemQrHistoryBinding binding){
+            super(binding.getRoot());
+            this.binding = binding;
+        }
+
+        public void bind(PayDetail item){
+            binding.setPayDetail(item);
+            binding.executePendingBindings();
+        }
+    }
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRHistoryFragment.java

@@ -0,0 +1,78 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+import android.os.Bundle;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.utsmm.kbz.BR;
+import com.utsmm.kbz.R;
+import com.utsmyanmar.baselib.fragment.DataBindingFragment;
+import com.utsmyanmar.baselib.util.DataBindingConfig;
+
+import dagger.hilt.android.AndroidEntryPoint;
+
+@AndroidEntryPoint
+public class QRHistoryFragment extends DataBindingFragment {
+
+    private QRHistoryAdapter adapter;
+    private QRHistoryViewModel viewModel;
+
+
+    @Override
+    protected void initViewModel() {
+        viewModel = new ViewModelProvider(this).get(QRHistoryViewModel.class);
+    }
+
+    @Override
+    protected DataBindingConfig getDataBindingConfig() {
+        DataBindingConfig bindingConfig = new DataBindingConfig(R.layout.fragment_qr_history, BR.viewModel, viewModel);
+        bindingConfig.addBindingParam(BR.adapter, adapter);
+        return bindingConfig;
+    }
+
+    @Override
+    protected int currentId() {
+        return 0;
+    }
+
+    @Override
+    protected int hostId() {
+        return 0;
+    }
+
+    @Override
+    protected int routeId() {
+        return 0;
+    }
+
+    @Override
+    public void onResume(){
+        super.onResume();
+        setToolBarTitleWithBackIcon("History");
+        observeData();
+    }
+
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstance){
+        super.onViewCreated(view, savedInstance);
+
+        RecyclerView rvHistory = view.findViewById(R.id.qrRvHistory);
+        rvHistory.setLayoutManager(new LinearLayoutManager(getContext()));
+        adapter = new QRHistoryAdapter();
+        rvHistory.setAdapter(adapter);
+        observeData();
+    }
+
+    private void observeData(){
+        viewModel.getAllQrHistory().observe(getViewLifecycleOwner(), list -> {
+            adapter.setItems(list);
+        });
+    }
+
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRHistoryViewModel.java

@@ -0,0 +1,35 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.ViewModel;
+
+import com.utsmyanmar.baselib.repo.Repository;
+import com.utsmyanmar.paylibs.model.PayDetail;
+
+import java.util.List;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.lifecycle.HiltViewModel;
+
+@HiltViewModel
+public class QRHistoryViewModel extends ViewModel {
+    private final Repository repository;
+    private final LiveData<List<PayDetail>> history;
+    private final LiveData<List<PayDetail>> refundList;
+
+    @Inject
+    public QRHistoryViewModel(Repository repository){
+        this.repository = repository;
+        this.history = repository.getAllQRHistory();
+        this.refundList = repository.getRefundableQRHistory();
+    }
+
+    public LiveData<List<PayDetail>> getAllQrHistory(){
+        return history;
+    }
+
+    public LiveData<List<PayDetail>> getRefundableQrHistory(){
+        return refundList;
+    }
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRPayFragment.java

@@ -0,0 +1,406 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+import androidx.lifecycle.Observer;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.navigation.fragment.NavHostFragment;
+
+import com.utsmm.kbz.BR;
+import com.utsmm.kbz.MainViewModel;
+import com.utsmm.kbz.R;
+import com.utsmm.kbz.config.Constants;
+import com.utsmm.kbz.ui.adapters.QRPayAdapter;
+import com.utsmm.kbz.ui.core_viewmodel.SharedViewModel;
+import com.utsmm.kbz.ui.management.ManagementViewModel;
+import com.utsmm.kbz.ui.settlement.SettlementViewModel;
+import com.utsmm.kbz.util.Connectivity;
+import com.utsmm.kbz.util.tms.TMSUtil;
+import com.utsmyanmar.baselib.util.DataBindingConfig;
+import com.utsmyanmar.baselib.fragment.DataBindingFragment;
+import com.utsmyanmar.paylibs.model.PayDetail;
+import com.utsmyanmar.paylibs.utils.POSUtil;
+import com.utsmyanmar.paylibs.utils.core_utils.SystemParamsOperation;
+import com.utsmyanmar.paylibs.utils.enums.CurrencyType;
+import com.utsmyanmar.paylibs.utils.enums.HostType;
+import com.utsmyanmar.paylibs.utils.iso_utils.TransactionsType;
+
+import java.util.Date;
+import java.util.List;
+
+public class QRPayFragment extends DataBindingFragment {
+
+    private MainViewModel mainViewModel;
+    private SharedViewModel sharedViewModel;
+    private static final int hostId = Constants.NAV_HOST_ID;
+    private int routeId;
+    private static final int currentId = R.id.qrFragment;
+
+
+
+    private Observer<PayDetail> observeLastTrans;
+    private PayDetail lastPay;
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        setToolBarTitleWithBackIcon("QR Pay");
+    }
+
+    @Override
+    protected void initViewModel() {
+        mainViewModel = new ViewModelProvider(requireActivity()).get(MainViewModel.class);
+//        sharedViewModel = new ViewModelProvider(requireActivity()).get(SharedViewModel.class);
+        sharedViewModel = getFragmentScopeViewModel(SharedViewModel.class);
+    }
+
+    @Override
+    protected DataBindingConfig getDataBindingConfig() {
+
+        List<QRPayItem> features = List.of(
+                new QRPayItem("Generate QR", R.drawable.ic_qr_pay),
+                new QRPayItem("Refund", R.drawable.ic_refund),
+                new QRPayItem("History", R.drawable.ic_history)
+        );
+
+        QRPayAdapter adapter = new QRPayAdapter(features, position -> {
+            QRPayItem selectedBtn = features.get(position);
+            switch (selectedBtn.title){
+                case "Generate QR":
+                    onClickQRPay();
+                    break;
+                case "Refund":
+                    onClickRefund();
+                    break;
+                case "History":
+                    onClickHistory();
+                    break;
+            }
+        });
+
+        DataBindingConfig config = new DataBindingConfig(R.layout.fragment_qr_pay, BR.mainViewModel, mainViewModel);
+        config.addBindingParam(BR.sharedViewModel,sharedViewModel);
+        config.addBindingParam(BR.adapter, adapter);
+        return config;
+    }
+
+    public class ClickEvent {
+        public void onGenerateQRClick() { onClickQRPay(); }
+        public void onRefundClick() { onClickRefund(); }
+        public void onHistoryClick() { onClickHistory(); }
+    }
+
+    @Override
+    protected int currentId() {
+        return currentId;
+    }
+
+    @Override
+    protected int hostId() {
+        return hostId;
+    }
+
+    @Override
+    protected int routeId() {
+        return routeId;
+    }
+
+    public void onClickQRPay() {
+
+        String mmqrIp = SystemParamsOperation.getInstance().getSecHostIpAddress();
+
+        if (mainViewModel.payDetailSingle.getValue() != null) {
+            mainViewModel.startReversal(mainViewModel.payDetailSingle.getValue());
+        }
+//            else if (TMSUtil.getInstance().checkSecHostParams().isStatus() == ValidityStatus.FAILURE) {
+//                showDeclineDialog(getResourceString(R.string.txt_please_download_config)+"\n"+TMSUtil.getInstance().checkSecHostParams().getMessage());
+//            }
+        else if (!Connectivity.isConnectedWifi(getContext()) && !Connectivity.isConnectedMobile(getContext())) {
+            showSingleInfoDialog(getResourceString(R.string.txt_please_enable_internet));
+        }
+//            else if (!isValidDomain(mmqrIp)) {
+//                showDeclineDialog(getResourceString(R.string.txt_please_check_mmqr_ip));
+//            }
+        else {
+            CurrencyType currencyType = TMSUtil.getInstance().currencyTextToCurrencyType(SystemParamsOperation.getInstance().getSecHostCurrency());
+            sharedViewModel.set_currencyText(currencyType.name);
+            processBatch();
+            sharedViewModel.transactionsType.setValue(TransactionsType.MMQR);
+            navigateToAmount();
+        }
+    }
+
+    private void onClickHistory(){
+        sharedViewModel.hostType.setValue(HostType.QR);
+        routeId = R.id.action_qrFragment_to_qrHistory;
+        safeNavigateToRouteId();
+    }
+
+    private void onClickRefund(){
+        sharedViewModel.setTransactionsType(TransactionsType.MMQR_REFUND);
+        routeId = R.id.action_qrFragment_to_qr_refund_list;
+//        routeId = R.id.action_qrFragment_to_inputPasswordFragment;
+        safeNavigateToRouteId();
+    }
+
+    private void navigateToAmount() {
+        routeId = R.id.action_qrFragment_to_inputAmountFragment;
+        safeNavigateToRouteId();
+    }
+    private void processBatch() {
+        calculateLastTransaction();
+        mainViewModel.observeSettlementPOS();
+        observeLastTrans = payDetail -> {
+
+            if(payDetail == null) {
+                return;
+            }
+
+//            SystemParamsOperation.getInstance().saveSerialNumber(payDetail.getVoucherNo());
+//            SystemParamsOperation.getInstance().saveInvoiceNumber(payDetail.getInvoiceNo());
+
+            if(lastPay != null) {
+                Date lastPayDate = POSUtil.getInstance().getDateByString(lastPay.getTransDate());
+                Date observePayDate = POSUtil.getInstance().getDateByString(payDetail.getTransDate());
+
+                if(lastPayDate.compareTo(observePayDate) < 0) {
+                    payDetail = lastPay;
+                }
+            }
+
+//            LogUtil.d(TAG,"TransDetail :"+payDetail.getTransType() + "- Trans Time :"+payDetail.getTransDate());
+
+            if(payDetail.getTransactionType() == TransactionsType.SETTLEMENT.value){
+                return;
+            }
+
+            /*
+             *  saving for api post request, to send in next time.
+             * */
+            SystemParamsOperation.getInstance().setLastTransTime(String.valueOf(payDetail.getTransNum()));
+            SystemParamsOperation.getInstance().setLastTransName(payDetail.getTransType());
+
+
+            String lastTransDate = payDetail.getTransDate();
+            String lastTransTime = payDetail.getTransTime();
+
+            Date today = POSUtil.getInstance().getCurrentDate();
+            Date transDate;
+            Date current = new Date(System.currentTimeMillis());
+            String configTimer = SystemParamsOperation.getInstance().getClearBatchTime();
+//            LogUtil.d(TAG,"Config Time :" + configTimer);
+            String configTime = "23:00";
+            int configDay = 10;
+
+            String configRawDay = SystemParamsOperation.getInstance().getClearBatchDay();
+
+            if(configRawDay != null && !configRawDay.trim().isEmpty()) {
+                try {
+                    configDay = Integer.parseInt(configRawDay);
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+
+            }
+
+
+            if(configTimer != null && !configTimer.trim().isEmpty() && checkValidTime(configTimer.trim())) {
+                configTime = configTimer.trim();
+            }
+            Date configDateTime = POSUtil.getInstance().getDateTime(configTime);
+            Date yesterdayConfigDateTime = POSUtil.getInstance().getYesterdayConfigDateTime(configTime);
+
+            transDate = POSUtil.getInstance().getDateByString(lastTransDate);
+
+            Date yesterdayDate = POSUtil.getInstance().getYesterdayDate();
+
+            if(today.compareTo(transDate) == 0) {
+
+//                LogUtil.d(TAG,"Last Trans is Today!");
+//                LogUtil.d(TAG,"date current :!"+current);
+//                LogUtil.d(TAG,"date config :!"+configDateTime);
+
+                // Today
+                if(current.compareTo(configDateTime) > 0) {
+                    // clear batch and force update param
+
+//                    LogUtil.d(TAG,"Last Trans is Today! Config time is passed!");
+//                    if (!SystemParamsOperation.getInstance().isClearBatch()) {
+                    if (checkSyncTrans() || !SystemParamsOperation.getInstance().isClearBatch() ) {
+//                        LogUtil.d(TAG,"Clearing....");
+                        if(!SystemParamsOperation.getInstance().getSettlementStatus()) {
+                            clearBatchAndDownload(configDay,payDetail);
+                        }
+                    }
+
+
+                } else {
+//                    LogUtil.d(TAG,"Last Trans is Today! Config time is not passed yet.....");
+                    SystemParamsOperation.getInstance().setClearBatch(false);
+                }
+
+            } else {
+//                LogUtil.d(TAG,"Last Trans is Before Today!");
+                Date yest;
+                if(configTime.equals("00:00")) {
+                    yest = configDateTime;
+                } else {
+                    yest = yesterdayConfigDateTime;
+                }
+
+
+                Date lastTransDateTime = POSUtil.getInstance().getDateByTransDateTime(lastTransDate,lastTransTime);
+//                LogUtil.d(TAG,"Compare Result : "+lastTransDateTime.compareTo(yest));
+
+                if(yest.compareTo(lastTransDateTime) < 0) {
+//                    LogUtil.d(TAG,"Trans is yesterday, but after config time, no action!");
+                } else {
+//                    LogUtil.d(TAG,"Trans is yesterday, before config time,");
+//                    if(!checkSyncTrans()) {
+//                        LogUtil.d(TAG,"Clearing....");
+                    if(!SystemParamsOperation.getInstance().getSettlementStatus()) {
+                        clearBatchAndDownload(configDay,payDetail);
+                    }
+//                    }
+                }
+
+
+
+            }
+        };
+        if(mainViewModel.lastTrans.hasActiveObservers()) {
+            mainViewModel.lastTrans.removeObserver(observeLastTrans);
+        }
+        mainViewModel.lastTrans.observe(getViewLifecycleOwner(),observeLastTrans);
+    }
+
+    private void calculateLastTransaction() {
+        mainViewModel.allTrans.observe(getViewLifecycleOwner(), new Observer<List<PayDetail>>() {
+            @Override
+            public void onChanged(List<PayDetail> payDetails) {
+                if(payDetails == null || payDetails.isEmpty()) {
+                    return;
+                }
+                PayDetail tempPay = payDetails.get(0);
+                for (int i = 0; i < payDetails.size() ; i++) {
+
+                    Date tempDate = POSUtil.getInstance().getDateByString(tempPay.getTransDate());
+                    Date indexDate = POSUtil.getInstance().getDateByString(payDetails.get(i).getTransDate());
+
+                    if(tempDate.compareTo(indexDate) > 0) {
+                        // if before
+                        tempPay = payDetails.get(i);
+                    }
+                }
+
+                lastPay = tempPay;
+
+//                LogUtil.d(TAG,"Transaction Name : "+tempPay.getTransType());
+//                LogUtil.d(TAG,"Transaction Type : "+tempPay.getTransactionType());
+//                LogUtil.d(TAG,"Transaction Amount : "+tempPay.getAmount());
+//                LogUtil.d(TAG,"Transaction Date/Time : "+tempPay.getTransDate()+"/"+tempPay.getTransTime());
+//                LogUtil.d(TAG,"RRN/Trace : "+tempPay.getReferNo()+"/"+tempPay.getVoucherNo());
+//                LogUtil.d(TAG,"Transaction is canceled : "+tempPay.isCanceled());
+//                LogUtil.d(TAG,"Transaction settlement config : "+tempPay.isSettlementEnabled());
+//                LogUtil.d(TAG,"----------------------------------------------------------");
+            }
+        });
+    }
+
+    private boolean checkSyncTrans() {
+        String transDateString = SystemParamsOperation.getInstance().getSyncTransDate();
+        Date today = POSUtil.getInstance().getCurrentDate();
+        if(transDateString == null || transDateString.isEmpty()) {
+            return true;
+        }
+        Date transDate = POSUtil.getInstance().getDateByString(transDateString);
+        return today.compareTo(transDate) == 0;
+
+    }
+
+    private void clearBatchAndDownload(int configDay,PayDetail payDetail) {
+
+
+        Date yesterday = POSUtil.getInstance().getYesterdayDate();
+        Date lastInputDay = POSUtil.getInstance().getLastInputDay(configDay);
+        mainViewModel.settlementPOS.observe(getViewLifecycleOwner(), list -> {
+
+            Date transDate;
+
+            if(list == null || list.size() == 0) {
+                return;
+            }
+
+            for (PayDetail pay:list) {
+                /*
+                 *  To Hold One day transaction!
+                 * */
+
+                transDate = POSUtil.getInstance().getDateByString(pay.getTransDate());
+
+                if (pay.getTransactionType() == TransactionsType.SALE.value) {
+                    if(lastInputDay.compareTo(transDate) > 0) {
+                        mainViewModel.deletePayDetail(pay);
+                    }
+                } else {
+                    if(yesterday.compareTo(transDate) > 0 ) {
+                        mainViewModel.deletePayDetail(pay);
+                    }
+                }
+
+
+            }
+
+        });
+
+        mainViewModel.deleteTrans.observe(getViewLifecycleOwner(), lists -> {
+            Date transDate;
+            if(lists == null || lists.size() == 0) {
+                return;
+            }
+
+            for (PayDetail pay:lists) {
+                /*
+                 *  To Hold One day transaction!
+                 * */
+
+                transDate = POSUtil.getInstance().getDateByString(pay.getTransDate());
+//                LogUtil.d(TAG,"Trans Type : "+pay.getTransType()+"<=====> Trans Date :"+pay.getTransDate());
+//                LogUtil.d(TAG,"Yesterday Date:  "+yesterday.toString());
+//                LogUtil.d(TAG,"Compare result :"+yesterday.compareTo(transDate));
+
+                if(yesterday.compareTo(transDate) > 0) {
+                    mainViewModel.deletePayDetail(pay);
+                }
+
+            }
+        });
+
+        mainViewModel.preAuthTrans.observe(getViewLifecycleOwner(), lists -> {
+            Date transDate;
+            if(lists == null || lists.size() == 0) {
+                return;
+            }
+
+            for (PayDetail pay:lists) {
+
+                transDate = POSUtil.getInstance().getDateByString(pay.getTransDate());
+
+                if (lastInputDay.compareTo(transDate) > 0) {
+                    mainViewModel.deletePayDetail(pay);
+                }
+
+
+            }
+        });
+
+        /*
+         *
+         *  Need to think about his problem .... Nov 7, 2024
+         * */
+        if(!SystemParamsOperation.getInstance().isClearBatch()) {
+//            downloadParams(payDetail.getTransType(),String.valueOf(payDetail.getTransNum()),TMSUpdate.UPDATE,false);
+        }
+
+    }
+
+
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRPayItem.java

@@ -0,0 +1,11 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+public class QRPayItem {
+    public String title;
+    public int icon;
+
+    public QRPayItem(String title, int icon) {
+        this.title = title;
+        this.icon = icon;
+    }
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRPayViewModel.java

@@ -0,0 +1,42 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+import androidx.lifecycle.ViewModel;
+
+import com.utsmyanmar.baselib.repo.Repository;
+import com.utsmyanmar.paylibs.model.PayDetail;
+
+import java.util.List;
+
+import javax.inject.Inject;
+
+import dagger.hilt.android.lifecycle.HiltViewModel;
+
+@HiltViewModel
+public class QRPayViewModel extends ViewModel {
+
+    private final Repository repository;
+    private final LiveData<List<PayDetail>> refundableHistory;
+
+    private final MutableLiveData<PayDetail> _payDetail = new MutableLiveData<>();
+    public LiveData<PayDetail> payDetail = _payDetail;
+
+
+    @Inject
+    public QRPayViewModel(Repository repository){
+        this.repository = repository;
+        this.refundableHistory = repository.getRefundableQRHistory();
+    }
+
+    public LiveData<List<PayDetail>> getRefundableQrHistory(){
+        return refundableHistory;
+    }
+
+    public void setPayDetail(PayDetail payDetail){
+        _payDetail.setValue(payDetail);
+    }
+
+    public Runnable onCancel;
+    public Runnable onConfirm;
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRRefund.java

@@ -0,0 +1,49 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+public class QRRefund {
+
+    private String referenceNo;
+    private String refundAmount;
+    private String originalAmount;
+    private String reason;
+
+    public QRRefund(String referenceNo, String refundAmount, String originalAmount, String reason) {
+        this.referenceNo = referenceNo;
+        this.refundAmount = refundAmount;
+        this.originalAmount = originalAmount;
+        this.reason = reason;
+    }
+
+    public String getReferenceNo() {
+        return referenceNo;
+    }
+
+    public void setReferenceNo(String referenceNo) {
+        this.referenceNo = referenceNo;
+    }
+
+    public String getRefundAmount() {
+        return refundAmount;
+    }
+
+    public void setRefundAmount(String refundAmount) {
+        this.refundAmount = refundAmount;
+    }
+
+    public String getOriginalAmount() {
+        return originalAmount;
+    }
+
+    public void setOriginalAmount(String originalAmount) {
+        this.originalAmount = originalAmount;
+    }
+
+    public String getReason() {
+        return reason;
+    }
+
+    public void setReason(String reason) {
+        this.reason = reason;
+    }
+
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRRefundDetailFragment.java

@@ -0,0 +1,230 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+import android.os.Bundle;
+import android.text.InputFilter;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.RadioButton;
+import android.widget.RadioGroup;
+import android.widget.LinearLayout;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.utsmm.kbz.ui.kpay.KPayViewModel;
+import com.utsmyanmar.baselib.fragment.DataBindingFragment;
+import com.utsmyanmar.baselib.util.DataBindingConfig;
+import com.utsmyanmar.paylibs.model.PayDetail;
+import com.utsmyanmar.paylibs.model.TradeData;
+import com.utsmyanmar.paylibs.utils.core_utils.SystemParamsOperation;
+import com.utsmyanmar.paylibs.utils.iso_utils.TransactionsType;
+import com.utsmm.kbz.BR;
+import com.utsmm.kbz.R;
+import com.utsmm.kbz.config.Constants;
+import com.utsmm.kbz.ui.core_viewmodel.SharedViewModel;
+import com.utsmm.kbz.util.DecimalDigitsInputFilter;
+import com.utsmm.kbz.util.TransactionUtil;
+import com.utsmm.kbz.util.ecr.CoreUtils;
+
+import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
+import io.reactivex.rxjava3.disposables.CompositeDisposable;
+import io.reactivex.rxjava3.schedulers.Schedulers;
+import com.utsmyanmar.paylibs.utils.LogUtil;
+
+public class QRRefundDetailFragment extends DataBindingFragment {
+
+    private SharedViewModel sharedViewModel;
+    private KPayViewModel kPayViewModel;
+    private int routeId;
+
+
+    private TradeData tradeData;
+    private PayDetail payDetail;
+
+    // UI Elements
+    private RadioGroup radioGroupRefundType;
+    private RadioButton radioOriginal, radioPartial;
+    private EditText etReferenceNo, etOriginalAmount, etRefundAmount, etRefundReason;
+    private LinearLayout originalAmountLayout, refundAmountLayout;
+
+    private boolean isPartialRefund = false;
+
+
+
+    private static final String TAG = com.utsmm.kbz.ui.kpay.QRRefundFragment.class.getSimpleName();
+
+    private static final int hostId = Constants.NAV_HOST_ID;
+    private static final int currentId = R.id.qrRefundDetail;
+
+    @Override
+    protected void initViewModel() {
+        sharedViewModel = getFragmentScopeViewModel(SharedViewModel.class);
+        kPayViewModel = getFragmentScopeViewModel(KPayViewModel.class);
+    }
+
+    @Override
+    protected DataBindingConfig getDataBindingConfig() {
+        return new DataBindingConfig(R.layout.fragment_qr_refund_detail, BR.sharedViewModel, sharedViewModel)
+                .addBindingParam(BR.kPayViewModel, kPayViewModel)
+                .addBindingParam(BR.click, new ClickEvent());
+    }
+
+    @Override
+    protected int currentId() {
+        return currentId;
+    }
+
+    @Override
+    protected int hostId() {
+        return Constants.NAV_HOST_ID;
+    }
+
+    @Override
+    protected int routeId() {
+        return routeId;
+    }
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstanceState){
+        super.onCreate(savedInstanceState);
+        if(getArguments() != null){
+            payDetail = (PayDetail) getArguments().getSerializable("payDetail");
+        }
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        setToolBarTitleWithBackIcon("KPay Refund");
+        kPayViewModel.invalidAmountMsg.setValue("");
+    }
+
+
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        initViews();
+        initData();
+        setupRadioGroupListener();
+    }
+
+    private void initViews() {
+        radioGroupRefundType = mBinding.getRoot().findViewById(R.id.radio_group_refund_type);
+        radioOriginal = mBinding.getRoot().findViewById(R.id.radio_original);
+        radioPartial = mBinding.getRoot().findViewById(R.id.radio_partial);
+        etReferenceNo = mBinding.getRoot().findViewById(R.id.et_reference_no);
+        etOriginalAmount = mBinding.getRoot().findViewById(R.id.et_original_amount);
+        etRefundAmount = mBinding.getRoot().findViewById(R.id.et_refund_amount);
+        etRefundReason = mBinding.getRoot().findViewById(R.id.et_refund_reason);
+        originalAmountLayout = mBinding.getRoot().findViewById(R.id.original_amount_layout);
+        refundAmountLayout = mBinding.getRoot().findViewById(R.id.refund_amount_layout);
+
+        // Set input filters for amount fields
+        etOriginalAmount.setFilters(new InputFilter[]{new DecimalDigitsInputFilter(11, 2)});
+        etRefundAmount.setFilters(new InputFilter[]{new DecimalDigitsInputFilter(11, 2)});
+    }
+
+    private void initData() {
+        payDetail = TransactionUtil.getInstance().initWalletTransaction(TransactionsType.MMQR_REFUND);
+        payDetail.setInvoiceNo(SystemParamsOperation.getInstance().getIncrementInvoiceNum());
+
+        if(getArguments() != null){
+            PayDetail passData = (PayDetail) getArguments().getSerializable("payDetail");
+            if(passData != null && passData.getReferNo() != null){
+                etReferenceNo.setText(passData.getReferNo());
+                etReferenceNo.setEnabled(false);
+            }
+        }
+    }
+
+    private void setupRadioGroupListener() {
+        radioGroupRefundType.setOnCheckedChangeListener((group, checkedId) -> {
+            if (checkedId == R.id.radio_partial) {
+                // Show both amount fields for partial refund
+                isPartialRefund = true;
+                originalAmountLayout.setVisibility(View.VISIBLE);
+                refundAmountLayout.setVisibility(View.VISIBLE);
+            } else {
+                // Hide amount fields for original refund
+                isPartialRefund = false;
+                originalAmountLayout.setVisibility(View.GONE);
+                refundAmountLayout.setVisibility(View.GONE);
+            }
+        });
+    }
+
+
+    public class ClickEvent {
+
+        public void onCancel() {
+            safePopBackStack();
+        }
+
+        public void onConfirm() {
+            kPayViewModel.invalidAmountMsg.setValue("");
+
+            String referenceNo = etReferenceNo.getText().toString().trim();
+            String refundReason = etRefundReason.getText().toString().trim();
+
+            // Validate reference number
+            if (referenceNo.isEmpty()) {
+                kPayViewModel.invalidAmountMsg.setValue("Enter reference number");
+                return;
+            }
+
+            if (isPartialRefund) {
+                // Partial refund validation
+                String originalAmountStr = etOriginalAmount.getText().toString().trim();
+                String refundAmountStr = etRefundAmount.getText().toString().trim();
+
+                if (originalAmountStr.isEmpty()) {
+                    kPayViewModel.invalidAmountMsg.setValue("Enter original amount");
+                    return;
+                }
+
+                if (refundAmountStr.isEmpty()) {
+                    kPayViewModel.invalidAmountMsg.setValue("Enter refund amount");
+                    return;
+                }
+
+                double originalAmount = Double.parseDouble(originalAmountStr);
+                double refundAmount = Double.parseDouble(refundAmountStr);
+
+                if (originalAmount <= 0) {
+                    kPayViewModel.invalidAmountMsg.setValue("Enter valid original amount");
+                    return;
+                }
+
+                if (refundAmount <= 0) {
+                    kPayViewModel.invalidAmountMsg.setValue("Enter valid refund amount");
+                    return;
+                }
+
+                if (refundAmount > originalAmount) {
+                    kPayViewModel.invalidAmountMsg.setValue("Refund amount cannot exceed original amount");
+                    return;
+                }
+
+                QRRefund qrRefund = new QRRefund(referenceNo, refundAmountStr, originalAmountStr, refundReason);
+
+                kPayViewModel.setQrRefund(qrRefund);
+
+            } else {
+                QRRefund qrRefund = new QRRefund(referenceNo, "0", etOriginalAmount.getText().toString().trim(), refundReason);
+
+                kPayViewModel.setQrRefund(qrRefund);
+            }
+
+            kPayViewModel.setPayDetail(payDetail);
+
+            navigateToPassword();
+        }
+    }
+
+    public void navigateToPassword(){
+        routeId = R.id.action_QRRefundDetail_to_inputPasswordFragment;
+        safeNavigateToRouteId();
+    }
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRRefundFragment.java

@@ -0,0 +1,104 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+import android.os.Bundle;
+import android.view.View;
+import android.widget.EditText;
+import android.widget.RadioGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.navigation.fragment.NavHostFragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import com.utsmm.kbz.BR;
+import com.utsmm.kbz.R;
+import com.utsmm.kbz.config.Constants;
+import com.utsmm.kbz.ui.core_viewmodel.SharedViewModel;
+import com.utsmm.kbz.ui.kpay.KPayViewModel;
+import com.utsmyanmar.baselib.fragment.DataBindingFragment;
+import com.utsmyanmar.baselib.util.DataBindingConfig;
+import com.utsmyanmar.paylibs.model.PayDetail;
+
+import java.util.List;
+
+
+public class QRRefundFragment extends DataBindingFragment {
+
+    private static final int hostId = Constants.NAV_HOST_ID;
+    private int routeId;
+    private static final int currentId = R.id.qrRefundList;
+    private QRPayViewModel qrPayViewModel;
+    private SharedViewModel sharedViewModel;
+    private QRRefundViewAdapter adapter;
+
+    @Override
+    protected int currentId() {
+        return currentId;
+    }
+    @Override
+    protected int hostId() {return hostId;}
+    @Override
+    protected int routeId() {return routeId;}
+
+    @Override
+    protected void initViewModel() {
+        sharedViewModel = new ViewModelProvider(requireActivity()).get(SharedViewModel.class);
+        qrPayViewModel = new ViewModelProvider(requireActivity()).get(QRPayViewModel.class);
+    }
+
+    @Override
+    protected DataBindingConfig getDataBindingConfig() {
+        adapter = new QRRefundViewAdapter(this::onRefundItemClicked);
+        return new DataBindingConfig(R.layout.fragment_qr_refund, BR.sharedViewModel, sharedViewModel)
+                .addBindingParam(BR.adapter, adapter)
+                .addBindingParam(BR.click, new ClickEvent());
+    }
+
+    @Override
+    public void onResume(){
+        super.onResume();
+        setToolBarTitleWithBackIcon("QR Refund");
+    }
+
+    @Override
+    public void onCreate(@Nullable Bundle savedInstance){
+        super.onCreate(savedInstance);
+        adapter = new QRRefundViewAdapter(this::onRefundItemClicked);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState){
+        super.onViewCreated(view, savedInstanceState);
+
+        RecyclerView recyclerView = view.findViewById(R.id.qrRefundHistory);
+        recyclerView.setLayoutManager(new LinearLayoutManager(requireContext()));
+        recyclerView.setAdapter(adapter);
+        observeData();
+    }
+
+    private void observeData(){
+        qrPayViewModel.getRefundableQrHistory().observe(getViewLifecycleOwner(), this::updateList);
+    }
+
+    private void updateList(List<PayDetail> list){
+        if (adapter == null) {
+           return;
+        }
+        adapter.setData(list);
+    }
+
+    public class ClickEvent {
+        public void onCancel(){
+            safeNavigateToRouteId();
+        }
+    }
+
+    private void onRefundItemClicked(PayDetail payDetail) {
+        Bundle bundle = new Bundle();
+        bundle.putSerializable("payDetail", payDetail);
+        routeId = R.id.action_qrRefundList_to_qrRefundDetail;
+        NavHostFragment.findNavController(this).navigate(R.id.action_qrRefundList_to_qrRefundDetail, bundle);
+    }
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRRefundProcessFragment.java

@@ -0,0 +1,215 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+import android.os.Bundle;
+import android.view.View;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
+import com.utsmm.kbz.BR;
+import com.utsmm.kbz.R;
+import com.utsmm.kbz.config.Constants;
+import com.utsmm.kbz.ui.core_viewmodel.SharedViewModel;
+import com.utsmm.kbz.ui.kpay.KPayViewModel;
+import com.utsmm.kbz.ui.kpay.QRRefundFragment;
+import com.utsmm.kbz.util.TransactionUtil;
+import com.utsmm.kbz.util.ecr.CoreUtils;
+import com.utsmyanmar.baselib.fragment.DataBindingFragment;
+import com.utsmyanmar.baselib.network.model.KPayRefund;
+import com.utsmyanmar.baselib.util.DataBindingConfig;
+import com.utsmyanmar.paylibs.model.PayDetail;
+import com.utsmyanmar.paylibs.system.SystemDateTime;
+import com.utsmyanmar.paylibs.utils.LogUtil;
+import com.utsmyanmar.paylibs.utils.POSUtil;
+
+import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
+import io.reactivex.rxjava3.disposables.CompositeDisposable;
+import io.reactivex.rxjava3.disposables.Disposable;
+import io.reactivex.rxjava3.schedulers.Schedulers;
+
+public class QRRefundProcessFragment extends DataBindingFragment {
+
+    private static final String TAG = QRRefundProcessFragment.class.getSimpleName();
+    private SharedViewModel sharedViewModel;
+    private KPayViewModel kPayViewModel;
+
+    private PayDetail payDetail;
+
+    private QRRefund qrRefund;
+    private static final int hostId = Constants.NAV_HOST_ID;
+    private int routeId;
+    private static final int currentId = R.id.QRRefundProcessFragment;
+
+    CompositeDisposable retrieveUpdateDisposable = new CompositeDisposable();
+    CompositeDisposable refundDisposable = new CompositeDisposable();
+
+    @Override
+    protected void initViewModel() {
+        sharedViewModel = getFragmentScopeViewModel(SharedViewModel.class);
+        kPayViewModel = getFragmentScopeViewModel(KPayViewModel.class);
+    }
+
+    @Override
+    protected DataBindingConfig getDataBindingConfig() {
+        return new DataBindingConfig(R.layout.fragment_qr_refund_process, BR.sharedViewModel, sharedViewModel)
+                .addBindingParam(BR.kPayViewModel, kPayViewModel);
+    }
+
+    @Override
+    public void onDestroyView() {
+        super.onDestroyView();
+        retrieveUpdateDisposable.dispose();
+        refundDisposable.dispose();
+    }
+
+    @Override
+    protected int currentId() {
+        return currentId;
+    }
+
+    @Override
+    protected int hostId() {
+        return hostId;
+    }
+
+    @Override
+    protected int routeId() {
+        return routeId;
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+
+        initData();
+
+        processKPayRefund(qrRefund.getReferenceNo(), qrRefund.getRefundAmount(), qrRefund.getOriginalAmount(), qrRefund.getReason());
+    }
+
+    private void initData() {
+        payDetail = kPayViewModel.getPayDetail();
+        qrRefund = kPayViewModel.getQrRefund();
+    }
+
+    private void processKPayRefund(String referenceNo, String refundAmount, String originalAmount, String reason) {
+        String merchantId = TransactionUtil.getInstance().getQRMerchantId();
+
+        // Generate unique refund request ID
+        String refundRequestId = referenceNo + "R";
+
+
+        // Create KPay refund request
+        KPayRefund.RefundRequest refundRequest = kPayViewModel.createRefundRequest(
+                refundRequestId,
+                referenceNo,
+                merchantId,
+                refundAmount,
+                reason != null ? reason : "Refund request"
+        );
+
+        Disposable refundDi = kPayViewModel.kPayRefund(refundRequest)
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(
+                        response -> {
+                            handleRefundResponse(response, referenceNo);
+                        },
+                        throwable -> {
+                            LogUtil.e(TAG, "Refund error: " + throwable.getMessage());
+                            showDeclineDialog("Refund failed!\nCommunication Error!");
+                            ecrActionCancel("Refund failed");
+                            navigateToMain();
+                        },
+                        () -> LogUtil.d(TAG, "Refund request completed")
+                );
+
+        refundDisposable.add(refundDi);
+    }
+
+    private void handleRefundResponse(KPayRefund.RefundResponse response, String referenceNo) {
+        if (response != null && response.getResponse() != null && "REFUND_SUCCESS".equalsIgnoreCase(response.getResponse().getRefundStatus())) {
+            LogUtil.d(TAG, "Refund successful!");
+
+            String refundAmount = response.getResponse().getRefundAmount();
+
+            String dateTime = SystemDateTime.getTodayDateFormat() + " " + SystemDateTime.getTodayTimeFormat();
+            payDetail.setAmount(refundAmount == null ? 0 : POSUtil.getInstance().convertAmount(refundAmount));
+            payDetail.setOriginalTransDate(dateTime);
+            payDetail.setQrTransStatus(1);
+            payDetail.setQrReferNo(referenceNo);
+            payDetail.setReferNo(referenceNo);
+            payDetail.setIsCanceled(true);
+
+            retrievedUpdatePayDetail(referenceNo);
+
+        } else {
+            LogUtil.d(TAG, "Refund failed!");
+            payDetail.setQrTransStatus(-1);
+            payDetail.setQrReferNo(referenceNo);
+            payDetail.setReferNo(referenceNo);
+
+            String errorMsg = "Refund failed";
+            if (response != null && response.getResponse() != null && response.getResponse().getMsg() != null) {
+                errorMsg = response.getResponse().getMsg();
+            }
+            payDetail.setTradeResultDes(errorMsg);
+
+            sharedViewModel.payDetail.setValue(payDetail);
+            navigateToNext();
+        }
+    }
+
+    private void retrievedUpdatePayDetail(String refNum) {
+        LogUtil.d(TAG, "Trying to update Database!");
+        retrieveUpdateDisposable.add(kPayViewModel.searchPayByRefNum(refNum)
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(oldPay -> {
+                            LogUtil.d(TAG, "Inside the subscribe!");
+                            if (oldPay != null) {
+                                oldPay.setIsCanceled(true);
+                                payDetail.setQrTransId(oldPay.getQrTransId());
+                                payDetail.setCustomerMobile(oldPay.getCustomerMobile());
+                                sharedViewModel.updatePayDetail(oldPay);
+                            }
+                            updateData();
+                            navigateToNext();
+                        },
+                        onError -> {
+                            LogUtil.d(TAG, "On error Unable to retrieve PayDetail");
+                            updateData();
+                            navigateToNext();
+                        },
+                        () -> {
+                            LogUtil.d(TAG, "No data found! navigating to Result Page!");
+                            updateData();
+                            navigateToNext();
+                        }
+                ));
+    }
+
+    private void updateData() {
+        kPayViewModel.insertPayDetail(payDetail);
+        sharedViewModel.payDetail.postValue(payDetail);
+    }
+
+    private void navigateToNext() {
+        routeId = R.id.action_QRRefundProcessFragment_to_transactionResultFragment;
+        safeNavigateToRouteId();
+    }
+
+    private void navigateToMain() {
+        routeId = R.id.action_QRRefundProcessFragment_to_nav_main;
+        safeNavigateToRouteId();
+    }
+
+    private void ecrActionCancel(String msg) {
+        if (sharedViewModel.isEcr.getValue() != null) {
+            if (sharedViewModel.isEcr.getValue()) {
+                sharedViewModel.isEcr.postValue(false);
+                CoreUtils.getInstance(sharedViewModel).responseRejectMsg(msg);
+                sharedViewModel.isEcrFinished.postValue(true);
+            }
+        }
+    }
+}

app/src/main/java/com/utsmm/kbz/ui/qr_pay/QRRefundViewAdapter.java

@@ -0,0 +1,84 @@
+package com.utsmm.kbz.ui.qr_pay;
+
+import androidx.annotation.NonNull;
+import androidx.databinding.DataBindingUtil;
+import androidx.recyclerview.widget.RecyclerView;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.utsmm.kbz.BR;
+import com.utsmm.kbz.R;
+import com.utsmm.kbz.databinding.ItemQrRefundBinding;
+import com.utsmm.kbz.ui.adapters.QRPayAdapter;
+import com.utsmyanmar.paylibs.model.PayDetail;
+
+import java.util.ArrayList;
+import java.util.List;
+
+
+public class QRRefundViewAdapter extends RecyclerView.Adapter<QRRefundViewAdapter.ViewHolder> {
+
+    private List<PayDetail> payDetailList = new ArrayList<>();
+    private final OnRefundItemClick listener;
+
+    public interface OnRefundItemClick {
+        void onClick(PayDetail payDetail);
+    }
+
+    public QRRefundViewAdapter(OnRefundItemClick listener){
+        this.listener = listener;
+    }
+//    public QRRefundViewAdapter(List<PayDetail> payDetailList, OnRefundItemClick listener){
+//        this.payDetailList = payDetailList;
+//        this.listener = listener;
+//    }
+
+
+    public void setData(List<PayDetail> data){
+        this.payDetailList = data != null ? data : new ArrayList<>();
+        notifyDataSetChanged();
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        ItemQrRefundBinding binding = DataBindingUtil.inflate(
+                LayoutInflater.from(parent.getContext()),
+                R.layout.item_qr_refund,
+                parent,
+                false
+        );
+
+        return new ViewHolder(binding);
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder holder, int position) {
+        PayDetail payDetail = payDetailList.get(position);
+        holder.bind(payDetail, listener);
+    }
+
+    @Override
+    public int getItemCount() {
+        return payDetailList == null ? 0 : payDetailList.size();
+    }
+
+    static class ViewHolder extends RecyclerView.ViewHolder {
+        private final ItemQrRefundBinding binding;
+
+        public ViewHolder(ItemQrRefundBinding binding){
+            super(binding.getRoot());
+            this.binding = binding;
+        }
+
+        public void bind(PayDetail payDetail, OnRefundItemClick listener){
+            binding.setVariable(BR.payDetail, payDetail);
+            binding.executePendingBindings();
+            binding.getRoot().setOnClickListener( v -> {
+                if(listener != null) listener.onClick(payDetail);
+            });
+        }
+    }
+}

app/src/main/res/layout/fragment_dashboard_screen.xml

@@ -240,7 +240,7 @@
                 android:foreground="?android:attr/selectableItemBackground"
                 android:clickable="true"
                 android:focusable="true"
-                android:onClick="@{() -> click.onClickQRPay()}"
+                android:onClick="@{() -> click.onClickQR()}"
                 app:disableBtn="@{mainViewModel.kPayStatus}"
                 app:layout_constraintTop_toBottomOf="@+id/cardMenuCard"
                 app:layout_constraintStart_toStartOf="parent"

app/src/main/res/layout/fragment_qr_history.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android">
+    <data>
+        <variable
+            name="vm"
+            type="com.utsmm.kbz.ui.qr_pay.QRHistoryViewModel" />
+    </data>
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/qrRvHistory"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent" />
+        <!-- No Data Message -->
+<!--        <TextView-->
+<!--            android:id="@+id/tvNoData"-->
+<!--            android:layout_width="match_parent"-->
+<!--            android:layout_height="match_parent"-->
+<!--            android:gravity="center"-->
+<!--            android:text="No history available"-->
+<!--            android:textSize="18sp"-->
+<!--            android:padding="16dp"-->
+<!--            android:visibility="@{vm.refundList.size() == 0 ? View.VISIBLE : View.GONE}" />-->
+    </FrameLayout>
+</layout>

app/src/main/res/layout/fragment_qr_pay.xml

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:bind="http://schemas.android.com/tools">
+
+
+    <data>
+        <variable
+            name="adapter"
+            type="androidx.recyclerview.widget.RecyclerView.Adapter" />
+        <variable
+            name="sharedViewModel"
+            type="com.utsmm.kbz.ui.core_viewmodel.SharedViewModel" />
+    </data>
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:background="@color/colorBackground">
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/recyclerViewFeatures"
+            android:layout_width="match_parent"
+            android:layout_height="0dp"
+            android:layout_weight="1"
+            android:clipToPadding="false"
+            android:nestedScrollingEnabled="false"
+            android:padding="16dp"
+            app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:spanCount="2"
+            bind:setAdapter="@{adapter}"
+            tools:itemCount="3"
+            tools:listitem="@layout/item_qr_pay_button" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+</layout>

app/src/main/res/layout/fragment_qr_refund.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    xmlns:bind="http://schemas.android.com/tools">
+
+    <data>
+        <variable
+            name="sharedViewModel"
+            type="com.utsmm.kbz.ui.core_viewmodel.SharedViewModel" />
+        <variable
+            name="adapter"
+            type="androidx.recyclerview.widget.RecyclerView.Adapter" />
+
+        <!-- Optional: Click handler class (if you want Cancel button or click events) -->
+<!--        <variable-->
+<!--            name="click"-->
+<!--            type="com.utsmm.kbz.ui.qr_pay.QRRefundListFragment.ClickEvent" />-->
+    </data>
+
+    <FrameLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <!-- RecyclerView showing refund history -->
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/qrRefundHistory"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            bind:setAdapter="@{adapter}"
+            tools:listitem="@layout/item_qr_refund" />
+        <!-- Optional empty view (you can control visibility with ViewModel vars) -->
+        <TextView
+            android:id="@+id/txtNoData"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center"
+            android:text="Not Records To Display"
+            android:textSize="16sp"
+            android:textColor="#888"
+            android:visibility="gone" />
+
+    </FrameLayout>
+</layout>

app/src/main/res/layout/fragment_qr_refund_detail.xml

@@ -0,0 +1,349 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <data>
+        <variable
+            name="sharedViewModel"
+            type="com.utsmm.kbz.ui.core_viewmodel.SharedViewModel" />
+
+        <variable
+            name="kPayViewModel"
+            type="com.utsmm.kbz.ui.kpay.KPayViewModel" />
+
+        <variable
+            name="click"
+            type="com.utsmm.kbz.ui.qr_pay.QRRefundDetailFragment.ClickEvent" />
+    </data>
+
+    <ScrollView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <androidx.constraintlayout.widget.ConstraintLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:padding="16dp">
+
+            <!-- Refund Type Selection -->
+            <LinearLayout
+                android:id="@+id/refund_type_layout"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toTopOf="parent">
+
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="start"
+                    android:text="Refund Type"
+                    android:textColor="@color/black"
+                    android:textSize="18sp"
+                    android:textStyle="bold" />
+
+                <RadioGroup
+                    android:id="@+id/radio_group_refund_type"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="8dp"
+                    android:orientation="horizontal">
+
+                    <RadioButton
+                        android:id="@+id/radio_original"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:checked="true"
+                        android:text="Original Amount"
+                        android:textSize="16sp" />
+
+                    <RadioButton
+                        android:id="@+id/radio_partial"
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:text="Partial Amount"
+                        android:textSize="16sp" />
+
+                </RadioGroup>
+
+            </LinearLayout>
+
+            <!-- Reference Number Input -->
+            <LinearLayout
+                android:id="@+id/reference_layout"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:orientation="vertical"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/refund_type_layout">
+
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="start"
+                    android:text="Reference Number *"
+                    android:textColor="@color/black"
+                    android:textSize="18sp"
+                    android:textStyle="bold" />
+
+                <androidx.cardview.widget.CardView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="8dp"
+                    app:cardCornerRadius="8dp"
+                    app:cardElevation="4dp">
+
+                    <EditText
+                        android:id="@+id/et_reference_no"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:background="@null"
+                        android:hint="Enter reference number"
+                        android:inputType="text"
+                        android:maxLength="20"
+                        android:padding="16dp"
+                        android:textAlignment="center"
+                        android:textColor="@color/black"
+                        android:textSize="18sp"
+                        tools:text="NEX000011" />
+
+                </androidx.cardview.widget.CardView>
+
+            </LinearLayout>
+
+            <!-- Original Amount Input (for partial refunds) -->
+            <LinearLayout
+                android:id="@+id/original_amount_layout"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:orientation="vertical"
+                android:visibility="gone"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/reference_layout">
+
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="start"
+                    android:text="Original Amount *"
+                    android:textColor="@color/black"
+                    android:textSize="18sp"
+                    android:textStyle="bold" />
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="8dp"
+                    android:orientation="horizontal">
+
+                    <LinearLayout
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:background="@drawable/bg_amount_title"
+                        android:orientation="vertical"
+                        android:padding="16dp">
+
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/mmk"
+                            android:textSize="18sp" />
+                    </LinearLayout>
+
+                    <androidx.cardview.widget.CardView
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent"
+                        android:layout_marginStart="4dp"
+                        app:cardCornerRadius="8dp"
+                        app:cardElevation="4dp">
+
+                        <EditText
+                            android:id="@+id/et_original_amount"
+                            android:layout_width="match_parent"
+                            android:layout_height="wrap_content"
+                            android:background="@null"
+                            android:hint="0.00"
+                            android:inputType="numberDecimal"
+                            android:padding="16dp"
+                            android:textAlignment="center"
+                            android:textColor="@color/black"
+                            android:textSize="18sp"
+                            android:textStyle="bold"
+                            tools:text="1000.00" />
+
+                    </androidx.cardview.widget.CardView>
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+            <!-- Refund Amount Input (for partial refunds) -->
+            <LinearLayout
+                android:id="@+id/refund_amount_layout"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:orientation="vertical"
+                android:visibility="gone"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/original_amount_layout">
+
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="start"
+                    android:text="Refund Amount *"
+                    android:textColor="@color/black"
+                    android:textSize="18sp"
+                    android:textStyle="bold" />
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="8dp"
+                    android:orientation="horizontal">
+
+                    <LinearLayout
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:background="@drawable/bg_amount_title"
+                        android:orientation="vertical"
+                        android:padding="16dp">
+
+                        <TextView
+                            android:layout_width="wrap_content"
+                            android:layout_height="wrap_content"
+                            android:text="@string/mmk"
+                            android:textSize="18sp" />
+                    </LinearLayout>
+
+                    <androidx.cardview.widget.CardView
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent"
+                        android:layout_marginStart="4dp"
+                        app:cardCornerRadius="8dp"
+                        app:cardElevation="4dp">
+
+                        <EditText
+                            android:id="@+id/et_refund_amount"
+                            android:layout_width="match_parent"
+                            android:layout_height="wrap_content"
+                            android:background="@null"
+                            android:hint="0.00"
+                            android:inputType="numberDecimal"
+                            android:padding="16dp"
+                            android:textAlignment="center"
+                            android:textColor="@color/black"
+                            android:textSize="18sp"
+                            android:textStyle="bold"
+                            tools:text="400.00" />
+
+                    </androidx.cardview.widget.CardView>
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+            <!-- Refund Reason Input -->
+            <LinearLayout
+                android:id="@+id/refund_reason_layout"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="24dp"
+                android:orientation="vertical"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/refund_amount_layout">
+
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="start"
+                    android:text="Refund Reason"
+                    android:textColor="@color/black"
+                    android:textSize="18sp"
+                    android:textStyle="bold" />
+
+                <androidx.cardview.widget.CardView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="8dp"
+                    app:cardCornerRadius="8dp"
+                    app:cardElevation="4dp">
+
+                    <EditText
+                        android:id="@+id/et_refund_reason"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content"
+                        android:background="@null"
+                        android:hint="Enter refund reason (optional)"
+                        android:inputType="textMultiLine"
+                        android:lines="3"
+                        android:padding="16dp"
+                        android:textColor="@color/black"
+                        android:textSize="16sp"
+                        tools:text="Customer requested refund" />
+
+                </androidx.cardview.widget.CardView>
+
+            </LinearLayout>
+
+            <!-- Error Message -->
+            <TextView
+                android:id="@+id/error_message"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="8dp"
+                android:text="@{kPayViewModel.invalidAmountMsg}"
+                android:textAlignment="center"
+                android:textColor="@color/red"
+                android:textSize="14sp"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/refund_reason_layout"
+                tools:text="Invalid amount entered" />
+
+            <!-- Action Buttons -->
+            <LinearLayout
+                android:id="@+id/button_layout"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_marginTop="32dp"
+                android:orientation="horizontal"
+                app:layout_constraintBottom_toBottomOf="parent"
+                app:layout_constraintStart_toStartOf="parent"
+                app:layout_constraintTop_toBottomOf="@+id/error_message">
+
+                <Button
+                    android:id="@+id/btn_cancel"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="4dp"
+                    android:layout_weight="1"
+                    android:background="@drawable/bg_rounded_btn_cancel_cv"
+                    android:onClick="@{()->click.onCancel()}"
+                    android:text="@string/layout_cancel"
+                    android:textColor="@color/colorPrimary"
+                    android:textSize="16sp" />
+
+                <Button
+                    android:id="@+id/btn_confirm"
+                    android:layout_width="0dp"
+                    android:layout_height="wrap_content"
+                    android:layout_margin="4dp"
+                    android:layout_weight="1"
+                    android:background="@drawable/bg_rounded_btn_cv"
+                    android:onClick="@{()->click.onConfirm()}"
+                    android:text="Process Refund"
+                    android:textColor="@color/white"
+                    android:textSize="16sp" />
+            </LinearLayout>
+
+        </androidx.constraintlayout.widget.ConstraintLayout>
+    </ScrollView>
+</layout>

app/src/main/res/layout/fragment_qr_refund_process.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto">
+
+    <data>
+        <variable
+            name="sharedViewModel"
+            type="com.utsmm.kbz.ui.core_viewmodel.SharedViewModel" />
+        <variable
+            name="kPayViewModel"
+            type="com.utsmm.kbz.ui.kpay.KPayViewModel" />
+    </data>
+
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:fontFamily="@font/rubik_regular"
+            android:text="@string/txt_processing_refund"
+            android:textColor="@color/black"
+            android:textSize="20sp"
+            app:layout_constraintEnd_toEndOf="@+id/lav_thumbUp"
+            app:layout_constraintStart_toStartOf="@+id/lav_thumbUp"
+            app:layout_constraintTop_toBottomOf="@+id/lav_thumbUp" />
+
+
+        <com.airbnb.lottie.LottieAnimationView
+            android:id="@+id/lav_thumbUp"
+            android:layout_width="match_parent"
+            android:layout_height="300dp"
+            android:layout_margin="8dp"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            app:lottie_autoPlay="true"
+            app:lottie_fileName="lottie_processing_card.json"
+            app:lottie_loop="true" />
+
+    </androidx.constraintlayout.widget.ConstraintLayout>
+</layout>

app/src/main/res/layout/item_qr_history.xml

@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    >
+
+    <data>
+        <import type="com.utsmyanmar.paylibs.utils.POSUtil"/>
+        <variable
+            name="payDetail"
+            type="com.utsmyanmar.paylibs.model.PayDetail" />
+        <variable
+            name="onItemClick"
+            type="com.utsmm.kbz.ui.management.ItemClickListener" />
+    </data>
+
+    <androidx.cardview.widget.CardView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="4dp"
+        android:layout_marginVertical="6dp"
+        app:cardCornerRadius="12dp"
+        app:cardElevation="0dp"
+        app:cardBackgroundColor="@color/colorPrimary"
+        android:clickable="true"
+        android:focusable="true"
+        android:foreground="?android:attr/selectableItemBackground"
+        android:onClick="@{() -> onItemClick.onClickCard(payDetail)}">
+
+        <!-- Card with border -->
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="2dp"
+            android:background="@drawable/bg_edittext_primary_border"
+            android:orientation="horizontal"
+            android:padding="16dp">
+
+            <!-- Transaction Icon -->
+            <ImageView
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:src="@drawable/ic_custom_pos"
+                app:tint="@color/white"
+                android:alpha="0.8"
+                android:layout_marginEnd="12dp"
+                android:layout_gravity="top" />
+
+            <!-- Transaction Details -->
+            <LinearLayout
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:orientation="vertical">
+
+                <!-- Transaction Type and Amount Row -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    android:layout_marginBottom="8dp">
+
+                    <!-- Transaction Type -->
+                    <TextView
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:text="@{POSUtil.getInstance().getTransName(payDetail)}"
+                        android:textColor="@color/white"
+                        android:textSize="16sp"
+                        android:textStyle="bold"
+                        android:fontFamily="sans-serif-medium"
+                        tools:text="SALE" />
+
+                    <!-- Transaction Amount -->
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@{POSUtil.getInstance().checkMinusSign(payDetail.transactionType)+POSUtil.getInstance().getDecimalAmountSeparatorFormat(payDetail.amount) + ` `+POSUtil.getInstance().currencyCodeToText(payDetail.currencyCode)}"
+                        android:textColor="@color/white"
+                        android:textSize="16sp"
+                        android:textStyle="bold"
+                        android:fontFamily="sans-serif-medium"
+                        tools:text="1,000.00 MMK" />
+
+                </LinearLayout>
+
+                <!-- Transaction Date -->
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="@{POSUtil.getInstance().convertDateFormatByDateString(payDetail.transDate)}"
+                    android:textColor="@color/white"
+                    android:textSize="14sp"
+                    android:alpha="0.8"
+                    android:fontFamily="sans-serif"
+                    android:layout_marginBottom="6dp"
+                    tools:text="2022-11-26" />
+
+                <!-- Card Number -->
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="@{POSUtil.getInstance().getCardNumMasking(payDetail.cardNo)}"
+                    android:textColor="@color/white"
+                    android:textSize="14sp"
+                    android:alpha="0.8"
+                    android:fontFamily="monospace"
+                    android:layout_marginBottom="8dp"
+                    tools:text="468785******9564" />
+
+                <!-- Trace and RRN Row -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal">
+
+                    <!-- Trace Number -->
+                    <TextView
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        app:isTrace="@{payDetail}"
+                        android:textColor="@color/white"
+                        android:textSize="13sp"
+                        android:alpha="0.7"
+                        android:fontFamily="monospace"
+                        tools:text="TRC:000050" />
+
+                    <!-- RRN -->
+                    <TextView
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:text="@{`RRN:`+payDetail.referNo}"
+                        android:textColor="@color/white"
+                        android:textSize="13sp"
+                        android:alpha="0.7"
+                        android:fontFamily="monospace"
+                        android:textAlignment="textEnd"
+                        tools:text="RRN:233001786242" />
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+            <!-- Arrow Icon -->
+            <ImageView
+                android:layout_width="16dp"
+                android:layout_height="16dp"
+                android:src="@drawable/ic_right_arrow"
+                app:tint="@color/white"
+                android:alpha="0.6"
+                android:layout_gravity="center_vertical"
+                android:layout_marginStart="8dp" />
+
+        </LinearLayout>
+
+    </androidx.cardview.widget.CardView>
+</layout>

app/src/main/res/layout/item_qr_pay_button.xml

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools">
+
+    <data>
+        <import type="com.utsmm.kbz.R"/>
+        <import type="com.utsmm.kbz.util.enums.FeaturesType" />
+        <variable
+            name="text"
+            type="String" />
+        <variable
+            name="icon"
+            type="Integer" />
+    </data>
+
+    <androidx.cardview.widget.CardView
+        android:id="@+id/btnItem"
+        android:layout_width="match_parent"
+        android:layout_height="180dp"
+        android:layout_margin="8dp"
+        app:cardCornerRadius="20dp"
+        app:cardElevation="6dp"
+        android:foreground="?android:attr/selectableItemBackground"
+        android:clickable="true"
+        android:focusable="true">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:orientation="vertical"
+            android:gravity="center"
+            android:background="@drawable/primary_card_bg"
+            android:padding="16dp">
+
+            <ImageView
+                android:id="@+id/btnIcon"
+                android:layout_width="48dp"
+                android:layout_height="48dp"
+                android:layout_marginBottom="8dp"
+                app:srcUrl="@{icon}"
+                app:tint="@color/white"
+                tools:tint="@color/white"
+                tools:src="@drawable/ic_sale" />
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:fontFamily="@font/rubik_medium"
+                android:textSize="16sp"
+                android:textStyle="bold"
+                android:textAlignment="center"
+                android:textColor="@color/white"
+                android:text="@{text}"
+                android:gravity="center"
+                android:maxLines="2"
+                android:ellipsize="end" />
+
+        </LinearLayout>
+
+    </androidx.cardview.widget.CardView>
+
+</layout>

app/src/main/res/layout/item_qr_refund.xml

@@ -0,0 +1,160 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    >
+
+    <data>
+        <import type="com.utsmyanmar.paylibs.utils.POSUtil"/>
+        <variable
+            name="payDetail"
+            type="com.utsmyanmar.paylibs.model.PayDetail" />
+        <variable
+            name="onItemClick"
+            type="com.utsmm.kbz.ui.qr_pay.QRRefundFragment.ClickEvent" />
+    </data>
+
+    <androidx.cardview.widget.CardView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginHorizontal="4dp"
+        android:layout_marginVertical="6dp"
+        app:cardCornerRadius="12dp"
+        app:cardElevation="0dp"
+        app:cardBackgroundColor="@color/colorPrimary"
+        android:clickable="true"
+        android:focusable="true"
+        android:foreground="?android:attr/selectableItemBackground"
+        android:onClick="@{() -> onItemClick.onCancel()}">
+
+        <!-- Card with border -->
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_margin="2dp"
+            android:background="@drawable/bg_edittext_primary_border"
+            android:orientation="horizontal"
+            android:padding="16dp">
+
+            <!-- Transaction Icon -->
+            <ImageView
+                android:layout_width="24dp"
+                android:layout_height="24dp"
+                android:src="@drawable/ic_custom_pos"
+                app:tint="@color/white"
+                android:alpha="0.8"
+                android:layout_marginEnd="12dp"
+                android:layout_gravity="top" />
+
+            <!-- Transaction Details -->
+            <LinearLayout
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1"
+                android:orientation="vertical">
+
+                <!-- Transaction Type and Amount Row -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal"
+                    android:layout_marginBottom="8dp">
+
+                    <!-- Transaction Type -->
+                    <TextView
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:text="@{POSUtil.getInstance().getTransName(payDetail)}"
+                        android:textColor="@color/white"
+                        android:textSize="16sp"
+                        android:textStyle="bold"
+                        android:fontFamily="sans-serif-medium"
+                        tools:text="SALE" />
+
+                    <!-- Transaction Amount -->
+                    <TextView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@{POSUtil.getInstance().checkMinusSign(payDetail.transactionType)+POSUtil.getInstance().getDecimalAmountSeparatorFormat(payDetail.amount) + ` `+POSUtil.getInstance().currencyCodeToText(payDetail.currencyCode)}"
+                        android:textColor="@color/white"
+                        android:textSize="16sp"
+                        android:textStyle="bold"
+                        android:fontFamily="sans-serif-medium"
+                        tools:text="1,000.00 MMK" />
+
+                </LinearLayout>
+
+                <!-- Transaction Date -->
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="@{POSUtil.getInstance().convertDateFormatByDateString(payDetail.transDate)}"
+                    android:textColor="@color/white"
+                    android:textSize="14sp"
+                    android:alpha="0.8"
+                    android:fontFamily="sans-serif"
+                    android:layout_marginBottom="6dp"
+                    tools:text="2022-11-26" />
+
+                <!-- Card Number -->
+                <TextView
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:text="@{POSUtil.getInstance().getCardNumMasking(payDetail.cardNo)}"
+                    android:textColor="@color/white"
+                    android:textSize="14sp"
+                    android:alpha="0.8"
+                    android:fontFamily="monospace"
+                    android:layout_marginBottom="8dp"
+                    tools:text="468785******9564" />
+
+                <!-- Trace and RRN Row -->
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:orientation="horizontal">
+
+                    <!-- Trace Number -->
+                    <TextView
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        app:isTrace="@{payDetail}"
+                        android:textColor="@color/white"
+                        android:textSize="13sp"
+                        android:alpha="0.7"
+                        android:fontFamily="monospace"
+                        tools:text="TRC:000050" />
+
+                    <!-- RRN -->
+                    <TextView
+                        android:layout_width="0dp"
+                        android:layout_height="wrap_content"
+                        android:layout_weight="1"
+                        android:text="@{`RRN:`+payDetail.referNo}"
+                        android:textColor="@color/white"
+                        android:textSize="13sp"
+                        android:alpha="0.7"
+                        android:fontFamily="monospace"
+                        android:textAlignment="textEnd"
+                        tools:text="RRN:233001786242" />
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+            <!-- Arrow Icon -->
+            <ImageView
+                android:layout_width="16dp"
+                android:layout_height="16dp"
+                android:src="@drawable/ic_right_arrow"
+                app:tint="@color/white"
+                android:alpha="0.6"
+                android:layout_gravity="center_vertical"
+                android:layout_marginStart="8dp" />
+
+        </LinearLayout>
+
+    </androidx.cardview.widget.CardView>
+</layout>

app/src/main/res/navigation/mobile_navigation.xml

@@ -141,6 +141,9 @@
         <action
             android:id="@+id/action_nav_main_to_QRConnectingFragment"
             app:destination="@id/QRConnectingFragment" />
+        <action
+            android:id="@+id/action_nav_main_to_qrFragment"
+            app:destination="@id/qrFragment" />
         <action
             app:launchSingleTop="true"
             app:popUpTo="@+id/nav_main"
@@ -332,6 +335,18 @@
             app:popUpToInclusive="true"
             android:id="@+id/action_inputPasswordFragment_to_inputTraceFragment"
             app:destination="@id/inputTraceFragment" />
+        <action
+            app:launchSingleTop="true"
+            app:popUpTo="@+id/inputPasswordFragment"
+            app:popUpToInclusive="true"
+            android:id="@+id/action_inputPasswordFragment_to_qrRefundList"
+            app:destination="@id/qrRefundList" />
+        <action
+            app:launchSingleTop="true"
+            app:popUpTo="@+id/inputPasswordFragment"
+            app:popUpToInclusive="true"
+            android:id="@+id/action_inputPasswordFragment_to_QRRefundProcessFragment"
+            app:destination="@id/QRRefundProcessFragment" />
 
     </fragment>
 
@@ -1070,6 +1085,96 @@
             android:id="@+id/action_receiptFragment_to_nav_main"
             app:destination="@id/nav_main" />
     </fragment>
+<!--    qr menu-->
+    <fragment
+        android:id="@+id/qrFragment"
+        tools:layout="@layout/fragment_qr_pay"
+        android:name="com.utsmm.kbz.ui.qr_pay.QRPayFragment"
+        android:label="QRPayFragment" >
+        <action
+            android:id="@+id/action_qrFragment_to_inputAmountFragment"
+            app:destination="@id/inputAmountFragment" />
+        <action
+            android:id="@+id/action_qrFragment_to_qrHistory"
+            app:destination="@id/reprintAnyTransactionFragment"
+            />
+        <action
+            android:id="@+id/action_qrFragment_to_qr_refund_list"
+            app:destination="@id/qrRefundList"
+            />
+        <action
+            app:launchSingleTop="true"
+            app:popUpTo="@+id/fragment_qr_pay"
+            app:popUpToInclusive="true"
+            android:id="@+id/action_qrFragment_to_inputPasswordFragment"
+            app:destination="@id/inputPasswordFragment" />
+    </fragment>
 
-
+<!--    <fragment-->
+<!--        android:id="@+id/qrHistory"-->
+<!--        tools:layout="@layout/fragment_qr_history"-->
+<!--        android:name="com.utsmm.kbz.ui.qr_pay.QRHistoryFragment"-->
+<!--        >-->
+<!--    </fragment>-->
+    <fragment
+        android:id="@+id/qrRefundList"
+        tools:layout="@layout/fragment_qr_refund"
+        android:name="com.utsmm.kbz.ui.qr_pay.QRRefundFragment"
+        >
+        <action
+            android:id="@+id/action_qrRefundList_to_qrRefundDetail"
+            app:destination="@id/qrRefundDetail"
+            />
+        <action
+            app:launchSingleTop="true"
+            app:popUpTo="@+id/QRRefundPasswordFragment"
+            app:popUpToInclusive="true"
+            android:id="@+id/action_qrRefundPasswordFragment_to_inputPasswordFragment"
+            app:destination="@id/inputPasswordFragment" />
+    </fragment>
+    <fragment
+        android:id="@+id/qrRefundDetail"
+        tools:layout="@layout/fragment_qr_refund_detail"
+        android:name="com.utsmm.kbz.ui.qr_pay.QRRefundDetailFragment"
+        >
+        <action
+            android:id="@+id/action_QRRefundDetail_to_transactionResultFragment"
+            app:destination="@id/transactionResultFragment" />
+        <action
+            app:launchSingleTop="true"
+            app:popUpToInclusive="true"
+            app:popUpTo="@id/mobile_navigation"
+            android:id="@+id/action_QRRefundDetail_to_nav_main"
+            app:destination="@id/nav_main" />
+<!--        <action-->
+<!--            app:launchSingleTop="true"-->
+<!--            app:popUpTo="@+id/QRRefundFragment"-->
+<!--            app:popUpToInclusive="true"-->
+<!--            android:id="@+id/action_qrRefundDetail_to_inputAmountFragment"-->
+<!--            app:destination="@id/inputAmountFragment" />-->
+        <action
+            app:launchSingleTop="true"
+            app:popUpTo="@+id/qrRefundDetail"
+            app:popUpToInclusive="true"
+            android:id="@+id/action_QRRefundDetail_to_inputPasswordFragment"
+            app:destination="@id/inputPasswordFragment" />
+    </fragment>
+    <fragment
+        tools:layout="@layout/fragment_qr_refund_process"
+        android:id="@+id/QRRefundProcessFragment"
+        android:name="com.utsmm.kbz.ui.qr_pay.QRRefundProcessFragment"
+        android:label="QRRefundProcessFragment" >
+        <action
+            app:launchSingleTop="true"
+            app:popUpTo="@+id/QRRefundProcessFragment"
+            app:popUpToInclusive="true"
+            android:id="@+id/action_QRRefundProcessFragment_to_transactionResultFragment"
+            app:destination="@id/transactionResultFragment" />
+        <action
+            app:launchSingleTop="true"
+            app:popUpTo="@+id/QRRefundProcessFragment"
+            app:popUpToInclusive="true"
+            android:id="@+id/action_QRRefundProcessFragment_to_nav_main"
+            app:destination="@id/nav_main" />
+    </fragment>
 </navigation>

app/src/main/res/values/dimens.xml

@@ -64,4 +64,5 @@
     <dimen name="button_height">48dp</dimen>
     <dimen name="button_corner_radius">12dp</dimen>
     <dimen name="fab_size">56dp</dimen>
+    <dimen name="text_margin">16dp</dimen>
 </resources>

app/src/main/res/values/strings.xml

@@ -362,6 +362,7 @@
     <string name="alert_sound_title">Alert Sound</string>
     <string name="title_echo">Echo Test</string>
     <string name="txt_processing_card">Processing card, please wait...</string>
+    <string name="txt_processing_refund">Processing refund, please wait...</string>
     <string name="title_processing_card">Processing Card</string>
     <string name="title_log_on">Log-On</string>
     <string name="title_log_off">Log-Off</string>
@@ -593,5 +594,7 @@
         <item>PhaYaSa</item>
         <item>YaTaNa</item>
     </string-array>
+    <!-- TODO: Remove or change this placeholder text -->
+    <string name="hello_blank_fragment">Hello blank fragment</string>
 
 </resources>

baselib/src/main/java/com/utsmyanmar/baselib/db/dao/PayDetailDao.java

@@ -149,4 +149,10 @@ public interface PayDetailDao {
     @Query("SELECT * FROM paydetail ORDER BY PID DESC")
     LiveData<List<PayDetail>> getAllTrans();
 
+    @Query("SELECT * FROM paydetail WHERE transactionType = 20 ORDER BY PID DESC")
+    LiveData<List<PayDetail>> getAllQRHistory();
+
+    @Query("SELECT * FROM paydetail WHERE transactionType = 20 AND qrTransStatus = 1 AND isCanceled = 0 ORDER BY PID DESC")
+    LiveData<List<PayDetail>> getRefundableQRHistory();
+
 }

baselib/src/main/java/com/utsmyanmar/baselib/repo/Repository.java

@@ -226,4 +226,8 @@ public class Repository {
     }
 
     public LiveData<List<PayDetail>> getAllTrans() { return payDetailDao.getAllTrans(); }
+
+    public LiveData<List<PayDetail>> getAllQRHistory(){ return payDetailDao.getAllQRHistory();}
+
+    public LiveData<List<PayDetail>> getRefundableQRHistory(){ return payDetailDao.getRefundableQRHistory(); }
 }

gradle/libs.versions.toml

@@ -12,6 +12,9 @@ coreKtx = "1.17.0"
 hilt = "2.51.1"
 androidx-hilt = "1.2.0"
 nav = "2.5.0"
+legacySupportV4 = "1.0.0"
+lifecycleLivedataKtx = "2.9.4"
+lifecycleViewmodelKtx = "2.9.4"
 
 [libraries]
 junit = { group = "junit", name = "junit", version.ref = "junit" }
@@ -25,6 +28,9 @@ core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx"
 hilt-android = { group = "com.google.dagger", name = "hilt-android", version.ref = "hilt" }
 hilt-compiler = { group = "com.google.dagger", name = "hilt-compiler", version.ref = "hilt" }
 androidx-hilt-compiler = { group = "androidx.hilt", name = "hilt-compiler", version.ref = "androidx-hilt" }
+androidx-legacy-support-v4 = { group = "androidx.legacy", name = "legacy-support-v4", version.ref = "legacySupportV4" }
+androidx-lifecycle-livedata-ktx = { group = "androidx.lifecycle", name = "lifecycle-livedata-ktx", version.ref = "lifecycleLivedataKtx" }
+androidx-lifecycle-viewmodel-ktx = { group = "androidx.lifecycle", name = "lifecycle-viewmodel-ktx", version.ref = "lifecycleViewmodelKtx" }
 
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }