Add ability to select UTXOs to spend

app/src/main/cpp/monerujo.cpp

@@ -1083,12 +1083,13 @@ Java_net_mynero_wallet_model_Wallet_getCoinsJ(JNIEnv *env, jobject instance) {
 
 jobject newCoinsInfo(JNIEnv *env, Monero::CoinsInfo *info) {
     jmethodID c = env->GetMethodID(class_CoinsInfo, "<init>",
-                                   "(JZLjava/lang/String;)V");
+                                   "(JZLjava/lang/String;J)V");
     jstring _key_image = env->NewStringUTF(info->keyImage().c_str());
     jobject result = env->NewObject(class_CoinsInfo, c,
                                     static_cast<jlong> (info->globalOutputIndex()),
                                     info->spent(),
-                                    _key_image);
+                                    _key_image,
+                                    static_cast<jlong> (info->amount()));
     env->DeleteLocalRef(_key_image);
     return result;
 }

app/src/main/java/net/mynero/wallet/MainActivity.java

@@ -24,6 +24,7 @@ import net.mynero.wallet.service.HistoryService;
 import net.mynero.wallet.service.MoneroHandlerThread;
 import net.mynero.wallet.service.PrefService;
 import net.mynero.wallet.service.TxService;
+import net.mynero.wallet.service.UTXOService;
 import net.mynero.wallet.util.Constants;
 import net.mynero.wallet.util.UriData;
 
@@ -36,6 +37,7 @@ public class MainActivity extends AppCompatActivity implements MoneroHandlerThre
     private AddressService addressService = null;
     private HistoryService historyService = null;
     private BlockchainService blockchainService = null;
+    private UTXOService utxoService = null;
 
     private boolean proceedToSend = false;
     private UriData uriData = null;
@@ -96,6 +98,7 @@ public class MainActivity extends AppCompatActivity implements MoneroHandlerThre
         this.addressService = new AddressService(thread);
         this.historyService = new HistoryService(thread);
         this.blockchainService = new BlockchainService(thread);
+        this.utxoService = new UTXOService(thread);
         thread.start();
     }
 
@@ -105,6 +108,7 @@ public class MainActivity extends AppCompatActivity implements MoneroHandlerThre
         this.balanceService.refreshBalance();
         this.blockchainService.refreshBlockchain();
         this.addressService.refreshAddresses();
+        this.utxoService.refreshUtxos();
     }
 
     @Override

app/src/main/java/net/mynero/wallet/adapter/CoinsInfoAdapter.java

@@ -0,0 +1,111 @@
+/*
+ * Copyright (c) 2017 m2049r
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package net.mynero.wallet.adapter;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import androidx.recyclerview.widget.RecyclerView;
+
+import net.mynero.wallet.R;
+import net.mynero.wallet.model.CoinsInfo;
+import net.mynero.wallet.model.Wallet;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class CoinsInfoAdapter extends RecyclerView.Adapter<CoinsInfoAdapter.ViewHolder> {
+
+    private List<CoinsInfo> localDataSet;
+    private List<String> selectedUtxos;
+    private CoinsInfoAdapterListener listener = null;
+
+    /**
+     * Initialize the dataset of the Adapter.
+     */
+    public CoinsInfoAdapter(CoinsInfoAdapterListener listener) {
+        this.listener = listener;
+        this.localDataSet = new ArrayList<>();
+        this.selectedUtxos = new ArrayList<>();
+    }
+
+    public void submitList(List<CoinsInfo> dataSet, List<String> selectedUtxos) {
+        this.localDataSet = dataSet;
+        this.selectedUtxos = selectedUtxos;
+        notifyDataSetChanged();
+    }
+
+    public void updateSelectedUtxos(List<String> selectedUtxos) {
+        this.selectedUtxos = selectedUtxos;
+        notifyDataSetChanged();
+    }
+
+    // Create new views (invoked by the layout manager)
+    @Override
+    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
+        // Create a new view, which defines the UI of the list item
+        View view = LayoutInflater.from(viewGroup.getContext())
+                .inflate(R.layout.utxo_selection_item, viewGroup, false);
+
+        return new ViewHolder(listener, view);
+    }
+
+    // Replace the contents of a view (invoked by the layout manager)
+    @Override
+    public void onBindViewHolder(ViewHolder viewHolder, final int position) {
+        CoinsInfo tx = localDataSet.get(position);
+        viewHolder.bind(tx, selectedUtxos);
+    }
+
+    // Return the size of your dataset (invoked by the layout manager)
+    @Override
+    public int getItemCount() {
+        return localDataSet.size();
+    }
+
+    public interface CoinsInfoAdapterListener {
+        void onUtxoSelected(CoinsInfo coinsInfo);
+    }
+
+    /**
+     * Provide a reference to the type of views that you are using
+     * (custom ViewHolder).
+     */
+    public static class ViewHolder extends RecyclerView.ViewHolder {
+        private CoinsInfoAdapterListener listener = null;
+
+        public ViewHolder(CoinsInfoAdapterListener listener, View view) {
+            super(view);
+            this.listener = listener;
+        }
+
+        public void bind(CoinsInfo coinsInfo, List<String> selectedUtxos) {
+            boolean selected = selectedUtxos.contains(coinsInfo.getKeyImage());
+            TextView keyImageTextView = itemView.findViewById(R.id.utxo_key_image_textview);
+            TextView amountTextView = itemView.findViewById(R.id.utxo_amount_textview);
+            amountTextView.setText(Wallet.getDisplayAmount(coinsInfo.getAmount()));
+            keyImageTextView.setText(coinsInfo.getKeyImage());
+            itemView.setOnLongClickListener(view -> {
+                listener.onUtxoSelected(coinsInfo);
+                return true;
+            });
+        }
+    }
+}
+

app/src/main/java/net/mynero/wallet/fragment/dialog/SendBottomSheetDialog.java

@@ -27,16 +27,20 @@ import com.google.zxing.client.android.Intents;
 import com.journeyapps.barcodescanner.ScanContract;
 import com.journeyapps.barcodescanner.ScanOptions;
 import net.mynero.wallet.R;
+import net.mynero.wallet.model.CoinsInfo;
 import net.mynero.wallet.model.PendingTransaction;
 import net.mynero.wallet.model.Wallet;
 import net.mynero.wallet.service.BalanceService;
 import net.mynero.wallet.service.TxService;
+import net.mynero.wallet.service.UTXOService;
 import net.mynero.wallet.util.Helper;
 import net.mynero.wallet.util.UriData;
 
+import java.util.ArrayList;
 import java.util.List;
 
 public class SendBottomSheetDialog extends BottomSheetDialogFragment {
+    public ArrayList<String> selectedUtxos = new ArrayList<>();
     private final MutableLiveData<Boolean> _sendingMax = new MutableLiveData<>(false);
     public LiveData<Boolean> sendingMax = _sendingMax;    private final ActivityResultLauncher<String> cameraPermissionsLauncher = registerForActivityResult(new ActivityResultContracts.RequestPermission(),
             granted -> {
@@ -61,6 +65,7 @@ public class SendBottomSheetDialog extends BottomSheetDialogFragment {
     private TextView addressTextView;
     private TextView amountTextView;
     private TextView feeRadioGroupLabelTextView;
+    private TextView selectedUtxosValueTextView;
     private Button createButton;
     private Button sendButton;
     private Button sendMaxButton;
@@ -92,6 +97,7 @@ public class SendBottomSheetDialog extends BottomSheetDialogFragment {
         amountTextView = view.findViewById(R.id.amount_pending_textview);
         feeRadioGroup = view.findViewById(R.id.tx_fee_radiogroup);
         feeRadioGroupLabelTextView = view.findViewById(R.id.tx_fee_radiogroup_label_textview);
+        selectedUtxosValueTextView = view.findViewById(R.id.selected_utxos_value_textview);
 
         if (uriData != null) {
             addressEditText.setText(uriData.getAddress());
@@ -100,6 +106,22 @@ public class SendBottomSheetDialog extends BottomSheetDialogFragment {
             }
         }
 
+        if(!selectedUtxos.isEmpty()) {
+            long selectedValue = 0;
+
+            for(CoinsInfo coinsInfo : UTXOService.getInstance().getUtxos()) {
+                if(selectedUtxos.contains(coinsInfo.getKeyImage())) {
+                    selectedValue += coinsInfo.getAmount();
+                }
+            }
+
+            String valueString = Wallet.getDisplayAmount(selectedValue);
+            selectedUtxosValueTextView.setVisibility(View.VISIBLE);
+            selectedUtxosValueTextView.setText(getResources().getString(R.string.selected_utxos_value, valueString));
+        } else {
+            selectedUtxosValueTextView.setVisibility(View.GONE);
+        }
+
         bindObservers();
         bindListeners();
     }
@@ -232,7 +254,7 @@ public class SendBottomSheetDialog extends BottomSheetDialogFragment {
 
     private void createTx(String address, String amount, boolean sendAll, PendingTransaction.Priority feePriority) {
         AsyncTask.execute(() -> {
-            PendingTransaction pendingTx = TxService.getInstance().createTx(address, amount, sendAll, feePriority);
+            PendingTransaction pendingTx = TxService.getInstance().createTx(address, amount, sendAll, feePriority, selectedUtxos);
             if (pendingTx != null && pendingTx.getStatus() == PendingTransaction.Status.Status_Ok) {
                 _pendingTransaction.postValue(pendingTx);
             } else {

app/src/main/java/net/mynero/wallet/fragment/settings/SettingsFragment.java

@@ -18,7 +18,11 @@ import androidx.annotation.Nullable;
 import androidx.appcompat.widget.SwitchCompat;
 import androidx.constraintlayout.widget.ConstraintLayout;
 import androidx.fragment.app.Fragment;
+import androidx.fragment.app.FragmentActivity;
+import androidx.fragment.app.FragmentManager;
 import androidx.lifecycle.ViewModelProvider;
+import androidx.navigation.NavDirections;
+import androidx.navigation.fragment.NavHostFragment;
 
 import net.mynero.wallet.R;
 import net.mynero.wallet.data.DefaultNodes;
@@ -73,6 +77,8 @@ public class SettingsFragment extends Fragment implements PasswordBottomSheetDia
         super.onViewCreated(view, savedInstanceState);
         mViewModel = new ViewModelProvider(this).get(SettingsViewModel.class);
         Button displaySeedButton = view.findViewById(R.id.display_seed_button);
+        Button displayUtxosButton = view.findViewById(R.id.display_utxos_button);
+
         selectNodeButton = view.findViewById(R.id.select_node_button);
         SwitchCompat nightModeSwitch = view.findViewById(R.id.day_night_switch);
         SwitchCompat torSwitch = view.findViewById(R.id.tor_switch);
@@ -138,6 +144,10 @@ public class SettingsFragment extends Fragment implements PasswordBottomSheetDia
             }
         });
 
+        displayUtxosButton.setOnClickListener(view1 -> {
+            navigate(R.id.nav_to_utxos);
+        });
+
         TextView statusTextView = view.findViewById(R.id.status_textview);
         BlockchainService.getInstance().connectionStatus.observe(getViewLifecycleOwner(), connectionStatus -> {
             if(connectionStatus == Wallet.ConnectionStatus.ConnectionStatus_Connected) {
@@ -218,4 +228,16 @@ public class SettingsFragment extends Fragment implements PasswordBottomSheetDia
         dialog.listener = this;
         dialog.show(getActivity().getSupportFragmentManager(), "node_selection_dialog");
     }
+
+    private void navigate(int destination) {
+        FragmentActivity activity = getActivity();
+        if (activity != null) {
+            FragmentManager fm = activity.getSupportFragmentManager();
+            NavHostFragment navHostFragment =
+                    (NavHostFragment) fm.findFragmentById(R.id.nav_host_fragment);
+            if (navHostFragment != null) {
+                navHostFragment.getNavController().navigate(destination);
+            }
+        }
+    }
 }

app/src/main/java/net/mynero/wallet/fragment/utxos/UtxosFragment.java

@@ -0,0 +1,96 @@
+package net.mynero.wallet.fragment.utxos;
+
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.Button;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
+import androidx.lifecycle.ViewModelProvider;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+import net.mynero.wallet.R;
+import net.mynero.wallet.adapter.CoinsInfoAdapter;
+import net.mynero.wallet.fragment.dialog.SendBottomSheetDialog;
+import net.mynero.wallet.model.CoinsInfo;
+import net.mynero.wallet.service.UTXOService;
+
+import java.util.ArrayList;
+
+public class UtxosFragment extends Fragment implements CoinsInfoAdapter.CoinsInfoAdapterListener {
+
+    private UtxosViewModel mViewModel;
+    private ArrayList<String> selectedUtxos = new ArrayList<>();
+    private CoinsInfoAdapter adapter = new CoinsInfoAdapter(this);
+    private Button sendUtxosButton;
+
+    @Override
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
+                             @Nullable Bundle savedInstanceState) {
+        return inflater.inflate(R.layout.fragment_utxos, container, false);
+    }
+
+    @Override
+    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
+        super.onViewCreated(view, savedInstanceState);
+        mViewModel = new ViewModelProvider(this).get(UtxosViewModel.class);
+        bindListeners(view);
+        bindObservers(view);
+    }
+
+    private void bindListeners(View view) {
+        sendUtxosButton = view.findViewById(R.id.send_utxos_button);
+        sendUtxosButton.setVisibility(View.GONE);
+        sendUtxosButton.setOnClickListener(view1 -> {
+            SendBottomSheetDialog sendDialog = new SendBottomSheetDialog();
+            sendDialog.selectedUtxos = selectedUtxos;
+            sendDialog.show(getActivity().getSupportFragmentManager(), null);
+        });
+    }
+
+    private void bindObservers(View view) {
+        RecyclerView utxosRecyclerView = view.findViewById(R.id.transaction_history_recyclerview);
+        UTXOService utxoService = UTXOService.getInstance();
+        utxosRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
+        utxosRecyclerView.setAdapter(adapter);
+        if (utxoService != null) {
+            utxoService.utxos.observe(getViewLifecycleOwner(), utxos -> {
+                ArrayList<CoinsInfo> filteredUtxos = new ArrayList<>();
+                for(CoinsInfo coinsInfo : utxos) {
+                    if(!coinsInfo.isSpent()) {
+                        filteredUtxos.add(coinsInfo);
+                    }
+                }
+                if (filteredUtxos.isEmpty()) {
+                    utxosRecyclerView.setVisibility(View.GONE);
+                } else {
+                    adapter.submitList(filteredUtxos, selectedUtxos);
+                    utxosRecyclerView.setVisibility(View.VISIBLE);
+                }
+            });
+        }
+    }
+
+    @Override
+    public void onUtxoSelected(CoinsInfo coinsInfo) {
+        boolean selected = selectedUtxos.contains(coinsInfo.getKeyImage());
+        if(selected) {
+            System.out.println("Deselecting: " + coinsInfo.getKeyImage());
+            selectedUtxos.remove(coinsInfo.getKeyImage());
+        } else {
+            System.out.println("Selecting: " + coinsInfo.getKeyImage());
+            selectedUtxos.add(coinsInfo.getKeyImage());
+        }
+
+        if(selectedUtxos.isEmpty()) {
+            sendUtxosButton.setVisibility(View.GONE);
+        } else {
+            sendUtxosButton.setVisibility(View.VISIBLE);
+        }
+
+        adapter.updateSelectedUtxos(selectedUtxos);
+    }
+}

app/src/main/java/net/mynero/wallet/fragment/utxos/UtxosViewModel.java

@@ -0,0 +1,7 @@
+package net.mynero.wallet.fragment.utxos;
+
+import androidx.lifecycle.ViewModel;
+
+public class UtxosViewModel extends ViewModel {
+
+}

app/src/main/java/net/mynero/wallet/model/CoinsInfo.java

@@ -32,11 +32,13 @@ public class CoinsInfo  implements Parcelable {
     long globalOutputIndex;
     boolean spent;
     String keyImage;
+    long amount;
 
-    public CoinsInfo(long globalOutputIndex, boolean spent, String keyImage) {
+    public CoinsInfo(long globalOutputIndex, boolean spent, String keyImage, long amount) {
         this.globalOutputIndex = globalOutputIndex;
         this.spent = spent;
         this.keyImage = keyImage;
+        this.amount = amount;
     }
 
     protected CoinsInfo(Parcel in) {
@@ -67,6 +69,10 @@ public class CoinsInfo  implements Parcelable {
         return keyImage;
     }
 
+    public long getAmount() {
+        return amount;
+    }
+
     @Override
     public int describeContents() {
         return 0;

app/src/main/java/net/mynero/wallet/service/MoneroHandlerThread.java

@@ -122,10 +122,14 @@ public class MoneroHandlerThread extends Thread implements WalletListener {
         listener.onRefresh();
     }
 
-    public PendingTransaction createTx(String address, String amountStr, boolean sendAll, PendingTransaction.Priority feePriority) {
+    public PendingTransaction createTx(String address, String amountStr, boolean sendAll, PendingTransaction.Priority feePriority, ArrayList<String> selectedUtxos) {
         long amount = sendAll ? SWEEP_ALL : Wallet.getAmountFromString(amountStr);
-        ArrayList<String> preferredInputs = new ArrayList<>();
+        ArrayList<String> preferredInputs;
-        preferredInputs.add("");
+        if(selectedUtxos.isEmpty()) {
+            preferredInputs = UTXOService.getInstance().selectUtxos(amount, sendAll);
+        } else {
+            preferredInputs = selectedUtxos;
+        }
         return wallet.createTransaction(new TxData(address, amount, 0, feePriority, preferredInputs));
     }
 

app/src/main/java/net/mynero/wallet/service/TxService.java

@@ -2,6 +2,8 @@ package net.mynero.wallet.service;
 
 import net.mynero.wallet.model.PendingTransaction;
 
+import java.util.ArrayList;
+
 public class TxService extends ServiceBase {
     public static TxService instance = null;
 
@@ -14,8 +16,8 @@ public class TxService extends ServiceBase {
         return instance;
     }
 
-    public PendingTransaction createTx(String address, String amount, boolean sendAll, PendingTransaction.Priority feePriority) {
+    public PendingTransaction createTx(String address, String amount, boolean sendAll, PendingTransaction.Priority feePriority, ArrayList<String> selectedUtxos) {
-        return this.getThread().createTx(address, amount, sendAll, feePriority);
+        return this.getThread().createTx(address, amount, sendAll, feePriority, selectedUtxos);
     }
 
     public boolean sendTx(PendingTransaction pendingTransaction) {

app/src/main/java/net/mynero/wallet/service/UTXOService.java

@@ -0,0 +1,60 @@
+package net.mynero.wallet.service;
+
+import androidx.lifecycle.LiveData;
+import androidx.lifecycle.MutableLiveData;
+
+import net.mynero.wallet.model.CoinsInfo;
+import net.mynero.wallet.model.TransactionInfo;
+import net.mynero.wallet.model.Wallet;
+import net.mynero.wallet.model.WalletManager;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+public class UTXOService extends ServiceBase {
+    public static UTXOService instance = null;
+    private final MutableLiveData<List<CoinsInfo>> _utxos = new MutableLiveData<>();
+    public LiveData<List<CoinsInfo>> utxos = _utxos;
+    public UTXOService(MoneroHandlerThread thread) {
+        super(thread);
+        instance = this;
+    }
+
+    public static UTXOService getInstance() {
+        return instance;
+    }
+
+    public void refreshUtxos() {
+        _utxos.postValue(getUtxos());
+    }
+
+    public List<CoinsInfo> getUtxos() {
+        return WalletManager.getInstance().getWallet().getCoins().getAll();
+    }
+
+    public ArrayList<String> selectUtxos(long amount, boolean sendAll) {
+        ArrayList<String> selectedUtxos = new ArrayList<>();
+        List<CoinsInfo> utxos = getUtxos();
+        if(sendAll) {
+            for(CoinsInfo coinsInfo : utxos) {
+                selectedUtxos.add(coinsInfo.getKeyImage());
+            }
+        } else {
+            long amountSelected = 0;
+            Collections.shuffle(utxos);
+            for (CoinsInfo coinsInfo : utxos) {
+                if (amount == Wallet.SWEEP_ALL) {
+                    selectedUtxos.add(coinsInfo.getKeyImage());
+                } else {
+                    if (amountSelected <= amount) {
+                        selectedUtxos.add(coinsInfo.getKeyImage());
+                        amountSelected += coinsInfo.getAmount();
+                    }
+                }
+            }
+        }
+
+        return selectedUtxos;
+    }
+}

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

@@ -56,6 +56,18 @@
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toBottomOf="@id/wallet_settings_textview" />
 
+        <Button
+            android:id="@+id/display_utxos_button"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp"
+            android:background="@drawable/button_bg"
+            android:text="@string/view_utxos"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintHorizontal_bias="0.0"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/display_seed_button" />
+
         <TextView
             android:id="@+id/appearance_settings_textview"
             android:layout_width="match_parent"
@@ -66,7 +78,7 @@
             android:textStyle="bold"
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/display_seed_button" />
+            app:layout_constraintTop_toBottomOf="@id/display_utxos_button" />
 
         <TextView
             android:id="@+id/day_night_textview"

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

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context="net.mynero.wallet.fragment.home.HomeFragment">
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/transaction_history_recyclerview"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_marginTop="16dp"
+        android:clipToPadding="false"
+        android:paddingStart="24dp"
+        android:paddingEnd="24dp"
+        android:paddingBottom="128dp"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent"
+        app:layout_constraintVertical_bias="0.0" />
+
+    <Button
+        android:id="@+id/send_utxos_button"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:layout_marginEnd="24dp"
+        android:layout_marginBottom="24dp"
+        android:background="@drawable/button_bg"
+        android:text="@string/send"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -25,7 +25,17 @@
             app:layout_constraintEnd_toEndOf="parent"
             app:layout_constraintStart_toStartOf="parent"
             app:layout_constraintTop_toTopOf="parent" />
-
+        <TextView
+            android:id="@+id/selected_utxos_value_textview"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginBottom="16dp"
+            android:text="@string/selected_utxos_value"
+            android:textSize="16sp"
+            app:layout_constraintBottom_toTopOf="@id/address_edittext"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toBottomOf="@id/send_monero_textview" />
         <EditText
             android:id="@+id/address_edittext"
             android:layout_width="0dp"
@@ -38,7 +48,7 @@
             app:layout_constraintBottom_toTopOf="@id/amount_edittext"
             app:layout_constraintEnd_toStartOf="@id/paste_address_imagebutton"
             app:layout_constraintStart_toStartOf="parent"
-            app:layout_constraintTop_toBottomOf="@id/send_monero_textview"
+            app:layout_constraintTop_toBottomOf="@id/selected_utxos_value_textview"
             tools:visibility="visible" />
 
         <ImageButton

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

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout 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"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="8dp"
+    android:layout_marginBottom="8dp">
+    <TextView
+        android:id="@+id/utxo_key_image_textview"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="Key Image"
+        android:textStyle="bold"
+        android:textSize="16sp"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintBottom_toTopOf="@id/utxo_amount_textview"
+        app:layout_constraintTop_toTopOf="parent"/>
+    <TextView
+        android:id="@+id/utxo_amount_textview"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
+        android:text="Amount"
+        android:ellipsize="middle"
+        app:layout_constraintTop_toBottomOf="@id/utxo_key_image_textview"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        android:singleLine="true" />
+</androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -30,7 +30,17 @@
         android:id="@+id/settings_fragment"
         android:name="net.mynero.wallet.fragment.settings.SettingsFragment"
         android:label="fragment_send_amount"
-        tools:layout="@layout/fragment_settings" />
+        tools:layout="@layout/fragment_settings">
+        <action
+            android:id="@+id/nav_to_utxos"
+            app:destination="@id/utxos_fragment">
+        </action>
+    </fragment>
+    <fragment
+        android:id="@+id/utxos_fragment"
+        android:name="net.mynero.wallet.fragment.utxos.UtxosFragment"
+        android:label="fragment_utxos"
+        tools:layout="@layout/fragment_utxos" />
     <fragment
         android:id="@+id/onboarding_fragment"
         android:name="net.mynero.wallet.fragment.onboarding.OnboardingFragment"

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

@@ -101,4 +101,6 @@
     <string name="low">Low</string>
     <string name="medium">Medium</string>
     <string name="high">High</string>
+    <string name="view_utxos">View UTXOs</string>
+    <string name="selected_utxos_value">Selected value: %1$s XMR</string>
 </resources>