Add basic churning feature with warning

not tested yet

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

@@ -55,6 +55,7 @@ public class SendBottomSheetDialog extends BottomSheetDialogFragment {
             });
     public LiveData<PendingTransaction> pendingTransaction = _pendingTransaction;
     public UriData uriData = null;
+    public boolean isChurning = false;
     public PendingTransaction.Priority priority;
     private EditText addressEditText;
     private EditText amountEditText;
@@ -118,7 +119,11 @@ public class SendBottomSheetDialog extends BottomSheetDialogFragment {
 
             String valueString = Wallet.getDisplayAmount(selectedValue);
             selectedUtxosValueTextView.setVisibility(View.VISIBLE);
-            selectedUtxosValueTextView.setText(getResources().getString(R.string.selected_utxos_value, valueString));
+            if(isChurning) {
+                selectedUtxosValueTextView.setText(getResources().getString(R.string.selected_utxos_value_churning, valueString));
+            } else {
+                selectedUtxosValueTextView.setText(getResources().getString(R.string.selected_utxos_value, valueString));
+            }
         } else {
             selectedUtxosValueTextView.setVisibility(View.GONE);
         }

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

@@ -17,7 +17,9 @@ 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.AddressService;
 import net.mynero.wallet.service.UTXOService;
+import net.mynero.wallet.util.UriData;
 
 import java.util.ArrayList;
 import java.util.Collections;
@@ -28,6 +30,7 @@ public class UtxosFragment extends Fragment implements CoinsInfoAdapter.CoinsInf
     private final ArrayList<String> selectedUtxos = new ArrayList<>();
     private final CoinsInfoAdapter adapter = new CoinsInfoAdapter(this);
     private Button sendUtxosButton;
+    private Button churnUtxosButton;
 
     @Override
     public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container,
@@ -45,12 +48,21 @@ public class UtxosFragment extends Fragment implements CoinsInfoAdapter.CoinsInf
 
     private void bindListeners(View view) {
         sendUtxosButton = view.findViewById(R.id.send_utxos_button);
+        churnUtxosButton = view.findViewById(R.id.churn_utxos_button);
         sendUtxosButton.setVisibility(View.GONE);
+        churnUtxosButton.setVisibility(View.GONE);
         sendUtxosButton.setOnClickListener(view1 -> {
             SendBottomSheetDialog sendDialog = new SendBottomSheetDialog();
             sendDialog.selectedUtxos = selectedUtxos;
             sendDialog.show(getActivity().getSupportFragmentManager(), null);
         });
+        churnUtxosButton.setOnClickListener(view1 -> {
+            SendBottomSheetDialog sendDialog = new SendBottomSheetDialog();
+            sendDialog.isChurning = true;
+            sendDialog.uriData = UriData.parse(AddressService.getInstance().getLatestSubaddress().getAddress());
+            sendDialog.selectedUtxos = selectedUtxos;
+            sendDialog.show(getActivity().getSupportFragmentManager(), null);
+        });
     }
 
     private void bindObservers(View view) {

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

@@ -110,7 +110,7 @@
             android:layout_height="wrap_content"
             android:background="@drawable/button_bg_left"
             android:text="@string/receive"
-            android:layout_marginBottom="16dp"
+            android:layout_marginBottom="24dp"
             android:layout_marginStart="24dp"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toStartOf="@id/send_button"
@@ -122,7 +122,7 @@
             android:layout_height="wrap_content"
             android:background="@drawable/button_bg_right"
             android:text="@string/send"
-            android:layout_marginBottom="16dp"
+            android:layout_marginBottom="24dp"
             android:layout_marginEnd="24dp"
             app:layout_constraintBottom_toBottomOf="parent"
             app:layout_constraintEnd_toEndOf="parent"

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

@@ -4,7 +4,6 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:padding="24dp"
     tools:context="net.mynero.wallet.fragment.home.HomeFragment">
 
     <TextView
@@ -14,6 +13,9 @@
         android:text="@string/view_utxos"
         android:textSize="32sp"
         android:textStyle="bold"
+        android:layout_marginTop="24dp"
+        android:layout_marginStart="24dp"
+        android:layout_marginEnd="24dp"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toTopOf="parent" />
@@ -25,20 +27,43 @@
         android:layout_marginTop="16dp"
         android:clipToPadding="false"
         android:paddingBottom="128dp"
+        android:layout_marginStart="24dp"
+        android:layout_marginEnd="24dp"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
         app:layout_constraintTop_toBottomOf="@id/view_utxos_textview"
         app:layout_constraintVertical_bias="0.0" />
 
-    <Button
-        android:id="@+id/send_utxos_button"
-        android:layout_width="0dp"
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/utxos_options_layout"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:background="@drawable/button_bg"
-        android:visibility="gone"
-        android:text="@string/send"
-        tools:visibility="visible"
+        android:layout_marginStart="24dp"
+        android:layout_marginEnd="24dp"
+        android:layout_marginBottom="24dp"
         app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent" />
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent">
+
+        <Button
+            android:id="@+id/churn_utxos_button"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:background="@drawable/button_bg_left"
+            android:text="@string/churn"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toStartOf="@id/send_utxos_button"
+            app:layout_constraintStart_toStartOf="parent" />
+
+        <Button
+            android:id="@+id/send_utxos_button"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:background="@drawable/button_bg_right"
+            android:text="@string/send"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@id/churn_utxos_button" />
+    </androidx.constraintlayout.widget.ConstraintLayout>
 </androidx.constraintlayout.widget.ConstraintLayout>

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

@@ -94,7 +94,9 @@
     <string name="high">High</string>
     <string name="view_utxos">View UTXOs</string>
     <string name="selected_utxos_value">Selected value: %1$s XMR</string>
+    <string name="selected_utxos_value_churning">Selected value: %1$s XMR\n\nThe anonymity benefits of churning are still being researched. Only proceed if you know what you are doing.</string>
     <string name="global_index_text">Global Idx: %1$d</string>
     <string name="outpoint_text">Outpoint: %1$s</string>
     <string name="create_wallet_failed">Create wallet failed: %1$s</string>
+    <string name="churn">Churn</string>
 </resources>